Astronomy and Astrophysics – Astronomy
Scientific paper
Oct 1994
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994aj....108.1382m&link_type=abstract
The Astronomical Journal, vol. 108, no. 4, p. 1382-1397
Astronomy and Astrophysics
Astronomy
275
B Stars, Infrared Astronomy, Infrared Imagery, Near Infrared Radiation, O Stars, Star Clusters, Stellar Envelopes, Stellar Spectra, Astronomical Photography, Astronomical Photometry, Hubble Space Telescope, Infrared Spectroscopy, Orion Nebula
Scientific paper
We present high spatial resolution (0.35 and 0.65 arcsec full width at half maximum (FWHM)) near-infrared images of the central 0.2x0.2 pc of the Trapezium Cluster in the Orion Nebula, centered on the Trapezium OB stars. These images provide the most complete census of stars in this region, and we give accurate positions and near-infrared (2.1 microns) magnitudes for 123 stars. After accounting for line-of-sight projection, we estimate a stellar density for the cluster of approximately 4.7 X 104 stars per cubic parsec in the approximately 0.1 pc diameter core. We identify stellar counterparts to virtually all the known dense knots of ionized gas seen at optical and radio wavelengths, strongly supporting the hypothesis that many are either intrinsic stellar radio emitters or circumstellar disks around stars, and not simply dense clumps of gas and dust. We derive approximate masses for the stars associated with the compact knots, finding that the majority are relatively low mass.
McCaughrean Mark J.
Stauffer John R.
No associations
LandOfFree
High resolution near-infrared imaging of the trapezium: A stellar census 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 near-infrared imaging of the trapezium: A stellar census, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and High resolution near-infrared imaging of the trapezium: A stellar census will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1069848