2007A&A...463..703G


C.D.S. - SIMBAD4 rel 1.7 - 2021.04.16CEST14:04:01

2007A&A...463..703G - Astronomy and Astrophysics, volume 463, 703-706 (2007/2-4)

On the nature of the cool component of MWC 560.

GROMADZKI M., MIKOLAJEWSKA J., WHITELOCK P.A. and MARANG F.

Abstract (from CDS):

MWC 560 (V694 Mon) is one of the most enigmatic symbiotic system with a very active accretion-powered hot component. Such activity can be supported only by a luminous asymptotic giant branch star, i.e. a Mira or SR variable, with a high mass-loss rate. It is also a very unusual jet source because the jet axis lies practically parallel to the line of sight. The aims of our study are the determination of the evolutionary status of the cool component of MWC 560. Our methods involve analysis of near-IR JHKL and optical light curves. The cool component of MWC 560 pulsates with a period of ∼340 days, and it is probably a red SR variable on the thermally pulsing AGB. The high mass-loss rate expected for such a star is sufficient to power the observed activity of the hot companion.

Abstract Copyright:

Journal keyword(s): stars: binaries: symbiotic - stars: oscillations - stars: late-type - stars: mass-loss - stars: individual: MWC 560 (V694 Mon) - infrared: stars

VizieR on-line data: <Available at CDS (J/A+A/463/703): table1.dat>

Simbad objects: 2

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Number of rows : 2

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 * omi Cet Mi* 02 19 20.79210 -02 58 39.4956   7.63 6.53 5.03   M5-9IIIe+DA 1461 0
2 EM* MWC 560 Sy* 07 25 51.2841922233 -07 44 08.078237799   10.01 9.70 10.60   M4ep+Beq 188 0

    Equat.    Gal    SGal    Ecl

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2021.04.16-14:04:01

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