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.
Mahmood Roshan +6 more
semanticscholar +13 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 ...
Heikki Salo +3 more
arxiv +7 more sources
The abundance gradient of NGC1365: evidence for a recently formed bar in an archetypal barred spiral galaxy? [PDF]
, 1997 Emission-line optical spectrophotometry for 55 H ii regions in the prominent southern barred spiral galaxy NGC 1365 is presented. Nebular diagnostic diagrams such as (N ii)/(O ii) and (S ii)/(O ii) versus ((O ii) + (O iii))/Hshow that the H ii regions of
J. R. Roy, J. R. Walsh
semanticscholar +6 more sources
The Frequency of Barred Spiral Galaxies in the Near-Infrared [PDF]
The Astronomical Journal, 2000 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. We find 56% of our sample to be strongly barred at H, while another 16% is weakly barred. Only 27% of our sample is unbarred in the near-infrared.
Paul B. Eskridge +11 more
core +11 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
The TYPHOON Stellar Population Synthesis Survey. I. The Young Stellar Population of the Great Barred Spiral NGC 1365 [PDF]
The Astrophysical Journal, 2023 We analyze TYPHOON long-slit-absorption line spectra of the starburst barred spiral galaxy NGC 1365 obtained with the Progressive Integral Step Method covering an area of 15 kpc ^2 .
Eva Sextl +8 more
doaj +2 more sources
Systematic Variations of CO J = 2−1/1–0 Ratio and Their Implications in The Nearby Barred Spiral Galaxy M83 [PDF]
Astrophysical Journal, 2020 We present spatial variations of the CO J = 2−1/1–0 line ratio ( ) in the barred spiral galaxy M83 using Total Power Array (single-dish telescopes) data from the Atacama Large Millimeter/submillimeter Array.
Jin Koda +20 more
openalex +2 more sources
The Local Galaxy Density and the Bars of Spiral Galaxies [PDF]
The Astrophysical Journal, 1993 Using a variety of parameters of local galaxy density, we have examined the effects of the environmental density on the presence of bar structures in spiral galaxies of various morphological types. For an extensive sample of nearby galaxies, listed in the ``Nearby Galaxies Catalogue'' (Tully, 1988a), we have found that the spirals characterized by a ...
GIURICIN G +3 more
arxiv +5 more sources
The CO-to-H2 Conversion Factor in the Barred Spiral Galaxy M83 [PDF]
The Astrophysical JournalWe analyze the CO-to-H _2 conversion factor ( α _CO ) in the nearby barred spiral galaxy M83. We present new H i observations from the VLA and single-dish GBT in the disk of the galaxy, and combine them with maps of CO(1-0) integrated intensity and dust ...
Amanda M Lee +4 more
doaj +2 more sources