Molecular Gas and Star Formation in Bars of Nearby Spiral Galaxies

@article{Sheth2002MolecularGA,
  title={Molecular Gas and Star Formation in Bars of Nearby Spiral Galaxies},
  author={Kartik Sheth and Stuart N. Vogel and Michael W. Regan and Peter J. Teuben and Andrew I. Harris and Michele D. Thornley},
  journal={The Astronomical Journal},
  year={2002},
  volume={124},
  pages={2581-2599}
}
We compare the distribution of molecular gas and star formation activity in the bar region of six spirals (NGC 2903, 3627, 4321, 5457, 6946, and IC 342) from the BIMA Survey of Nearby Galaxies. The molecular gas, traced using the CO (J = 1–0) emission line, is brightest along the leading edge of the stellar bar in the bar dust lanes. The star formation activity, traced using the Hα emission line, is offset toward the leading side of the CO emission. A cross-correlation analysis shows that (1… Expand

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References

SHOWING 1-10 OF 54 REFERENCES
Global morphology and physical relations between the stars, gas and dust in the disc and arms of M100
We study star formation processes in the disc of the weakly barred grand design spiral galaxy M100 (NGC 4321) from a variety of images tracing recent massive star formation, old and young stars,Expand
NGC 6946: Molecular Spiral Arms Masquerading as a Bar?
NGC 6946 is an example of a galaxy with a barlike molecular gas distribution from which the presence of a stellar bar has been inferred. We present high dynamic range Berkeley-Illinois-Maryland ArrayExpand
Molecular Gas, Dust, and Star Formation in the Barred Spiral NGC 5383*
We have mapped the barred spiral NGC 5383 using the Berkeley-Illinois-Maryland Association millimeter-wave array for observations of CO (J = 1-0), the Palomar 1.5 m telescope for Hα and opticalExpand
CO and Neutral Gas in the Disk of the Spiral Galaxy IC 342
We present "on-the-fly," fully sampled maps of CO(1–0) in the central 15' of the spiral galaxy IC 342. In addition to the bright CO nuclear peak, there is a prominent CO 2' × 5' bar and an extensiveExpand
The ionized gas in the center and in the bar of the spiral galaxy NGC 6946
Spectrophotometric data based on narrow-band images at Hα, Hβ, [O III] λ5007 and [N II] λ6584 for 189 H II regions in the spiral galaxy NGC 6946 are presented, with emphasis on the inner regionsExpand
The molecular interstellar medium and the near-infrared continuum of the barred liner NGC 6764
The millimeter molecular line and near-IR continuum emission in the barred spiral NGC 6764 have been investigated. Comparison of the morphologies indicates that most of the molecular gas isExpand
Molecular Gas Kinematics in Barred Spiral Galaxies
To quantify the effect that bar-driven mass inflow can have on the evolution of a galaxy requires an understanding of the dynamics of the inflowing gas. In this paper we study the kinematics of theExpand
Inner Molecular Rings in Barred Galaxies: BIMA Survey of Nearby Galaxies CO Observations
Although inner star-forming rings are common in optical images of barred spiral galaxies, observational evidence for the accompanying molecular gas has been scarce. In this paper we present images ofExpand
MOLECULAR GASDYNAMICS OF THE YOUNG NUCLEAR STARBURST IN THE BARRED GALAXY NGC 3504
We present CO (J=1→0) interferometry at 2″.5 resolution and Hα CCD observations of the circumnuclear starburst region of the barred spiral galaxy NGC 3504. The CO emission is centrally peaked,Expand
Circumnuclear Star Formation in the Early-Type Resonance Ring Barred Spiral Galaxy NGC 1326
We present multiband WFPC2 images of the nuclear ring of NGC 1326, an early-type southern barred spiral in the nearby Fornax galaxy cluster. The ring is a typical example of a 1 kpc–sizedExpand
...
1
2
3
4
5
...