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

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

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

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

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

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

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

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

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

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

Selecting Sagittarius: a study of Sagittarius dwarf members throughout the Milky Way Galactic halo

Hyde, E. A., Zucker, D. B., Keller, S., Siebert, A., Ibata, R. A., Penarrubia, J., Martell, S., Lewis, G., Irwin, M. & Koch, A., 2013, In: Bulletin of the American Astronomical Society. 221, 425.03.

Research output: Contribution to Journal/Magazine › Meeting abstract

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

Population gradients and photometric metallicities in early- and transition-type dwarf galaxies: clues from the Sculptor group

Lianou, S., Grebel, E. K., Da Costa, G. S., Rejkuba, M., Jerjen, H. & Koch, A., 17/01/2013, In: Astronomy and Astrophysics. 550, 21 p., A7.

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

Metallicity distribution functions, radial velocities, and alpha element abundances in three off-axis bulge fields

Johnson, C. I., Rich, R. M., Kobayashi, C., Kunder, A., Pilachowski, C. A., Koch, A. & Propris, R. D., 27/02/2013, In: The Astrophysical Journal. 765, 2, 47 p., 157.

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

Velocity and abundance precisions for future high-resolution spectroscopic surveys: a study for 4MOST

Caffau, E., Koch, A., Sbordone, L., Sartoretti, P., Hansen, C. J., Royer, F., Leclerc, N., Bonifacio, P., Christlieb, N., Ludwig, H. G., Grebel, E. K., Jong, R. S. D., Chiappini, C., Walcher, J., Mignot, S., Feltzing, S., Cohen, M., Minchev, I., Helmi, A., Piffl, T., & 2 othersDepagne, E. & Schnurr, O., 1/03/2013, In: Astronomical Notes / Astronomische Nachrichten. 334, 3, p. 197-216 20 p.

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

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

Neutron-capture element deficiency of the Hercules dwarf spheroidal galaxy

Koch, A., Feltzing, S., Adén, D. & Matteucci, F., 06/2013, In: Astronomy and Astrophysics. 554, 10 p., A5.

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

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

TOPoS: I. Survey design and analysis of the first sample

Caffau, E., Bonifacio, P., Sbordone, L., Francois, P., Monaco, L., Spite, M., Plez, B., Cayrel, R., Christlieb, N., Clark, P., Glover, S., Klessen, R., Koch, A., Ludwig, H. -G., Spite, F., Steffen, M. & Zaggia, S., 6/12/2013, In: Astronomy and Astrophysics. 560, 9 p., A71.

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

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

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

Searching for stellar sub-structure in the Galactic bulge

Koch, A., 2014, In: Bulletin of the American Astronomical Society. 223, 442.04.

Research output: Contribution to Journal/Magazine › Meeting abstract

The Blanco DECam Bulge Survey (BDBS): status and early results

Koch, A., 2014, In: Bulletin of the American Astronomical Society. 223, 346.19.

Research output: Contribution to Journal/Magazine › Meeting abstract

The masses of local group dwarf spheroidal galaxies: the death of the universal mass profile

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., 6/02/2014, In: The Astrophysical Journal. 783, 1, 14 p., 7.

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