RRI Banner

GMRT observations of interstellar clouds in the 21cm line of atomic hydrogen.

Simple item page
dc.contributor.authorMohan, Rekhesh
dc.contributor.authorDwarakanath, K S
dc.contributor.authorSrinivasan, G
dc.contributor.authorChengalur, J N
dc.date.accessioned2012-04-27T04:30:03Z
dc.date.available2012-04-27T04:30:03Z
dc.date.issued2001-03
dc.descriptionRestricted Access. An open-access version is available at arXiv.org (one of the alternative locations)en
dc.description.abstractNearby 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.en
dc.identifier.citationJournal of Astrophysics and Astronomy, 2001, Vol.22, p35en
dc.identifier.issn0250-6335
dc.identifier.issn0973-7758(online)
dc.identifier.urihttp://hdl.handle.net/2289/4424
dc.language.isoenen
dc.publisherIndian Academy of Sciences, Bangalore, India.en
dc.relation.urihttp://adsabs.harvard.edu/abs/2001JApA...22...35Men
dc.relation.urihttp://arxiv.org/abs/http://arxiv.org/abs/astro-ph/0103278en
dc.relation.urihttp://dx.doi.org/ 10.1007/BF02933589en
dc.rights2011 Indian Academy of Sciences, Bangalore, India.en
dc.titleGMRT observations of interstellar clouds in the 21cm line of atomic hydrogen.en
dc.typeArticleen

Files

Collections

Research Papers (A&A)