Spectral and Luminosity Classification of Symbiotic Star Cool Components with Near-Infrared Photometry
| Autor: | Charles D. Keyes, Brandon Preblich |
|---|---|
| Rok vydání: | 2004 |
| Předmět: |
Physics
Astrophysics::High Energy Astrophysical Phenomena K-type main-sequence star Near-infrared spectroscopy Astronomy Photometric system Astronomy and Astrophysics Astrophysics::Cosmology and Extragalactic Astrophysics Astrophysics Stellar classification Photometry (optics) T Tauri star Stars Space and Planetary Science Symbiotic star Astrophysics::Solar and Stellar Astrophysics Astrophysics::Earth and Planetary Astrophysics Astrophysics::Galaxy Astrophysics |
| Zdroj: | The Astronomical Journal. 128:2981-2987 |
| ISSN: | 1538-3881 0004-6256 |
| Popis: | We have used the absolutely calibrated Wing eight-color near-infrared photometric system to quantitatively derive spectral types and luminosity classes for the cool components of 12 symbiotic stars. We examine the advantages and limitations of the system as applied to symbiotic systems. We find that three systems, CI Cyg, T CrB, and S149, have CN strengths corresponding to luminosity class II. For several systems there is a correlation between photometric phase and measured spectral type. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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