Distance Determination of Mass-Losing Stars
| Autor: | Shigeko Magono, Manabu Yuasa, Wasaburo Unno |
|---|---|
| Rok vydání: | 1999 |
| Předmět: |
Physics
education.field_of_study Red giant Population Astronomy Flux Astronomy and Astrophysics Astrophysics::Cosmology and Extragalactic Astrophysics Astrophysics Square (algebra) Radial velocity Distance modulus Stars Space and Planetary Science Principal component analysis Astrophysics::Solar and Stellar Astrophysics Astrophysics::Earth and Planetary Astrophysics education Astrophysics::Galaxy Astrophysics |
| Zdroj: | Publications of the Astronomical Society of Japan. 51:197-209 |
| ISSN: | 2053-051X 0004-6264 |
| DOI: | 10.1093/pasj/51.2.197 |
| Popis: | Based on the Principal Component Analysis on IRAS colors and the radio data, the distances to 183 mass-losing red giant stars were determined using the radial velocity and Oort's galactic rotation model for a zero-point calibration in the distance modulus. Also, based on the requirement of higher accuracy of the distance determination, the mass-losing red giant stars were divided into two groups by means of the first-principal component representing an intrinsic photometric property of the expanding shell; then, the distances were estimated to be logd(kpc) = 0.458 p |
| Databáze: | OpenAIRE |
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