Results 31 to 40 of about 195,277 (271)

Weak Lensing by Galaxies in Groups and Clusters: I.--Theoretical Expectations [PDF]

, 2006
Galaxy-galaxy lensing is rapidly becoming one of the most promising means to accurately measure the average relation between galaxy properties and halo mass. In order to obtain a signal of sufficient signal-to-noise, one needs to stack many lens galaxies
Bartelmann, Bartelmann, Benson, Berlind, Berlind, Brainerd, Brainerd, Bullock, Cole, Conroy, Conroy, Cooray, Cooray, Croton, Dahle, De Lucia, Dell'Antonio, Eke, Fardal, Fischer, Frank C. Van Den Bosch, Gao, Gentile, Gentile, Griffiths, Guzik, Guzik, H. J. Mo, Hayashi, Hoekstra, Hoekstra, Hoekstra, Hudson, Jing, Jing, Jing, Jing, Kang, Katz, Kauffmann, Kauffmann, Kay, Kleinheinrich, Klypin, Kravtsov, Lin, Lu, M. Meneghetti, Mandelbaum, Mandelbaum, Mandelbaum, Mandelbaum, McKay, McKay, Meneghetti, Miralda-Escudé, Mo, Mo, Moore, Natarajan, Natarajan, Natarajan, Navarro, Navarro, Parker, Power, Prada, Reed, Sand, Schneider, Seljak, Sheldon, Simon, Simone M. Weinmann, Smith, Somerville, Spergel, Springel, Springel, Swaters, Tasitsiomi, Tinker, Tyson, Vale, Vale, Van Den Bosch, Van Den Bosch, Van Den Bosch, Van Den Bosch, Van Den Bosch, Van Den Bosch, Van Den Bosch, Wechsler, Weinberg, Weinmann, White, White, Wilson, Wright, Xiaohu Yang, Y. P. Jing, Yang, Yang, Yang, Yang, Yang, Yoo, Zaritsky, Zhao, Zhao, Zhao, Zheng   +111 more
core   +2 more sources

Implications of the Milky Way Travel Velocity for Dynamical Mass Estimates of the Local Group

The Astrophysical Journal, 2022
The total mass of the Local Group (LG) is a fundamental quantity that enables interpreting the orbits of its constituent galaxies and placing the LG in a cosmological context.
Katie Chamberlain, Adrian M. Price-Whelan, Gurtina Besla, Emily C. Cunningham, Nicolás Garavito-Camargo, Jorge Peñarrubia, Michael S. Petersen   +6 more
doaj   +1 more source

Mass segregation trends in SDSS galaxy groups [PDF]

, 2014
It has been shown that galaxy properties depend strongly on their host environment. In order to understand the relevant physical processes driving galaxy evolution it is important to study the observed properties of galaxies in different environments ...
Evans, Fraser A., Joshi, Gandhali D., Parker, Laura C., Roberts, Ian D.   +3 more
core   +1 more source

Hot Atmospheres of Galaxies, Groups, and Clusters of Galaxies [PDF]

, 2020
Accepted for publication in the book "Reviews in Frontiers of Modern Astrophysics: From Space Debris to Cosmology" (eds Kabath, Jones and Skarka; publisher Springer Nature) funded by the European Union Erasmus+ Strategic Partnership grant "Per Aspera Ad Astra Simul" 2017-1-CZ01-KA203 ...
Werner, Norbert, Mernier, François
openaire   +2 more sources

Galaxy groups in the 2dF Galaxy Redshift Survey: a compactness analysis of groups [PDF]

Monthly Notices of the Royal Astronomical Society, 2003
A comprehensive study on compactness has been carried out on the 2dF Galaxy Group Catalogue constructed by Merchán & Zandivarez. The compactness indexes defined in this work take into account different geometrical constraints in order to explore a wide range of possibilities.
Zandivarez, A., Dominguez, M. J. L., Ragone, C. J., Muriel, H., Martinez, H. J.   +4 more
openaire   +2 more sources

Studying the Patterns of the Universe

Open Astronomy, 2011
The SDSS galaxy catalog is one of the best databases for galaxy distribution studies. The SDSS DR8 data is used to construct the galaxy cluster catalog.
Sepp T., Tempel E., Gramann M., Nurmi P., Haupt M.   +4 more
doaj   +1 more source

Shakhbazian compact galaxy groups. II. Photometric and spectroscopic study of ShCG 376 [PDF]

, 2003
The results of the redshift measurements and of the detailed surface photometry in BVR of the compact group ShCG 376 are presented. The radial velocity dispersion, the virial mass, the total luminosity, the M/L ratio, and the crossing time of the group ...
Alonso, Amirkhanian, Arp, Baier, Burbidge, del Olmo, di Tullio, G. H. Tovmassian, H. M. Tovmassian, H. Tiersch, Hickson, Kirshner, Kodaira, Kodaira, Kodaira, Lynds, Mirzoyan, Moles, Robinson, Schlegel, Schombert, Shakhbazian, Stoll, Sulentic, Sulentic, Tiersch, Tiersch, Tiersch, Tovmassian, Tovmassian, Tovmassian, V. H. Chavushyan, Zickgraf   +32 more
core   +2 more sources

Galaxy groups in the 2dF Galaxy Redshift Survey: galaxy spectral type segregation in groups [PDF]

Monthly Notices of the Royal Astronomical Society, 2002
3 figures replaced, accepted for publication in ...
Dominguez, M. J., Zandivarez, A. A., Martinez, H. J., Merchan, M. E., Muriel, H., Lambas, D. G.   +5 more
openaire   +2 more sources

The 2dF Galaxy Redshift Survey: the clustering of galaxy groups [PDF]

Monthly Notices of the Royal Astronomical Society, 2004
16 pages.
Padilla, Nelson D., Baugh, Carlton M., Eke, Vincent R., Norberg, Peder, Cole, Shaun, Frenk, Carlos S., Croton, Darren, Baldry, Ivan K., Bland-Hawthorn, Joss, Bridges, Terry, Cannon, Russell, Colless, Matthew, Collins, Chris, Couch, Warrick, Dalton, Gavin, De Propris, Roberto, Driver, Simon P., Efstathiou, George, Ellis, Richard S., Glazebrook, Karl, Jackson, Carole, Lahav, Ofer, Lewis, Ian, Lumsden, Stuart, Maddox, Steve, Madgwick, Darren, Peacock, John A., Peterson, Bruce A., Sutherland, Will, Taylor, Keith   +29 more
openaire   +6 more sources

COMPARISON OF OPTICAL AND X-RAY MASS ESTIMATES OF THE CHANDRA GALAXY CLUSTERS AT Z < 0.1

Odessa Astronomical Publications, 2013
We used the optical data taken from SDSS DR7 galaxy and group catalog to determine the optical mass of 37 nearer Chandra galaxy clusters for comparison with the X-ray mass estimates.
Iu. V. Babyk, I. B. Vavilova
doaj   +1 more source