Infrared luminous Lyman break galaxies: A population that bridges LBGs and scuba galaxies

J. S. Huang; D. Rigopoulou; S. P. Willner; C. Papovich; C. Shu; M. L.N. Ashby; P. Barmby; K. Bundy; C. Conselice; E. Egami; P. G. Pérez-González; J. L. Rosenberg; H. A. Smith; G. Wilson; G. G. Fazio

doi:10.1086/491697

Infrared luminous Lyman break galaxies: A population that bridges LBGs and scuba galaxies

J. S. Huang, D. Rigopoulou, S. P. Willner, C. Papovich, C. Shu, M. L.N. Ashby, P. Barmby, K. Bundy, C. Conselice, E. Egami, P. G. Pérez-González, J. L. Rosenberg, H. A. Smith, G. Wilson, G. G. Fazio

Steward Observatory

Research output: Contribution to journal › Review article › peer-review

34 Scopus citations

Abstract

A deep mid- and far-infrared survey in the extended Groth strip (EGS) area gives 3.6 to 8 μm flux densities or upper limits for 253 Lyman break galaxies (LBGs). The LBGs are a diverse population but with properties correlated with luminosity. The LBGs show a factor of 30 range in indicated stellar mass and a factor of 10 range in apparent dust content relative to stellar mass. About 5% of LBGs are luminous at all wavelengths, with powerful emission at rest 6 μm. In the rest 0.9 to 2 μm spectral range these galaxies have stellar spectral slopes with no sign of an AGN power-law component, suggesting that their emission is mainly powered by intensive star formation. Galaxies in this luminous population share the infrared properties of cold Submillimeter Common-User Bolometric Array (SCUBA) sources: both are massive and dusty starburst galaxies at 2 < z < 3; their stellar mass is larger than 10 ¹¹ M_⊙. We suggest that these galaxies are the progenitors of present-day giant elliptical galaxies, with a substantial fraction of their stars already formed at z ≈ 3.

Original language	English (US)
Pages (from-to)	137-141
Number of pages	5
Journal	Astrophysical Journal
Volume	634
Issue number	1 I
DOIs	https://doi.org/10.1086/491697
State	Published - Nov 20 2005

Keywords

Cosmology: observations
Galaxies: high-redshift
Infrared: galaxies
Surveys

ASJC Scopus subject areas

Astronomy and Astrophysics
Space and Planetary Science

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10.1086/491697

Cite this

Huang, J. S., Rigopoulou, D., Willner, S. P., Papovich, C., Shu, C., Ashby, M. L. N., Barmby, P., Bundy, K., Conselice, C., Egami, E., Pérez-González, P. G., Rosenberg, J. L., Smith, H. A., Wilson, G., & Fazio, G. G. (2005). Infrared luminous Lyman break galaxies: A population that bridges LBGs and scuba galaxies. Astrophysical Journal, 634(1 I), 137-141. https://doi.org/10.1086/491697

Huang, JS, Rigopoulou, D, Willner, SP, Papovich, C, Shu, C, Ashby, MLN, Barmby, P, Bundy, K, Conselice, C, Egami, E, Pérez-González, PG, Rosenberg, JL, Smith, HA, Wilson, G & Fazio, GG 2005, 'Infrared luminous Lyman break galaxies: A population that bridges LBGs and scuba galaxies', Astrophysical Journal, vol. 634, no. 1 I, pp. 137-141. https://doi.org/10.1086/491697

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title = "Infrared luminous Lyman break galaxies: A population that bridges LBGs and scuba galaxies",

abstract = "A deep mid- and far-infrared survey in the extended Groth strip (EGS) area gives 3.6 to 8 μm flux densities or upper limits for 253 Lyman break galaxies (LBGs). The LBGs are a diverse population but with properties correlated with luminosity. The LBGs show a factor of 30 range in indicated stellar mass and a factor of 10 range in apparent dust content relative to stellar mass. About 5% of LBGs are luminous at all wavelengths, with powerful emission at rest 6 μm. In the rest 0.9 to 2 μm spectral range these galaxies have stellar spectral slopes with no sign of an AGN power-law component, suggesting that their emission is mainly powered by intensive star formation. Galaxies in this luminous population share the infrared properties of cold Submillimeter Common-User Bolometric Array (SCUBA) sources: both are massive and dusty starburst galaxies at 2 < z < 3; their stellar mass is larger than 10 11 M⊙. We suggest that these galaxies are the progenitors of present-day giant elliptical galaxies, with a substantial fraction of their stars already formed at z ≈ 3.",

keywords = "Cosmology: observations, Galaxies: high-redshift, Infrared: galaxies, Surveys",

author = "Huang, {J. S.} and D. Rigopoulou and Willner, {S. P.} and C. Papovich and C. Shu and Ashby, {M. L.N.} and P. Barmby and K. Bundy and C. Conselice and E. Egami and P{\'e}rez-Gonz{\'a}lez, {P. G.} and Rosenberg, {J. L.} and Smith, {H. A.} and G. Wilson and Fazio, {G. G.}",

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T1 - Infrared luminous Lyman break galaxies

T2 - A population that bridges LBGs and scuba galaxies

AU - Huang, J. S.

AU - Rigopoulou, D.

AU - Willner, S. P.

AU - Papovich, C.

AU - Shu, C.

AU - Ashby, M. L.N.

AU - Barmby, P.

AU - Bundy, K.

AU - Conselice, C.

AU - Egami, E.

AU - Pérez-González, P. G.

AU - Rosenberg, J. L.

AU - Smith, H. A.

AU - Wilson, G.

AU - Fazio, G. G.

PY - 2005/11/20

Y1 - 2005/11/20

N2 - A deep mid- and far-infrared survey in the extended Groth strip (EGS) area gives 3.6 to 8 μm flux densities or upper limits for 253 Lyman break galaxies (LBGs). The LBGs are a diverse population but with properties correlated with luminosity. The LBGs show a factor of 30 range in indicated stellar mass and a factor of 10 range in apparent dust content relative to stellar mass. About 5% of LBGs are luminous at all wavelengths, with powerful emission at rest 6 μm. In the rest 0.9 to 2 μm spectral range these galaxies have stellar spectral slopes with no sign of an AGN power-law component, suggesting that their emission is mainly powered by intensive star formation. Galaxies in this luminous population share the infrared properties of cold Submillimeter Common-User Bolometric Array (SCUBA) sources: both are massive and dusty starburst galaxies at 2 < z < 3; their stellar mass is larger than 10 11 M⊙. We suggest that these galaxies are the progenitors of present-day giant elliptical galaxies, with a substantial fraction of their stars already formed at z ≈ 3.

AB - A deep mid- and far-infrared survey in the extended Groth strip (EGS) area gives 3.6 to 8 μm flux densities or upper limits for 253 Lyman break galaxies (LBGs). The LBGs are a diverse population but with properties correlated with luminosity. The LBGs show a factor of 30 range in indicated stellar mass and a factor of 10 range in apparent dust content relative to stellar mass. About 5% of LBGs are luminous at all wavelengths, with powerful emission at rest 6 μm. In the rest 0.9 to 2 μm spectral range these galaxies have stellar spectral slopes with no sign of an AGN power-law component, suggesting that their emission is mainly powered by intensive star formation. Galaxies in this luminous population share the infrared properties of cold Submillimeter Common-User Bolometric Array (SCUBA) sources: both are massive and dusty starburst galaxies at 2 < z < 3; their stellar mass is larger than 10 11 M⊙. We suggest that these galaxies are the progenitors of present-day giant elliptical galaxies, with a substantial fraction of their stars already formed at z ≈ 3.

KW - Cosmology: observations

KW - Galaxies: high-redshift

KW - Infrared: galaxies

KW - Surveys

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JO - Astrophysical Journal

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Infrared luminous Lyman break galaxies: A population that bridges LBGs and scuba galaxies

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