Results 101 to 110 of about 593,443 (246)

Galaxy Activity in Merging Binary Galaxy Clusters

, 2009
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.
Adelman-McCarthy, Baldwin, Beers, Beers, Beers, Bekki, Belsole, Blake, Blanton, Blanton, Buote, Burns, Caldwell, Caldwell, Castander, Choi, Cortese, Cortese, De Propris, Donnelly, Dressler, Dressler, Dressler, Dressler, Fadda, Fasano, Ferrari, Forman, Fujita, Fukugita, Girardi, Girardi, Gnedin, Goto, Gunn, Gunn, Hallman, Ho Seong Hwang, Hogg, Hwang, Hwang, Ivezić, Johnston-Hollitt, Jones, Kapferer, Kennicutt, Kewley, Kronberger, Lupton, Markevitch, Martini, Mathis, Mauduit, Miller, Myung Gyoon Lee, Park, Park, Park, Pier, Poggianti, Poggianti, Poole, Quintero, Ramírez, Ricker, Ricker, Schlegel, Smith, Stoughton, Struble, Takizawa, Tegmark, Tomita, Tran, Tran, Tremonti, Tucker, Ulmer, Uomoto, Yan, Yang, Yang, Yang, York, Zabludoff   +84 more
core   +1 more source

Stellar Populations of the Galactic Disk: Metallicity Distribution and Kinematics

Open Astronomy, 2003
Metallicities and distances have been determined from Vilnius photometry for an in situ sample of nearly 650 stars in eight proper-motion fields at high Galactic latitudes.
Bartašiūtė S., Aslan Z., Boyle R. P., Kharchenko N. V., Ossipkov L. P., Sperauskas J.   +5 more
doaj   +1 more source

The growth and assembly of a massive galaxy at z ~ 2

, 2009
We study the stellar mass assembly of the Spiderweb Galaxy (MRC 1138-262), a massive z = 2.2 radio galaxy in a protocluster and the probable progenitor of a brightest cluster galaxy.
A. W. Zirm, Benítez, Bertin, Binney, Blakeslee, Boylan-Kolchin, Bruzual, Bruzual, Chabrier, Chandraseker, Coe, Conroy, Conroy, De Lucia, di Matteo, Font, G. K. Miley, Gallagher, Guo, H. J. A. Röttgering, Hatch, Ivison, J. D. Kurk, Kodama, Kriek, Kurk, Malumuth, Maraston, Mihos, Miley, Miley, N. A. Hatch, Nesvadba, Overzier, Papovich, Pentericci, Pentericci, R. A. Overzier, Reddy, Salim, Saro, Saro, Sawicki, Schlegel, Seymour, Shapley, Spergel, Stevens, Venemans, Villar-Martin, Villar-Martín, Zirm, Zirm   +52 more
core   +1 more source

Geometrized Vacuum Physics. Part XII: Naked "Galaxies" – "Particles" of Dark Matter?

Avances en Ciencias e Ingeniería
This article is the twelfth part of the scientific project under the general title "Geometrized Vacuum Physics Based on the Algebra of Signature " (Batanov-Gaukhman, 2023a, 2023b, 2023c, 2023d, 2023e, 2023f, 2024a, 2024b, 2024c, 2024d, 2024e).
Mikhail Batanov-Gaukhman
doaj   +1 more source

The curious case of J113924.74+164144.0: a possible new group of galaxies at z = 0.0693

, 2010
J113924.74+164144.0 is an interesting galaxy at z = 0.0693, i.e. D_L ~ 305 Mpc, with tidal-tail-like extended optical features on both sides. There are two neighbouring galaxies, a spiral galaxy J113922.85+164136.3 which has a strikingly similar 'tidal ...
Adelman-McCarthy, Auld, Barnes, Briggs, Carilli, Catinella, Chandreyee Sengupta, Chengalur, Cortese, De Bruyn, Giovanelli, Giovanelli, Haynes, Hota, Howard, Kanekar, Kantharia, Lah, Lah, Lang, N. G. Kantharia, Nirupam Roy, Rots, Sengupta, Verheijen, Verheijen, York, York, Zwaan, Zwaan, Zwaan   +30 more
core   +1 more source

Determination of the dynamical structure of galaxies using optical spectra

, 1998
Galaxy spectra are a rich source of kinematical information since the shapes of the absorption lines reflect the movement of stars along the line-of-sight.
De Rijcke, S., Dejonghe, H.
core   +2 more sources

The GOODS-MUSIC sample: a multicolour catalog of near-IR selected galaxies in the GOODS-South field [PDF]

, 2006
A. Grazian, A. Fontana, C. De Santis, M. Nonino, S. Salimbeni, E. Giallongo, S. Cristiani, S. Gallozzi, E. Vanzella   +8 more
openalex   +1 more source

Galaxy collisions

Physics Reports, 1999
Theories of how galaxies, the fundamental constituents of large-scale structure, form and evolve have undergone a dramatic paradigm shift in the last few decades. Earlier views were of rapid, early collapse and formation of basic structures, followed by slow evolution of the stellar populations and steady buildup of the chemical elements.
openaire   +2 more sources

Galaxy Mass Distribution from Galaxy-Galaxy Gravitational Lensing [PDF]

Symposium - International Astronomical Union, 1987
The average gravitational lens distortion of background galaxy images by foreground galaxies is an independent, non-kinematical measurement of galaxy mass distribution M(r)/r (Tyson, et al. 1984). The upper limit we obtained for the equivalent circular velocity, while small compared with some heavy halo models, is consistent with dynamical estimates ...
openaire   +1 more source

From Galaxy‐Galaxy Lensing to Cosmological Parameters

The Astrophysical Journal, 2006
Galaxy-galaxy lensing measures the mean excess surface density DS(r) around a sample of lensing galaxies. We develop a method for combining DS(r) with the galaxy correlation function xi_gg(r) to constrain Omega_m and sigma_8, going beyond the linear bias model to reach the level of accuracy demanded by current and future measurements. We adopt the halo
Yoo, J, Tinker, JL, Weinberg, DH, Zheng, Z, Katz, N, Dave, R   +5 more
openaire   +4 more sources