The discovery of the most UV-Ly alpha luminous star-forming galaxy: a young, dust- and metal-poor starburst with QSO-like luminosities
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The discovery of the most UV-Ly alpha luminous star-forming galaxy : a young, dust- and metal-poor starburst with QSO-like luminosities. / Marques-Chaves, R.; Alvarez-Marquez, J.; Colina, L.; Perez-Fournon, I.; Schaerer, D.; Dalla Vecchia, C.; Hashimoto, T.; Jimenez-Angel, C.; Shu, Y.
In: Monthly Notices of the Royal Astronomical Society, Vol. 499, No. 1, 01.11.2020, p. L105-L110.Research output: Contribution to journal › Journal article › Research › peer-review
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TY - JOUR
T1 - The discovery of the most UV-Ly alpha luminous star-forming galaxy
T2 - a young, dust- and metal-poor starburst with QSO-like luminosities
AU - Marques-Chaves, R.
AU - Alvarez-Marquez, J.
AU - Colina, L.
AU - Perez-Fournon, I.
AU - Schaerer, D.
AU - Dalla Vecchia, C.
AU - Hashimoto, T.
AU - Jimenez-Angel, C.
AU - Shu, Y.
PY - 2020/11/1
Y1 - 2020/11/1
N2 - We report the discovery of BOSS-EUVLG1 at z = 2.469, by far the most luminous, almost un-obscured star-forming galaxy known at any redshift. First classified as a QSO within the Baryon Oscillation Spectroscopic Survey, follow-up observations with the Gran Telescopio Canarias reveal that its large luminosity, M-UV similar or equal to -24.40 and log(L-Ly alpha/erg s(-1)) similar or equal to 44.0, is due to an intense burst of star formation, and not to an active galactic nucleus or gravitational lensing. BOSS-EUVLG1 is a compact (r(eff) similar or equal to 1.2 kpc), young (4-5 Myr) starburst with a stellar mass log(M-*/M-circle dot) = 10.0 +/- 0.1 and a prodigious star formation rate of similar or equal to 1000 M-circle dot yr(-1). However, it is metal- and dust-poor [12+ log(O/H) = 8.13 +/- 0.19, E(B - V) similar or equal to 0.07, log(L-IR/L-UV) <-1.2], indicating that we are witnessing the very early phase of an intense starburst that has had no time to enrich the ISM. BOSS-EUVLG1 might represent a short-lived (
AB - We report the discovery of BOSS-EUVLG1 at z = 2.469, by far the most luminous, almost un-obscured star-forming galaxy known at any redshift. First classified as a QSO within the Baryon Oscillation Spectroscopic Survey, follow-up observations with the Gran Telescopio Canarias reveal that its large luminosity, M-UV similar or equal to -24.40 and log(L-Ly alpha/erg s(-1)) similar or equal to 44.0, is due to an intense burst of star formation, and not to an active galactic nucleus or gravitational lensing. BOSS-EUVLG1 is a compact (r(eff) similar or equal to 1.2 kpc), young (4-5 Myr) starburst with a stellar mass log(M-*/M-circle dot) = 10.0 +/- 0.1 and a prodigious star formation rate of similar or equal to 1000 M-circle dot yr(-1). However, it is metal- and dust-poor [12+ log(O/H) = 8.13 +/- 0.19, E(B - V) similar or equal to 0.07, log(L-IR/L-UV) <-1.2], indicating that we are witnessing the very early phase of an intense starburst that has had no time to enrich the ISM. BOSS-EUVLG1 might represent a short-lived (
KW - galaxies: formation
KW - galaxies: high-redshift
KW - SIMILAR-TO 2
KW - EMITTERS
KW - EVOLUTION
KW - DENSITY
KW - REGIONS
KW - MODELS
KW - SLOPE
U2 - 10.1093/mnrasl/slaa160
DO - 10.1093/mnrasl/slaa160
M3 - Journal article
VL - 499
SP - L105-L110
JO - Royal Astronomical Society. Monthly Notices
JF - Royal Astronomical Society. Monthly Notices
SN - 0035-8711
IS - 1
ER -
ID: 258027584