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Research

Dr Andreas Koch

Formerly at Lancaster University

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  1. 2006
  2. 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 Journal/Magazine › Journal article › peer-review

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

  4. 2007
  5. 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

  6. 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

  7. 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

  8. 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 Journal/Magazine › Meeting abstract

  9. 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 Journal/Magazine › Meeting abstract

  10. 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

  11. 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 Journal/Magazine › Journal article

  12. 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

  13. 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

  14. 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 Journal/Magazine › Meeting abstract

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

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

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

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

  19. 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

  20. 2008
  21. 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

  22. 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 Journal/Magazine › Meeting abstract

  23. 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 Journal/Magazine › Meeting abstract

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

  25. 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

  26. 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

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

  28. 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

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