Astronomy and Astrophysics – Astrophysics
Scientific paper
2004-07-17
Astrophys.Space Sci. 295 (2005) 65-70
Astronomy and Astrophysics
Astrophysics
6 pages, 3 figures. To appear in the Proceedings of the 2004 European Workshop: "Dense Molecular Gas around Protostars and in
Scientific paper
10.1007/s10509-005-3661-6
We present a study of the structure and dynamics of the star forming region B1-IRS (IRAS 03301+3057) using the properties of different molecules at high angular resolution (~4''). We have used VLA observations of NH3, CCS, and H2O masers at 1 cm. CCS emission shows three clumps around the central source, with a velocity gradient from red to blueshifted velocities towards the protostar, probably due to the interaction with outflowing material. Water maser emission is elongated in the same direction as a reflection nebula detected at 2micron by 2MASS, with the maser spots located in a structure of some hundreds of AU from the central source, possibly tracing a jet. We propose a new outflow model to explain all our observations, consisting of a molecular outflow near the plane of the sky. Ammonia emission is extended and anticorrelated with CCS. We have detected for the first time this anticorrelation at small scales (1400 AU) in a star forming region.
Anglada Guillem
Chandler Claire J.
Gomez Jose F.
Gregorio-Monsalvo Itziar de
Kuiper Thomas B. H.
No associations
LandOfFree
High-Resolution Observations in B1-IRS: ammonia, CCS and water masers 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 High-Resolution Observations in B1-IRS: ammonia, CCS and water masers, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and High-Resolution Observations in B1-IRS: ammonia, CCS and water masers will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-11938