Astronomy and Astrophysics – Astrophysics
Scientific paper
Nov 1997
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997a%26a...327..755p&link_type=abstract
Astronomy and Astrophysics, v.327, p.755-757
Astronomy and Astrophysics
Astrophysics
2
Masers, Stars: Formation, Ism: Clouds, Galaxies: Starburst
Scientific paper
A high-sensitivity search for water maser emission at 22.2 GHz has been performed on a sample of 91 IRAS point sources at high-latitudes. The aim of the survey is to verify if these clouds are capable of star formation as indicated by the presence of water masers. The sample is based on the recent work of Magnani et al. (1995ApJS...96..159M) who have identified 192 infrared objects from the IRAS Faint Source Survey possibly associated with translucent clouds at galactic latitudes |b|>=30°. These IRAS sources have far-infrared colours typical of young stellar objects and pre-main-sequence stars and thus provide a starting list for further studies about their actual nature. H_2_O maser emission is a good diagnostic of the presence of dense gas and of recent star formation. We did not find water maser emission at a level of 0.2-0.5Jy (3σ) in any of the 91 objects. The negative result indicates that these high-latitude sources do not represent potential sites of star formation, consistent with the fact that most high-latitude molecular clouds do not appear gravitationally bound.
Baffa Carlo
Codella Claudio
Palla Fabrizio
Valdettaro Riccardo
No associations
LandOfFree
Search for H_2_O maser emission from high-latitude IRAS sources. 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 Search for H_2_O maser emission from high-latitude IRAS sources., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Search for H_2_O maser emission from high-latitude IRAS sources. will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1682546