Astroskiagraphy of Cold Galactic HI

Details Astroskiagraphy of Cold Galactic HI Astroskiagraphy of Cold Galactic HI

Dec 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001aas...199.1114g&link_type=abstract

American Astronomical Society, 199th AAS Meeting, #11.14; Bulletin of the American Astronomical Society, Vol. 33, p.1325

Astronomy and Astrophysics

Astronomy

Scientific paper

A skiagram is an image made up of shadows or outlines. Much of the cold atomic hydrogen in the interstellar medium can only be studied skiagraphically as HI self-absorption (HISA) against background HI 21cm emission. The Canadian Galactic Plane Survey (CGPS) has captured a multitude of HISA features, many of which are invisible in prior surveys at lower resolution. We are charting the distribution of HISA clouds in a 73 x 9 degree section of the outer Galaxy covered by the CGPS. We have developed automated methods of detecting and analyzing HISA which allow us to study the cloud population systematically. We report on the latest results of our survey, including the gas properties of HISA features, their total mass budget, spatial distribution, and degree of statistical association with detected molecular gas. We also consider issues of feature detectability and possible biases in our approach. This work is supported by a grant from the Natural Sciences and Engineering Research Council of Canada.

Affiliated with

Also associated with

No associations

Rating

Astroskiagraphy of Cold Galactic HI 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 Astroskiagraphy of Cold Galactic HI, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Astroskiagraphy of Cold Galactic HI will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1229323