ASTE $^{12}$CO($J=$3--2) Survey of Elliptical Galaxies

Details ASTE $^{12}$CO($J=$3--2) Survey of Elliptical Galaxies ASTE $^{12}$CO($J=$3--2) Survey of Elliptical Galaxies

2006-11-20

arxiv.org/abs/astro-ph/0611612v1

Astronomy and Astrophysics

Astrophysics

6 pages, 3 figures, Accepted for publication in PASJ

Scientific paper

We report $^{12}$CO($J=$3--2) observations of 15 nearby elliptical galaxies carried out with the ASTE telescope. Thirteen were selected without regard to the presence of other tracers of cold interstellar matter. CO emission was detected from three of the galaxies, two of which are undetected by IRAS at 100 microns, suggesting that cold ISM may be present in more ellipticals than previously thought. The molecular gas masses range from $2.2 \times 10^6$ to $4.3 \times 10^8$ $M_\odot$. The ratio of the CO(3--2) and (1--0) lines, $R_{31}$, has a lower value for elliptical galaxies than for spiral galaxies except for NGC 855, for which the value is close to the mean for spirals. The molecular gas in NGC 855 has a mean density in the range 300 -- 1000 cm$^{-3}$ adopting a temperature range of 15 -- 100 K.

Affiliated with

Also associated with

No associations

Rating

ASTE $^{12}$CO($J=$3--2) Survey of Elliptical 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 ASTE $^{12}$CO($J=$3--2) Survey of Elliptical Galaxies, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and ASTE $^{12}$CO($J=$3--2) Survey of Elliptical Galaxies will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-120026