Spectroscopic Survey of Hα Emission Line Stars Associated with Bright Rimmed Clouds
| Autor: | A. K. Sen, Ranjan Gupta, Yoichi Itoh, Kensuke Hosoya, Yumiko Oasa |
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| Rok vydání: | 2019 |
| Předmět: |
Physics
Faint Object Spectrograph Astrophysics::Cosmology and Extragalactic Astrophysics Astrophysics law.invention Telescope T Tauri star Stars law Astrophysics::Solar and Stellar Astrophysics H-alpha Astrophysics::Earth and Planetary Astrophysics Emission spectrum Spectroscopy Equivalent width Astrophysics::Galaxy Astrophysics |
| Zdroj: | International Journal of Astronomy and Astrophysics. :154-471 |
| ISSN: | 2161-4725 2161-4717 |
| Popis: | The results of a spectroscopic survey of H alpha emission line stars associated with fourteen bright rimmed clouds are presented. Slit-less optical spectroscopy was carried out with the Inter University Centre for Astronomy and Astrophysics (IUCAA) 2m telescope and IUCAA Faint Object Spectrograph and Camera (IFOSC). H alpha emission line was detected from 173 objects. Among them 85 objects have a strong H alpha emission line with its equivalent width larger than 10 A. Those are classical T Tauri stars. 52 objects have a weak H alpha emission line with its equivalent width less than 10 A and do not show intrinsic near-infrared excess. Those are weak-line T Tauri stars. On the other hand, 36 objects have a weak H alpha emission line ( |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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