Search for z ∼ 6.96 Lyα emitters with Magellan/IMACS in the cosmos field

P. Hibon, S. Malhotra, J. Rhoads, C. Willott

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

We report a search for z ∼ 6.96 Lyα emitters (LAEs) using a narrowband filter, centered at 9680 Å 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 ∼10 42 erg s-1 in a total area of 465 arcmin2 corresponding to a comoving volume of ∼72,000 Mpc3. From this result, we derive a Lyα luminosity function (LF) at z ∼6.96 and compare our sample with the only z ∼6.96 LAE spectroscopically confirmed to date. We find no evolution between the z = 5.7 and z ∼7 Lyα LFs if a majority of our candidates are confirmed. Spectroscopic confirmation for this sample will enable more robust conclusions.

Original languageEnglish (US)
Article number101
JournalAstrophysical Journal
Volume741
Issue number2
DOIs
StatePublished - Nov 10 2011

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cosmos
emitters
luminosity
erg
observatory
filter
spectrographs
narrowband
observatories
cameras
telescopes
filters

Keywords

  • early universe

ASJC Scopus subject areas

  • Space and Planetary Science
  • Astronomy and Astrophysics

Cite this

Search for z ∼ 6.96 Lyα emitters with Magellan/IMACS in the cosmos field. / Hibon, P.; Malhotra, S.; Rhoads, J.; Willott, C.

In: Astrophysical Journal, Vol. 741, No. 2, 101, 10.11.2011.

Research output: Contribution to journalArticle

Hibon, P. ; Malhotra, S. ; Rhoads, J. ; Willott, C. / Search for z ∼ 6.96 Lyα emitters with Magellan/IMACS in the cosmos field. In: Astrophysical Journal. 2011 ; Vol. 741, No. 2.
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