Stellar properties of z ~ 1 Lyman-break galaxies from ACS slitless grism spectra

Abstract

Lyman-break galaxies are now regularly found in the high redshift Universe by searching for the break in the galaxy spectrum caused by the Lyman-limit redshifted into the optical or even near-IR. At lower redshift, this break is covered by the GALEX UV channels and small samples of z ~ 1 LBGs have been presented in the literature. Here we give results from fitting the spectral energy distributions of a small sub-set of low redshift LBGs and demonstrate the advantage of including photometric points derived from HST ACS slitless grism observations. The results show these galaxies to have very young, star forming populations, while still being massive and dusty. LBGs at low and high redshift show remarkable similarities in their properties, indicating that the LBG selection method picks similar galaxies throughout the Universe.

7 pages, 3 figures, 2 tables, accepted in A&A

References in corpus (7)

• Subaru Deep Survey V. A Census of Lyman Break Galaxies at z=4 and 5 in the Subaru Deep Fields: Photometric Properties
• Protoclusters associated with z > 2 radio galaxies. I. Characteristics of high redshift protoclusters
• Deep U band and R imaging of GOODS-South: Observations,data reduction and first results
• Lyman-break galaxies at z~5 -I. First significant stellar mass assembly in galaxies that are not simply z~3 LBGs at higher redshift
• Direct Measurements of the Stellar Continua and Balmer/4000 Angstrom Breaks of Red z>2 Galaxies: Redshifts and Improved Constraints on Stellar Populations
• Lyman Break Galaxies at z~1 and the evolution of the dust attenuation in star-forming galaxies with the redshift
• Evolution of Lyman Alpha Galaxies: Stellar Populations at z ~ 0.3

Cited by in corpus (7)

• The nature of z ~ 2.3 Lyman-alpha emitters
• Spatially-resolved HST Grism Spectroscopy of a Lensed Emission Line Galaxy at z~1
• The UV to FIR spectral energy distribution of star-forming galaxies in the redshift desert
• GALEX selected Lyman Break Galaxies at z~2: Comparison with other Populations
• Lyman break and UV-selected galaxies at $z\sim 1$ I. Stellar populations from ALHAMBRA survey
• SED-inferred properties and morphology of Lyman-break galaxies at $z\sim 1$ in the CDF-S
• The Hubble Legacy Archive ACS Grism Data