Dense Molecular Gas in Lenticular Galaxies

Details Dense Molecular Gas in Lenticular Galaxies Dense Molecular Gas in Lenticular Galaxies

2002-06-04

arxiv.org/abs/astro-ph/0206041v1

Astronomy and Astrophysics

Astrophysics

8 pages, 2 figures, to be published in PASJ (Publications of the Astronomical Society of Japan) Vol.54, No.4

Scientific paper

We made CO and HCN simultaneous observations of lenticular galaxies, NGC 404, NGC 3593 and NGC 4293, and detected HCN emission in NGC 3593 and NGC 4293 as well as CO in all the galaxies. The I(HCN)/I(CO) ratios were 0.025+-0.006 and 0.066+-0.005 in NGC 3593 and NGC 4293, respectively, which are comparable to the late-type spiral galaxies. The average of the I(HCN)/I(CO) ratios at the center of 12 nearby spiral galaxies including late-type was 0.055+-0.028. The line profiles of CO and HCN emission showed different shape in both galaxies. The HCN peaks were not at the systemic velocity of these galaxies, while the CO peaks were near the systemic velocity. These results suggest that the fraction of the dense molecular gas is high around the center in these galaxies.

Affiliated with

Also associated with

No associations

Rating

Dense Molecular Gas in Lenticular 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 Dense Molecular Gas in Lenticular Galaxies, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dense Molecular Gas in Lenticular Galaxies will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-96203