Spitzer Observations of Main-Sequence Stars: The Search for Hot Circumstellar Dust

Details Spitzer Observations of Main-Sequence Stars: The Search for Hot Circumstellar Dust Spitzer Observations of Main-Sequence Stars: The Search for Hot Circumstellar Dust

Dec 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004aas...205.1704f&link_type=abstract

American Astronomical Society Meeting 205, #17.04; Bulletin of the American Astronomical Society, Vol. 36, p.1365

Astronomy and Astrophysics

Astronomy

Scientific paper

We report on an on-going Spitzer Guaranteed Time Observations program (led by Principal Investigator M. Werner) in which we search for warm (temperature of order 300 K) circumstellar dust debris disks in main-sequence stars. We selected candidate systems using 2MASS J, H, Ks photometry, to estimate photospheric SEDs, and IRAS FSC 12 μ m photometry. Dust emitting at 12 μ m can be located at about 1--10 AU from the stars, in possible asteroidal clouds. We are obtaining IRAC 3.6, 4.5, 5.8, and 8 μ m photometry to search for the hottest dust, and therefore the innermost edge, of the disks. Through IRS 5.3--21.8 μ m spectroscopy we are searching for PAH 6.2, 7.7, 8.6, and 11.3 μ m features, and 10 and 20 μ m silicate emission features. We also probe colder dust, more distant from the stars, in Kuiper Belt-like regions, through MIPS 24 μ m photometry.
This work is based on observations made with the Spitzer Space Telescope, which is operated by the Jet Propulsion Laboratory, California Institute of Technology under NASA contract 1407. Support for this work was provided by NASA through an award issued by JPL/Caltech.

Affiliated with

Also associated with

No associations

Rating

Spitzer Observations of Main-Sequence Stars: The Search for Hot Circumstellar Dust 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 Spitzer Observations of Main-Sequence Stars: The Search for Hot Circumstellar Dust, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Spitzer Observations of Main-Sequence Stars: The Search for Hot Circumstellar Dust will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1636099