Recurrent and symbiotic novae in the OGLE data

Abstract

We analyse long-term optical photometry for two Galactic recurrent novae (V745 Sco and V3890 Sgr) and one Large Magellanic Cloud object (Nova LMC 1990b) observed over several years by the Optical Gravitational Lensing Experiment (OGLE) sky survey. We do not find variability with the previously claimed orbital period of V745 Sco. This voids previous findings based on this value (e.g. the distance determination). The quiescence variability of this object is dominated by semiregular pulsations of the red giant secondary (with periods of 136.5 and 77.4 d). The photometry of Nova LMC 1990b reveals an unnoticed eruption in 2010 and eclipse-like variability in quiescence with a period of 1.26432(8) d. The photometric properties make this object very similar to U Sco. Finally, we describe the eruptions of two likely symbiotic novae, V5590 Sgr and OGLE-2011-BLG-1444. The secondary of V5590 Sgr is a Mira star with pulsation period of 236 d.

8 pages, 7 figures, published in MNRAS

References in corpus (2)

• An eclipsing binary distance to the Large Magellanic Cloud accurate to 2 per cent
• Near-IR studies of recurrent nova V745 Scorpii during its 2014 outburst

Cited by in corpus (8)

• A census of symbiotic stars in the 2MASS, WISE and Gaia surveys
• OGLE-III Microlensing Events and the Structure of the Galactic Bulge
• A NuSTAR observation of the fast symbiotic nova V745 Sco in outburst
• Chandra High Energy Transmission Gratings Spectra of V3890 Sgr
• The January 2016 eruption of recurrent nova LMC 1968
• Early multiwavelength analysis of the recurrent nova V745 Sco
• Classical Novae in the ASKAP Pilot Surveys
• Review of light curves of novae in the modified scales. I. Recurrent novae