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Observational Astrophysics

  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. 2004
  7. 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

  8. 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

  9. 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

  10. 2005
  11. 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

  12. 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

  13. 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

  14. 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

  15. 2006
  16. 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

  17. 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

  18. Published

    The nature of the optically faint sub-millijansky radio sources: The VLT/VIMOS view

    Sobral, D. & Afonso, J., 1/01/2006, 2005 Past Meets Present in Astronomy and Astrophysics - Proceedings of the 15th Portuguese National Meeting, ENAA 2005. World Scientific Publishing Co. Pte Ltd, p. 75-76 2 p.

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

  19. 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

  20. 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

  21. 2007
  22. 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

  23. 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

  24. Published

    Spitzer identifications and classifications of submillimeter galaxies in giant, high-redshift, Lyα-emission-line nebulae

    Geach, J. E., Smail, I., Chapman, S. C., Alexander, D. M., Blain, A. W., Stott, J. P. & Ivison, R. J., 5/01/2007, In: The Astrophysical Journal. 655, 1 II

    Research output: Contribution to journalJournal articlepeer-review

  25. 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

  26. Published

    An increase in the faint red galaxy population in massive clusters since z ∼ 0.5

    Stott, J. P., Smail, I., Edge, A. C., Ebeling, H., Smith, G. P., Kneib, J. P. & Pimbblet, K. A., 20/05/2007, In: The Astrophysical Journal. 661, 1 I, p. 95-101 7 p.

    Research output: Contribution to journalJournal articlepeer-review

  27. 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

  28. 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

  29. Published

    The discovery of a massive supercluster at z=0.9 in the UKIDSS Deep eXtragalactic Survey

    Swinbank, A. M., Edge, A. C., Smail, I., Stott, J. P., Bremer, M., Sato, Y., van Breukelen, C., Jarvis, M., Waddington, I., Clewley, L., Bergeron, J., Cotter, G., Dye, S., Geach, J. E., Gonzalez-Solares, E., Hirst, P., Ivison, R. J., Rawlings, S., Simpson, C., Smith, G. P. & 2 others, Verma, A. & Yamada, T., 21/08/2007, In: Monthly Notices of the Royal Astronomical Society. 379, 4, p. 1343-1351 9 p.

    Research output: Contribution to journalJournal articlepeer-review

  30. 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

  31. 2008
  32. 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

  33. Published

    Near-infrared evolution of brightest cluster galaxies in the most X-ray luminous clusters since z = 1

    Stott, J. P., Edge, A. C., Smith, G. P., Swinbank, A. M. & Ebeling, H., 11/03/2008, In: Monthly Notices of the Royal Astronomical Society. 384, 4, p. 1502-1510 9 p.

    Research output: Contribution to journalJournal articlepeer-review

  34. 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

  35. Published

    The evolution of galaxies in massive clusters

    Stott, J. P., 1/04/2008, In: The Observatory . 128, p. 148-148 1 p.

    Research output: Contribution to journalJournal article

  36. 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

  37. 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

  38. 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

  39. 2009
  40. Published

    Early assembly of the most massive galaxies

    Collins, C. A., Stott, J. P., Hilton, M., Kay, S. T., Stanford, S. A., Davidson, M., Hosmer, M., Hoyle, B., Liddle, A., Lloyd-Davies, E., Mann, R. G., Mehrtens, N., Miller, C. J., Nichol, R. C., Romer, A. K., Sahlén, M., Viana, P. T. P. & West, M. J., 2/04/2009, In: Nature. 458, 7238, p. 603-606 4 p.

    Research output: Contribution to journalJournal articlepeer-review

  41. Published

    The evolution of the red sequence slope in massive galaxy clusters

    Stott, J. P., Pimbblet, K. A., Edge, A. C., Smith, G. P. & Wardlow, J. L., 21/04/2009, In: Monthly Notices of the Royal Astronomical Society. 394, 4, p. 2098-2108 11 p.

    Research output: Contribution to journalJournal articlepeer-review

  42. 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

  43. Published

    The XMM cluster survey: Galaxy morphologies and the color-magnitude relation in XMMXCS J2215.9 - 1738 at z = 1.46

    Hilton, M., Stanford, S. A., Stott, J. P., Collins, C. A., Hoyle, B., Davidson, M., Hosmer, M., Kay, S. T., Liddle, A. R., Lloyd-Davies, E., Mann, R. G., Mehrtens, N., Miller, C. J., Nichol, R. C., Romer, A. K., Sabirli, K., Sahlén, M., Viana, P. T. P., West, M. J., Barbary, K. & 5 others, Dawson, K. S., Meyers, J., Perlmutter, S., Rubin, D. & Suzuki, N., 1/05/2009, In: The Astrophysical Journal. 697, 1, p. 436-451 16 p.

    Research output: Contribution to journalJournal articlepeer-review

  44. 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

  45. Published

    Optical and near-infrared colours as a discriminant of the age and metallicity of stellar populations

    Carter, D., Smith, D. J. B., Percival, S. M., Baldry, I. K., Collins, C. A., James, P. A., Salaris, M., Simpson, C., Stott, J. P. & Mobasher, B., 1/08/2009, In: Monthly Notices of the Royal Astronomical Society. 397, 2, p. 695-708 14 p.

    Research output: Contribution to journalJournal articlepeer-review

  46. 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

  47. 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

  48. Published

    Bright Lyα emitters at z ~ 9: constraints on the LF from HizELS

    Sobral, D., Best, P. N., Geach, J. E., Smail, I., Kurk, J., Cirasuolo, M., Casali, M., Ivison, R. J., Coppin, K. & Dalton, G. B., 09/2009, In: Monthly Notices of the Royal Astronomical Society: Letters. 398, 1, p. L68-L72 5 p.

    Research output: Contribution to journalJournal articlepeer-review

  49. Published

    HiZELS: a high-redshift survey of Hα emitters - II. the nature of star-forming galaxies at z = 0.84

    Sobral, D., Best, P. N., Geach, J. E., Smail, I., Kurk, J., Cirasuolo, M., Casali, M., Ivison, R. J., Coppin, K. & Dalton, G. B., 09/2009, In: Monthly Notices of the Royal Astronomical Society. 398, 1, p. 75-90 16 p.

    Research output: Contribution to journalJournal articlepeer-review

  50. 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

  51. 2010
  52. Published

    Obscured star formation at z = 0.84 with HiZELS: the relationship between star formation rate and Hα or ultraviolet dust extinction

    Garn, T., Sobral, D., Best, P. N., Geach, J. E., Smail, I., Cirasuolo, M., Dalton, G. B., Dunlop, J. S., McLure, R. J. & Farrah, D., 03/2010, In: Monthly Notices of the Royal Astronomical Society. 402, 3, p. 2017-2030 14 p.

    Research output: Contribution to journalJournal articlepeer-review

  53. Published

    Searches for Gravitational Waves from Known Pulsars with Science Run 5 LIGO Data

    LIGO Scientific Collaboration and Virgo Collaboration, 24/03/2010, In: The Astrophysical Journal. 713, 1, p. 671-685 15 p.

    Research output: Contribution to journalJournal articlepeer-review

  54. Published

    The ratio of luminous to faint red-sequence galaxies in X-ray and optically selected low-redshift clusters

    Capozzi, D., Collins, C. A. & Stott, J. P., 11/04/2010, In: Monthly Notices of the Royal Astronomical Society. 403, 3, p. 1274-1282 9 p.

    Research output: Contribution to journalJournal articlepeer-review

  55. Published

    The clustering and evolution of Hα emitters at z ∼ 1 from HiZELS

    Sobral, D., Best, P. N., Geach, J. E., Smail, I., Cirasuolo, M., Garn, T., Dalton, G. B. & Kurk, J., 05/2010, In: Monthly Notices of the Royal Astronomical Society. 404, 3, p. 1551-1563 13 p.

    Research output: Contribution to journalJournal articlepeer-review

  56. Published

    The XMM cluster survey: Active galactic nuclei and starburst galaxies in XMMXCS J2215.9-1738 at z = 1.46

    Hilton, M., Lloyd-Davies, E., Stanford, S. A., Stott, J. P., Collins, C. A., Romer, A. K., Hosmer, M., Hoyle, B., Kay, S. T., Liddle, A. R., Mehrtens, N., Miller, C. J., Sahlén, M. & Viana, P. T. P., 28/06/2010, In: The Astrophysical Journal. 718, 1, p. 133-147 15 p.

    Research output: Contribution to journalJournal articlepeer-review

  57. 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

  58. Published

    The XMM cluster survey: The build-up of stellar mass in brightest cluster galaxies at high redshift

    Stott, J. P., Collins, C. A., Sahlén, M., Hilton, M., Lloyd-Davies, E., Capozzi, D., Hosmer, M., Liddle, A. R., Mehrtens, N., Miller, C. J., Romer, A. K., Stanford, S. A., Viana, P. T. P., Davidson, M., Hoyle, B., Kay, S. T. & Nichol, R. C., 20/07/2010, In: The Astrophysical Journal. 718, 1, p. 23-30 8 p.

    Research output: Contribution to journalJournal articlepeer-review

  59. Published

    Revealing X-ray luminous AGN in apparent starburst galaxies

    Jackson, F. E., Roberts, T. P., Gelbord, J. M., Ward, M. J., Wardlow, J. L., Alexander, D. M. & Watson, M. G., 26/08/2010, X-ray Astronomy-2009: Present Status, Multi-Wavelength Approach and Future Perspectives - Proceedings of the International Conference. p. 449-450 2 p. (AIP Conference Proceedings; vol. 1248).

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

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