Systematics of the Ultraviolet Rising Flux in a GALEX /SDSS Sample of Early-Type Galaxies | Zendy

R. Michael Rich | Zendy; Samir Salim | Zendy; J. Brinchmann | Zendy; S. Charlot | Zendy; Mark Seibert | Zendy; Guinevere Kauffmann | Zendy; Young-Wook Lee | Zendy; Sukyoung K. Yi | Zendy; Tom A. Barlow | Zendy; L. Bianchi | Zendy; Yong-Ik Byun | Zendy; Jose Donas | Zendy; Karl Forster | Zendy; Peter G. Friedman | Zendy; Timothy M. Heckman | Zendy; Patrick N. Jelinsky | Zendy; Barry F. Madore | Zendy; Roger F. Malina | Zendy; D. Christopher Martin | Zendy; B. Milliard | Zendy; Patrick Morrissey | Zendy; Susan G. Neff | Zendy; David Schiminovich | Zendy; Oswald H. W. Siegmund | Zendy; Todd Small | Zendy; Alexander S. Szalay | Zendy; Barry Y. Welsh | Zendy; Ted Wyder | Zendy

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Systematics of the Ultraviolet Rising Flux in a GALEX /SDSS Sample of Early-Type Galaxies

Author(s) -

R. Michael Rich,

Samir Salim,

J. Brinchmann,

S. Charlot,

Mark Seibert,

Guinevere Kauffmann,

Young-Wook Lee,

Sukyoung K. Yi,

Tom A. Barlow,

L. Bianchi,

Yong-Ik Byun,

Jose Donas,

Karl Forster,

Peter G. Friedman,

Timothy M. Heckman,

Patrick N. Jelinsky,

Barry F. Madore,

Roger F. Malina,

D. Christopher Martin,

B. Milliard,

Patrick Morrissey,

Susan G. Neff,

David Schiminovich,

Oswald H. W. Siegmund,

Todd Small,

Alexander S. Szalay,

Barry Y. Welsh,

Ted Wyder

Publication year - 2005

Publication title -

the astrophysical journal

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.376

H-Index - 489

eISSN - 1538-4357

pISSN - 0004-637X

DOI - 10.1086/426939

Subject(s) - physics , astrophysics , galaxy , sky , photometry (optics) , metallicity , astronomy , galaxy formation and evolution , ultraviolet , star formation , extragalactic astronomy , velocity dispersion , luminous infrared galaxy , stars , quantum mechanics

We present ultraviolet photometry for a sample of morphologically early-typegalaxies selected by matching the Sloan Digital Sky Survey Data Release 1 withthe GALEX Medium and All-sky Imaging Surveys. We obtain a working sample of1032 early-type galaxies with GALEX FUV detections, SDSS spectroscopy, and$z<0.2$. Using the SDSS spectra to identify galaxies with even weak starformation or evidence of AGN, and further removing galaxies with any evidenceof non early-type morphology, we derive a final sample of 172 red quiescentearly-type galaxies. We find that the $FUV-r$ color has a full range of 5 mag.Plotting against the $FUV-r$ color the metallicity sensitive Lick $\rm Mg_2$and D4000 indices, and the stellar velocity dispersion, we find no correlationbetween our measurement of UV rising flux, and any parameter sensitive tometallicity.

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