3.6 YEARS OF DIRBE NEAR-INFRARED STELLAR LIGHT CURVES
| Autor: | Thomas A. Kuchar, Donald R. Mizuno, Kathleen E. Kraemer, Stephan D. Price, Beverly J. Smith |
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| Rok vydání: | 2010 |
| Předmět: |
Physics
Brightness Diffuse Infrared Background Experiment Infrared Near-infrared spectroscopy Astronomy Astronomy and Astrophysics Astrophysics::Cosmology and Extragalactic Astrophysics Astrophysics Light curve Stars Amplitude Space and Planetary Science Astrophysics::Solar and Stellar Astrophysics Astrophysics::Earth and Planetary Astrophysics Variable star Astrophysics::Galaxy Astrophysics |
| Zdroj: | The Astrophysical Journal Supplement Series. 190:203-219 |
| ISSN: | 1538-4365 0067-0049 |
| DOI: | 10.1088/0067-0049/190/2/203 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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