2020RNAAS...4..167G

Query : 2020RNAAS...4..167G

2020RNAAS...4..167G - Research Notes of the AAS, 4, 167 (2020/September-0)

Rapid Variability in the Wind from the White Dwarf Merger Candidate J005311.

GARNAVICH P., LITTLEFIELD C., POGGE R. and WOOD C.

Abstract (from CDS):

We analyze time-series spectroscopy of the white dwarf merger candidate J005311 and confirm the unique nature of its optical spectrum. We detect an additional broad emission feature peaking at 343 nm that was predicted in the Gvaramadze et al. () models. Comparing ten spectra taken with the Large Binocular Telescope, we find significant variability in the profile of the strong O VI 381.1/383.4 nm emission feature. This appears to be caused by rapidly shifting subpeaks generated by clumpiness in the stellar wind of J005311. This line variability is similar to what is seen in many Wolf-Rayet stars. However, in J005311, the rate of motion of the subpeaks appears exceedingly high as they can reach 16,000 km s^–1 in less than two hours.

Journal keyword(s): White dwarf stars - Wolf-Rayet stars - Stellar mergers - Evolved stars - Stellar winds

Simbad objects: 1

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View the references in ADS

Number of rows : 1

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	IRAS 00500+6713	WR*	00 53 11.2058008512	+67 30 02.381310972				15.58		WO	27	0

Query : 2020RNAAS...4..167G

Basic data :

IRAS 00500+6713 -- Wolf-Rayet

* (UCAC4,IPHAS,...), MIR (WISEA,WISE), IR (IRAS,IRCO), WR* (2019Natur), NIR (2MASS)

00 53 11.2058008512 +67 30 02.381310972 (Optical) [ 0.0197 0.0210 90 ] A 2020yCat.1350....0G

00 50 01.6945743047 +67 13 45.780501414 [ 0.0197 0.0210 90 ]

123.0997809902305 +04.6294838736920 [ 0.0197 0.0210 90 ]

-2.584 -0.988 [0.025 0.028 90] A 2020yCat.1350....0G

0.4065 [0.0259] A 2020yCat.1350....0G

WO C 2019Natur.569..684G

R 15.58 [0.17] E 2012yCat.1322....0Z

G 15.406899 [0.003166] C 2020yCat.1350....0G

J 13.854 [0.031] C 2003yCat.2246....0C

H 13.633 [0.042] C 2003yCat.2246....0C

K 13.197 [0.039] C 2003yCat.2246....0C

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`UCAC4 788-002438`	`IRCO 2536`	`WISEA J005311.13+673002.1`	`Gaia DR2 526287189172936320`
`IPHAS J005311.21+673002.1`	`2MASS J00531123+6730023`	`WISE J005311.24+673002.4`
`IRAS 00500+6713`	`TIC 351685700`	`Gaia DR3 526287189172936320`

References (27 between 1850 and 2026) (Total 27)
Simbad bibliographic survey began in 1850 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system).

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Data at NED - NASA/IPAC Extragalactic Database : IRAS 00500+6713

Link by name to the catalogue in VizieR :

`UCAC4 788-002438`	`IRAS 00500+6713`	`2MASS J00531123+6730023`	`WISEA J005311.13+673002.1`	`WISE J005311.24+673002.4`
`Gaia DR3 526287189172936320`	`Gaia DR2 526287189172936320`

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