Journal
ASTROPHYSICAL JOURNAL
Volume 741, Issue 2, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/0004-637X/741/2/101
Keywords
early universe
Categories
Funding
- Agence Nationale de la Recherche [ANR-07-BLAN-0228]
- Agence Nationale de la Recherche (ANR) [ANR-07-BLAN-0228] Funding Source: Agence Nationale de la Recherche (ANR)
- Division Of Astronomical Sciences
- Direct For Mathematical & Physical Scien [0808165] Funding Source: National Science Foundation
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We report a search for z similar to 6.96 Ly alpha emitters (LAEs) using a narrowband filter, centered at 9680 angstrom with the Inamori-Magellan Area Camera and Spectrograph instrument on the Magellan telescope at Las Campanas Observatory. We obtain a sample of six LAE candidates of luminosity similar to 10(42) erg s(-1) in a total area of 465 arcmin(2) corresponding to a comoving volume of similar to 72,000 Mpc(3). From this result, we derive a Ly alpha luminosity function (LF) at z similar to 6.96 and compare our sample with the only z similar to 6.96 LAE spectroscopically confirmed to date. We find no evolution between the z = 5.7 and z similar to 7 Ly alpha LFs if a majority of our candidates are confirmed. Spectroscopic confirmation for this sample will enable more robust conclusions.
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