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 +6 more
doaj +1 more source
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. +5 more
openaire +2 more sources
A New Galaxy in the Local Group: the Antlia Dwarf Galaxy [PDF]
, 1997 We report the discovery of new member of the Local Group in the constellation of Antlia. Optically the system appears to be a typical dwarf spheroidal galaxy of type dE3.5 with no apparent young blue stars or unusual features.
Hau, George K. T. +2 more
core +2 more sources
Deep Chandra observations of the stripped galaxy group falling into Abell 2142 [PDF]
, 2017 In the local Universe, the growth of massive galaxy clusters mainly operates through the continuous accretion of group-scale systems. The infalling group in Abell 2142 is the poster child of such an accreting group, and as such, it is an ideal target to ...
D. Eckert +12 more
semanticscholar +1 more source
Optical observations of M81 galaxy group in narrow band [SII] and Hα filters: Holmberg IX [PDF]
Serbian Astronomical Journal, 2009 We present observations of the nearby tidal dwarf galaxy Holmberg IX in M81 galaxy group in narrow band [SII] and Hα filters, carried out in March and November 2008 with the 2m RCC telescope at NAO Rozhen, Bulgaria.
Arbutina B. +5 more
doaj +1 more source
X-ray analysis of the galaxy group UGC 03957 beyond R200 with Suzaku [PDF]
, 2016 Context. In the last few years, the outskirts of galaxy clusters have been studied in detail and the analyses have brought up interesting results such as indications of possible gas clumping and the breakdown of hydrostatic, thermal, and ionization ...
Sophia Thölken +4 more
semanticscholar +1 more source
Redshifts of the Gravitational Lenses MG0414+0534 and MG0751+2716 [PDF]
, 1998 We report redshifts in two gravitational lens systems, MG0414+0534 and MG0751+2716. The lens galaxy in MG0414+0534 lies at z_l=0.9584+/-0.0002. The luminosity and extreme red color of the lens are then typical of a passively evolving, early-type, ~2L ...
Christopher S. Kochanek +5 more
core +2 more sources
Friends-of-friends galaxy group finder with membership refinement. Application to the local Universe [PDF]
, 2016 Context. Groups form the most abundant class of galaxy systems. They act as the principal drivers of galaxy evolution and can be used as tracers of the large-scale structure and the underlying cosmology.
E. Tempel +8 more
semanticscholar +1 more source
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
H0LiCOW - II. Spectroscopic survey and galaxy-group identification of the strong gravitational lens system HE 0435-1223 [PDF]
, 2016 Galaxies located in the environment or along the line of sight towards gravitational lenses can significantly affect lensing observables, and can lead to systematic errors on the measurement of H-0 from the time-delay technique. We present the results of
D. Sluse +17 more
semanticscholar +1 more source