Computer Science
Scientific paper
May 2007
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007sptz.prop40357m&link_type=abstract
Spitzer Proposal ID #40357
Computer Science
Scientific paper
We propose to conduct the first survey for circumstellar disks in a newly identified young association using IRAC and MIPS. With an age of 25 Myr and a distance of 95 pc, the '32 Ori Group' is the first northern, nearby young association (<100 Myr, <100 pc) to be discovered. Despite being a relatively small sample, this group is an important Spitzer target due to its age (nearby stellar groups with ages of 15-50 Myr are rare) and proximity (allowing Spitzer to efficiently detect smaller amounts of dust for shorter exposure times for low-mass pre-main sequence stars). If our own solar system is representative, then one expects that these systems might be in an evolutionary stage where terrestrial planet formation is an advanced state, but considerable amounts of dust might be continually replenished (and detectable with Spitzer) from the gravitational stirring of small planetesimals by the largest protoplanets. We will survey these newly available novel targets with the IRAC and MIPS instruments to identify targets with IR excess. Model fits to spectral energy distributions will constrain the dust content in these disks and enable comparison of data to models at this important age range when the terrestrial planets of our own solar system were being assembled.
Kim Serena
Mamajek Eric E.
Meyer Michael R.
No associations
LandOfFree
Search for Terrestrial Temperature Debris Around Needles in the Haystack: A Survey for Disks in a Newly Discovered Nearby 20-30 Myr Old Association 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 Search for Terrestrial Temperature Debris Around Needles in the Haystack: A Survey for Disks in a Newly Discovered Nearby 20-30 Myr Old Association, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Search for Terrestrial Temperature Debris Around Needles in the Haystack: A Survey for Disks in a Newly Discovered Nearby 20-30 Myr Old Association will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1749059