The wide field imager Lyman-alpha search (WFILAS) for galaxies at redshift ∼5.7* I. A. spatially compact Lyα emitting galaxy at redshift 5.721

E. Westra; D. Heath Jones; C. E. Lidman; R. M. Athreya; K. Meisenheimer; C. Wolf; T. Szeifert; E. Pompei; L. Vanzi

doi:10.1051/0004-6361:200400126

The wide field imager Lyman-alpha search (WFILAS) for galaxies at redshift ∼5.7* I. A. spatially compact Lyα emitting galaxy at redshift 5.721

E. Westra^*, D. Heath Jones, C. E. Lidman, R. M. Athreya, K. Meisenheimer, C. Wolf, T. Szeifert, E. Pompei, L. Vanzi

^*Corresponding author for this work

Research School of Astronomy & Astrophysics

Research output: Contribution to journal › Article › peer-review

20 Citations (Scopus)

Abstract

We report the spectroscopic confirmation of a compact Lyα emitting galaxy at z = 5.721. A FORS2 spectrum of the source shows a strong asymmetric line with a flux of 5 × 10^-17 erg s^-1 cm ^-2, making it one of the brightest Lyα emitting galaxies at this redshift, and a line-of-sight velocity dispersion of 400 km s ^-1. We also have a tentative detection of a second, narrower component that is redshifted by 400 km s^-1 with respect to the main peak. A FORS2 image shows that the source is compact, with a FWHM of 0″.75, which corresponds to 3.2 kpc at this redshift**. This source is a brighter example of J1236.8+6215 (Dawson et al. 2002, ApJ, 570, 92), another Lya emitting galaxy at z ∼ 5.2.

Original language	English
Pages (from-to)	L21-L24
Journal	Astronomy and Astrophysics
Volume	430
Issue number	2
DOIs	https://doi.org/10.1051/0004-6361:200400126
Publication status	Published - Feb 2005

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title = "The wide field imager Lyman-alpha search (WFILAS) for galaxies at redshift ∼5.7* I. A. spatially compact Lyα emitting galaxy at redshift 5.721",

abstract = "We report the spectroscopic confirmation of a compact Lyα emitting galaxy at z = 5.721. A FORS2 spectrum of the source shows a strong asymmetric line with a flux of 5 × 10-17 erg s-1 cm -2, making it one of the brightest Lyα emitting galaxies at this redshift, and a line-of-sight velocity dispersion of 400 km s -1. We also have a tentative detection of a second, narrower component that is redshifted by 400 km s-1 with respect to the main peak. A FORS2 image shows that the source is compact, with a FWHM of 0″.75, which corresponds to 3.2 kpc at this redshift**. This source is a brighter example of J1236.8+6215 (Dawson et al. 2002, ApJ, 570, 92), another Lya emitting galaxy at z ∼ 5.2.",

keywords = "Galaxies: evolution, Galaxies: high-redshift, Galaxies: individual: J114334.98-014433.9, Galaxies: starburst",

author = "E. Westra and Jones, {D. Heath} and Lidman, {C. E.} and Athreya, {R. M.} and K. Meisenheimer and C. Wolf and T. Szeifert and E. Pompei and L. Vanzi",

year = "2005",

month = feb,

doi = "10.1051/0004-6361:200400126",

language = "English",

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T1 - The wide field imager Lyman-alpha search (WFILAS) for galaxies at redshift ∼5.7* I. A. spatially compact Lyα emitting galaxy at redshift 5.721

AU - Westra, E.

AU - Jones, D. Heath

AU - Lidman, C. E.

AU - Athreya, R. M.

AU - Meisenheimer, K.

AU - Wolf, C.

AU - Szeifert, T.

AU - Pompei, E.

AU - Vanzi, L.

PY - 2005/2

Y1 - 2005/2

N2 - We report the spectroscopic confirmation of a compact Lyα emitting galaxy at z = 5.721. A FORS2 spectrum of the source shows a strong asymmetric line with a flux of 5 × 10-17 erg s-1 cm -2, making it one of the brightest Lyα emitting galaxies at this redshift, and a line-of-sight velocity dispersion of 400 km s -1. We also have a tentative detection of a second, narrower component that is redshifted by 400 km s-1 with respect to the main peak. A FORS2 image shows that the source is compact, with a FWHM of 0″.75, which corresponds to 3.2 kpc at this redshift**. This source is a brighter example of J1236.8+6215 (Dawson et al. 2002, ApJ, 570, 92), another Lya emitting galaxy at z ∼ 5.2.

AB - We report the spectroscopic confirmation of a compact Lyα emitting galaxy at z = 5.721. A FORS2 spectrum of the source shows a strong asymmetric line with a flux of 5 × 10-17 erg s-1 cm -2, making it one of the brightest Lyα emitting galaxies at this redshift, and a line-of-sight velocity dispersion of 400 km s -1. We also have a tentative detection of a second, narrower component that is redshifted by 400 km s-1 with respect to the main peak. A FORS2 image shows that the source is compact, with a FWHM of 0″.75, which corresponds to 3.2 kpc at this redshift**. This source is a brighter example of J1236.8+6215 (Dawson et al. 2002, ApJ, 570, 92), another Lya emitting galaxy at z ∼ 5.2.

KW - Galaxies: evolution

KW - Galaxies: high-redshift

KW - Galaxies: individual: J114334.98-014433.9

KW - Galaxies: starburst

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U2 - 10.1051/0004-6361:200400126

DO - 10.1051/0004-6361:200400126

M3 - Article

SN - 0004-6361

VL - 430

SP - L21-L24

JO - Astronomy and Astrophysics

JF - Astronomy and Astrophysics

IS - 2

ER -

The wide field imager Lyman-alpha search (WFILAS) for galaxies at redshift ∼5.7* I. A. spatially compact Lyα emitting galaxy at redshift 5.721

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