| Autor: |
van der Hucht, KA, Williams, PM, Catchpole, RM, Duijsens, MFJ, Glass, IS, Gunawan, DYAS |
| Přispěvatelé: |
Kapteyn Astronomical Institute |
| Jazyk: |
angličtina |
| Rok vydání: |
1998 |
| Předmět: |
|
| Zdroj: |
Astronomy & astrophysics, 339(2), L45-L48. EDP Sciences |
| ISSN: |
0004-6361 |
| Popis: |
We present observations of WR 19 showing an infrared excess due to newly created dust similar to an event observed in 1988. We suggest that these episodes of dust-formation are periodic (P similar to 10yr) and related to the binary nature of the object, comparable to the colliding-wind binary WR 140. In support of this thesis we identified absorption lines from a companion of spectral type 09.5-9.7. We propose monitoring the object to determine orbital parameters, non-thermal radio emission and the accurate shape of the infrared light-curve. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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