Published October 2010 | Version v1
Journal article

3.6 YEARS OF DIRBE NEAR-INFRARED STELLAR LIGHT CURVES

  • 1. Air Force Research Lab/Space Vehicles Directorate, 29 Randolph Road, Hanscom AFB, MA 01731-3010 (United States)
  • 2. Department of Physics and Astronomy, East Tennessee State University, Johnson City, TN 37614 (United States)
  • 3. Institute for Scientific Research, Boston College, 140 Commonwealth Ave., Chestnut Hill, MA 02467 (United States)

Description

The weekly averaged near-infrared fluxes for 2652 stars were extracted from the cold and warm era all-sky maps of the Diffuse Infrared Background Experiment (DIRBE). Since the DIRBE program only archived the individual Calibrated Infrared Observations for the 10 month cold era mission, the weekly averaged fluxes were all that were available for the warm era. The steps required to extract stellar fluxes are described as are the adjustments that were necessary to correct the results for several systematic effects. The observations are at a cadence of once a week for 3.6 years (∼1300 days), providing continuous sampling on variable stars that span the entire period for the longest fundamental pulsators. The stars are divided into three categories: those with large amplitude of variability, smaller amplitude variables, and sources whose near-infrared brightness do not vary according to our classification criteria. We show examples of the results and the value of the added baseline in determining the phase lag between the visible and infrared.

Availability note (English)

Available from http://dx.doi.org/10.1088/0067-0049/190/2/203

Additional details

Identifiers

Publishing Information

Journal Title
Astrophysical Journal, Supplement Series
Journal Volume
190
Journal Issue
2
Journal Page Range
p. 203-219
ISSN
0067-0049
CODEN
APJSA2

INIS

Country of Publication
United States
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
42049408
Subject category
S79: ASTROPHYSICS, COSMOLOGY AND ASTRONOMY;
Descriptors DEI
AMPLITUDES; ASTROPHYSICS; BRIGHTNESS; CLASSIFICATION; VARIABLE STARS
Descriptors DEC
OPTICAL PROPERTIES; PHYSICAL PROPERTIES; PHYSICS; STARS