Semiregular variables in the solar neighbourhood
| Autor: | I. S. Glass, F.E. van Leeuwen |
|---|---|
| Rok vydání: | 2007 |
| Předmět: |
Physics
Milky Way Astrophysics (astro-ph) Diagram Neighbourhood (graph theory) FOS: Physical sciences Astronomy and Astrophysics Astrophysics::Cosmology and Extragalactic Astrophysics Astrophysics Stars Amplitude Space and Planetary Science Bulge Astrophysics::Solar and Stellar Astrophysics Circumstellar dust Astrophysics::Earth and Planetary Astrophysics Parallax Astrophysics::Galaxy Astrophysics |
| Zdroj: | Monthly Notices of the Royal Astronomical Society. 378:1543-1549 |
| ISSN: | 1365-2966 0035-8711 |
| DOI: | 10.1111/j.1365-2966.2007.11903.x |
| Popis: | Period-luminosity sequences have been shown to exist among the Semi-Regular Variables (SRVs) in the Magellanic Clouds (Wood et al, 1999), the Bulge of the Milky Way galaxy (Glass & Schultheis, 2003) and elsewhere. Using modern period and revised Hipparcos parallax data, this paper demonstrates that they also appear among the M-giant SRVs of the Solar Neighbourhood. Their distribution in the K, log P diagram resembles that of Bulge stars more closely than those in the Magellanic Clouds. The prevalence of mass-loss among local M-type SRVs and its dependence on period and spectral sub-type are also discussed. K -- [12], a measure of circumstellar dust emission, increases clearly with V amplitude, M giant sub-type and log P. MNRAS (accepted) |
| Databáze: | OpenAIRE |
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