SIMBAD references

2019MNRAS.488.1282W - Mon. Not. R. Astron. Soc., 488, 1282-1300 (2019/September-1)

Variable dust emission by WC type Wolf-Rayet stars observed in the NEOWISE-R survey.

WILLIAMS P.M.

Abstract (from CDS):

Photometry at 3.4 and 4.6 µm of 128 Population I WC type Wolf-Rayet stars in the Galaxy and 12 in the Large Magellanic Cloud (LMC) observed in the WISE NEOWISE-R survey was searched for evidence of circumstellar dust emission and its variation. Infrared spectral energy distributions (SEDs) were assembled, making use of archival r, i, Z, and Y photometry to determine reddening and stellar wind levels for the WC stars found in recent IR surveys and lacking optical photometry. From their SEDs, 10 apparently non-variable stars were newly identified as dust makers, including three, WR 102-22, WR 110-10, and WR 124-10, having subtype earlier than WC8-9, the first such stars to show this phenomenon. The 11 stars found to show variable dust emission include six new episodic dust makers, WR 47c, WR 75-11, WR 91-1, WR 122-14, and WR 125-1 in the Galaxy and HD 38030 in the LMC. Of previously known dust makers, NEOWISE-R photometry of WR 19 captured its rise to maximum in 2018 confirming the 10.1-yr period, that of WR 125 the beginning of a new episode of dust formation suggesting a period near 28.3 yr. while that of HD 36402 covered almost a whole period and forced revision of it to 5.1 yr.

Abstract Copyright: © 2019 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): stars: winds, outflows - stars: Wolf-Rayet

Status in Simbad:  waiting for electronic table

CDS comments: Probable mispirnts: SMG09 807_13 = SMG09 807_16 ([SMG2009] in Simbad); KSF14 1541-187C = [KSF2015] 1541-197C.

Simbad objects: 146

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2020.01.19-15:26:53

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