Results 41 to 50 of about 46,922 (223)

TDCOSMO

Astronomy & Astrophysics
Spatially resolved stellar kinematics has become a key ingredient in time-delay cosmography to break the mass-sheet degeneracy in the mass profile and in turn provide a precise constraint on the Hubble constant and other cosmological parameters.
Shajib Anowar J., Treu Tommaso, Suyu Sherry H., Law David, Yıldırım Akın, Cappellari Michele, Galan Aymeric, Knabel Shawn, Wang Han, Birrer Simon, Courbin Frédéric, Fassnacht Christopher D., Frieman Joshua A., Melo Alejandra, Morishita Takahiro, Mozumdar Pritom, Sluse Dominique, Stiavelli Massimo   +17 more
doaj   +1 more source

Maturing Satellite Kinematics into a Competitive Probe of the Galaxy-Halo Connection

, 2018
The kinematics of satellite galaxies moving in a dark matter halo are a direct probe of the underlying gravitational potential. Thus, the phase-space distributions of satellites represent a powerful tool to determine the galaxy-halo connection from ...
Bosch, Frank C. van den, Lange, Johannes U., Villarreal, Antonio S., Wang, Kuan, Zentner, Andrew R.   +4 more
core   +1 more source

The benchmark black hole in NGC 4258: dynamical models from high-resolution two-dimensional stellar kinematics [PDF]

, 2015
NGC 4258 is the galaxy with the most accurate (maser-based) determination for the mass of the supermassive black hole (SMBH) in its nucleus. In this work we present a two-dimensional mapping of the stellar kinematics in the inner 3.0 x 3.0 arcsec = 100 x
Bergmann, Thaisa Storchi, Cappellari, Michele, Drehmer, Daniel Alf, Ferrari, Fabricio, Riffel, Rogemar A.   +4 more
core   +2 more sources

Galaxy Kinematics with SALT

, 2004
8 pages with 6 embedded figures using saltwshop.sty; to appear in "The First Robert Stobie SALT Workshop", Science with SALT Workshop Proceedings, Vol. 2, ed. D. A. H.
Bershady, Matthew A., Verheijen, Marc A. W., Andersen, David R., Swaters, Rob A., Westfall, Kyle B.   +4 more
openaire   +2 more sources

A group of merging galaxies falling into Abell 2142

Astronomy & Astrophysics
Galaxy clusters produce a very hostile environment for galaxies: their gas gets stripped by ram pressure, they undergo galaxy interactions, and their star formation is quenched.
Anitha Shaji Aashiya, Hallé Anaëlle, Gasymov Damir, Melchior Anne-Laure, Combes Françoise, Cattaneo Andrea   +5 more
doaj   +1 more source

Kinematic Profiles of SO Galaxies

The Astronomical Journal, 1997
Stellar rotation curves, velocity dispersion profiles, and line-of-sight velocity distributions (LOSVD) as derived from absorption lines are presented for the major axes of 18 S0 and two elliptical galaxies. Ionized gas rotation curves and dispersions were measured from the [O III] 5007 Angstrom emission line in the 9 S0 galaxies displaying this ...
openaire   +2 more sources

SCG0018-4854: a young and dynamic compact group I. Kinematical analysis

, 2009
Compact groups of galaxies are in particular good laboratories for studying galaxy interactions and their effects on the evolution of galaxies due to their high density and low velocity dispersion. SCG0018-4854 is a remarkably high galaxy density and low
A. Iovino, Bautista, Belsole, Bomans, Boselli, Ciroi, Coccato, Cooper, Corsini, Coziol, Coziol, Crowther, Dale, Danks, Das, de Carvalho, Dopita, Díaz, E. Pompei, Fraternali, Gallart, Gerin, Governato, Heckman, Hickson, Hickson, Higdon, Keel, Kraemer, Kronberger, Kuijken, Lindblad, Marquez, Mendes de Oliveira, Mendes de Oliveira, Noguchi, Osterbrock, Pedrosa, Pompei, Ribeiro, Roche, Rose, Rubin, Rupke, Rupke, S. Temporin, Schaerer, Shopbell, Strickland, Sulentic, Tonry, Torres-Flores, Trinchieri, Tschöke, V. Presotto, Veilleux, Veilleux, Verdes-Montenegro   +57 more
core   +1 more source

Dwarf spheroidal galaxy kinematics and spiral galaxy scaling laws [PDF]

Monthly Notices of the Royal Astronomical Society, 2011
Los estudios cinemáticos de los satélites esferoidales enanos (dSph) de la Vía Láctea están revelando indicios tentadores sobre la estructura de los halos de materia oscura (DM) en el extremo de baja masa de la función de luminosidad de la galaxia. En el extremo brillante, el modelado de galaxias espirales ha demostrado que sus curvas de rotación son ...
Paolo Salucci, M. I. Wilkinson, Matthew G. Walker, G. Gilmore, Eva K. Grebel, Andreas Koch, Christiane Frigerio Martins, Rosemary F. Ġ. Wyse   +7 more
openaire   +3 more sources

The Hubble sequence: just a vestige of merger events? [PDF]

, 2009
Abr: We investigate whether the Hubble sequence can be reproduced by the relics of merger events. We verify that, at zmed=0.65, the abundant population of anomalous starbursts is mainly linked to the local spirals.
Alonso-Herrero, Barnes, Barnes, Barnes, Bell, Bell, Berentzen, Brinchmann, Brown, Bruzual, Carignan, Conselice, Conselice, Davidge, Davies, Dekel, Donner, E. Athanassoula, Eggen, Erb, F. Hammer, Fall, Flores, Gao, Gerin, Goldreich, Goldreich, Governato, H. Flores, Hammer, Hammer, Hammer, Hammer, Hammer, Heckman, Hopkins, Hopkins, Hopkins, Ibata, Jiang, Jogee, Kennicutt, Kroupa, Liang, Lilly, Lotz, Lotz, M. Puech, M. Rodrigues, Maller, Maller, Maraston, Marcillac, Mo, Mouhcine, Nakamura, Neff, Neichel, Noguchi, Peebles, Peirani, Poggianti, Puech, Puech, Puech, Puech, Puech, R. Delgado, Ravikumar, Rawat, Rawat, Robaina, Robertson, Rodrigues, Ryan, Schiminovich, Sheth, Silk, Springel, Springel, Steinmetz, Steinmetz, Stewart, Toomre, Toth, Tutukov, van den Bergh, Van den Bergh, White, Y. B. Yang, Yang, Yang, Zheng   +92 more
core   +3 more sources

Early-type disk galaxies: Structure and kinematics [PDF]

Astronomy Reports, 2008
Spectroscopic observations of three lenticular (S0) galaxies (NGC 1167, NGC 4150, and NGC 6340) and one SBa galaxy (NGC 2273) have been taken with the 6-m telescope of the Special AstrophysicalObservatory of the Russian Academy of Sciences aimed to study the structure and kinematic properties of early-type disk galaxies.
Zasov, A. V., Moiseev, A. V., Khoperskov, A. V., Sidorova, E. A.   +3 more
openaire   +2 more sources