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Dr Andreas Koch

Formerly at Lancaster University

  1. 2002
  2. Published

    Europium abundances in F and G disk dwarfs

    Koch, A. & Edvardsson, B., 01/2002, In: Astronomy and Astrophysics. 381, 2, p. 500-506 7 p.

    Research output: Contribution to journalJournal articlepeer-review

  3. 2003
  4. Published

    A calibration map for the Wide Field Imager

    Koch, A., Odenkirchen, M., Caldwell, J. A. R. & Grebel, E. K., 2003, In: Astronomical Notes / Astronomische Nachrichten. 324, S2, p. 95 1 p.

    Research output: Contribution to journalMeeting abstract

  5. Published

    A retrospective of r-process and a-element abundances in the Galactic disk: correlations with rotational velocity

    Koch, A., Grebel, E. K. & Odenkirchen, M., 2003, In: Astronomical Notes / Astronomische Nachrichten. 324, S3, p. 144-145 2 p.

    Research output: Contribution to journalMeeting abstract

  6. Published

    Mass segregation in the low-concentration globular cluster Palomar 5

    Koch, A., Odenkirchen, M., Grebel, E. K., Martinez-Delgado, D. & Caldwell, J. A. R., 2003, In: Astronomical Notes / Astronomische Nachrichten. 324, S3, p. 144 1 p.

    Research output: Contribution to journalMeeting abstract

  7. Published

    The luminosity function of the globular cluster Palomar 5 and its tidal tails

    Koch, A., 2003, University of Heidelberg.

    Research output: ThesisMaster's Thesis

  8. Published

    The mass function of the globular cluster Palomar 5 and its tidal tails

    Koch, A., Odenkirchen, M., Caldwell, J. A. R. & Grebel, E. K., 2003, In: Astronomical Notes / Astronomische Nachrichten. 324, S2, p. 79 1 p.

    Research output: Contribution to journalMeeting abstract

  9. Published

    A calibration map for Wide Field Imager photometry

    Koch, A., Odenkirchen, M., Grebel, E. K. & Caldwell, J. A. R., 8/12/2003, In: Astronomical Notes / Astronomische Nachrichten. 325, 4, p. 299-306 8 p.

    Research output: Contribution to journalJournal articlepeer-review

  10. 2004
  11. Published

    Correcting spatial gradients: the case of Wide Field Imager photometry

    Koch, A., Grebel, E. K., Odenkirchen, M. & Caldwell, J. A. R., 2004, In: The Messenger. 115, p. 37-39 3 p.

    Research output: Contribution to journalJournal article

  12. Published

    R-process and α-elements in the Galactic disk: kinematic correlations

    Koch, A. & Grebel, E. K., 2004, Planets to Cosmology: Essential Science In Hubble’s Final Years. Livio, M. & Casertano, S. (eds.). Cambridge University Press, 5 p. (Space Telescope Science Institute Symposium Series).

    Research output: Contribution in Book/Report/Proceedings - With ISBN/ISSNConference contribution/Paperpeer-review

  13. Published

    The luminosity function of Palomar 5 and Its tidal tails

    Koch, A., Odenkirchen, M., Grebel, E. K., Martinez-Delgado, D. & Caldwell, J. A. R., 2004, In: ASP Conference Series. 327, p. 333-336 4 p.

    Research output: Contribution to journalJournal article

  14. Published

    The metallicity and age distribution of the Carina dwarf spheroidal galaxy

    Koch, A., Grebel, E. K., Harbeck, D., Wilkinson, M. I., Kleyna, J., Gilmore, G., Wyse, R. F. G. & Evans, N. W., 2004, In: Astronomical Notes / Astronomische Nachrichten. 325, S1, p. 44 1 p.

    Research output: Contribution to journalMeeting abstract

  15. Published

    Mass segregation in the globular cluster Palomar 5 and its tidal tails

    Koch, A., Grebel, E. K., Odenkirchen, M., Martínez-Delgado, D. & Caldwell, J. A. R., 11/2004, In: The Astronomical Journal. 128, 5, p. 2274-2287 14 p.

    Research output: Contribution to journalJournal articlepeer-review

  16. 2005
  17. Published

    Chemical evolution in the Carina dwarf spheroidal

    Koch, A., Grebel, E. K., Harbeck, D., Wilkinson, M. I., Kleyna, J., Gilmore, G., Wyse, R. F. G. & Evans, N. W., 2005, Chemical Abundances and Mixing in Stars in the Milky Way and its Satellites. Randich, S. & Pasquini, L. (eds.). Springer, p. 249-251 3 p. (ESO Astrophysics Symposia).

    Research output: Contribution in Book/Report/Proceedings - With ISBN/ISSNConference contribution/Paperpeer-review

  18. Published

    Further evidence for a merger origin for the Thick disk: Galactic stars along line-of-sight to dwarf spheroidal galaxies

    Wyse, R. F. G., Gilmore, G., Norris, J., Wilkinson, M. I., Kleyna, J., Koch, A., Evans, N. W. & Grebel, E. K., 2005, In: Bulletin of the American Astronomical Society. 37, p. 1368

    Research output: Contribution to journalMeeting abstract

  19. Published

    Satellite anisotropies: a polar great plane of M31 early-type companions

    Grebel, E. K., Koch, A. & Sambhus, N., 2005, In: Bulletin of the American Astronomical Society. 37, p. 1346

    Research output: Contribution to journalMeeting abstract

  20. Published

    Star clusters in the large magellanic cloud

    Glatt, K., Grebel, E. K. & Koch, A., 2005, In: Astronomical Notes / Astronomische Nachrichten. 326, 7, p. 651-652 2 p.

    Research output: Contribution to journalMeeting abstract

  21. Published

    Stellar kinematics in the Leo I dwarf spheroidal galaxy: wide field implications for galactic mass profiles

    Koch, A., Wilkinson, M. I., Kleyna, J., Gilmore, G., Evans, N. W. & Grebel, E. K., 2005, In: Bulletin of the American Astronomical Society. 37, p. 1345

    Research output: Contribution to journalMeeting abstract

  22. Published

    Substructure in dwarf spheroidals: a star cluster connection?

    Wilkinson, M. I., Kleyna, J., Evans, N. W., Gilmore, G., Grebel, E. K., Koch, A., Read, J. & Young, R., 2005, In: Proceedings of the International Astronomical Union. 1, C198, p. 240-243 4 p.

    Research output: Contribution to journalJournal article

  23. Published

    The chemical evolution of subpopulations in the Carina dwarf spheroidal

    Koch, A., Wilkinson, M., Grebel, E. K., Harbeck, D., Kleyna, J., Wyse, R. F. G., Gilmore, G. & Evans, N. W., 2005, In: Proceedings of the International Astronomical Union. 1, C198, p. 134-138 5 p.

    Research output: Contribution to journalJournal article

  24. Published

    Andromeda IX: properties of the faintest M31 dwarf satellite galaxy

    Harbeck, D., Gallagher III, J. S., Grebel, E. K., Koch, A. & Zucker, D. B., 10/04/2005, In: The Astrophysical Journal. 623, 1, p. 159-163 5 p.

    Research output: Contribution to journalJournal articlepeer-review

  25. 2006
  26. Published

    Chemical and kinematical evolution in nearby dwarf spheroidal galaxies

    Koch, A., 2006, University of Basel. 194 p.

    Research output: ThesisDoctoral Thesis

  27. Published

    Probing the dark matter content of Local Group dwarf spheroidal galaxies with FLAMES

    Wilkinson, M. I., Kleyna, J., Gilmore, G., Evans, N. W., Koch, A., Grebel, E. K., Wyse, R. F. G. & Harbeck, D., 2006, In: The Messenger. 124, p. 25-29 5 p.

    Research output: Contribution to journalJournal article

  28. Published

    The age-metallicity degeneracy in the dwarf spheroidal Carina as seen by FLAMES

    Koch, A., Grebel, E. K., Wyse, R. F. G., Kleyna, J., Wilkinson, M. I., Harbeck, D., Gilmore, G. & Evans, N. W., 2006, In: The Messenger. 123, p. 38-40 3 p.

    Research output: Contribution to journalJournal article

  29. Published

    The internal kinematics of dwarf spheroidal galaxies

    Wilkinson, M. I., Kleyna, J., Evans, N. W., Gilmore, G., Read, J. I., Koch, A., Grebel, E. K. & Irwin, M., 2006, In: EAS Publications Series. 20, p. 29-32 4 p.

    Research output: Contribution to journalJournal article

  30. Published

    Complexity on small scales: the metallicity distribution of the Carina dwarf spheroidal galaxy

    Koch, A., Grebel, E. K., Wyse, R. F. G., Kleyna, J., Wilkinson, M. I., Harbeck, D., Gilmore, G. & Wyn Evans, N., 02/2006, In: The Astronomical Journal. 131, 2, p. 895-911 17 p.

    Research output: Contribution to journalJournal articlepeer-review

  31. Published

    The anisotropic distribution of M31 satellite galaxies: a polar great plane of early-type companions

    Koch, A. & Grebel, E. K., 03/2006, In: The Astronomical Journal. 131, 3, p. 1405-1415 11 p.

    Research output: Contribution to journalJournal articlepeer-review

  32. Published

    Further evidence of a merger origin for the thick disk: galactic stars along lines of sight to dwarf spheroidal galaxies

    Wyse, R. F. G., Gilmore, G., Norris, J., Wilkinson, M. I., Kleyna, J., Koch, A., Evans, N. W. & Grebel, E. K., 1/03/2006, In: Astrophysical Journal Letters. 639, 1, p. L13-L16 4 p.

    Research output: Contribution to journalJournal articlepeer-review

  33. 2007
  34. Published

    A spectroscopy-based age-metallicity relation of the SMC

    Kayser, A., Grebel, E. K., Harbeck, D., Cole, A. A., Koch, A., Glatt, K., Gallagher III, J. S. & Da Costa, G., 2007, Stellar Populations as Building Blocks of Galaxies. Peletier, R. F. & Vazdekis, A. (eds.). Cambridge University Press, Vol. 2. p. 351-352 2 p. (Proceedings of the International Astronomical Union; vol. S241).

    Research output: Contribution in Book/Report/Proceedings - With ISBN/ISSNConference contribution/Paperpeer-review

  35. Published

    Chemical abundances in the Carina dwarf spheroidal galaxy

    Koch, A., Grebel, E. K., McWilliam, A., Wyse, R. F. G. & Gilmore, G. F., 2007, In: Astronomical Notes / Astronomische Nachrichten. 328, 7, p. 652 1 p., D75.

    Research output: Contribution to journalMeeting abstract

  36. Published

    Chemical abundances in the Carina dwarf spheroidal galaxy

    Koch, A., McWilliam, A., Grebel, E. K., Wyse, R. F. G. & Gilmore, G. F., 2007.

    Research output: Contribution to conference - Without ISBN/ISSN Poster

  37. Published

    Keck/Deimos spectroscopy of distant M31 fields with deep HST imaging

    Rich, R. M., Brown, T. M., Reitzel, D. B., Ferguson, H. & Koch, A., 2007, In: Bulletin of the American Astronomical Society. 38, p. 1155

    Research output: Contribution to journalMeeting abstract

  38. Published

    Kinematic and chemical constraints on the formation of M31’s inner halo structures

    Koch, A., Rich, R. M. & Reitzel, D. B., 2007, In: Astronomical Notes / Astronomische Nachrichten. 328, 7, p. 653 1 p., D76.

    Research output: Contribution to journalMeeting abstract

  39. Published

    Kinematic and chemical constraints on the formation of M31’s inner halo structures

    Koch, A., Rich, R. M. & Reitzel, D. B., 2007.

    Research output: Contribution to conference - Without ISBN/ISSN Poster

  40. Published

    Observed properties of dark matter: dynamical studies of dSph galaxies

    Gilmore, G., Wilkinson, M., Kleyna, J., Koch, A., Evans, N. W., Wyse, R. F. G. & Grebel, E. K., 2007, In: Nuclear Physics B - Proceedings Supplements. 173, p. 15-18 4 p.

    Research output: Contribution to journalJournal article

  41. Published

    Stellar kinematics in the remote Leo I and II dwarf spheroidals

    Koch, A., Wilkinson, M. I., Kleyna, J., Gilmore, G. F., Grebel, E. K., Evans, N. W. & Wyse, R. F. G., 2007.

    Research output: Contribution to conference - Without ISBN/ISSN Poster

  42. Published

    The Bulge Radial Velocity Assay [BRAVA]: techniques and results

    Howard, C. D., Reitzel, D. B., Rich, R. M., Koch, A. & Zhao, H., 2007.

    Research output: Contribution to conference - Without ISBN/ISSN Poster

  43. Published

    The line of sight velocity distribution of the Galactic bulge

    Reitzel, D. B., Howard, C. D., Rich, R. M., Koch, A. & Zhao, H., 2007, In: Bulletin of the American Astronomical Society. 38, p. 1149

    Research output: Contribution to journalMeeting abstract

  44. Published

    Complexity on small scales: II. Metallicities and ages in the Leo II dwarf spheroidal galaxy

    Koch, A., Grebel, E. K., Kleyna, J., Wilkinson, M. I., Harbeck, D., Gilmore, G., Wyse, R. F. G. & Wyn Evans, N., 01/2007, In: The Astronomical Journal. 133, 1, p. 270-283 14 p.

    Research output: Contribution to journalJournal articlepeer-review

  45. Published

    Stellar kinematics and metallicities in the Leo I dwarf spheroidal galaxy: wide-field implications for galactic evolution

    Koch, A., Wilkinson, M. I., Kleyna, J., Gilmore, G., Grebel, E. K., Mackey, A. D., Wyn Evans, N. & Wyse, R. F. G., 1/03/2007, In: The Astrophysical Journal. 657, 1, p. 241-261 21 p.

    Research output: Contribution to journalJournal articlepeer-review

  46. Published

    Stellar kinematics in the remote Leo II dwarf spheroidal galaxy: another brick in the wall

    Koch, A., Kleyna, J., Wilkinson, M. I., Grebel, E. K., Gilmore, G. F., Wyn Evans, N., Wyse, R. F. G. & Harbeck, D., 8/06/2007, In: The Astronomical Journal. 134, 2, p. 566-578 13 p.

    Research output: Contribution to journalJournal articlepeer-review

  47. Published

    The observed properties of dark matter on small spatial scales

    Gilmore, G., Wilkinson, M. I., Wyse, R. F. G., Kleyna, J., Koch, A., Wyn Evans, N. & Grebel, E. K., 10/07/2007, In: The Astrophysical Journal. 663, 2, p. 948-959 12 p.

    Research output: Contribution to journalJournal articlepeer-review

  48. Published

    A wide-field view of Leo II: a structural analysis using the Sloan Digital Sky Survey

    Coleman, M. G., Jordi, K., Rix, H-W., Grebel, E. K. & Koch, A., 1/10/2007, In: The Astronomical Journal. 134, 5, p. 1938-1951 14 p.

    Research output: Contribution to journalJournal articlepeer-review

  49. 2008
  50. Published

    Ages, distances, and fiducials for seven SMC star clusters with HST/ACS

    Glatt, K., Gallagher III, J. S., Grebel, E. K., Nota, A., Sabbi, E., Sirianni, M., Clementini, G., Tosi, M., Harbeck, D. & Koch, A., 2008, In: Bulletin of the American Astronomical Society. 39, p. 836

    Research output: Contribution to journalMeeting abstract

  51. Published

    Kinematic and chemical constraints on the formation of M31’s inner halo structures

    Reitzel, D. B., Koch, A. & Rich, R. M., 2008, In: Bulletin of the American Astronomical Society. 39, p. 897

    Research output: Contribution to journalMeeting abstract

  52. Published

    The first chemical abundance study of the Hercules dwarf spheroidal galaxy

    Koch, A., McWilliam, A. & Wilkinson, M. I., 2008, In: Bulletin of the American Astronomical Society. 39, p. 896

    Research output: Contribution to journalMeeting abstract

  53. Published

    What Is a galaxy? How cold Is cold dark matter? Recent progress in near field cosmology

    Gilmore, G., Zucker, D. B., Wilkinson, M., Wyse, R. F. G., Belokurov, V., Kleyna, J., Koch, A., Evans, N. W. & Grebel, E. K., 2008, Panoramic Views of Galaxy Formation and Evolution. Kodama, T., Yamada, T. & Aoki, K. (eds.). p. 453-456 4 p. (ASP Conference Series; vol. 399).

    Research output: Contribution in Book/Report/Proceedings - With ISBN/ISSNConference contribution/Paperpeer-review

  54. Published

    An accurate age determination for the small magellanic cloud star cluster NGC 121 with the Hubble Space Telescope / advanced camera for surveys

    Glatt, K., Gallagher III, J. S., Grebel, E. K., Nota, A., Sabbi, E., Sirianni, M., Clementini, G., Tosi, M., Harbeck, D., Koch, A. & Cracraft, M., 25/02/2008, In: The Astronomical Journal. 135, 4, p. 1106-1116 11 p.

    Research output: Contribution to journalJournal articlepeer-review

  55. Published

    A new abundance scale for the globular cluster 47 Tuc

    Koch, A. & McWilliam, A., 12/03/2008, In: The Astronomical Journal. 135, 4, p. 1551-1566 16 p.

    Research output: Contribution to journalJournal articlepeer-review

  56. Published

    Complexity on small scales III: iron and α element abundances in the Carina dwarf spheroidal galaxy

    Koch, A., Grebel, E. K., Gilmore, G. F., Wyse, R. F. G., Kleyna, J., Harbeck, D., Wilkinson, M. I. & Wyn Evans, N., 13/03/2008, In: The Astronomical Journal. 135, 4, p. 1580-1597 18 p.

    Research output: Contribution to journalJournal articlepeer-review

  57. Published

    Age determination of six intermediate-age small magellanic cloud star clusters with HST/ACS

    Glatt, K., Grebel, E. K., Sabbi, E., Gallagher III, J. S., Nota, A., Sirianni, M., Clementini, G., Tosi, M., Harbeck, D., Koch, A., Kayser, A. & Costa, G. D., 12/09/2008, In: The Astronomical Journal. 136, 4, p. 1703-1727 25 p.

    Research output: Contribution to journalJournal articlepeer-review

  58. Published

    The extended star formation history of the Andromeda spheroid at 35 kpc on the minor axis

    Brown, T. M., Beaton, R., Chiba, M., Ferguson, H. C., Gilbert, K. M., Guhathakurta, P., Iye, M., Kalirai, J. S., Koch, A., Komiyama, Y., Majewski, S. R., Reitzel, D. B., Renzini, A., Rich, R. M., Smith, E., Sweigart, A. V. & Tanaka, M., 1/10/2008, In: Astrophysical Journal Letters. 685, 2, p. L121-L124 4 p.

    Research output: Contribution to journalJournal articlepeer-review

  59. Published

    The highly unusual chemical composition of the Hercules dwarf spheroidal galaxy

    Koch, A., McWilliam, A., Grebel, E. K., Zucker, D. B. & Belokurov, V., 3/11/2008, In: Astrophysical Journal Letters. 688, 1, p. L13-L16 4 p.

    Research output: Contribution to journalJournal articlepeer-review

  60. Published

    The kinematic footprints of five stellar streams in Andromeda's halo

    Chapman, S. C., Ibata, R. A., Irwin, M., Koch, A., Letarte, B., Martin, N., Collins, M., Lewis, G. F., McConnachie, A., Peñarrubia, J., Rich, R. M., Trethewey, D., Ferguson, A., Huxor, A. & Tanvir, N., 11/11/2008, In: Monthly Notices of the Royal Astronomical Society. 390, 4, p. 1437-1452 16 p.

    Research output: Contribution to journalJournal articlepeer-review

  61. Published

    The Bulge Radial Velocity Assay (BRAVA): I. Sample selection and a rotation curve

    Howard, C. D., Rich, R. M., Reitzel, D. B., Koch, A., Propris, R. D. & Zhao, H., 1/12/2008, In: The Astrophysical Journal. 688, 2, p. 1060-1077 18 p.

    Research output: Contribution to journalJournal articlepeer-review

  62. Published

    Kinematic and chemical constraints on the formation of M31's inner and outer halo

    Koch, A., Rich, R. M., Reitzel, D. B., Martin, N. F., Ibata, R. A., Chapman, S. C., Majewski, S. R., Mori, M., Loh, Y-S., Ostheimer, J. C. & Tanaka, M., 20/12/2008, In: The Astrophysical Journal. 689, 2, p. 958-982 25 p.

    Research output: Contribution to journalJournal articlepeer-review

  63. 2009
  64. Published

    Complexity in small-scale dwarf spheroidal galaxies: Ludwig Biermann Award Lecture

    Koch, A., 2009, Reviews in Modern Astronomy: Formation and Evolution of Cosmic Structures. Röser, S. (ed.). Wiley, Vol. 21. p. 39-69 31 p.

    Research output: Contribution in Book/Report/Proceedings - With ISBN/ISSNConference contribution/Paperpeer-review

  65. Published

    Dwarf spheroidal galaxies in the M81 group of galaxies

    Lianou, S., Grebel, E. K. & Koch, A., 2009, In: Astronomical Notes / Astronomische Nachrichten. 330, 9-10, p. 995-997 3 p.

    Research output: Contribution to journalJournal articlepeer-review

  66. Published

    Early-type dwarf galaxies in the M81 group

    Lianou, S., Grebel, E. K. & Koch, A., 2009, Stellar Populations: Planning for the Next Decade. Bruzual, G. R. & Charlot, S. (eds.). Cambridge University Press, p. 115-118 4 p. (Proceedings of the International Astronomical Union; no. 262).

    Research output: Contribution in Book/Report/Proceedings - With ISBN/ISSNConference contribution/Paperpeer-review

  67. Published

    The age-metallicity relation of the SMC

    Kayser, A., Grebel, E. K., Harbeck, D., Cole, A. A., Koch, A., Gallagher III, J. S. & Da Costa, G., 2009, Globular Clusters: Guides to Galaxies. Richtler, T. & Larsen, S. (eds.). Springer, p. 157-160 4 p. (Eso Astrophysics Symposia).

    Research output: Contribution in Book/Report/Proceedings - With ISBN/ISSNChapter

  68. Published

    Young star clusters in the SMC

    Glatt, K., Grebel, E. K. & Koch, A., 2009, Globular Clusters: Guides to Galaxies. Richtler, T. & Larsen, S. (eds.). Springer, p. 119-120 2 p. (Eso Astrophysics Symposia).

    Research output: Contribution in Book/Report/Proceedings - With ISBN/ISSNChapter

  69. Published

    A spectroscopic confirmation of the Bootes II dwarf spheroidal

    Koch, A., Wilkinson, M. I., Kleyna, J., Irwin, M., Zucker, D. B., Belokurov, V., Gilmore, G., Fellhauer, M. & Wyn Evans, N., 1/01/2009, In: The Astrophysical Journal. 690, 1, p. 453-462 10 p.

    Research output: Contribution to journalJournal articlepeer-review

  70. Published

    On the reported death of the MACHO era

    Quinn, D. P., Wilkinson, M. I., Irwin, M. J., Marshall, J., Koch, A. & Belokurov, V., 29/04/2009, In: Monthly Notices of the Royal Astronomical Society: Letters. 396, 1, p. L11-L15 5 p.

    Research output: Contribution to journalJournal articlepeer-review

  71. Published

    Complexity in small-scale dwarf spheroidal galaxies

    Koch, A., Adén, D., Grebel, E. K. & Feltzing, S., 08/2009, In: Proceedings of the International Astronomical Union. 5, S265, p. 227-232 6 p.

    Research output: Contribution to journalJournal articlepeer-review

  72. Published

    A constant dark matter halo surface density in galaxies

    Donato, F., Gentile, G., Salucci, P., Martins, C. F., Wilkinson, M. I., Gilmore, G., Grebel, E. K., Koch, A. & Wyse, R., 11/08/2009, In: Monthly Notices of the Royal Astronomical Society. 397, 3, p. 1169-1176 8 p.

    Research output: Contribution to journalJournal articlepeer-review

  73. Published

    Kinematics at the edge of the galactic bulge: evidence for cylindrical rotation

    Howard, C. D., Rich, R. M., Clarkson, W., Mallery, R., Kormendy, J., Propris, R. D., Robin, A. C., Fux, R., Reitzel, D. B., Zhao, H., Kuijken, K. & Koch, A., 24/08/2009, In: Astrophysical Journal Letters. 702, 2, p. L153-L157 5 p.

    Research output: Contribution to journalJournal articlepeer-review

  74. Published

    A photometric and spectroscopic study of the new dwarf spheroidal galaxy in Hercules: metallicity, velocities, and a clean list of RGB members

    Adén, D., Feltzing, S., Koch, A., Wilkinson, M. I., Grebel, E. K., Lundström, I., Gilmore, G. F., Zucker, D. B., Belokurov, V., Evans, N. W. & Faria, D., 27/08/2009, In: Astronomy and Astrophysics. 506, 3, p. 1147-1168 22 p.

    Research output: Contribution to journalJournal articlepeer-review

  75. Published

    Structural parameters of seven small magellanic cloud intermediate-age and old star clusters

    Glatt, K., Grebel, E. K., Gallagher III, J. S., Nota, A., Sabbi, E., Sirianni, M., Clementini, G., Costa, G. D., Tosi, M., Harbeck, D., Koch, A. & Kayser, A., 1/10/2009, In: The Astronomical Journal. 138, 5, p. 1403-1416 14 p.

    Research output: Contribution to journalJournal articlepeer-review

  76. Published

    All quiet in the outer halo: chemical abundances in the globular cluster Pal 3

    Koch, A., Côté, P. & McWilliam, A., 11/2009, In: Astronomy and Astrophysics. 506, 2, p. 729-743 15 p.

    Research output: Contribution to journalJournal articlepeer-review

  77. Published

    A new low mass for the Hercules dSph: the end of a common mass scale for the dwarfs?

    Adén, D., Wilkinson, M. I., Read, J. I., Feltzing, S., Koch, A., Gilmore, G. F., Grebel, E. K. & Lundström, I., 4/11/2009, In: Astrophysical Journal Letters. 706, 1, p. L150-L154 5 p.

    Research output: Contribution to journalJournal articlepeer-review

  78. Published

    Evolution of dwarf galaxies in the Centaurus A group

    Crnojevic, D., Grebel, E. K. & Koch, A., 4/11/2009, In: Astronomical Notes / Astronomische Nachrichten. 330, 9-10, p. 1001-1003 3 p.

    Research output: Contribution to journalJournal articlepeer-review

  79. Published

    Kinematic subpopulations in dwarf spheroidal galaxies

    Ural, U., Wilkinson, M. I., Koch, A., Gilmore, G., Beers, T. C., Belokurov, V., Wyn Evans, N., Grebel, E. K., Vidrih, S. & Zucker, D. B., 18/12/2009, In: Monthly Notices of the Royal Astronomical Society. 402, 2, p. 1357-1368 12 p.

    Research output: Contribution to journalJournal articlepeer-review

  80. 2010
  81. Published

    Dark matter constraints from wide halo binary stars

    Quinn, D. P., Wilkinson, M. I., Irwin, M. J., Marshall, J., Koch, A. & Belokurov, V., 2010, In: ASP Conference Series. 435, p. 453-456 4 p.

    Research output: Contribution to journalJournal article

  82. Published

    Dwarf spheroidals in the M81 galaxy group

    Lianou, S., Grebel, E. K. & Koch, A., 2010, In: ASP Conference Series. 424, p. 242-243 2 p.

    Research output: Contribution to journalJournal article

  83. Published

    Striking agreement between galactic bulge kinematics from the BRAVA survey, and an N-body bar

    Rich, R. M., Shen, J., Howard, C. D., Propris, R. D., Koch, A. & Reitzel, D. B., 2010, In: Bulletin of the American Astronomical Society. 215, 321.06.

    Research output: Contribution to journalMeeting abstract

  84. Published

    A statistical analysis of the late-type stellar content in the Andromeda Halo

    Koch, A. & Rich, R. M., 21/04/2010, In: The Astronomical Journal. 139, 6, p. 2279-2288 10 p.

    Research output: Contribution to journalJournal articlepeer-review

  85. Published

    A differential chemical abundance scale for the globular cluster M5

    Koch, A. & McWilliam, A., 22/04/2010, In: The Astronomical Journal. 139, 6, p. 2289-2299 11 p.

    Research output: Contribution to journalJournal articlepeer-review

  86. Published

    A close look at the Centaurus A group of galaxies: I. Metallicity distribution functions and population gradients in early-type dwarfs

    Crnojevic, D., Grebel, E. K. & Koch, A., 07/2010, In: Astronomy and Astrophysics. 516, 17 p., A85.

    Research output: Contribution to journalJournal articlepeer-review

  87. Published

    Ages and luminosities of young SMC/LMC star clusters and the recent star formation history of the Clouds

    Glatt, K., Grebel, E. K. & Koch, A., 07/2010, In: Astronomy and Astrophysics. 517, 15 p., A50.

    Research output: Contribution to journalJournal articlepeer-review

  88. Published

    Chemical abundances for the outer halo cluster Pal 4 from co-added high-resolution spectroscopy

    Koch, A. & Côté, P., 07/2010, In: Astronomy and Astrophysics. 517, 15 p., A59.

    Research output: Contribution to journalJournal articlepeer-review

  89. Published

    Dwarf spheroidals in the M81 Group: metallicity distribution functions and population gradients

    Lianou, S., Grebel, E. K. & Koch, A., 19/10/2010, In: Astronomy and Astrophysics. 521, 15 p., A43.

    Research output: Contribution to journalJournal articlepeer-review

  90. 2011
  91. Published

    Dwarf galaxies beyond Our doorstep: the Centaurus Group

    Crnojevic, D., Grebel, E. K., Cole, A. A., Koch, A., Rejkuba, M., Costa, G. D. & Jerjen, H., 2011, In: EAS Publications Series. 48, p. 51-57 7 p.

    Research output: Contribution to journalJournal article

  92. Published

    Hermes and the Sagittarius dwarf: a low metallicity goldmine?

    Hyde, E. A., Zucker, D. B., Irwin, M., Penarrubia, J. & Koch, A., 2011. 325 p.

    Research output: Contribution to conference - Without ISBN/ISSN Conference paper

  93. Published

    How unique is the Local Group? A comparison to the nearby Centaurus A group

    Crnojevic, D., Grebel, E. K., Ferguson, A. M. N., Cole, A. A., Koch, A., Rejkuba, M., Da Costa, G. & Jerjen, H., 2011.

    Research output: Contribution to conference - Without ISBN/ISSN Conference paper

  94. Published

    M 81 group dSphs: metallicity distribution functions and gradients

    Lianou, S., Grebel, E. K. & Koch, A., 2011, In: EAS Publications Series. 48, p. 91-92 2 p.

    Research output: Contribution to journalJournal article

  95. Published

    The Bulge Radial Velocity Assay: new observations and results

    Kunder, A., Propris, R. D., Rich, R. M. & Koch, A., 2011, In: Bulletin of the American Astronomical Society. 217, 241.12.

    Research output: Contribution to journalMeeting abstract

  96. Published

    Was the progenitor of the Sagittarius Stream a disc galaxy? Recent results & observations

    Hyde, E. A., Zucker, D. B., Peñarrubia, J., Irwin, M., Lane, R., Lewis, G. F., Gilmore, G. & Koch, A., 2011, In: Bulletin of the American Astronomical Society. 217, 152.28.

    Research output: Contribution to journalMeeting abstract

  97. Published

    Separating the conjoined red clump in the Galactic bulge: kinematics and abundances

    Propris, R. D., Rich, R. M., Kunder, A., Johnson, C. I., Koch, A., Brough, S., Conselice, C. J., Gunawardhana, M., Palamara, D., Pimbblet, K. & Wijesinghe, D., 25/04/2011, In: Astrophysical Journal Letters. 732, 2, 5 p., L36.

    Research output: Contribution to journalJournal articlepeer-review

  98. Published

    The kinematic identification of a thick stellar disc in M31

    Collins, M. L. M., Chapman, S. C., Ibata, R. A., Irwin, M. J., Rich, R. M., Ferguson, A. M. N., Lewis, G. F., Tanvir, N. & Koch, A., 21/05/2011, In: Monthly Notices of the Royal Astronomical Society. 413, 3, p. 1548-1568 21 p.

    Research output: Contribution to journalJournal articlepeer-review

  99. Published

    Spectroscopic versus photometric metallicities: Milky Way dwarf spheroidal companions as a test case

    Lianou, S., Grebel, E. K. & Koch, A., 5/07/2011, In: Astronomy and Astrophysics. 531, 17 p., A152.

    Research output: Contribution to journalJournal articlepeer-review

  100. Published

    A differential chemical element analysis of the metal-poor globular cluster NGC 6397

    Koch, A. & McWilliam, A., 19/07/2011, In: The Astronomical Journal. 142, 2, 13 p., 63.

    Research output: Contribution to journalJournal articlepeer-review

  101. Published

    Discovery of a super-Li-rich turnoff star in the metal-poor globular cluster NGC 6397

    Koch, A., Lind, K. & Rich, R. M., 23/08/2011, In: Astrophysical Journal Letters. 738, 2, 5 p., L29.

    Research output: Contribution to journalJournal articlepeer-review

  102. Published

    Sulphur in the metal poor globular cluster NGC 6397

    Koch, A. & Caffau, E., 10/2011, In: Astronomy and Astrophysics. 534, 6 p., A52.

    Research output: Contribution to journalJournal articlepeer-review

  103. Published

    A first measurement of the proper motion of the Leo II dwarf spheroidal galaxy

    Lépine, S., Koch, A., Rich, R. M. & Kuijken, K., 24/10/2011, In: The Astrophysical Journal. 741, 2, 10 p., 100.

    Research output: Contribution to journalJournal articlepeer-review

  104. 2012
  105. Published

    4MOST: 4-metre Multi-Object Spetroscopic Telescope

    4MOST Consortium, 2012, In: Proceedings of SPIE. 8446

    Research output: Contribution to journalJournal article

  106. Published

    4MOST: 4-meter Multi-Object Spectroscopic Telescope

    4MOST Consortium, 2012, In: EPJ Web of Conferences. 19, 3 p., 09004.

    Research output: Contribution to journalJournal article

  107. Published

    A super-Li rich turnoff star in NGC 6397: the puzzle persists

    Koch, A., Lind, K., Thompson, I. B. & Rich, R. M., 2012, In: Memorie della Societa Astronomica Italiana. 22, p. 79

    Research output: Contribution to journalMeeting abstract

  108. Published

    Precise abundance analysis of the outer halo globular cluster M 75

    Kacharov, N. & Koch, A., 2012, In: AIP Conference Proceedings. 1480, p. 385

    Research output: Contribution to journalJournal article

  109. Published

    Small-scale hero: massive-star enrichment in the Hercules dwarf spheroidal

    Koch, A., Matteucci, F. & Feltzing, S., 2012, In: AIP Conference Proceedings. 1480, p. 190

    Research output: Contribution to journalJournal article

  110. Published

    The Bulge Radial Velocity Assay (BRAVA): final results, a new high velocity star, and public data release

    Rich, R. M., Kunder, A., Propris, R. D. & Koch, A., 2012, In: Bulletin of the American Astronomical Society. 219, 252.02.

    Research output: Contribution to journalMeeting abstract

  111. Published

    The chemical composition of RGB stars in off-axis bulge field

    Johnson, C. I., Rich, R. M., Kunder, A., Propris, R. D., Kobayashi, C. & Koch, A., 2012, In: Bulletin of the American Astronomical Society. 219, 152.11.

    Research output: Contribution to journalMeeting abstract

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