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

[11]

Buote DA, 2002, ASTROPHYS SPACE SC L, V272, P79

[12] THE COMA CLUSTER AFTER LUNCH - HAS A GALAXY GROUP PASSED THROUGH THE CLUSTER CORE [J].

BURNS, JO ;

ROETTIGER, K ;

LEDLOW, M ;

KLYPIN, A .

ASTROPHYSICAL JOURNAL, 1994, 427 (02) :L87-L90

[13] STAR-FORMATION IN EARLY-TYPE GALAXIES IN THE COMA CLUSTER [J].

CALDWELL, N ;

ROSE, JA ;

SHARPLES, RM ;

ELLIS, RS ;

BOWER, RG .

ASTRONOMICAL JOURNAL, 1993, 106 (02) :473-&

[14] The Butcher-Oemler effect at low redshift: Spectroscopy of five nearby clusters of galaxies [J].

Caldwell, N ;

Rose, JA .

ASTRONOMICAL JOURNAL, 1997, 113 (02) :492-+

[15] The first hour of extragalactic data of the Sloan Digital Sky Survey spectroscopic commissioning: The Coma cluster [J].

Castander, FJ ;

Nichol, RC ;

Merrelli, A ;

Burles, S ;

Pope, A ;

Connolly, AJ ;

Uomoto, A ;

Gunn, JE ;

Anderson, JE ;

Annis, J ;

Bahcall, NA ;

Boroski, WN ;

Brinkmann, J ;

Carey, L ;

Crocker, JH ;

Csabai, I ;

Doi, M ;

Frieman, JA ;

Fukugita, M ;

Friedman, SD ;

Hilton, EJ ;

Hindsley, RB ;

Ivezic, Z ;

Kent, S ;

Lamb, DQ ;

Leger, RF ;

Long, DC ;

Loveday, J ;

Lupton, RH ;

Macgillivray, H ;

Meiksin, A ;

Munn, JA ;

Newcomb, M ;

Okamura, S ;

Owen, R ;

Pier, JR ;

Rockosi, CM ;

Schlegel, DJ ;

Schneider, DP ;

Seigmund, W ;

Smee, S ;

Snir, Y ;

Starkman, L ;

Stoughton, C ;

Szokoly, GP ;

Stubbs, C ;

Rao, MS ;

Szalay, A ;

Thakar, AR ;

Tremonti, C .

ASTRONOMICAL JOURNAL, 2001, 121 (05) :2331-2357

[16] Internal and collective properties of galaxies in the Sloan Digital Sky Survey [J].

Choi, Yun-Young ;

Park, Changbom ;

Vogeley, Michael S. .

ASTROPHYSICAL JOURNAL, 2007, 658 (02) :884-897

[17] Witnessing galaxy preprocessing in the local Universe: the case of a star-bursting group falling into Abell 1367 [J].

Cortese, L ;

Gavazzi, G ;

Boselli, A ;

Franzetti, P ;

Kennicutt, RC ;

O'Neil, K ;

Sakai, S .

ASTRONOMY & ASTROPHYSICS, 2006, 453 (03) :847-861

[18] Multiple merging in the Abell cluster 1367 [J].

Cortese, L ;

Gavazzi, G ;

Boselli, A ;

Iglesias-Paramo, J ;

Carrasco, L .

ASTRONOMY & ASTROPHYSICS, 2004, 425 (02) :429-441

[19] The 2dF Galaxy Redshift Survey: the blue galaxy fraction and implications for the Butcher-Oemler effect [J].

De Propris, R ;

Colless, M ;

Peacock, JA ;

Couch, WJ ;

Driver, SP ;

Balogh, ML ;

Baldry, IK ;

Baugh, CM ;

Bland-Hawthorn, J ;

Bridges, T ;

Cannon, R ;

Cole, S ;

Collins, C ;

Cross, N ;

Dalton, G ;

Efstathiou, G ;

Ellis, RS ;

Frenk, CS ;

Glazebrook, K ;

Hawkins, E ;

Jackson, C ;

Lahav, O ;

Lewis, I ;

Lumsden, S ;

Maddox, S ;

Madgwick, D ;

Norberg, P ;

Percival, W ;

Peterson, BA ;

Sutherland, W ;

Taylor, K .

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2004, 351 (01) :125-132

[20] Merging binary clusters [J].

Donnelly, RH ;

Forman, W ;

Jones, C ;

Quintana, H ;

Ramirez, A ;

Churazov, E ;

Gilfanov, M .

ASTROPHYSICAL JOURNAL, 2001, 562 (01) :254-265

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