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| Query : 2009MNRAS.395.2221W |
2009MNRAS.395.2221W - Mon. Not. R. Astron. Soc., 395, 2221-2225 (2009/June-1)
Dust formation by the colliding wind WC5+O9 binary WR19 at periastron passage.
WILLIAMS P.M., RAUW G. and VAN DER HUCHT K.A.
Abstract (from CDS):
We present infrared photometry of the episodic dust-making Wolf-Rayet system WR19 (LS3), tracking its fading from a third observed dust formation episode in 2007 and strengthening the view that these episodes are periodic (P = 10.1±0.1y). Radial velocities (RVs) of the O9 component observed between 2001 and 2008 show RV variations consistent with WR19 being a spectroscopic binary of high eccentricity (e = 0.8), having periastron passage in 2007.14, shortly before the phase of dust formation. In this respect, WR19 resembles the archetypical episodic dust-making colliding wind binary system WR140.
Abstract Copyright: © 2009 The Authors. Journal compilation © 2009 RAS
Journal keyword(s): binaries: spectroscopic - circumstellar matter - stars: individual: WR19 - stars: Wolf-Rayet - infrared: stars
Simbad objects: 7
| Number of rows : 7 |
| N | Identifier | Otype |
ICRS (J2000) RA |
ICRS (J2000) DEC |
Mag U | Mag B | Mag V | Mag R | Mag I | Sp type |
#ref
1850 - 2026 |
#notes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | WR 19 | WR* | 10 18 04.9885430688 | -58 16 26.244521868 | 14.80 | 13.85 | WC5+O9 | 74 | 0 | |||
| 2 | WR 98a | WR* | 17 41 13.0411858104 | -30 32 30.409373688 | 18.40 | 15.20 | 13.82 | WC8/9 | 112 | 1 | ||
| 3 | MR 80 | WR* | 18 02 04.1244400656 | -23 37 42.168277056 | 15.002 | 13.155 | 12.056 | WC9 | 241 | 1 | ||
| 4 | HD 165763 | WR* | 18 08 28.4692108104 | -21 15 11.183076540 | 7.16 | 7.54 | 7.82 | 8.55 | WC6 | 286 | 0 | |
| 5 | HD 169010 | WR* | 18 23 16.3427231112 | -13 43 26.102574732 | 13.53 | 12.99 | 12.02 | 11.95 | WC | 82 | 0 | |
| 6 | HD 192641 | WR* | 20 14 31.7666855880 | +36 39 39.598210224 | 7.80 | 8.20 | 7.91 | WC7pd+O9V | 347 | 0 | ||
| 7 | HD 193793 | WR* | 20 20 27.9757908696 | +43 51 16.286840244 | 6.90 | 7.25 | 6.85 | 4.58 | WC7pd+O5.5fc | 754 | 0 |
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