Computer Science
Scientific paper
May 2007
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007sptz.prop40648s&link_type=abstract
Spitzer Proposal ID #40648
Computer Science
Scientific paper
In order to increase our current knowledge of the evolutionary process of young stellar objects, we propose to conduct a careful study that correlates Spitzer observations with Chandra spectral data of young solar analogs. Although very few young solar analogs are bright enough in X-rays for Chandra to obtain high resolution spectra, we have identified a sample of nine stars already in the Chandra archive, observed with the high resolution spectrometer on-board Chandra. Our sample consists of both classical, weak-lined, and post-T Tauri stars as well as a young main sequence star. Archival IRS spectra exist in the Spitzer archives for five of these stars. We request time to observe the remaining four stars with Spitzer IRS. These observations are crucial to the sample since they include the post T Tauri and main sequence star that complete the sample across a full range of evolutionary stages. This study will be the first direct comparison of mid-infrared spectral features with high-resolution X-ray spectral signatures of young stellar objects. As a complement to this observing proposal, a Cycle 4 archival proposal has been submitted to analyze the Spitzer IRS archival data. Using Spitzer IRS to study spectral features and overall shape of the SED from 5 -40 microns in conjunction with high resolution spectroscopy from Chandra, we will correlate mid-infrared and X-ray features in different classes of YSOs to determine an evolutionary sequence in terms of accretion from inner and outer regions of a circumstellar disk. The evolution and overall lifetimes of such circumstellar disks is crucial to understanding the likelihood of planet formation around solar-type stars.
Lowrance Patrick
Shukla Sonali
Weintraub David
No associations
LandOfFree
Inner disk activity in T Tauri stars 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 Inner disk activity in T Tauri stars, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Inner disk activity in T Tauri stars will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1749845