USING THE BULLET CLUSTER AS A GRAVITATIONAL TELESCOPE TO STUDY z {approx}> 7 LYMAN BREAK GALAXIES

Journal Article · Wed Feb 01 00:00:00 EST 2012 · Astrophysical Journal

DOI:https://doi.org/10.1088/0004-637X/745/2/155· OSTI ID:22011886

Hall, Nicholas; Bradac, Marusa ^[1]; Gonzalez, Anthony H ^[2]; Treu, Tommaso ^[3]; Clowe, Douglas ^[4]; Jones, Christine ^[5]; Stiavelli, Massimo ^[6]; Zaritsky, Dennis ^[7]; Cuby, Jean-Gabriel; Clement, Benjamin ^[8]

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1. Department of Physics, University of California, One Shields Avenue, Davis, CA 95616 (United States)
2. Department of Astronomy, University of Florida, 211 Bryant Space Science Center, Gainesville, FL 32611 (United States)
3. Department of Physics, University of California, Santa Barbara, CA 93106 (United States)
4. Department of Physics and Astronomy, Ohio University, Clippinger Labs 251B, Athens, OH 45701 (United States)
5. Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138 (United States)
6. Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD 21218 (United States)
7. Steward Observatory, University of Arizona, 933 N. Cherry Ave., Tucson, AZ 85721 (United States)
8. Laboratoire d'Astrophysique de Marseille, OAMP, Universite Aix-Marseille and CNRS, 38 rue Frederic Joliot Curie, F-13388 Marseille cedex 13 (France)

We use imaging obtained with the Hubble Space Telescope Wide Field Camera 3 to search for z{sub 850} dropouts at z {approx} 7 and J{sub 110} dropouts at z {approx} 9 lensed by the Bullet Cluster. In total we find 10 z{sub 850} dropouts in our 8.27 arcmin{sup 2} field. Using magnification maps from a combined weak- and strong-lensing mass reconstruction of the Bullet Cluster and correcting for estimated completeness levels, we calculate the surface density and luminosity function of our z{sub 850} dropouts as a function of intrinsic (accounting for magnification) magnitude. We find results consistent with published blank field surveys, despite using much shallower data, and demonstrate the effectiveness of cluster surveys in the search for z {approx} 7 galaxies.

• OSTI ID: 22011886
• Journal Information: Astrophysical Journal, Vol. 745, Issue 2; Other Information: Country of input: International Atomic Energy Agency (IAEA); ISSN 0004-637X
• Country of Publication: United States
• Language: English

Related Subjects

79 ASTROPHYSICS
COSMOLOGY AND ASTRONOMY
CAMERAS
GALAXIES
LUMINOSITY
RED SHIFT
TELESCOPES