Astronomy and Astrophysics – Astronomy
Scientific paper
Jun 2006
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006rmxac..26q.164p&link_type=abstract
XI IAU Regional Latin American Meeting of Astronomy (Eds. L. Infante & M. Rubio) Revista Mexicana de Astronomía y Astrofísica (S
Astronomy and Astrophysics
Astronomy
Scientific paper
The COordinated Molecular Probe Line Extinction Thermal Emission (COMPLETE) Survey of Star Forming Regions collaboration has finished mapping the Perseus molecular cloud in ^{12}CO and ^{13}CO 1 → 0, covering an area of ≈ 2°×7° with the Five College Radio Astronomy Observatory (FCRAO) (Ridge et al. 2006).
We applied the Clumpfind algorithm (Williams et al. 1994) to our ^{13}CO 1 → 0 transition data-cube with 4 different set of parameters. Using this molecular line as a density tracer we can estimate the mass for each clump found by Clumpfind. Assuming a distance of ˜ 260 pc and an abundance of 2.18×10^{-6} with respect to H_2, we derived the Clump Mass Function (CMF) and the Virial Parameter (Betoldi & McKee, 1992).
The CMFs can be fitted with a broken power-law above 1 M_&sun;, where all CMDs match. The exponents are 1.2 and 2.9, where the Salpeter slope is 2.35, with the turn over around 10M_&sun;. Below ˜ 1 M_&sun; a different plateau is reached for each set of parameters. The results show that the virial parameter is smaller for the most massive objects, but there is a lack of clumps with virial parameter less than unity. This could be due to depletion of ^{13}CO in the most massive objects or due to a sensitivity limit.
Borkin Michelle A.
Goodman Alyssa A.
Pineda Jaime E.
Ridge Naomi A.
Schnee Scott L.
No associations
LandOfFree
Clumpfind in Perseus Molecular Cloud 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 Clumpfind in Perseus Molecular Cloud, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Clumpfind in Perseus Molecular Cloud will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1479320