Physics
Scientific paper
Mar 2008
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008sptz.prop50740f&link_type=abstract
Spitzer Proposal ID #50740
Physics
Scientific paper
With the discovery of G77-61 (Dahn et al. 1977) at a mere 58 pc and therefore relatively low luminosity, a category of dwarf carbon (dC) stars was finally recognized.This, however, presented a puzzle because a low mass star is incapable of the helium fusion needed to create carbon. A reolution was proposed and generally accepted a second member of a system could 'dump' carbon on it through an AGB stage. Current understanding of the formation and evolution of dC's is, however, limited by the small number of objects and observations. We propose observations of each carbon dwarf with IRAC, MIPS 24um, and MIPS 70um to attempt to detect a redsidual debris disk from such an event. The proposed model for creating carbon dwarfs is based on three objects and the mechanism for dumping material on these low-mass stars and building debris systems are currently unexplored. Thus the opportunity afforded by our program to add observational proof is valuable, especially for the very ill-studied carbon dwarfs. Only Spitzer can provide the spectral range and sensitivity to gain the observations needed in understanding disk formation and dissipation timescales around all evolved stars placing carbon in our ISM - a building block of life as we know it.
Fazio Giovanni
Lowrance Patrick
No associations
LandOfFree
Exploring Dwarf Carbon Stars: Do They Really Have Disks? 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 Exploring Dwarf Carbon Stars: Do They Really Have Disks?, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Exploring Dwarf Carbon Stars: Do They Really Have Disks? will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-885974