Water Masers Associated with Infrared Dark Cloud Cores

Details Water Masers Associated with Infrared Dark Cloud Cores Water Masers Associated with Infrared Dark Cloud Cores

Nov 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006apj...651l.125w&link_type=abstract

The Astrophysical Journal, Volume 651, Issue 2, pp. L125-L128.

Astronomy and Astrophysics

Astronomy

28

Ism: Clouds, Ism: Kinematics And Dynamics, Stars: Formation

Scientific paper

We present a survey of the 616-523 H2O maser transition toward a sample of 140 compact cores in infrared dark clouds using the Very Large Array. Strong (>1 Jy) H2O maser emission was found associated with 17 cores, indicative of star formation in these cores. We infer that the cores with H2O masers have embedded protostars. Cores associated with maser emission have masses of 12 to 2×103 Msolar, similar to the mass range in the entire sample. The H2O maser detection rate (12%) toward the compact, cold cores is much lower than that toward high-mass protostellar objects and ultracompact H II regions. The detection rate of H2O masers is significantly higher for higher mass cores than for lower mass cores. We suggest that some of the most massive infrared dark cloud cores without H2O maser emission are at an evolutionary stage earlier than the protostellar phases. They are prime candidates for high-mass starless cores.

Affiliated with

Also associated with

No associations

Rating

Water Masers Associated with Infrared Dark Cloud Cores 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 Water Masers Associated with Infrared Dark Cloud Cores, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Water Masers Associated with Infrared Dark Cloud Cores will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1311191