A new algorithm for the detection of intercluster galaxy filaments using galaxy orientation alignments

被引：31

作者：

Pimbblet, KA ^{[1
]}

机构：

[1] Univ Queensland, Dept Phys, Brisbane, Qld 4072, Australia

来源：

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 2005年 / 358卷 / 01期

关键词：

methods : statistical; surveys; galaxies : clusters : general; cosmology : observations; large-scale structure of Universe;

D O I：

10.1111/j.1365-2966.2005.08780.x

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present a new algorithm for detecting intercluster galaxy filaments based upon the assumption that the orientations of constituent galaxies along such filaments are non-isotropic. We apply the algorithm to the 2dF Galaxy Redshift Survey catalogue and find that it readily detects many straight filaments between close cluster pairs. At large intercluster separations (> 15 h(-1) Mpc), we find that the detection efficiency falls quickly, as it also does with more complex filament morphologies. We explore the underlying assumptions and suggest that it is only in the case of close cluster pairs that we can expect galaxy orientations to be significantly correlated with filament direction.

引用

页码：256 / 262

页数：7

共 86 条

[11] Galaxy alignments in the Pisces-Perseus Supercluster revisited [J].

Cabanela, JE ;

Aldering, G .

ASTRONOMICAL JOURNAL, 1998, 116 (03) :1094-1117

[12] THE MORPHOLOGY OF CLUSTERS OF GALAXIES [J].

CARTER, D ;

METCALFE, N .

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 1980, 191 (02) :325-337

[13] Where are the baryons? [J].

Cen, RY ;

Ostriker, JP .

ASTROPHYSICAL JOURNAL, 1999, 514 (01) :1-6

[14] Clustering of galaxy clusters in cold dark matter universes [J].

Colberg, JM ;

White, SDM ;

Yoshida, N ;

MacFarland, TJ ;

Jenkins, A ;

Frenk, CS ;

Pearce, FR ;

Evrard, AE ;

Couchman, HMP ;

Efstathiou, G ;

Peacock, JA ;

Thomas, PA .

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2000, 319 (01) :209-214

[15] Linking cluster formation to large-scale structure [J].

Colberg, JM ;

White, SDM ;

Jenkins, A ;

Pearce, FR .

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 1999, 308 (03) :593-598

[16]

COLBERG JM, 2004, IN PRESS MNRAS

[17] The 2dF Galaxy Redshift Survey: spectra and redshifts [J].

Colless, M ;

Dalton, G ;

Maddox, S ;

Sutherland, W ;

Norberg, P ;

Cole, S ;

Bland-Hawthorn, J ;

Bridges, T ;

Cannon, R ;

Collins, C ;

Couch, W ;

Cross, N ;

Deeley, K ;

De Propris, R ;

Driver, SP ;

Efstathiou, G ;

Ellis, RS ;

Frenk, CS ;

Glazebrook, K ;

Jackson, C ;

Lahav, O ;

Lewis, I ;

Lumsden, S ;

Madgwick, D ;

Peacock, JA ;

Peterson, BA ;

Price, I ;

Seaborne, M ;

Taylor, K .

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2001, 328 (04) :1039-1063

[18] The angular correlation function of galaxies from early Sloan Digital Sky Survey data [J].

Connolly, AJ ;

Scranton, R ;

Johnston, D ;

Dodelson, S ;

Eisenstein, DJ ;

Frieman, JA ;

Gunn, JE ;

Hui, L ;

Jain, B ;

Kent, S ;

Loveday, J ;

Nichol, RC ;

O'Connell, L ;

Postman, M ;

Scoccimarro, R ;

Sheth, RK ;

Stebbins, A ;

Strauss, MA ;

Szalay, AS ;

Szapudi, I ;

Tegmark, M ;

Vogeley, MS ;

Zehavi, I ;

Annis, J ;

Bahcall, N ;

Brinkmann, J ;

Csabai, I ;

Doi, M ;

Fukugita, M ;

Hennessy, GS ;

Hindsley, R ;

Ichikawa, T ;

Ivezic, Z ;

Kim, RSJ ;

Knapp, GR ;

Kunszt, P ;

Lamb, DQ ;

Lee, BC ;

Lupton, RH ;

McKay, TA ;

Munn, J ;

Peoples, J ;

Pier, J ;

Rockosi, C ;

Schlegel, D ;

Stoughton, C ;

Tucker, DL ;

Yanny, B ;

York, DG .

ASTROPHYSICAL JOURNAL, 2002, 579 (01) :42-47

[19] Superclustering at redshift z=0.54 [J].

Connolly, AJ ;

Szalay, AS ;

Koo, D ;

Romer, AK ;

Holden, B ;

Nichol, RC ;

Miyaji, T .

ASTROPHYSICAL JOURNAL, 1996, 473 (02) :L67-+

[20] The scale and dispersion of galactic alignments [J].

Coutts, A .

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 1996, 278 (01) :87-94

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