Results 1 to 10 of about 180,274 (231)
The Frequency of Barred Spiral Galaxies in the Near-IR [PDF]
The Astronomical Journal, 1999 We have determined the fraction of barred galaxies in the H-band for a statistically well-defined sample of 186 spirals drawn from the Ohio State University Bright Spiral Galaxy survey.
Alice C. Quillen +22 more
core +12 more sources
Barred spiral galaxies in modified gravity theories [PDF]
Monthly Notices of the Royal Astronomical Society, 2021 When bars form within galaxy formation simulations in the standard cosmological context, dynamical friction with dark matter (DM) causes them to rotate rather slowly.
M. Roshan +6 more
semanticscholar +13 more sources
Star Formation Activity of Barred Spiral Galaxies [PDF]
The Astrophysical Journal, 2017 We study the star formation activity of nearby galaxies with bars using a sample of late-type galaxies at and from the Sloan Digital Sky Survey. We compare the physical properties of strongly and weakly barred galaxies with those of non-barred galaxies ...
Eunbin Kim +6 more
semanticscholar +8 more sources
A Milky Way-like barred spiral galaxy at a redshift of 3. [PDF]
Nature, 2023 Costantin L +32 more
europepmc +5 more sources
The Distribution of Bar and Spiral Strengths in Disk Galaxies [PDF]
Astron.J.130:506-523,2005, 2005 The distribution of bar strengths in disk galaxies is a fundamental property of the galaxy population that has only begun to be explored. We have applied the bar/spiral separation method of Buta, Block, and Knapen to derive the distribution of maximum relative gravitational bar torques, Q_b, for 147 spiral galaxies in the statistically well-defined ...
Aguerri J. A. L. +15 more
arxiv +7 more sources
On wave dark matter in spiral and barred galaxies [PDF]
Journal of Cosmology and Astroparticle Physics, 2015 We recover spiral and barred spiral patterns in disk galaxy simulations with a Wave Dark Matter (WDM) background (also known as Scalar Field Dark Matter (SFDM), Ultra-Light Axion (ULA) dark matter, and Bose-Einstein Condensate (BEC) dark matter). Here we
L. Martinez-Medina, H. Bray, T. Matos
semanticscholar +7 more sources
J0107a: A Barred Spiral Dusty Star-forming Galaxy at z = 2.467 [PDF]
The Astrophysical Journal Letters, 2023 Dusty star-forming galaxies (DSFGs) are among the most massive and active star-forming galaxies during the cosmic noon. Theoretical studies have proposed various formation mechanisms of DSFGs, including major merger-driven starbursts and secular star ...
Shuo Huang +9 more
doaj +2 more sources
Spiral arm formation mechanisms: Spiral Structure in Barred galaxies. Observational constraints to spiral arm formation mechanisms [PDF]
MNRAS, 2019, 482, 5362, 2019 A method which we have developed for determining corotation radii, has allowed us to map in detail the radial resonant structures of barred spiral galaxies. Here we have combined this information with new determinations of the bar strength and the pitch angle of the innermost segment of the spiral arms to find relationships between these parameters of ...
J. Font, J. Beckman, P. James, P. Patsis
arxiv +3 more sources
Stellar Bars in Isolated Gas-rich Spiral Galaxies Do Not Slow Down [PDF]
The Astrophysical Journal, 2023 Elongated bar-like features are ubiquitous in galaxies, occurring at the centers of approximately two-thirds of spiral disks in the nearby Universe. Due to gravitational interactions between the bar and the other components of galaxies, it is expected ...
Angus Beane +8 more
doaj +2 more sources
Effect of bars on the galaxy properties [PDF]
A&A 595, A63 (2016), 2016 Aims: With the aim of assessing the effects of bars on disc galaxy properties, we present an analysis of different characteristics of spiral galaxies with strong, weak and without bars. Method: We identified barred galaxies from the Sloan Digital Sky Survey.
Alonso, Sol +2 more
arxiv +7 more sources