2001ApJ...560..912C


C.D.S. - SIMBAD4 rel 1.7 - 2020.11.25CET07:33:24

2001ApJ...560..912C - Astrophys. J., 560, 912-918 (2001/October-3)

The large-scale ionized outflow of CH Cygni.

CORRADI R.L.M., MUNARI U., LIVIO M., MAMPASO A., GONCALVES D.R. and SCHWARZ H.E.

Abstract (from CDS):

Hubble Space Telescope (HST) and ground-based [O II] and [N II] images obtained in the period 1996-1999 reveal a complex, ionized optical nebula around the symbiotic binary CH Cyg extending out to 18" or 5000 AU from the central stars. The observed velocity range of the nebula, derived from long-slit echelle spectra, is 130 km.s–1. In spite of its complex appearance, the velocity data show that the basic morphology of the inner regions of the optical nebula is that of a bipolar outflow extending nearly along the plane of the sky out to some 2000 AU from the center. Even if the extension of this bipolar outflow and its position angle are consistent with those of the radio jet produced in 1984 (extrapolated to the time of our optical imagery), no obvious optical counterpart is visible to the original, dense radio bullets ejected by the system. We speculate that the optical bipolar outflow might be the remnant of the interaction of the bullets with a relatively dense circumstellar medium.

Abstract Copyright:

Journal keyword(s): Stars: Binaries: Symbiotic - ISM: Jets and Outflows - Stars: Individual: Constellation Name: CH Cygni - Stars: Mass Loss

Simbad objects: 9

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Number of rows : 9

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 EM* MWC 560 Sy* 07 25 51.2841922233 -07 44 08.078237799   10.01 9.70 10.60   M4ep+Beq 185 0
2 V* BI Cru Sy* 12 23 25.9928834665 -62 38 15.987814001 12.06 12.18 11.00 10.71   M2/3 124 0
3 WRAY 16-147 Sy* 14 11 52.0611401558 -51 26 24.183936749     14.20     ~ 222 1
4 PN M 2-9 PN 17 05 37.952 -10 08 34.58   12.59 14.7     Be 504 0
5 Hen 3-1341 Sy* 17 08 36.5712745890 -17 26 30.407858350           M3.5 57 0
6 V* RS Oph No* 17 50 13.1592776879 -06 42 28.481553668   12.29 4.30     OB+M2ep 931 0
7 V* CH Cyg Sy* 19 24 33.0697620341 +50 14 29.057625755 8.14 8.77 7.08   5.345 M7IIIab+Be 744 0
8 EM* StHA 190 Sy* 21 41 44.8880611733 +02 43 54.409367196   11.13 10.22     G5e 41 0
9 V* R Aqr Sy* 23 43 49.4629939776 -15 17 04.184232557   8.823 7.683 9.37   M6.5-8.5e 743 0

    Equat.    Gal    SGal    Ecl

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2020.11.25-07:33:24

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