Other
Scientific paper
Dec 1995
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995aas...187.4908p&link_type=abstract
American Astronomical Society, 187th AAS Meeting, #49.08; Bulletin of the American Astronomical Society, Vol. 27, p.1356
Other
Scientific paper
We present the high-resolution (6.6x3.7 aresec) CS J=2->1 map of the nearby starburst galaxy NGC 253, made with the 6-element BIMA array. Dense gas traced by the CS transition resides within a radius of ~ 20 arcsec ( ~ 290 pc) of the nucleus. Typical gas density and CS column density is of the order of 10(4) cm(-3) and 10(15) cm(-2) respectively. The dense gas structure revealed by its kinematic appears to include a inner torus, a pair of spin-up arms and an outer gas belt. The inner torus has a radius of ~ 6 arcsec (87 pc) and an average rotation velocity of ~ 63 kms(-1) ; the spin-up arms have a pitch angle of ~ 17(o) , eclipsing the rotating torus in one end and connecting to the outer gas belt in the other end. Gas flows along the arms at a speed of ~ 65 kms(-1) from the outer gas belt to the inner torus. The outer gas belt starts at a radius of ~ 14 arcsec (204 pc). It rotates at a velocity of ~ 50 kms(-1) , and at the same time collapse inward at a speed of 65 kms(-1) . Clearly, the spin-up arms are playing a very important role in channelling in gas to the nucleus from outer regions that fuels the starburst. This research was performed at the Laboratory for Astronomical Imaging at the University of Illinois, and is completed at the Jet Propulsion Laboratory, California Institute of Technology, where R.P. holds a National Research Council Associateship.
Lo Kwok Yung
Peng Richard
Sutton Edmund C.
Whiteoak John B.
Zhou Shuhua
No associations
LandOfFree
Dense Molecular Gas Distribution in the Nuclear Region of Starburst Galaxy NGC 253 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 Distribution in the Nuclear Region of Starburst Galaxy NGC 253, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dense Molecular Gas Distribution in the Nuclear Region of Starburst Galaxy NGC 253 will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1254224