The path to Z And-type outbursts: The case of V426 Sagittae (HBHA 1704-05)

25 Mar 2020 Skopal A. Shugarov S. Yu. Munari U. Masetti N. Marchesini E. Komzik R. M. Kundra E. Shagatova N. Tarasova T. N. Buil C. Boussin C. Shenavrin V. I. Hambsch F. -J. Dallaporta S. Frigo A. Garde O. Zubareva A. Dubovský P. A. Kroll P.

The star V426 Sge (HBHA~1704-05), originally classified as an emission-line object and a semi-regular variable, brightened at the beginning of August 2018, showing signatures of a symbiotic star outburst. We aim to confirm the nature of V426 Sge as a classical symbiotic star, determine the photometric ephemeris of the light minima, and suggest the path from its 1968 symbiotic nova outburst to the following 2018 Z And-type outburst... (read more)

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  • SOLAR AND STELLAR ASTROPHYSICS
  • HIGH ENERGY ASTROPHYSICAL PHENOMENA