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Nitrogen Production in Starburst Galaxies Detected by GALEX

Mallery, Ryan P. and Kewley, Lisa and Rich, R. Michael and Salim, Samir and Charlot, Stephane and Tremonti, Christy and Seibert, Mark and Small, Todd and Wyder, Ted and Barlow, Tom A. and Forster, Karl and Friedman, Peter G. and Martin, D. Christopher and Morrissey, Patrick and Neff, Susan G. and Schiminovich, David and Bianchi, Luciana and Donas, José and Heckman, Timothy M. and Lee, Young-Wook and Madore, Barry F. and Milliard, Bruno and Szalay, Alex S. and Welsh, Barry Y. and Yi, Sukyoung (2007) Nitrogen Production in Starburst Galaxies Detected by GALEX. Astrophysical Journal Supplement Series, 173 (2). pp. 482-493. ISSN 0067-0049. http://resolver.caltech.edu/CaltechAUTHORS:20100212-094447213

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Abstract

We investigate the production of nitrogen in star-forming galaxies with ultraviolet (UV) radiation detected by the Galaxy Evolution Explorer Satellite (GALEX). We use a sample of 8745 GALEX emission-line galaxies matched to the Sloan Digital Sky Survey (SDSS) spectroscopic sample. We derive both gas-phase oxygen and nitrogen abundances for the sample and apply stellar population synthesis models to derive stellar masses and star formation histories of the galaxies. We compare oxygen abundances derived using three different diagnostics. We derive the specific star formation rates of the galaxies by modeling the seven-band GALEX+SDSS photometry. We find that galaxies that have log (SFR/M_*) ≳ − 10.0 typically have values of log (N/O) ~ 0.05 dex less than galaxies with log (SFR/M_*) ≾ − 10.0 and similar oxygen abundances.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1086/518833 DOIArticle
http://www.iop.org/EJ/abstract/0067-0049/173/2/482/PublisherArticle
ORCID:
AuthorORCID
Madore, Barry F.0000-0002-1576-1676
Additional Information:© 2007 The American Astronomical Society. Received 2006 October 13; accepted 2007 April 5. GALEX is a NASA Small Explorer, launched in 2003 April. We gratefully acknowledge NASA’s support for construction, operation, and science analysis for the GALEX mission, developed in cooperation with the CNES of France and the Korean Ministry of Science and Technology. Funding for the creation and distribution of the SDSS Archive has been provided by the Alfred P. Sloan Foundation, the Participating Institutions, NASA, NSF, DoE, Monbukagakusho, and the Max Planck Society. Facilities: GALEX.
Group:Space Radiation Laboratory, Space Astrophysics Laboratory
Subject Keywords:galaxies : abundances; galaxies : fundamental parameters; galaxies : starburst; ultraviolet : galaxies
Record Number:CaltechAUTHORS:20100212-094447213
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20100212-094447213
Official Citation:Nitrogen Production in Starburst Galaxies Detected by GALEX Ryan P. Mallery, Lisa Kewley, R. Michael Rich, Samir Salim, Stephane Charlot, Christy Tremonti, Mark Seibert, Todd Small, Ted Wyder, Tom A. Barlow, Karl Forster, Peter G. Friedman, D. Christopher Martin, Patrick Morrissey, Susan G. Neff, David Schiminovich, Luciana Bianchi, José Donas, Timothy M. Heckman, Young-Wook Lee, Barry F. Madore, Bruno Milliard, Alex S. Szalay, Barry Y. Welsh, and Sukyoung Yi 2007 ApJS 173 482-493 doi: 10.1086/518833
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:17464
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:16 Feb 2010 19:32
Last Modified:20 May 2017 04:37

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