Optical-IR Spectral Energy Distributions of z>2 Lyman Break Galaxies

Details Optical-IR Spectral Energy Distributions of z>2 Lyman Break Galaxies Optical-IR Spectral Energy Distributions of z>2 Lyman Break Galaxies

1997-12-17

arxiv.org/abs/astro-ph/9712216v1

Astronomy and Astrophysics

Astrophysics

Accepted for publication in the Astronomical Journal. Contains 23 pages including one table and 9 embedded figures

Scientific paper

10.1086/300291

Broadband optical and IR spectral energy distributions are determined for spectroscopically confirmed z>2 Lyman break objects in the Hubble Deep Field (HDF). These photometric data are compared to spectral synthesis models which take into account the effects of metallicity and of internal reddening due to dust. It is found that, on average, Lyman break objects are shrouded in enough dust (typically E(B-V)~0.3) to suppress their UV fluxes by a factor of more than 10. The dust-corrected star formation rate in a typical HDF Lyman break object is ~60 h^-2 M_sun/yr (q_0=0.5). Furthermore, these objects are dominated by very young (<~0.2 Gyr, and a median of ~25 Myr) stellar populations, suggesting that star formation at high redshift is episodic rather than continuous. Typically, these star formation episodes produce ~10^9 h^-2 M_sun of stars, or ~1/20 of the stellar mass of a present-day L* galaxy.

Affiliated with

Also associated with

No associations

Rating

Optical-IR Spectral Energy Distributions of z>2 Lyman Break Galaxies does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Optical-IR Spectral Energy Distributions of z>2 Lyman Break Galaxies, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical-IR Spectral Energy Distributions of z>2 Lyman Break Galaxies will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-677240