2016MNRAS.456.2558L


C.D.S. - SIMBAD4 rel 1.7 - 2020.04.09CEST16:06:33

2016MNRAS.456.2558L - Mon. Not. R. Astron. Soc., 456, 2558-2565 (2016/March-1)

Spectroscopic view on the outburst activity of the symbiotic binary AG Draconis.

LEEDJARV L., GALIS R., HRIC L., MERC J. and BURMEISTER M.

Abstract (from CDS):

Variations of the emission lines in the spectrum of the yellow symbiotic star AG Draconis (AG Dra) have been studied for over 14 yr (1997-2011), using more than 500 spectra obtained with the 1.5-m telescope at Tartu Observatory, Estonia. The time interval covered includes the major (cool) outburst of AG Dra that started in 2006. The main findings can be summarized as follows. (i) The cool and hot outbursts of AG Dra can be distinguished from the variations of optical emission lines. (ii) The Raman scattered emission line of O vi at λ6825 almost disappeared during the cool outburst. (iii) The lower excitation emission lines did not change significantly during the cool outburst, but they do vary in hot outbursts and also follow orbital motion. (iv) The similarity of variations in AG Dra to those in the prototypical symbiotic star Z Andromedae allows us to suggest that a combination nova model proposed for the latter object might also be responsible for the outburst behaviour of AG Dra.

Abstract Copyright: © 2015 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society (2015)

Journal keyword(s): stars: binaries: symbiotic - stars: individual: AG Draconis

Simbad objects: 17

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Number of rows : 17

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 M 110 GiG 00 40 22.0544552438 +41 41 07.496294862   8.92 8.07     ~ 1200 1
2 V* EG And Sy* 00 44 37.1876042586 +40 40 45.703033630 10.54 8.93 7.22     M2.4III 263 0
3 NAME SMC G 00 52 38.0 -72 48 01   2.79 2.2     ~ 9301 1
4 LHA 115-S 18 Em* 00 54 09.5415603586 -72 41 43.291670748 12.94 13.48 13.82   12.55 B[e] 73 0
5 V* AX Per Sy* 01 36 22.6996835649 +54 15 02.411289057   11.45 10.67 11.04   M3IIIep+A0 274 1
6 V* RW Hya Sy* 13 34 18.1290422733 -25 22 48.885732567   11.51 10.00     M1/2IIIe 186 0
7 V* T CrB Sy* 15 59 30.1619486506 +25 55 12.607985109 2.69 2.10 2.00     M3III+p 643 0
8 V* AG Dra Sy* 16 01 41.0125687664 +66 48 10.131181273 11.50 11.06 9.74 8.52   K3IIIep 474 0
9 Hen 3-1341 Sy* 17 08 36.5712745890 -17 26 30.407858350           M3.5 56 0
10 V* RS Oph No* 17 50 13.1592776879 -06 42 28.481553668   12.29 4.30     OB+M2ep 918 0
11 V* BF Cyg Sy* 19 23 53.5009795759 +29 40 29.173306238   10.52 9.30     Bep+M5III 264 0
12 V* CI Cyg Al* 19 50 11.8344401438 +35 41 03.000692799   11.97 9.90     Bep+M5III 403 0
13 EM* AS 373 Sy* 19 57 05.0184580246 +39 49 36.085051314         10.592 M6/8e 566 0
14 V* RR Tel Sy* 20 04 18.5382966387 -55 43 33.154224077 9.93 11.33 10.81     WN3-6.5+M3.5-7 514 0
15 V* PU Vul No* 20 21 13.3112218215 +21 34 18.693825946   11.13 10.87     A4II-F8Iab+M6IIIe 291 0
16 V* AG Peg Sy* 21 51 01.9733955799 +12 37 32.124041390   6.76 6.00     M3IIIe 490 0
17 V* Z And Sy* 23 33 39.9551345052 +48 49 05.973842875 8.86 9.35 8.00     M2III+B1eq 499 0

    Equat.    Gal    SGal    Ecl

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2020.04.09-16:06:33

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