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The symbiotic binary ZZ CMi: Intranight variability and suggested outbursting nature

Zamanov, RK, Stoyanov, KA, Kostov, A, Kurtenkov, A, Nikolov, G, Latev, G, Bode, MF, Martí, J, Luque-Escamilla, PL, Tomov, N, Nikolov, YM and Boeva, SS (2021) The symbiotic binary ZZ CMi: Intranight variability and suggested outbursting nature. Astronomische Nachrichten. ISSN 0004-6337

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Abstract

We present photometric and spectral observations of the symbiotic star ZZ CMi. We detect intranight variability—flickering and smooth variations in U band. The amplitude of the flickering is about (Formula presented.) mag in U band. In the B band, the variability is lower, with amplitude (Formula presented.) mag. We also detect variability in the (Formula presented.) and (Formula presented.) emission lines, and find an indication for outflow with velocity of about 120–150 km/s. The results indicate that ZZ CMi is an accretion-powered symbiotic containing an M4-M6 III cool component with a white dwarf resembling recurrent novae and jet-ejecting symbiotic stars.

Item Type: Article
Additional Information: This is the peer reviewed version of the following article: Zamanov, R. K., Stoyanov, K. A., Kostov, A., et al. 2021, Astron. Nachr., 1. which has been published in final form at https://dx.doi.org/10.1002/asna.202113975. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions
Uncontrolled Keywords: 0201 Astronomical and Space Sciences
Subjects: Q Science > QB Astronomy
Q Science > QC Physics
Divisions: Astrophysics Research Institute
Publisher: Wiley
Date Deposited: 09 Nov 2021 11:34
Last Modified: 09 Nov 2021 11:45
DOI or Identification number: 10.1002/asna.202113975
URI: https://researchonline.ljmu.ac.uk/id/eprint/15756

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