Using the bullet cluster as a gravitational telescope to study z ≳ 7 Lyman break galaxies

Nicholas Hall, Maruša Bradač, Anthony H. Gonzalez, Tommaso Treu, Douglas Clowe, Christine Jones, Massimo Stiavelli, Dennis F Zaritsky, Jean Gabriel Cuby, Benjamin Clément

Research output: Contribution to journalArticle

26 Citations (Scopus)

Abstract

We use imaging obtained with the Hubble Space Telescope Wide Field Camera 3 to search for z 850 dropouts at z ∼ 7 and J 110 dropouts at z ∼ 9 lensed by the Bullet Cluster. In total we find 10 z 850 dropouts in our 8.27 arcmin2 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 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 ∼ 7 galaxies.

Original languageEnglish (US)
Article number155
JournalAstrophysical Journal
Volume745
Issue number2
DOIs
StatePublished - Feb 1 2012

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dropouts
field survey
telescopes
galaxies
magnification
blanks
completeness
Hubble Space Telescope
cameras
luminosity

Keywords

  • galaxies: high-redshift
  • gravitational lensing: strong
  • gravitational lensing: weak

ASJC Scopus subject areas

  • Space and Planetary Science
  • Astronomy and Astrophysics

Cite this

Hall, N., Bradač, M., Gonzalez, A. H., Treu, T., Clowe, D., Jones, C., ... Clément, B. (2012). Using the bullet cluster as a gravitational telescope to study z ≳ 7 Lyman break galaxies. Astrophysical Journal, 745(2), [155]. https://doi.org/10.1088/0004-637X/745/2/155

Using the bullet cluster as a gravitational telescope to study z ≳ 7 Lyman break galaxies. / Hall, Nicholas; Bradač, Maruša; Gonzalez, Anthony H.; Treu, Tommaso; Clowe, Douglas; Jones, Christine; Stiavelli, Massimo; Zaritsky, Dennis F; Cuby, Jean Gabriel; Clément, Benjamin.

In: Astrophysical Journal, Vol. 745, No. 2, 155, 01.02.2012.

Research output: Contribution to journalArticle

Hall, N, Bradač, M, Gonzalez, AH, Treu, T, Clowe, D, Jones, C, Stiavelli, M, Zaritsky, DF, Cuby, JG & Clément, B 2012, 'Using the bullet cluster as a gravitational telescope to study z ≳ 7 Lyman break galaxies', Astrophysical Journal, vol. 745, no. 2, 155. https://doi.org/10.1088/0004-637X/745/2/155
Hall, Nicholas ; Bradač, Maruša ; Gonzalez, Anthony H. ; Treu, Tommaso ; Clowe, Douglas ; Jones, Christine ; Stiavelli, Massimo ; Zaritsky, Dennis F ; Cuby, Jean Gabriel ; Clément, Benjamin. / Using the bullet cluster as a gravitational telescope to study z ≳ 7 Lyman break galaxies. In: Astrophysical Journal. 2012 ; Vol. 745, No. 2.
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