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Dr Andreas Koch

Formerly at Lancaster University

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  1. Published

    4MOST: 4-metre Multi-Object Spectroscopic Telescope

    4MOST Consortium, 24/07/2014, In: Proceedings of SPIE. 9147

    Research output: Contribution to Journal/Magazine › Journal article

  2. Published

    4MOST: 4-metre Multi-Object Spetroscopic Telescope

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

    Research output: Contribution to Journal/Magazine › Journal article

  3. Published

    4MOST: 4-meter Multi-Object Spectroscopic Telescope

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

    Research output: Contribution to Journal/Magazine › Journal article

  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 Journal/Magazine › Meeting abstract

  5. 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 Journal/Magazine › Journal article › peer-review

  6. Published

    A chemical confirmation of the faint Boötes II dwarf Spheroidal Galaxy

    Koch, A. & Rich, R. M., 25/09/2014, In: The Astrophysical Journal. 794, 1, 9 p., 89.

    Research output: Contribution to Journal/Magazine › Journal article › peer-review

  7. 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 Journal/Magazine › Journal article › peer-review

  8. Published

    A comprehensive chemical abundance study of the outer halo globular cluster M 75

    Kacharov, N., Koch, A. & McWilliam, A., 10/06/2013, In: Astronomy and Astrophysics. 554, 15 p., A81.

    Research output: Contribution to Journal/Magazine › Journal article › peer-review

  9. 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 Journal/Magazine › Journal article › peer-review

  10. Published

    A detection of gas associated with the M31 Stellar Stream

    Koch, A., Danforth, C. W., Rich, R. M., Ibata, R. A. & Keeney, B. A., 9/07/2015, In: The Astrophysical Journal. 807, 2, 9 p., 153.

    Research output: Contribution to Journal/Magazine › Journal article › peer-review

  11. 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 Journal/Magazine › Journal article › peer-review

  12. 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 Journal/Magazine › Journal article › peer-review

  13. 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 Journal/Magazine › Journal article › peer-review

  14. Published

    A high-velocity bulge RR Lyrae variable on a halo-like orbit

    Kunder, A., Rich, R. M., Hawkins, K., Poleski, R., Storm, J., Johnson, C. I., Shen, J., Li, Z., Cordero, M. J., Nataf, D. M., Bono, G., Walker, A. R., Koch, A., Propris, R. D., Udalski, A., Szymanski, M. K., Soszynski, I., Pietrzynski, G., Ulaczyk, K., Wyrzykowski, L., & 4 othersPietrukowicz, P., Skowron, J., Kozłowski, S. & Mróz, P., 16/07/2015, In: Astrophysical Journal Letters. 808, 1, 6 p., L12.

    Research output: Contribution to Journal/Magazine › Journal article › peer-review

  15. Published

    A kinematic study of the Andromeda dwarf spheroidal system

    Collins, M. L. M., Chapman, S. C., Rich, R. M., Ibata, R. A., Martin, N. F., Irwin, M. J., Bate, N. F., Lewis, G. F., Peñarrubia, J., Arimoto, N., Casey, C. M., Ferguson, A. M. N., Koch, A., McConnachie, A. W. & Tanvir, N., 26/04/2013, In: The Astrophysical Journal. 768, 2, 36 p., 172.

    Research output: Contribution to Journal/Magazine › Journal article › peer-review

  16. 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 Journal/Magazine › Journal article › peer-review

  17. Published

    A new algorithm for optimizing the wavelength coverage for spectroscopic studies: Spectral Wavelength Optimization Code (swoc)

    Ruchti, G. R., Feltzing, S., Lind, K., Caffau, E., Korn, A. J., Schnurr, O., Hansen, C. J., Koch, A., Sbordone, L. & De jong, R. S., 11/09/2016, In: Monthly Notices of the Royal Astronomical Society. 461, 2, p. 2174-2191 17 p.

    Research output: Contribution to Journal/Magazine › Journal article › peer-review

  18. 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 Journal/Magazine › Journal article › peer-review

  19. Published

    A new, smaller size for the low-surface brightness galaxy VCC 1661 in the Virgo Cluster

    Black, C. S., Koch, A., Rich, R. M., Longstaff, F. A., Collins, M. L. M., Lisker, T. & Janz, J., 2013, In: Bulletin of the American Astronomical Society. 221, 436.01.

    Research output: Contribution to Journal/Magazine › Meeting abstract

  20. 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 Journal/Magazine › Journal article › peer-review

  21. 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 Journal/Magazine › Meeting abstract

  22. Published

    A spectroscopic binary in the Hercules dwarf spheroidal galaxy

    Koch, A., Hansen, T., Feltzing, S. & Wilkinson, M. I., 13/12/2013, In: The Astrophysical Journal. 780, 1, 6 p., 91.

    Research output: Contribution to Journal/Magazine › Journal article › peer-review

  23. 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 Journal/Magazine › Journal article › peer-review

  24. 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/ISSN › Conference contribution/Paper › peer-review

  25. 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 Journal/Magazine › Journal article › peer-review

  26. Published

    A study of rotating globular clusters: the case of the old, metal-poor globular cluster NGC 4372

    Kacharov, N., Bianchini, P., Koch, A., Frank, M. J., Martin, N. F., van de Ven, G., Puzia, T. H., McDonald, I., Johnson, C. I. & Zijlstra, A. A., 11/07/2014, In: Astronomy and Astrophysics. 567, 12 p., A69.

    Research output: Contribution to Journal/Magazine › Journal article › peer-review

  27. 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 Journal/Magazine › Meeting abstract

  28. Published

    A tidally distorted dwarf galaxy near NGC 4449

    Rich, R. M., Collins, M. L. M., Black, C. M., Longstaff, F. A., Koch, A., Benson, A. J. & Reitzel, D. B., 9/02/2012, In: Nature. 482, 7384, p. 192-194 3 p.

    Research output: Contribution to Journal/Magazine › Journal article › peer-review

  29. 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 Journal/Magazine › Journal article › peer-review

  30. 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 Journal/Magazine › Journal article › peer-review

  31. 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 Journal/Magazine › Journal article › peer-review

  32. 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 Journal/Magazine › Meeting abstract

  33. 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 Journal/Magazine › Journal article › peer-review

  34. Published

    An abundance study of the outer halo globular cluster M75

    Kacharov, N. & Koch, A., 2013, In: Memorie della Societa Astronomica Italiana. 84, p. 224

    Research output: Contribution to Journal/Magazine › Meeting abstract

  35. 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 Journal/Magazine › Journal article › peer-review

  36. Published

    An inefficient dwarf: Chemical abundances and the evolution of the Ursa Minor dwarf spheroidal galaxy

    Ural, U., Cescutti, G., Koch, A., Kleyna, J., Feltzing, S. & Wilkinson, M. I., 19/03/2015, In: Monthly Notices of the Royal Astronomical Society. 449, 1, p. 761-770 10 p.

    Research output: Contribution to Journal/Magazine › Journal article › peer-review

  37. Published

    An intermediate-band photometric study of the “Globular Cluster” NGC 2419

    Koch, A., Frank, M. J., Feltzing, S., Adén, D., Kacharov, N. & Wilkinson, M. I., 2013, In: Memorie della Societa Astronomica Italiana. 84, p. 67

    Research output: Contribution to Journal/Magazine › Meeting abstract

  38. 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 Journal/Magazine › Journal article › peer-review

  39. Published

    Another look at the size of the low-surface brightness galaxy VCC 1661 in the Virgo Cluster

    Koch, A., Black, C. S., Rich, R. M., Longstaff, F. A., Collins, M. L. M. & Janz, J., 05/2017, In: Astronomical Notes / Astronomische Nachrichten. 338, 4, p. 503-509 7 p.

    Research output: Contribution to Journal/Magazine › Journal article › peer-review

  40. Published

    Before the bar: kinematic detection of a spheroidal metal-poor bulge component

    Kunder, A., Rich, R. M., Koch, A., Storm, J., Nataf, D. M., Propris, R. D., Walker, A., Bono, G., Johnson, C. I., Shen, J. & Li, Z., 18/04/2016, In: Astrophysical Journal Letters. 821, 2, 6 p., L25.

    Research output: Contribution to Journal/Magazine › Journal article › peer-review

  41. Published

    Blanco DECam Bulge Survey (BDBS): current status and progress

    Koch, A., 2014, In: Bulletin of the American Astronomical Society. 224, 319.01.

    Research output: Contribution to Journal/Magazine › Meeting abstract

  42. 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 Journal/Magazine › Journal article › peer-review

  43. Published

    Chemical abundances in a high-velocity RR Lyrae star near the bulge

    Hansen, C. J., Rich, R. M., Koch, A., Xu, S., Kunder, A. & Ludwig, H-G., 1/06/2016, In: Astronomy and Astrophysics. 590, 9 p., A39.

    Research output: Contribution to Journal/Magazine › Journal article › peer-review

  44. 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 Journal/Magazine › Meeting abstract

  45. 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

  46. Published

    Chemical abundances of metal-poor RR Lyrae stars in the Magellanic Clouds

    Haschke, R., Grebel, E. K., Frebel, A., Duffau, S., Hansen, C. J. & Koch, A., 16/08/2012, In: The Astronomical Journal. 144, 3, 17 p., 88.

    Research output: Contribution to Journal/Magazine › Journal article › peer-review

  47. Published

    Chemical and kinematical evolution in nearby dwarf spheroidal galaxies

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

    Research output: Thesis › Doctoral Thesis

  48. 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/ISSN › Conference contribution/Paper › peer-review

  49. 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 Journal/Magazine › Journal article › peer-review

  50. 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/ISSN › Conference contribution/Paper › peer-review

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