Interstellar Gas in Low Mass Virgo Cluster Spiral Galaxies

Astronomy and Astrophysics – Astrophysics

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

24 pages, Latex, 2 Figures, 6 Tables To appear in the Astronomical Journal, July 1997

Scientific paper

10.1086/118460

We have measured the strengths of the [C II] 158 micron, [N II] 122 micron, and CO (1 - 0) lines from five low blue luminosity spiral galaxies in the Virgo Cluster, using the Infrared Space Observatory and the NRAO 12m millimeter telescope. Two of the five galaxies have high L([C II)]/L(CO) and L(FIR)/L(CO) ratios compared to higher mass spirals. These two galaxies, NGC 4294 and NGC 4299, have L([C II])/L(CO) ratios of >14,300 and 15,600, respectively, which are similar to values found in dwarf irregular galaxies. This is the first time that such enhanced L([C II])/L(CO) ratios have been found in spiral galaxies. This result may be due to low abundances of dust and heavy elements, which can cause the CO (1 - 0) measurements to underestimate the molecular gas content. Another possibility is that radiation from diffuse HI clouds may dominate the [C II] emission from these galaxies. Less than a third of the observed [C II] emission arises from HII regions.

No associations

LandOfFree

Say what you really think

Search LandOfFree.com for scientists and scientific papers. Rate them and share your experience with other people.

Rating

Interstellar Gas in Low Mass Virgo Cluster Spiral Galaxies does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Interstellar Gas in Low Mass Virgo Cluster Spiral Galaxies, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Interstellar Gas in Low Mass Virgo Cluster Spiral Galaxies will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFWR-SCP-O-489700

All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.