Astronomy and Astrophysics – Astronomy
Scientific paper
Jan 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011aas...21734201k&link_type=abstract
American Astronomical Society, AAS Meeting #217, #342.01; Bulletin of the American Astronomical Society, Vol. 43, 2011
Astronomy and Astrophysics
Astronomy
Scientific paper
After the 10-month supply of cryogens ran out on the Diffuse Infrared Background Experiment (DIRBE), the four shortest wavelength channels, 1.25, 2.2, 3.5, and 4.9 microns, continued to obtain data for an additional 2.7 years. Out of the 11,000+ sources in the DIRBE Point Source Catalog (DPSC; Smith et al. 2004) from the cryogenic phase of the mission, we selected a quarter ( 2700) whose photometric and spatial characteristics indicated they would likely have good near-IR data during the post-cryo phase. We have reprocessed and recalibrated the weekly-averaged post-cryo data to place them on the same basis as the cryo data, albeit at a slower cadence. The resultant 3.6 year light curves have been analyzed for variability using the Lomb-Scargle periodogram formulation. With the periodograms, we have (1) found that 97% of the mid-IR standards in the Air Force Calibration Star Network are also non-variable in the near-IR; (2) confirmed that 93% of the stars flagged as variable in the DPSC are variables or candidate variables; and (3) found an additional 324 variables and candidates which were not so flagged in the DPSC. Additionally, we have begun to investigate wavelength-dependent phase lags between the visible and the near-IR maxima, extending study of Smith et al. (2006) to those stars with periods longer than the 300 day cryo mission. The light curve data are available to the community through the Vizier service at the Centre de Donnees Astronomique de Strasbourg.
Kraemer Kathleen E.
Kuchar Thomas A.
Mizuno Donald R.
Price Stephan D.
Smith Jeffrey B.
No associations
LandOfFree
The 3.6 Year DIRBE Near-Infrared Light Curve Archive 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 The 3.6 Year DIRBE Near-Infrared Light Curve Archive, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The 3.6 Year DIRBE Near-Infrared Light Curve Archive will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1402874