GMRT Observations of Interstellar Clouds in the 21cm line of Atomic Hydrogen

Details GMRT Observations of Interstellar Clouds in the 21cm line of Atomic Hydrogen GMRT Observations of Interstellar Clouds in the 21cm line of Atomic Hydrogen

2001-03-17

arxiv.org/abs/astro-ph/0103278v1

Astronomy and Astrophysics

Astrophysics

16 pages, 6 figures (included), Accepted for publication in Journal of Astrophysics & Astronomy, uses jaa.sty

Scientific paper

10.1007/BF02933589

Nearby interstellar clouds with high (|v| >/= 10 km/s) random velocities although easily detected in NaI and CaII lines have hitherto not been detected (in emission or absorption) in the HI 21cm line. We describe here deep Giant Metrewave Radio Telescope (GMRT) HI absorption observations toward radio sources with small angular separation from bright O and B stars whose spectra reveal the presence of intervening high random velocity CaII absorbing clouds. In 5 out of the 14 directions searched we detect HI 21cm absorption features from these clouds. The mean optical depth of these detections is ~ 0.09 and FWHM is ~ 10 km/s, consistent with absorption arising from CNM clouds.

Affiliated with

Also associated with

No associations

Rating

GMRT Observations of Interstellar Clouds in the 21cm line of Atomic Hydrogen 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 GMRT Observations of Interstellar Clouds in the 21cm line of Atomic Hydrogen, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and GMRT Observations of Interstellar Clouds in the 21cm line of Atomic Hydrogen will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-92624