Results 81 to 90 of about 469,814 (290)
The SWELLS survey – II. Breaking the disc–halo degeneracy in the spiral galaxy gravitational lens SDSS J2141−0001 [PDF]
, 2011 The degeneracy among the disc, bulge and halo contributions to galaxy rotation curves prevents an understanding of the distribution of baryons and dark matter in disc galaxies.
A. Dutton +10 more
semanticscholar +1 more source
Zoom-in cosmological hydrodynamical simulation of a star-forming barred, spiral galaxy at redshift z=2 [PDF]
, 2019 Accepted for publication in MNRASWe present gas and stellar kinematics of a high-resolution zoom-in cosmological chemodynamical simulation, which fortuitously captures the formation and evolution of a star-forming barred spiral galaxy, from redshift $z ...
Kobayashi, Chiaki +2 more
core +3 more sources
Exploring the evolution of spiral galaxies [PDF]
Monthly Notices of the Royal Astronomical Society, 2002 We have constructed a family of simple models for spiral galaxy evolution to allow us to investigate observational trends in star formation history with galaxy parameters. The models are used to generate broad band colours from which ages and metallicities are derived in the same way as the data.
Eric F. Bell +2 more
openaire +3 more sources
The first detection of Far-Infrared emission associated with an extended HI disk. The case of NGC 891 [PDF]
, 2003 Spiral galaxies in the Local Universe are commonly observed to be embedded in extended disks of neutral hydrogen - the so called ``extended HI disks''.
Alton +38 more
core +1 more source
Magnetic fields in spiral galaxies [PDF]
The Astronomy and Astrophysics Review, 1990 Published in A&ARev (2016) 24 ...
openaire +5 more sources
ON THE FRACTION OF BARRED SPIRAL GALAXIES [PDF]
The Astrophysical Journal, 2010 We investigate the stellar masses of strongly barred spiral galaxies. Our analysis is based on a sample of ~14000 visually-classified nearby galaxies given in Nair & Abraham 2010(a). The fraction of barred spiral galaxies is found to be a strong function of stellar mass and star formation history, with a minimum near the characteristic mass at ...
Preethi Nair, Roberto Abraham
openaire +4 more sources
Breaking the Disk/Halo Degeneracy with Gravitational Lensing [PDF]
, 1999 The degeneracy between the disk and the dark matter contribution to galaxy rotation curves remains an important uncertainty in our understanding of disk galaxies.
Andreas O. Jaunsen +18 more
core +4 more sources
STAR FORMATION EFFICIENCY IN THE BARRED SPIRAL GALAXY NGC 4303 [PDF]
, 2010 We present new 12CO (J = 1 − 0) observations of the barred galaxy NGC 4303 using the Nobeyama 45 m telescope (NRO45) and the Combined Array for Research in Millimeter-wave Astronomy (CARMA).
R. Momose +3 more
semanticscholar +1 more source
Scaling Relations of Spiral Galaxies [PDF]
The Astrophysical Journal, 2007 We construct a large data set of global structural parameters for 1300 field and cluster spiral galaxies and explore the joint distribution of luminosity L, optical rotation velocity V, and disk size R at I- and 2MASS K-bands. The I- and K-band velocity-luminosity (VL) relations have log-slopes of 0.29 and 0.27, respectively with sigma_ln(VL)~0.13, and
Courteau, Stéphane +6 more
openaire +5 more sources
A Dynamic Galaxy: Stellar Age Patterns across the Disk of M101
The Astrophysical JournalUsing deep, narrowband imaging of the nearby spiral galaxy M101, we present stellar age information across the full extent of the disk of M101. Our narrowband filters measure age-sensitive absorption features such as the Balmer lines and the slope of the
Ray Garner III +3 more
doaj +1 more source