2021PASJ...73L..37A

Query : 2021PASJ...73L..37A

2021PASJ...73L..37A - Publ. Astron. Soc. Jap., 73, L37-L41 (2021/December-0)

Optical spectroscopic observations of a symbiotic star MWC 560 in the mass accumulation phase.

ANDO K., FUKUDA N., SATO B., MAEHARA H. and IZUMIURA H.

Abstract (from CDS):

There are about a dozen symbiotic stars known to produce high-velocity jets during outbursts. MWC 560 (V694 Mon) is a symbiotic star that seems to show a permanent jet. After showing an unexpected brightening in 2018 November, it has continued to brighten until 2021 and is currently in the brightest state ever. We have been conducting long-term high-dispersion spectroscopic monitoring of this object since 2016 March. An emission wing with v_FWHM ≃ 700 km s^–1 in the hydrogen Balmer line at an unexpected brightening event in 2018 was reported by Ando et al. (, PASJ, 73, L1). In subsequent continuous observations, this emission wing was no longer seen on 2019 February 6. The absorption lines seen in the hydrogen Balmer lines are gradually deepening and spreading to the slower side of the velocity, and the outflow velocity is becoming slower. The expanding component generated by the outburst was initially observed in the emission wing just after the 2018 outburst, got gradually cooler, and was observed in the absorption line after 2019.

Abstract Copyright: © The Author(s) 2021. Published by Oxford University Press on behalf of the Astronomical Society of Japan.

Journal keyword(s): binaries: symbiotic - novae, cataclysmic variables - stars: individual (MWC 560)

Simbad objects: 1

Full paper

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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	EM* MWC 560	Sy*	07 25 51.2842107720	-07 44 08.084175396		10.01	9.70	10.60		M4ep+Beq	223	0

Query : 2021PASJ...73L..37A

Basic data :

EM* MWC 560 -- Symbiotic Star

Sy* (), * (1971PW&SO,TYC,...), Em* (EM*,SS73), V* (V*,AAVSO), CV* (2012A&A), LP? (2022yCat), EmO (MHA), NIR (2MASS), IR (IRAS)

07 25 51.2842107720 -07 44 08.084175396 (Optical) [ 0.0302 0.0251 90 ] A 2020yCat.1350....0G

07 23 25.9495713674 -07 38 06.349284009 [ 0.0302 0.0251 90 ]

223.7598477915980 +04.0462368871396 [ 0.0302 0.0251 90 ]

2.067 0.552 [0.034 0.027 90] A 2020yCat.1350....0G

0.424 [0.0352] A 2020yCat.1350....0G

M4ep+Beq D 1973AJ.....78..687B

B 10.01 [0.03] D 2000A&A...355L..27H

V 9.70 [0.03] D 2000A&A...355L..27H

R 10.60 [0.12] E 2012yCat.1322....0Z

G 9.558322 [0.014035] C 2020yCat.1350....0G

J 6.452 [0.030] C 2003yCat.2246....0C

H 5.471 [0.021] C 2003yCat.2246....0C

K 5.069 [0.023] C 2003yCat.2246....0C

g 10.24 [0.09] D 2012yCat.1322....0Z

r 9.76 [0.17] D 2012yCat.1322....0Z

i 8.95 [0.17] D 2012yCat.1322....0Z

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`TYC 5396-1135-1`	`IRAS 07233-0737`	`SS73 5`	`Gaia DR3 3054628264738851456`
`ALS 391`	`LS 391`	`TIC 403675153`	`Gaia DR1 3054628260437829760`
`CSI-07-07234`	`2MASS J07255128-0744080`	`UCAC4 412-031053`	`Gaia DR2 3054628260437829760`
*`EM MWC 560`**	`MHA 61-14`	*`V V694 Mon`**
`GSC 05396-01135`	`PLX 1750.02`	`AAVSO 0721-07`

References (223 between 1850 and 2026) (Total 223)
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 : EM* MWC 560

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`TYC 5396-1135-1`	`ALS 391`	`GSC 05396-01135`	`IRAS 07233-0737`	`LS 391`
`2MASS J07255128-0744080`	`UCAC4 412-031053`	*`V V694 Mon`**	`Gaia DR3 3054628264738851456`	`Gaia DR1 3054628260437829760`
`Gaia DR2 3054628260437829760`

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