The nature of massive protostellar candidates. I. A search for water masers towards color-selected IRAS sources.

Details The nature of massive protostellar candidates. I. A search for water masers towards color-selected IRAS sources. The nature of massive protostellar candidates. I. A search for water masers towards color-selected IRAS sources.

Oct 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995a%26a...302..528c&link_type=abstract

Astronomy and Astrophysics, v.302, p.528

Astronomy and Astrophysics

Astrophysics

6

Masers, Stars: Formation, Hii Regions, Radio Lines: Ism, Infrared: Ism: Continuum

Scientific paper

A search for water maser emission at 22.2GHz has been performed towards 160 IRAS sources selected using the Wood & Churchwell color criteria to identify high-mass star forming regions. The aim of the survey is to verify the existence of a substantial variation of the maser detection rate within the Wood & Churchwell sample, and to estimate its possible contamination due to spurious sources. Out of the whole sample, water maser emission was found in 11 sources, 2 of which being new detections. The success rate of the survey is very low: 7%. We find a strong dependence of the maser occurrence on the IRAS flux density at 60μm: the rate drops from ~24% for sources brighter than 100Jy to ~1% for weaker ones. These results, combined with those found in previous surveys, indicate that it is very unlikely that the population of weak IRAS sources with shallow far-infrared continuum spectra is associated with high-mass star forming regions. Since these sources account for about half of the total number of the IRAS PS located inside the Wood & Churchwell color box, we believe that the predicted population of OB-type stars may have been overestimated by a factor up to 50%.

Affiliated with

Also associated with

No associations

Rating

The nature of massive protostellar candidates. I. A search for water masers towards color-selected 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 The nature of massive protostellar candidates. I. A search for water masers towards color-selected IRAS sources., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The nature of massive protostellar candidates. I. A search for water masers towards color-selected IRAS sources. will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1351257