Stellar Contents of the Galactic Giant H { II} Region NGC 3603

Details Stellar Contents of the Galactic Giant H { II} Region NGC 3603 Stellar Contents of the Galactic Giant H { II} Region NGC 3603

Oct 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000pasj...52..847p&link_type=abstract

Publications of the Astronomical Society of Japan, v.52, p.847-865.

Astronomy and Astrophysics

Astronomy

40

Open Clusters: Individual (Ngc 3603), Reddenning Law, Stars: Mass Function

Scientific paper

We present CCD UBVRI and Hα photometry for the starburst cluster associated with the galactic giant H II region NGC 3603. The mean reddening of the cluster members comes out to be < E(B-V)>=1.48 +/- 0.21 (s.d.). The surface distribution of the reddening shows a radial variation with a minimum near to the cluster center and two local maxima at radii ~ 30'' and ~ 70''. Our photometric data indicate an anomalous reddening law for the dust inside the cluster region, and the ratio of the total to the selective extinction, R, is found to be ~ 4.3. A comparison of the observational and intrinsic colour-magnitude digrams (CMDs) yields a mean distance modulus of (m - M)_0 = 14.0, which corresponds to a distance of 6.3 +/- 0.6 kpc. This distance is smaller than those obtained in earlier works (e.g., 7.2 kpc, Melnick et al. 1989, AAA 49.132.013) but is in good agreement with the kinematic distance (6.1 +/- 0.6 kpc) recently reported by De Pree et al. (1999, AAA 71.132.041). The cluster shows a large age spread, containing stars as old as up to several Myr. However, the mean age of the cluster is found to be <= 1 Myr. We estimate a minimum star formation efficiency of ~ 25 % and a gas removal time of tau ~ 4.6 Myr.

Affiliated with

Also associated with

No associations

Rating

Stellar Contents of the Galactic Giant H { II} Region NGC 3603 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 Stellar Contents of the Galactic Giant H { II} Region NGC 3603, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Stellar Contents of the Galactic Giant H { II} Region NGC 3603 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1106786