Galaxy Zoo: the fraction of merging galaxies in the SDSS and their morphologies

被引：165

作者：

Darg, D. W. ^{[1
]}

Kaviraj, S. ^{[1
,2
]}

Lintott, C. J. ^{[1
]}

Schawinski, K. ^{[3
,4
]}

Sarzi, M. ^{[5
]}

Bamford, S. ^{[6
]}

Silk, J. ^{[1
]}

Proctor, R. ^{[7
]}

Andreescu, D. ^{[8
]}

Murray, P. ^{[9
]}

Nichol, R. C. ^{[10
]}

Raddick, M. J. ^{[11
]}

Slosar, A. ^{[12
,13
]}

Szalay, A. S. ^{[11
]}

Thomas, D. ^{[10
]}

Vandenberg, J. ^{[11
]}

机构：

[1] Univ Oxford, Dept Phys, Oxford OX1 3RH, England

[2] Univ Coll London, Mullard Space Sci Lab, Dorking RH5 6NT, Surrey, England

[3] Yale Univ, Dept Phys, New Haven, CT 06511 USA

[4] Yale Univ, Yale Ctr Astron & Astrophys, New Haven, CT 06520 USA

[5] Univ Hertfordshire, Ctr Astrophys Res, Hatfield AL10 9AB, Herts, England

[6] Univ Nottingham, Ctr Astron & Particle Theory, Nottingham NG7 2RD, England

[7] Waveney Consulting, Waveney Web Serv, Wimborne BH21 3QY, Dorset, England

[8] LinkLab, Bronx, NY 10471 USA

[9] Fingerprint Digital Media, Newtownards BT23 7GY, Co Down, North Ireland

[10] Univ Portsmouth, Inst Cosmol & Gravitat, Portsmouth PO1 2EG, Hants, England

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

[12] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley Ctr Cosmol Phys, Berkeley, CA 94720 USA

[13] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA

来源：

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 2010年 / 401卷 / 02期

关键词：

catalogues; galaxies: elliptical and lenticular; cD; galaxies: evolution; galaxies: general; galaxies: interactions; galaxies: spiral; DIGITAL-SKY-SURVEY; STAR-FORMATION RATES; EARLY DATA RELEASE; MERGER RATE; LUMINOSITY FUNCTION; SPIRAL GALAXIES; CLASSIFIED GALAXIES; MASSIVE GALAXIES; REDSHIFT SURVEY; FIELD GALAXIES;

D O I：

10.1111/j.1365-2966.2009.15686.x

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present the largest, most homogeneous catalogue of merging galaxies in the nearby Universe obtained through the Galaxy Zoo project - an interface on the World Wide Web enabling large-scale morphological classification of galaxies through visual inspection of images from the Sloan Digital Sky Survey (SDSS). The method converts a set of visually inspected classifications for each galaxy into a single parameter (the 'weighted-merger-vote fraction,' f(m)) which describes our confidence that the system is part of an ongoing merger. We describe how f(m) is used to create a catalogue of 3003 visually selected pairs of merging galaxies from the SDSS in the redshift range 0.005 < z < 0.1. We use our merger sample and values of f(m) applied to the SDSS Main Galaxy Spectral sample to estimate that the fraction of volume-limited (M(r) < -20.55) major mergers (1/3 < M*(1)/M*(2) < 3) in the nearby Universe is 1-3 x C per cent, where C similar to 1.5 is a correction factor for spectroscopic incompleteness. Having visually classified the morphologies of the constituent galaxies in our mergers, we find that the spiral-to-elliptical ratio of galaxies in mergers is higher by a factor of similar to 2 relative to the global population. In a companion paper, we examine the internal properties of these merging galaxies and conclude that this high spiral-to-elliptical ratio in mergers is due to a longer time-scale over which mergers with spirals are detectable compared to mergers with ellipticals.

引用

页码：1043 / 1056

页数：14

共 68 条

[61] Galaxy Zoo: chiral correlation function of galaxy spins [J].

Slosar, Anze ;

Land, Kate ;

Bamford, Steven ;

Lintott, Chris ;

Andreescu, Dan ;

Murray, Phil ;

Nichol, Robert ;

Raddick, M. Jordan ;

Schawinski, Kevin ;

Szalay, Alex ;

Thomas, Daniel ;

Vandenberg, Jan .

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2009, 392 (03) :1225-1232

[62] Sloan Digital Sky Survey:: Early data release [J].

Stoughton, C ;

Lupton, RH ;

Bernardi, M ;

Blanton, MR ;

Burles, S ;

Castander, FJ ;

Connolly, AJ ;

Eisenstein, DJ ;

Frieman, JA ;

Hennessy, GS ;

Hindsley, RB ;

Ivezic, Z ;

Kent, S ;

Kunszt, PZ ;

Lee, BC ;

Meiksin, A ;

Munn, JA ;

Newberg, HJ ;

Nichol, RC ;

Nicinski, T ;

Pier, JR ;

Richards, GT ;

Richmond, MW ;

Schlegel, DJ ;

Smith, JA ;

Strauss, MA ;

SubbaRao, M ;

Szalay, AS ;

Thakar, AR ;

Tucker, DL ;

Vanden Berk, DE ;

Yanny, B ;

Adelman, JK ;

Anderson, JE ;

Anderson, SF ;

Annis, J ;

Bahcall, NA ;

Bakken, JA ;

Bartelmann, M ;

Bastian, S ;

Bauer, A ;

Berman, E ;

Böhringer, H ;

Boroski, WN ;

Bracker, S ;

Briegel, C ;

Briggs, JW ;

Brinkmann, J ;

Brunner, R ;

Carey, L .

ASTRONOMICAL JOURNAL, 2002, 123 (01) :485-548

[63] Spectroscopic target selection in the Sloan Digital Sky Survey: The main galaxy sample [J].

Strauss, MA ;

Weinberg, DH ;

Lupton, RH ;

Narayanan, VK ;

Annis, J ;

Bernardi, M ;

Blanton, M ;

Burles, S ;

Connolly, AJ ;

Dalcanton, J ;

Doi, M ;

Eisenstein, D ;

Frieman, JA ;

Fukugita, M ;

Gunn, JE ;

Ivezic, Z ;

Kent, S ;

Kim, RSJ ;

Knapp, GR ;

Kron, RG ;

Munn, JA ;

Newberg, HJ ;

Nichol, RC ;

Okamura, S ;

Quinn, TR ;

Richmond, MW ;

Schlegel, DJ ;

Shimasaku, K ;

SubbaRao, M ;

Szalay, AS ;

Berk, DV ;

Vogeley, MS ;

Yanny, B ;

Yasuda, N ;

York, DG ;

Zehavi, I .

ASTRONOMICAL JOURNAL, 2002, 124 (03) :1810-1824

[64] GALACTIC BRIDGES AND TAILS [J].

TOOMRE, A ;

TOOMRE, J .

ASTROPHYSICAL JOURNAL, 1972, 178 (03) :623-666

[65]

VANDERWEL A, 2008, APJ, V13, P675

[66] CORE CONDENSATION IN HEAVY HALOS - 2-STAGE THEORY FOR GALAXY FORMATION AND CLUSTERING [J].

WHITE, SDM ;

REES, MJ .

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 1978, 183 (02) :341-358

[67] Minor galaxy interactions: Star formation rates and galaxy properties [J].

Woods, Deborah Freedman ;

Geller, Margaret J. .

ASTRONOMICAL JOURNAL, 2007, 134 (02) :527-540

[68] The Sloan Digital Sky Survey: Technical summary [J].

York, DG ;

Adelman, J ;

Anderson, JE ;

Anderson, SF ;

Annis, J ;

Bahcall, NA ;

Bakken, JA ;

Barkhouser, R ;

Bastian, S ;

Berman, E ;

Boroski, WN ;

Bracker, S ;

Briegel, C ;

Briggs, JW ;

Brinkmann, J ;

Brunner, R ;

Burles, S ;

Carey, L ;

Carr, MA ;

Castander, FJ ;

Chen, B ;

Colestock, PL ;

Connolly, AJ ;

Crocker, JH ;

Csabai, I ;

Czarapata, PC ;

Davis, JE ;

Doi, M ;

Dombeck, T ;

Eisenstein, D ;

Ellman, N ;

Elms, BR ;

Evans, ML ;

Fan, XH ;

Federwitz, GR ;

Fiscelli, L ;

Friedman, S ;

Frieman, JA ;

Fukugita, M ;

Gillespie, B ;

Gunn, JE ;

Gurbani, VK ;

de Haas, E ;

Haldeman, M ;

Harris, FH ;

Hayes, J ;

Heckman, TM ;

Hennessy, GS ;

Hindsley, RB ;

Holm, S .

ASTRONOMICAL JOURNAL, 2000, 120 (03) :1579-1587

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