0000000000529123

AUTHOR

ÁNgel Bongiovanni

showing 2 related works from this author

Lyman break and ultraviolet-selected galaxies at z ~ 1 - II. PACS 100μm/160μm FIR detections

2013

In this work, we report the Photodetector Array Camera and Spectrometer (PACS) 100 μm/160 μm detections of a sample of 42 GALEX-selected and far-infrared (FIR)-detected Lyman break galaxies (LBGs) at z ~ 1 located in the Cosmic Evolution Survey (COSMOS) field and analyse their ultraviolet (UV) to FIR properties. The detection of these LBGs in the FIR indicates that they have a dust content high enough so that its emission can be directly detected. According to a spectral energy distribution (SED) fitting with stellar population templates to their UV-to-near-IR observed photometry, PACS-detected LBGs tend to be bigger (Reff ~ 4.1 kpc), more massive [log (M*/M⊙) ~ 10.7], dustier [Es(B - V) ~ …

Stellar populationAstrophysicsgalaxies [Radio continuum]medicine.disease_causestar formation [Galaxies]Physical cosmologyhigh-redshift [Galaxies]galaxies [Infrared]galaxies: high-redshiftmedicineLuminous infrared galaxyPhysicsStar formationinfrared: galaxieAstronomyAstronomy and Astrophysicsevolution [Galaxies]RedshiftGalaxygalaxies [Ultraviolet]Space and Planetary Sciencegalaxies: star formationultraviolet: galaxiesSpectral energy distributionradio continuum: galaxiegalaxies: evolutionUltraviolet
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Lyman break and ultraviolet-selected galaxies at z ̃ 1-I. Stellar populations from the ALHAMBRA survey

2013

We take advantage of the exceptional photometric coverage provided by the combination of GALEX data in the ultraviolet (UV) and the ALHAMBRA survey in the optical and near-infrared to analyse the physical properties of a sample of 1225 GALEX-selected Lyman break galaxies (LBGs) at 0.8 ≲ z ≲ 1.2 that are located in the COSMOS field. This is the largest sample of LBGs studied in this redshift range to date. According to a spectral energy distribution (SED) fitting with synthetic stellar population templates, we find that LBGs at z ̃ 1 are mostly young galaxies with a median age of 341 Myr and have intermediate dust attenuation, (Es(B - V)) ̃ 0.20. Owing to the selection criterion, LBGs at z ̃…

media_common.quotation_subjectLibrary scienceAstrophysics::Cosmology and Extragalactic Astrophysicsstar formation [Galaxies]high-redshift [Galaxies]ExcellenceAstrophysics::Solar and Stellar Astrophysicsobservations [Cosmology]Astrophysics::Galaxy Astrophysicsmedia_commonPhysicsGalaxies: star formationphotometry [Galaxies]Cosmology: observationsGalaxies: high-redshiftAstronomyGalaxies: evolutionAstronomy and AstrophysicsGalaxies: photometryevolution [Galaxies]Galaxygalaxies [Ultraviolet]Space and Planetary ScienceUltraviolet: galaxiesAstrophysics::Earth and Planetary AstrophysicsAdministration (government)
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