Spectroscopic and polarimetric observations of NGC 1333 and the surrounding dark cloud complex
| Autor: | E. R. Craine, D. A. Turnshek, D. E. Turnshek |
|---|---|
| Rok vydání: | 1980 |
| Předmět: |
Physics
media_common.quotation_subject Near-infrared spectroscopy Astronomy Astronomy and Astrophysics Astrophysics::Cosmology and Extragalactic Astrophysics Astrophysics Stellar classification Interstellar medium Stars Space and Planetary Science Sky Emission spectrum Astrophysics::Galaxy Astrophysics Main sequence media_common Cosmic dust |
| Zdroj: | The Astronomical Journal. 85:1638 |
| ISSN: | 0004-6256 |
| Popis: | Spectroscopy and polarimetry of several very red stars, noted on Near Infrared Photographic Sky Survey photographs in the region of NGC 1333, have yielded a 'map' suggesting the extent of polarization arising from a two-cloud structure in the region. Spectral types and color indices of the stars make it possible to infer that grain radii in the clouds exceed typical interstellar medium values and, further, that they increase with optical depth into the cloud. The present observations indicate that the cloud structure is far more extensive than previously realized. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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