Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 2002
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002aas...201.9309l&link_type=abstract
American Astronomical Society, 201st AAS Meeting, #93.09; Bulletin of the American Astronomical Society, Vol. 34, p.1260
Astronomy and Astrophysics
Astronomy
Scientific paper
We present an analysis of NICMOS observations of the embedded cluster NGC 2024. An analysis of the cluster color-magnitude diagram (CMD) using models of D'Antona & Mazzitelli (1998) and Baraffe et al. (1998) indicates that the ratio of intermediate mass (1.0 to 10.0 Msun) to low mass (0.1 to 1.0 Msun) stars is consistent with a field star IMF. We also present results on the multiplicity of stars in the region. Three companions (in a sample of 94 potential primaries) were found, with an angular separations between 0".4 and 1".0, translating to a projected linear separation of 184 AU to 460 AU for an estimated distance of 470 pc. The completeness of binary detections is assessed using recovery fractions calculated by a series of tests using artificially generated companions to potential primaries in the data frames. We find that the binary fraction is similar to that of Duquennoy & Mayor (1991) for solar-type stars over the range of separations and companion masses appropriate for our survey.
Cotera Angela S.
Liu Wei-Min
Meyer Michael R.
Young Eric T.
No associations
LandOfFree
HST/NICMOS Observations of NGC 2024: The Emergent Mass Distribution and Stellar Multiplicity 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 HST/NICMOS Observations of NGC 2024: The Emergent Mass Distribution and Stellar Multiplicity, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and HST/NICMOS Observations of NGC 2024: The Emergent Mass Distribution and Stellar Multiplicity will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1890864