2005MNRAS.360.1257M


C.D.S. - SIMBAD4 rel 1.7 - 2020.11.25CET07:01:11

2005MNRAS.360.1257M - Mon. Not. R. Astron. Soc., 360, 1257-1261 (2005/July-2)

Bipolar jet growth and decline in Hen 3-1341: a direct link to fast wind and outburst evolution.

MUNARI U., SIVIERO A. and HENDEN A.

Abstract (from CDS):

We report on and investigate the evolution and disappearance in the symbiotic star Hen 3-1341 of collimated bipolar jets, which take the form of symmetrically displaced components of emission lines. From modelling of the emission-line spectrum it turns out that the accreting white dwarf (WD) in quiescence has TWD∼ 1.2x105 K and RWD∼ 0.14 R, for a luminosity of 3.8x103 L, and it is stably burning hydrogen on the surface at a rate of, feeding ionizing photons to a radiation bounded circumstellar nebula extending for ∼17 au. The WD underwent a multimaxima outburst lasting from 1998 to 2004 during which its H-burning envelope reacted to a probable small increase in the mass accretion by expanding and cooling to Teff∼ 1x104 K and R∼ 20 R, mimicking an A-type giant that radiated a total of ∼6x1044 erg, at an average rate of ∼1 x103 L. Bipolar jets developed at the time of outburst maximum and their strength declined in parallel with the demise of the fast wind from the inflated WD, finally disappearing when the wind stopped halfway to quiescence, marking a 1:1 correspondence between jets presence and feeding action of the fast wind. The total mass in the jets was Mjet∼ 2.5 x10–7 Mfor a kinetic energy of Ekinjet∼ 1.7x1042 (sini)–1 erg, corresponding to ∼0.3(sini)–1 per cent of the energy radiated during the whole outburst. We suggest that the spectroscopic search for jets in symbiotic stars could pay higher dividends if focused on the outburst phases characterized by maximum wind intensity.

Abstract Copyright: 2005 RAS

Journal keyword(s): binaries: symbiotic - stars: mass-loss - stars: winds, outflows - ISM: jets and outflows

Simbad objects: 13

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Number of rows : 13

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 1447 0
2 EM* MWC 560 Sy* 07 25 51.2841922233 -07 44 08.078237799   10.01 9.70 10.60   M4ep+Beq 185 0
3 WRAY 16-147 Sy* 14 11 52.0611401558 -51 26 24.183936749     14.20     ~ 222 1
4 V* T CrB Sy* 15 59 30.1619486506 +25 55 12.607985109   11.516 10.247 9.70   M3IIIe_sh 657 0
5 V* AG Dra Sy* 16 01 41.0125687664 +66 48 10.131181273 11.50 11.06 9.74 8.52   K3IIIep 477 0
6 HD 149427 PN 16 37 42.6988994632 -55 42 26.395035443   12.75 11.23     ~ 97 0
7 Hen 3-1341 Sy* 17 08 36.5712745890 -17 26 30.407858350           M3.5 57 0
8 V* RS Oph No* 17 50 13.1592776879 -06 42 28.481553668   12.29 4.30     OB+M2ep 931 0
9 V* CH Cyg Sy* 19 24 33.0697620341 +50 14 29.057625755 8.14 8.77 7.08   5.345 M7IIIab+Be 744 0
10 V* V1329 Cyg Sy* 20 51 01.2322054447 +35 34 54.111427235           M4IIIe 296 2
11 EM* StHA 190 Sy* 21 41 44.8880611733 +02 43 54.409367196   11.13 10.22     G5e 41 0
12 V* Z And Sy* 23 33 39.9551345051 +48 49 05.973842875 8.86 9.35 8.00     M2III+B1eq 503 0
13 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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2020.11.25-07:01:11

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