Galaxy activity in merging binary galaxy clusters

被引：54

作者：

Hwang, Ho Seong ^{[1
]}

Lee, Myung Gyoon ^{[2
]}

机构：

[1] Korea Inst Adv Study, Sch Phys, Seoul 130722, South Korea

[2] Seoul Natl Univ, FPRD, Dept Phys & Astron, Astron Program, Seoul 151742, South Korea

来源：

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 2009年 / 397卷 / 04期

基金：

美国国家科学基金会; 美国国家航空航天局;

关键词：

galaxies: clusters: general; galaxies: clusters: individual: A168; galaxies: clusters: individual: A1750; DIGITAL SKY SURVEY; STAR-FORMING GALAXIES; E+A-GALAXIES; VELOCITY DISPERSIONS; DISTANT CLUSTERS; REDSHIFT SURVEY; RICH CLUSTERS; RAM-PRESSURE; COLD FRONTS; COMA;

D O I：

10.1111/j.1365-2966.2009.15100.x

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present the results of a study of galaxy activity in two merging binary clusters (A168 and A1750) using the Sloan Digital Sky Survey (SDSS) data supplemented with the data in the literature. We have investigated the merger histories of A168 and A1750 by combining the results from a two-body dynamical model and X-ray data. In A168, two subclusters appear to have passed each other and to be coming together from the recent maximum separation. In A1750, two major subclusters appear to have started interaction and to be coming together for the first time. We find an enhanced concentration of the galaxies showing star formation (SF) or active galactic nuclei (AGN) activity in the region between two subclusters in A168, which were possibly triggered by the cluster merger. In A1750, we do not find any galaxies with SF/AGN activity in the region between two subclusters, indicating that two major subclusters are in the early stage of merging.

引用

页码：2111 / 2122

页数：12

共 83 条

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

Adelman-McCarthy, Jennifer K. ;

Agueros, Marcel A. ;

Allam, Sahar S. ;

Prieto, Carlos Allende ;

Anderson, Kurt S. J. ;

Anderson, Scott F. ;

Annis, James ;

Bahcall, Neta A. ;

Bailer-Jones, C. A. L. ;

Baldry, Ivan K. ;

Barentine, J. C. ;

Bassett, Bruce A. ;

Becker, Andrew C. ;

Beers, Timothy C. ;

Bell, Eric F. ;

Berlind, Andreas A. ;

Bernardi, Mariangela ;

Blanton, Michael R. ;

Bochanski, John J. ;

Boroski, William N. ;

Brinchmann, Jarle ;

Brinkmann, J. ;

Brunner, Robert J. ;

Budavari, Tamas ;

Carliles, Samuel ;

Carr, Michael A. ;

Castander, Francisco J. ;

Cinabro, David ;

Cool, R. J. ;

Covey, Kevin R. ;

Csabai, Istvan ;

Cunha, Carlos E. ;

Davenport, James R. A. ;

Dilday, Ben ;

Doi, Mamoru ;

Eisenstein, Daniel J. ;

Evans, Michael L. ;

Fan, Xiaohui ;

Finkbeiner, Douglas P. ;

Friedman, Scott D. ;

Frieman, Joshua A. ;

Fukugita, Masataka ;

Gansicke, Boris T. ;

Gates, Evalyn ;

Gillespie, Bruce ;

Glazebrook, Karl ;

Gray, Jim ;

Grebel, Eva K. ;

Gunn, James E. ;

Gurbani, Vijay K. .

ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES, 2008, 175 (02) :297-313

[2] CLASSIFICATION PARAMETERS FOR THE EMISSION-LINE SPECTRA OF EXTRA-GALACTIC OBJECTS [J].

BALDWIN, JA ;

PHILLIPS, MM .

PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC, 1981, 93 (551) :5-19

[3] ESTIMATION OF STELLAR METAL ABUNDANCE .1. CALIBRATION OF THE CA-II K-INDEX [J].

BEERS, TC ;

PRESTON, GW ;

SHECTMAN, SA ;

KAGE, JA .

ASTRONOMICAL JOURNAL, 1990, 100 (03) :849-883

[4] A DYNAMIC ANALYSIS OF 12 CLUSTERS OF GALAXIES [J].

BEERS, TC ;

FORMAN, W ;

HUCHRA, JP ;

JONES, C ;

GEBHARDT, K .

ASTRONOMICAL JOURNAL, 1991, 102 (05) :1581-1609

[5] GALAXY CLUSTERS WITH MULTIPLE COMPONENTS .1. THE DYNAMICS OF ABELL-98 [J].

BEERS, TC ;

GELLER, MJ ;

HUCHRA, JP .

ASTROPHYSICAL JOURNAL, 1982, 257 (01) :23-&

[6] Group-cluster merging and the formation of starburst galaxies [J].

Bekki, K .

ASTROPHYSICAL JOURNAL, 1999, 510 (01) :L15-L19

[7] An XMM-Newton observation of the dynamically active binary cluster A1750 [J].

Belsole, E ;

Pratt, GW ;

Sauvageot, JL ;

Bourdin, H .

ASTRONOMY & ASTROPHYSICS, 2004, 415 (03) :821-838

[8] The 2dF Galaxy Redshift Survey: the local E+A galaxy population [J].

Blake, C ;

Pracy, MB ;

Couch, WJ ;

Bekki, K ;

Lewis, I ;

Glazebrook, K ;

Baldry, IK ;

Baugh, CM ;

Bland-Hawthorn, J ;

Bridges, T ;

Cannon, R ;

Cole, S ;

Colless, M ;

Collins, C ;

Dalton, G ;

De Propris, R ;

Driver, SP ;

Efstathiou, G ;

Ellis, RS ;

Frenk, CS ;

Jackson, C ;

Lahav, O ;

Lumsden, S ;

Maddox, S ;

Madgwick, D ;

Norberg, P ;

Peacock, JA ;

Peterson, BA ;

Sutherland, W ;

Taylor, K .

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2004, 355 (03) :713-727

[9] Estimating fixed-frame galaxy magnitudes in the Sloan Digital Sky Survey [J].

Blanton, MR ;

Brinkmann, J ;

Csabai, I ;

Doi, M ;

Eisenstein, D ;

Fukugita, M ;

Gunn, JE ;

Hogg, DW ;

Schlegel, DJ .

ASTRONOMICAL JOURNAL, 2003, 125 (05) :2348-2360

[10] An efficient targeting strategy for multiobject spectrograph surveys: The Sloan Digital Sky Survey "tiling'' algorithm [J].

Blanton, MR ;

Lin, H ;

Lupton, RH ;

Maley, FM ;

Young, N ;

Zehavi, I ;

Loveday, J .

ASTRONOMICAL JOURNAL, 2003, 125 (04) :2276-2286

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