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http://hdl.handle.net/2248/5489| Title: | Dust-scattered Ultraviolet Halos around Bright Stars |
| Authors: | Murthy, J Conn Henry, R |
| Keywords: | Dust, extinction – ISM Clouds – ultraviolet: ISM |
| Issue Date: | 10-Jun-2011 |
| Publisher: | IOP Publishing |
| Citation: | The Astrophysical Journal, Vol. 734, No. 1, 13 |
| Abstract: | We have discovered ultraviolet (UV) halos extending as far as 5° around four (of six) bright UV stars using data from the Galaxy Evolution Explorer satellite. These halos are due to scattering of the starlight from nearby thin, foreground dust clouds. We have placed limits of 0.58 ± 0.12 and 0.72 ± 0.06 on the phase function asymmetry factor (g) in the FUV (1521 Å) and NUV (2320 Å) bands, respectively. We suggest that these halos are a common feature around bright stars and may be used to explore the scattering function of interstellar grains at small angles. |
| Description: | Open Access |
| URI: | http://hdl.handle.net/2248/5489 |
| Appears in Collections: | IIAP Publications |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| Dust-scattered Ultraviolet Halos around Bright Stars | Open Access | 504.08 kB | Adobe PDF |  View/Open |
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