The UV-optical color magnitude diagram.: II.: Physical properties and morphological evolution on and off of a star-forming sequence

被引：285

作者：

Schiminovich, David ^{[1
]}

Wyder, Ted K. ^{[2
]}

Martin, D. Christopher ^{[2
]}

Johnson, Benjamin. D. ^{[1
]}

Salim, Samir ^{[3
,4
]}

Seibert, Mark ^{[5
]}

Treyer, Marie A. ^{[2
,6
]}

Budavari, Tamas ^{[7
]}

Hoopes, Charles ^{[7
]}

Zamojski, Michel ^{[1
]}

Barlow, Tom A. ^{[2
]}

Forster, Karl G. ^{[2
]}

Friedman, Peter G. ^{[2
]}

Morrissey, Patrick ^{[2
]}

Neff, Susan G. ^{[8
]}

Small, Todd A. ^{[2
]}

Bianchi, Luciana ^{[9
]}

Donas, Jose ^{[6
]}

Heckman, Timothy M. ^{[7
]}

Lee, Young-Wook ^{[10
]}

Madore, Barry F. ^{[5
]}

Milliard, Bruno ^{[6
]}

Rich, R. Michael ^{[4
]}

Szalay, Alex. S. ^{[7
]}

Welsh, Barry Y. ^{[11
]}

Yi, Sukyoung ^{[10
]}

机构：

[1] Columbia Univ, Dept Astron, New York, NY 10027 USA

[2] CALTECH, Pasadena, CA 91125 USA

[3] Natl Opt Astron Observ, Tucson, AZ 85719 USA

[4] Univ Calif Los Angeles, Dept Phys & Astron, Los Angeles, CA 90095 USA

[5] Observ Carnegie Inst Washington, Pasadena, CA 91101 USA

[6] Lab Astrophys Marseille, F-13376 Marseille, France

[7] Johns Hopkins Univ, Dept Phys & Astron, Baltimore, MD 21218 USA

[8] NASA, Goddard Space Flight Ctr, Astron & Solar Phys Lab, Greenbelt, MD 20771 USA

[9] Johns Hopkins Univ, Ctr Astrophys Sci, Baltimore, MD 21218 USA

[10] Yonsei Univ, Ctr Space Astrophys, Seoul 120749, South Korea

[11] Univ Calif Berkeley, Space Sci Lab, Berkeley, CA 94720 USA

来源：

ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES | 2007年 / 173卷 / 02期

关键词：

galaxies : evolution; galaxies : formation; surveys; ultraviolet : galaxies;

D O I：

10.1086/524659

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We use the UV-optical color magnitude diagram in combination with spectroscopic and photometric measurements derived from the SDSS spectroscopic sample to measure the distribution of galaxies in the local universe (z < 0.25) and their physical properties as a function of specific star formation rate (SFR/M-star) and stellar mass (M-star). Throughout this study our emphasis is on the properties of galaxies on and off of a local "star-forming sequence." We discuss how the physical characteristics of galaxies along this sequence are related to scaling relations typically derived for galaxies of different morphological types. We find, among other trends, that our measure of the star formation rate surface density, Sigma(SFR), is nearly constant along this sequence. We discuss this result and implications for galaxies at higher redshift. For the first time, we report on measurements of the local UV luminosity function versus galaxy structural parameters, as well as inclination. We also split our sample into disk-dominated and bulge-dominated subsamples using the i-band Sersic index and find that disk-dominated galaxies occupy a very tight locus in SFR/M-star vs. M-star space, while bulge-dominated galaxies display a much larger spread of SFR/M-star at fixed stellar mass. A significant fraction of galaxies with SFR/M-star and Sigma(SFR) above those on the "star-forming sequence" are bulge-dominated. We can use our derived distribution functions to ask whether a significant fraction of these galaxies may be experiencing a final episode of star formation (possibly induced by a merger or other burst), soon to be quenched, by determining whether this population can explain the growth rate of the non-star-forming galaxies on the "red sequence." We find that this is a plausible scenario for bulge-dominated galaxies near the characteristic transition mass under reasonable assumptions regarding quenching timescales. Similarly, we use this technique to estimate the rate of mergers/starbursts that take galaxies off of the star-forming sequence and show that the implied merger rates are consistent with local measurements.

引用

页码：315 / 341

页数：27

共 90 条

[1] The Fourth Data Release of the Sloan Digital Sky Survey [J].

Adelman-McCarthy, JK ;

Agüeros, MA ;

Allam, SS ;

Anderson, KSJ ;

Anderson, SF ;

Annis, J ;

Bahcall, NA ;

Baldry, IK ;

Barentine, JC ;

Berlind, A ;

Bernardi, M ;

Blanton, MR ;

Boroski, WN ;

Brewington, HJ ;

Brinchmann, J ;

Brinkmann, J ;

Brunner, RJ ;

Budavári, T ;

Carey, LN ;

Carr, MA ;

Castander, FJ ;

Connolly, AJ ;

Csabai, I ;

Czarapata, PC ;

Dalcanton, JJ ;

Doi, M ;

Dong, F ;

Eisenstein, DJ ;

Evans, ML ;

Fan, XH ;

Finkbeiner, DP ;

Friedman, SD ;

Frieman, JA ;

Fukugita, M ;

Gillespie, B ;

Glazebrook, K ;

Gray, J ;

Grebel, EK ;

Gunn, JE ;

Gurbani, VK ;

de Haas, E ;

Hall, PB ;

Harris, FH ;

Harvanek, M ;

Hawley, SL ;

Hayes, J ;

Hendry, JS ;

Hennessy, GS ;

Hindsley, RB ;

Hirata, CM .

ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES, 2006, 162 (01) :38-48

[2] The ultraviolet, optical, and infrared properties of Sloan Digital Sky Survey sources detected by GALEX [J].

Agüeros, MA ;

Ivezic, Z ;

Covey, KR ;

Obric, M ;

Hao, L ;

Walkowicz, LM ;

West, AA ;

Vanden Berk, DE ;

Lupton, RH ;

Knapp, GR ;

Gunn, JE ;

Richards, GT ;

Bochanski, J ;

Brooks, A ;

Claire, M ;

Haggard, D ;

Kaib, N ;

Kimball, A ;

Gogarten, SM ;

Seth, A ;

Solontoi, M .

ASTRONOMICAL JOURNAL, 2005, 130 (03) :1022-1036

[3] The stellar populations of spiral galaxies [J].

Bell, EF ;

de Jong, RS .

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2000, 312 (03) :497-520

[4] Toward an understanding of the rapid decline of the cosmic star formation rate [J].

Bell, EF ;

Papovich, C ;

Wolf, C ;

Le Floc'h, E ;

Caldwell, JAR ;

Barden, M ;

Egami, E ;

McIntosh, DH ;

Meisenheimer, K ;

Pérez-González, PG ;

Rieke, GH ;

Rieke, MJ ;

Rigby, JR ;

Rix, HW .

ASTROPHYSICAL JOURNAL, 2005, 625 (01) :23-36

[5] The optical and near-infrared properties of galaxies. I. Luminosity and stellar mass functions [J].

Bell, EF ;

McIntosh, DH ;

Katz, N ;

Weinberg, MD .

ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES, 2003, 149 (02) :289-312

[6] Estimating star formation rates from infrared and radio luminosities: The origin of the radio-infrared correlation [J].

Bell, EF .

ASTROPHYSICAL JOURNAL, 2003, 586 (02) :794-813

[7] Dust-induced systematic errors in ultraviolet-derived star formation rates [J].

Bell, EF .

ASTROPHYSICAL JOURNAL, 2002, 577 (01) :150-154

[8] Star formation and the growth of stellar mass [J].

Bell, Eric F. ;

Zheng, Xian Zhong ;

Papovich, Casey ;

Borch, Andrea .

ASTROPHYSICAL JOURNAL, 2007, 663 (02) :834-843

[9] The merger rate of massive galaxies [J].

Bell, Eric F. ;

Phleps, Stefanie ;

Somerville, Rachel S. ;

Wolf, Christian ;

Borch, Andrea ;

Meisenheimer, Klaus .

ASTROPHYSICAL JOURNAL, 2006, 652 (01) :270-276

[10] Statistical properties of the GALEX-SDSS matched source catalogs, and classification of the UV sources [J].

Bianchi, Luciana ;

Rodriguez-Merino, Lino ;

Viton, Maurice ;

Laget, Michel ;

Efremova, Boryana ;

Herald, James ;

Conti, Alberto ;

Shiao, Bernie ;

De Paz, Armando Gil ;

Salim, Samir ;

Thakar, A. ;

Friedman, Peter G. ;

Rey, Soo-Chang ;

Thilker, David ;

Barlow, Tom A. ;

Budavari, Tamas ;

Donas, Jose ;

Forster, Karl ;

Heckman, Timothy M. ;

Lee, Young-Wook ;

Madore, Barry F. ;

Martin, D. Christopher ;

Milliard, Bruno ;

Morrissey, Patrick ;

Neff, Susan G. ;

Rich, R. Michael ;

Schiminovich, David ;

Seibert, Mark ;

Small, Todd ;

Szalay, Alex S. ;

Wyder, Ted K. ;

Welsh, Barry Y. ;

Yi, Sukyoung K. .

ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES, 2007, 173 (02) :659-672

← 1 2 3 4 5 6 7 8 9 →