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| Query : 2011ApJ...734...13M |
2011ApJ...734...13M - Astrophys. J., 734, 13 (2011/June-2)
Dust-scattered ultraviolet halos around bright stars.
MURTHY J. and HENRY R.C.
Abstract (from CDS):
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.
Abstract Copyright: ∼
Journal keyword(s): dust, extinction - ISM: clouds - ultraviolet: ISM
VizieR on-line data: <Available at CDS (J/ApJ/734/13): table1.dat table3.dat>
Simbad objects: 8
| Number of rows : 8 |
| N | Identifier | Otype |
ICRS (J2000) RA |
ICRS (J2000) DEC |
Mag U | Mag B | Mag V | Mag R | Mag I | Sp type |
#ref
1850 - 2024 |
#notes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | * gam Peg | bC* | 00 13 14.1523490172 | +15 11 00.954346538 | 1.75 | 2.61 | 2.84 | 2.94 | 3.13 | B2IV | 693 | 0 |
| 2 | * alf Eri | Be* | 01 37 42.84548 | -57 14 12.3101 | -0.36 | 0.30 | 0.46 | 0.49 | 0.60 | B6Vpe | 473 | 1 |
| 3 | IC 435 | RNe | 05 43 00.5 | -02 18 45 | ~ | 46 | 0 | |||||
| 4 | * bet CMa | bC* | 06 22 41.9853527 | -17 57 21.307352 | 0.77 | 1.73 | 1.97 | 2.11 | 2.35 | B1II-III | 715 | 0 |
| 5 | * alf CMa | SB* | 06 45 08.91728 | -16 42 58.0171 | -1.51 | -1.46 | -1.46 | -1.46 | -1.43 | A0mA1Va | 1529 | 0 |
| 6 | * eps CMa | * | 06 58 37.54876 | -28 58 19.5102 | 0.36 | 1.29 | 1.50 | 1.59 | 1.80 | B1.5II | 488 | 0 |
| 7 | * alf Vir | bC* | 13 25 11.57937 | -11 09 40.7501 | -0.20 | 0.74 | 0.97 | 1.06 | 1.30 | B1V | 855 | 2 |
| 8 | NAME Ophiuchus Molecular Cloud | SFR | 16 28 06 | -24 32.5 | ~ | 3629 | 1 |
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