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Research

Dr Andreas Koch

Formerly at Lancaster University

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  1. 2011
  2. 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 Journal/Magazine › Journal article

  3. 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 Journal/Magazine › Meeting abstract

  4. 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 Journal/Magazine › Meeting abstract

  5. 2010
  6. 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 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

    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

  9. 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

  10. 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

  11. 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

  12. 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 Journal/Magazine › Journal article

  13. 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 Journal/Magazine › Journal article

  14. 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 Journal/Magazine › Meeting abstract

  15. 2009
  16. 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 Journal/Magazine › Journal article › peer-review

  17. 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

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

  19. 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

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

  21. 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

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

  23. 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

  24. 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

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

  26. 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

  27. 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

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

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