NDLI: Metallicities of emission-line galaxies from hst acs pears and hst wfc3 ers grism spectroscopy at 0.6 is less than z is less than 2.4

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Metallicities of emission-line galaxies from hst acs pears and hst wfc3 ers grism spectroscopy at 0.6 is less than z is less than 2.4

Content Provider	NASA Technical Reports Server (NTRS)
Author	O'Connell, Robert Windhorst, Rogier A. Walsh, Jeremy Straughn, Amber Xia, Lifang Malhotra, Sangetta Kuntschner, Harald Pirzkal, Nor Rhoads Sr., James Cohen, Seth Finkelstein, Steven Kuemmel, Martin
Copyright Year	2012
Description	Galaxies selected on the basis of their emission line strength. show low metallicities, regardless of their redshifts. We conclude this from a sample of faint galaxies at redshifts between 0.6 < z < 2.4, selected by their prominent emission lines in low resolution grism spectra in the optiCa.i with the Advanced Camera for Surveys (ACS) on the Hubble Space Telescope (HST) and in the near-infrared using Wide-Field Camera 3 (WFC3). Using a sample of 11 emission line galaxies (ELGs) at 0.6 < z < 2.4 with luminosities of -22 approx < MB approx -19 which have [OII], H-Beta, and [OIII] line flux measurements from the combination of two grism spectral surveys, we use the R23 method to derive the gas-phase oxygen abundances: 7.5 <12+log(0/H)<8.5. The galaxy stellar masses are derived using Bayesian based Markov Chain Monte Carlo (pi MC(exp 2)) fitting of their Spectral Energy Distribution (SED), and span the mass range 8.1 < log(M(stellar)/M(solar)) < 10.1. These galaxies show a mass-metal1icity (M-L) and Luminosity-Metallicity (LZ) relation, which is offset by -
File Size	5859157
Page Count	24
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_20130009903
Archival Resource Key	ark:/13960/t6p035k3x
Language	English
Publisher Date	2012-01-01
Access Restriction	Open
Subject Keyword	Astronomy Red Shift Galaxies Galactic Evolution Spectral Energy Distribution Luminosity Astronomical Spectroscopy Prisms Surveys Galactic Mass Stellar Mass Metallicity Morphology Hubble Space Telescope Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Article

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