Evolution of galaxies in groups in the Coma Supercluster

作者: Ruchika Seth , Somak Raychaudhury

DOI: 10.1093/MNRAS/STAA1779

关键词: Star formationGalaxyProtein filamentPhysicsAstrophysicsComa (optics)SuperclusterStarsCluster (physics)Halo

摘要: We take a close look at the galaxies in Coma Supercluster and assess role of environment (in form cluster, group supercluster filament) their evolution, particular examining groups. characterise groups according to intrinsic properties such as richness halo mass, well position proximity two rich clusters, Abell 1656 (Coma) 1367. devise new way characterising local using kernel density estimator. find that apart from dominant effects galaxy effect on is complex combination overdensities various scales, which characterised terms membership groups, also filaments infall regions clusters. Whether gas can be turned into stars depends upon level pre-processing, plays how star formation enhanced given environment. Our results are consistent with accreted cold mode filaments, being made available enhance formation. Finally, we show Abell~1367 end process assembly present, leading heightened activity, contrast Coma-end filament system.

参考文章(110)
Mark Fardal, David H. Weinberg, Neal Katz, Dušan Kereš, Dušan Kereš, Romeel Davé, Galaxies in a simulated ΛCDM Universe – I. Cold mode and hot cores Monthly Notices of the Royal Astronomical Society. ,vol. 395, pp. 160- 179 ,(2009) , 10.1111/J.1365-2966.2009.14541.X
Andrew R. Wetzel, Jeremy L. Tinker, Charlie Conroy, Galaxy evolution in groups and clusters: star formation rates, red sequence fractions and the persistent bimodality Monthly Notices of the Royal Astronomical Society. ,vol. 424, pp. 232- 243 ,(2012) , 10.1111/J.1365-2966.2012.21188.X
P. N. Best, T. M. Heckman, On the fundamental dichotomy in the local radio-AGN population: accretion, evolution and host galaxy properties Monthly Notices of the Royal Astronomical Society. ,vol. 421, pp. 1569- 1582 ,(2012) , 10.1111/J.1365-2966.2012.20414.X
Smriti Mahajan, Chris P. Haines, Somak Raychaudhury, The evolution of dwarf galaxies in the Coma supercluster Monthly Notices of the Royal Astronomical Society. ,vol. 412, pp. 1098- 1104 ,(2011) , 10.1111/J.1365-2966.2010.17977.X
Bret J. Podgorzec, Darren J. Croton, Ramin A. Skibba, Sergey V. Pilipenko, Stefano Zibetti, Christopher J. Conselice, Aaron S. G. Robotham, Sarah Brough, Frazer R. Pearce, Nicolas B. Cowan, David J. Wilman, Ruth Grützbauch, Yun-Young Choi, Stuart I. Muldrew, Ivan K. Baldry, Meghan E. Gray, Youcai Zhang, Xiaohu Yang, Anna Gallazzi, Changbom Park, Hong Bae Ann, I-Hui Li, Measures of Galaxy Environment I - What is "Environment"? Monthly Notices of the Royal Astronomical Society. ,vol. 419, pp. 2670- 2682 ,(2012) , 10.1111/J.1365-2966.2011.19922.X
Kevin A. Pimbblet, Backsplash galaxies in isolated clusters Monthly Notices of the Royal Astronomical Society. ,vol. 411, pp. 2637- 2643 ,(2011) , 10.1111/J.1365-2966.2010.17869.X
Somak Raychaudhury, Kevin A. Pimbblet, Smriti Mahajan, Smriti Mahajan, Plunging fireworks: Why do infalling galaxies light up on the outskirts of clusters? Monthly Notices of the Royal Astronomical Society. ,vol. 427, pp. 1252- 1265 ,(2012) , 10.1111/J.1365-2966.2012.22059.X
Simone M Weinmann, Frank C Van Den Bosch, Xiaohu Yang, HJ Mo, None, Properties of galaxy groups in the Sloan Digital Sky Survey – I. The dependence of colour, star formation and morphology on halo mass Monthly Notices of the Royal Astronomical Society. ,vol. 366, pp. 2- 28 ,(2006) , 10.1111/J.1365-2966.2005.09865.X
J. A. Baldwin, M. M. Phillips, R. Terlevich, Classification parameters for the emission-line spectra of extragalactic objects Publications of the Astronomical Society of the Pacific. ,vol. 93, pp. 5- 19 ,(1981) , 10.1086/130766
M. Doi, M. Fukugita, S. Okamura, E. L. Turner, The distribution of early- and late-type galaxies in the Coma cluster The Astronomical Journal. ,vol. 109, pp. 1490- 1497 ,(1995) , 10.1086/117379