Study of the dense molecular gas surrounding the "Extended Green Object" G35.03+0.35

Details Study of the dense molecular gas surrounding the "Extended Green Object" G35.03+0.35 Study of the dense molecular gas surrounding the "Extended Green Object" G35.03+0.35

2011-09-22

arxiv.org/abs/1109.4830v1

Astronomy and Astrophysics

Astrophysics

Galaxy Astrophysics

Accepted (September 21, 2011) to be published in MNRAS

Scientific paper

We present the results of a new study of the molecular gas associated with the "extended green object" (EGO) G35.03+0.35. This object, very likely a massive young stellar object, is embedded in a molecular cloud at the border of an HII region. The observations were performed with the Atacama Submillimeter Telescope Experiment (ASTE) in the 12CO and 13CO J=3-2, HCO+ J=4-3, and CS J=7-6 lines with an angular resolution about 22". From the 12CO J=3-2 line we discovered outflowing activity of the massive young stellar object. We obtained a total mass and kinetic energy for the outflows of 30 M_sun and 3000 M_sun (km/s)^2 (6 x 10^{46} ergs), respectively. We discovered a HCO+ and CS clump towards the EGO G35.03+0.35. The detection of these molecular species supports the presence of molecular outflows and a dense molecular envelope with temperatures and densities above 40 K and 6 x 10^{6} cm^{-3}, respectively. Using public near- and mid-IR, and sub-mm data we investigated the spectral energy distribution confirming that EGO G35.03+0.35 is a massive young stellar object at the earliest evolutionary stage (i.e. a class I young stellar object). By anlysing radio continuum archival data we found three radio sources towards the object, suggesting the presence of several young stellar objects in the region. Our radio continuum analysis is consistent with the presence of at least one ultracompact HII region and an hypercompact HII region or a constant-velocity ionized wind source.

Affiliated with

Also associated with

No associations

Rating

Study of the dense molecular gas surrounding the "Extended Green Object" G35.03+0.35 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 Study of the dense molecular gas surrounding the "Extended Green Object" G35.03+0.35, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Study of the dense molecular gas surrounding the "Extended Green Object" G35.03+0.35 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-263343