Erratum - Hot Gas in the Nucleus of M82 - 12CO/ and 13CO/ J=3-2 Observations

Details Erratum - Hot Gas in the Nucleus of M82 - 12CO/ and 13CO/ J=3-2 Observations Erratum - Hot Gas in the Nucleus of M82 - 12CO/ and 13CO/ J=3-2 Observations

Feb 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991apj...367..677t&link_type=abstract

Astrophysical Journal, Vol.367, NO. 2/FEB, P. 677, 1991

Astronomy and Astrophysics

Astrophysics

3

Scientific paper

We report observations of the J = 3-2 transitions of ^12^CO and ^13^CO in the starburst galaxy M82. We have detected and mapped the ^12^CO J = 3-2 transition in the nuclear region at 22" resolution. The high main beam brightness temperature of the line, 6.4 K, when compared to the J = 1-0 and J = 2-1 intensities, requires a hot (T_k_ >~ 40 K), moderately optically thin gas. We place a lower limit of ~ 15 off the I_CO_/I__^13^CO_, implying that τ_32_ <~ 6 and τ_10_ < 1 for this warm component. There are ~ 10^8^ M_sun_of warm molecular gas within a radius of 360 pc of M82. The low optical depths and high densities required to excite the J = 3-2 transition may imply sheetlike or filamentary clumping. The pressure in the molecular gas is high, nT ~ 10^6^ - 10^7^ cm^-3^ K. The unusually high pressure and filamentary nature of the interstellar medium in M82 are probably related to winds and shocks originating in the starburst.

Affiliated with

Also associated with

No associations

Rating

Erratum - Hot Gas in the Nucleus of M82 - 12CO/ and 13CO/ J=3-2 Observations 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 Erratum - Hot Gas in the Nucleus of M82 - 12CO/ and 13CO/ J=3-2 Observations, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Erratum - Hot Gas in the Nucleus of M82 - 12CO/ and 13CO/ J=3-2 Observations will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1315810