Andreas Koch - Publications & Outputs - Research Portal

Dr Andreas Koch

Formerly at Lancaster University

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2013
Published
The local universe at 30 mag/sq. arcsec: extended stellar halos around near-by galaxies
Schaul, D., Rich, R. M., Black, C. S., Reitzel, D. B., Collins, M. L. M., Koch, A., Longstaff, F. A. & Benson, A., 2013, In: Bulletin of the American Astronomical Society. 221, 146.01.
Research output: Contribution to Journal/Magazine › Meeting abstract
2012
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
Published
Threshing in action: the tidal disruption of a dwarf galaxy by the Hydra I cluster
Koch, A., Burkert, A., Rich, R. M., Collins, M. L. M., Black, C. S., Hilker, M. & Benson, A. J., 25/07/2012, In: Astrophysical Journal Letters. 755, 1, 7 p., L13.
Research output: Contribution to Journal/Magazine › Journal article › peer-review
Published
Dwarf spheroidal galaxy kinematics and spiral galaxy scaling laws
Salucci, P., Wilkinson, M. I., Walker, M., Gilmore, G., Grebel, E. K., Koch, A., Martins, C. F. & Wyse, F. G., 1/03/2012, In: Monthly Notices of the Royal Astronomical Society. 420, 3, p. 2034-2041 8 p.
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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
Published
The Bulge Radial Velocity Assay (BRAVA): II. Complete sample and data release
Kunder, A., Koch, A., Rich, R. M., Propris, R. D., Howard, C. D., Stubbs, S. A., Johnson, C. I., Shen, J., Wang, Y., Robin, A. C., Kormendy, J., Soto, M., Frinchaboy, P., Reitzel, D. B., Zhao, H. & Origlia, L., 6/02/2012, In: The Astronomical Journal. 143, 3, 14 p., 57.
Research output: Contribution to Journal/Magazine › Journal article › peer-review
Published
4MOST: 4-metre Multi-Object Spetroscopic Telescope
4MOST Consortium, 2012, In: Proceedings of SPIE. 8446
Research output: Contribution to Journal/Magazine › Journal article
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
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
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 Journal/Magazine › Journal article
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 Journal/Magazine › Journal article
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 Journal/Magazine › Meeting abstract
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 Journal/Magazine › Meeting abstract
Published
The Gaia-ESO Public Spectroscopic Survey
Koch, A., 2012, In: The Messenger. 147, p. 25-31 7 p.
Research output: Contribution to Journal/Magazine › Journal article
Published
The puzzling assembly of the Milky Way halo: contributions from dwarf Spheroidals and globular clusters
Koch, A., Lépine, S. & Çalışkan, Ş., 2012, In: EPJ Web of Conferences. 19, 7 p., 03002.
Research output: Contribution to Journal/Magazine › Journal article
2011
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
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 Journal/Magazine › Journal article › peer-review
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 Journal/Magazine › Journal article › peer-review
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
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 Journal/Magazine › Journal article › peer-review
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 Journal/Magazine › Journal article › peer-review
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 Journal/Magazine › Journal article › peer-review
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 Journal/Magazine › Journal article
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
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
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
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
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
2010
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
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
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
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
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
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
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
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
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
2009
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
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
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
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
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
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
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
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
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
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
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
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
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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Dr Andreas Koch

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