2024RNAAS...8..306M


Query : 2024RNAAS...8..306M

2024RNAAS...8..306M - Research Notes of the AAS, 8, 306 (2024/December-0)

The Symbiotic Star V694 Mon has Transitioned from the Accreting-only State to the Steady Burning Phase.

MUNARI U.

Abstract (from CDS):

I propose that the drastic photometric and spectroscopic changes affecting the symbiotic star V694 Mon since 2018, are due to its transition from the accreting-only state to steady hydrogen-burning on the surface of the white dwarf (WD), closely mimicking the pattern followed by V4368 Sgr. The phase of peak optical brightness and weakest emission lines has probably been reached in early 2024. The high-velocity absorptions powered by jet-ejection and the wild flickering, which dominated the century-long quiescence, should not reappear as long has nuclear burning will hold (timescale of decades). The 3500 L⊙ burning luminosity suggests a 0.60 M⊙ mass for the WD.

Abstract Copyright: © 2024. The Author(s). Published by the American Astronomical Society.

Journal keyword(s): Classical novae - Symbiotic binary stars - Hydrogen burning - Stellar accretion

Simbad objects: 7

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Number of rows : 7
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
2 V* T CrB Sy* 15 59 30.1622265912 +25 55 12.613382940   11.516 10.247 9.70   M3IIIe_sh 810 0
3 HD 148743 pA* 16 30 30.0183563616 -07 30 52.031445516 6.94 6.824 6.461     A7Ib 103 0
4 V* RS Oph Sy* 17 50 13.1591484960 -06 42 28.480729788   11.884 10.776 11.228   K5.5/M0IIIe 1163 0
5 V* V745 Sco Sy* 17 55 22.2260994408 -33 14 58.551839808     17.987   13.353 M2/M6IIIe 265 1
6 V* V3890 Sgr No* 18 30 43.2877623168 -24 01 08.944843980     15.944 14.798 12.611 M5III 232 0
7 V* V4368 Sgr Sy? 18 54 40.3170584712 -19 41 59.691347232   12.70 11.97 10.36 9.64 F5Ia/Iabe 28 0

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