Hδ-Strong Galaxies in the Sloan Digital Sky Survey: I. The Catalog | Zendy

Tomotsugu Goto | Zendy; R. C. Nichol | Zendy; Sadanori Okamura | Zendy; M. Sekiguchi | Zendy; Christopher J. Miller | Zendy; Mariangela Bernardi | Zendy; Andrew Hopkins | Zendy; Christy Tremonti | Zendy; Andrew J. Connolly | Zendy; F. J. Castander | Zendy; J. Brinkmann | Zendy; M. Fukugita | Zendy; Michael Harvanek | Zendy; Željko Ivezić | Zendy; S. J. Kleinman | Zendy; J. Krzesiński | Zendy; Dan Long | Zendy; J. Loveday | Zendy; Eric H. Neilsen | Zendy; Peter R. Newman | Zendy; A. Nitta | Zendy; Stephanie A. Snedden | Zendy; Mark SubbaRao | Zendy

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Hδ-Strong Galaxies in the Sloan Digital Sky Survey: I. The Catalog

Author(s) -

Tomotsugu Goto,

R. C. Nichol,

Sadanori Okamura,

M. Sekiguchi,

Christopher J. Miller,

Mariangela Bernardi,

Andrew Hopkins,

Christy Tremonti,

Andrew J. Connolly,

F. J. Castander,

J. Brinkmann,

M. Fukugita,

Michael Harvanek,

Željko Ivezić,

S. J. Kleinman,

J. Krzesiński,

Dan Long,

J. Loveday,

Eric H. Neilsen,

Peter R. Newman,

A. Nitta,

Stephanie A. Snedden,

Mark SubbaRao

Publication year - 2003

Publication title -

publications of the astronomical society of japan

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.99

H-Index - 110

eISSN - 2053-051X

pISSN - 0004-6264

DOI - 10.1093/pasj/55.4.771

Subject(s) - physics , galaxy , astrophysics , sky , galaxy group , luminous infrared galaxy

[Abridged] We present here a new and homogeneous sample of 3340 galaxiesselected from the Sloan Digital Sky Survey (SDSS) based solely on the observedstrength of their Hdelta absorption line. These galaxies are commonly known as``post-starburst'' or ``E+A'' galaxies, and the study of these galaxies hasbeen severely hampered by the lack of a large, statistical sample of suchgalaxies. In this paper, we rectify this problem by selecting a sample ofgalaxies which possess an absorption Hdelta equivalent width of EW(Hdelta_max)- Delta EW(Hdelta_max) > 4A from 106682 galaxies in the SDSS. We have performedextensive tests on our catalog including comparing different methodologies ofmeasuring the Hdelta absorption and studying the effects of stellar absorption,dust extinction, emission-filling and measurement error. The measured abundanceof our Hdelta-selected (HDS) galaxies is 2.6 +/- 0.1% of all galaxies within avolume-limited sample of 0.05

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