Other
Scientific paper
Jul 2003
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003hst..prop.9866m&link_type=abstract
HST Proposal ID #9866
Other
Hst Proposal Id #9866 Ism And Circumstellar Matter
Scientific paper
We propose to obtain the first spectra of the central stars of Orion proplyds for which the stars are visible in WFPC images. While it is known that the central stars are broadly late-type, they have never been spectrally classified or studied in detail as pre-MS objects. The Orion proplyds are generally thought to be protoplanetary disks similar to the primordial disk of the Solar System. They offer a unique opportunity to understand the physical conditions of protoplanetary disks in a nebular environment generally believed to be typical of that in which most stars formed. Models of the proplyds are available which predict the observable IR spectral energy distribution using the spectral type of the central star as part of the numerical input. Further progress in understanding proplyds will require knowledge of the spectral types of these stars. We will use already-proven diagnostics for spectrally classifying late-type PMS stars. In addition, many emission lines are expected in objects of this age which can be used to look for infall and outflow. Different accretion models of young stars predict different line widths, so our observations can help test models of late-type pre-MS stars and can be used to compare as pre-MS objects the proplyd stars with other pre-MS stars.
No associations
LandOfFree
First Spectroscopic Study of a Unique Set of Young Stars in the Orion Nebula 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 First Spectroscopic Study of a Unique Set of Young Stars in the Orion Nebula, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and First Spectroscopic Study of a Unique Set of Young Stars in the Orion Nebula will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1133611