The symbiotic binary ZZ CMi: intranight variability and suggested outbursting nature
arXiv:2103.06625 · doi:10.1002/asna.202113975
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 0.10-0.20 mag in U band. In the B band the variability is lower, with amplitude less than 0.03 mag. We also detect variability in the H-alpha and H-beta 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 an white dwarf resembling recurrent novae and jet-ejecting symbiotic stars. [The data are available on www.astro.bas.bg/~rz/ZZCMi/ZZCMi.tar.gz]
arXiv commentaccepted in Astronomische Nachrichten / Astronomical Notes
References in corpus (21)
- Estimating distances from parallaxes IV: Distances to 1.33 billion stars in Gaia Data Release 2
- The GMRT 150 MHz All-sky Radio Survey: First Alternative Data Release TGSS ADR1
- Evidence for the White Dwarf Nature of Mira B
- Symbiotic stars in X-rays
- Disentangling the composite continuum of symbiotic binaries I. S-type systems
- Synthetic Spectra and Color-Temperature Relations of M Giants
- A census of symbiotic stars in the 2MASS, WISE and Gaia surveys
- A Search for Rapid Photometric Variability in Symbiotic Binaries
- Discovery of a Magnetic White Dwarf in the Symbiotic Binary Z Andromedae
- The 2015 super-active state of recurrent nova T CrB and the long term evolution after the 1946 outburst
- Resumption of mass accretion in RS Oph
- Regulation of accretion by its outflow in a symbiotic star: the 2016 outflow fast state of MWC 560
- CH Cygni II: Optical Flickering from an Unstable Disk
- Recent photometry of symbiotic stars - XIII
- Binarity and Accretion in AGB Stars: HST/STIS Observations of UV Flickering in Y Gem
- The recurrent nova RS Oph - simultaneous B and V band observations of the flickering variability
- X-rays from the Mira AB Binary System
- Discovery of fast, large-amplitude optical variability of V648 Car (=SS73-17)
- Rapid H-alpha variability in T Coronae Borealis
- Flickering of the jet-ejecting symbiotic star MWC 560
- Photometric search of orbital periods in symbiotic stars