Complex molecules in the hot core of the low mass protostar NGC1333-IRAS4A

Details Complex molecules in the hot core of the low mass protostar NGC1333-IRAS4A Complex molecules in the hot core of the low mass protostar NGC1333-IRAS4A

2004-07-07

arxiv.org/abs/astro-ph/0407154v1

Astrophys.J. 615 (2004) 354-358

Astronomy and Astrophysics

Astrophysics

13 pages, 3 figures; accepted by ApJ

Scientific paper

10.1086/423952

We report the detection of complex molecules (HCOOCH_3, HCOOH and CH_3CN), signposts of a "hot core" like region, toward the low mass, Class 0 source NGC1333-IRAS4A. This is the second low mass protostar where such complex molecules have been searched for and reported, the other source being IRAS16293-2422. It is therefore likely that compact (few tens of AUs) regions of dense and warm gas, where the chemistry is dominated by the evaporation of grain mantles, and where complex molecules are found, are common in low mass Class 0 sources.Given that the chemical formation timescale is much shorter than the gas hot core crossing time, it is not clear whether the reported complex molecules are formed on the grain surfaces (first generation molecules) or in the warm gas by reactions involving the evaporated mantle constituents (second generation molecules). We do not find evidence for large differences in the molecular abundances, normalized to the formaldehyde abundance, between the two solar type protostars, suggesting perhaps a common origin.

Affiliated with

Also associated with

No associations

Rating

Complex molecules in the hot core of the low mass protostar NGC1333-IRAS4A 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 Complex molecules in the hot core of the low mass protostar NGC1333-IRAS4A, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Complex molecules in the hot core of the low mass protostar NGC1333-IRAS4A will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-221451