The aftermath of nova Cen 2013 (V1369 Cen)

Abstract

Context: Classical nova progenitors are cataclysmic variables and very old novae are observed to match high mass transfer rate and (relatively) long orbital period systems. However, the aftermath of a classical nova has never been studied in detail. Aims: To probe the aftermath of a classical nova explosion in cataclysmic variables and observe as the binary system relaxes to quiescence. Methods: We used multi-wavelength time resolved optical and near-infrared spectroscopy for a bright, well studied classical nova five years after outburst. We were able to disentangle the contribution of the ejecta at this late epoch using its previous characterization, separating the ejecta emission from that of the binary system. Results: We determined the binary orbital period (P=3.76 hr), the system separation and mass ratio (q>=0.17 for an assumed white dwarf mass of 1.2 solar masses). We find evidence of an irradiated secondary star and no unambiguous signature of an accretion disk, although we identify a second emission line source tied to the white dwarf with an impact point. The data are consistent with a bloated white dwarf envelope and the presence of unsettled gas within the white dwarf Roche lobe. Conclusions: At more than 5 years after eruption, it appears that this classical nova has not yet relaxed.

arXiv commentAccepted for publication in A&A. Main body of manuscript: 10 pages and 10 figures; 16 pages including appendix tables

References in corpus (32)

• Estimating distances from parallaxes IV: Distances to 1.33 billion stars in Gaia Data Release 2
• Accurate masses and radii of normal stars: modern results and applications
• The NextGen Model Atmosphere grid for $3000\le \Teff \le 10000\K$
• X-shooter, the new wide band intermediate resolution spectrograph at the ESO Very Large Telescope
• Molecfit: A general tool for telluric absorption correction. I. Method and application to ESO instruments
• The Evolution of Cataclysmic Variables as Revealed by their Donor Stars
• An Extended Grid of Nova Models: II. The Parameter Space of Nova Outbursts
• Spectroscopic Analysis of DA White Dwarfs: Stark Broadening of Hydrogen Lines Including Non-Ideal Effects
• X-ray Emissions from Accreting White Dwarfs: a Review
• An Exploration of the Paradigm for the 2-3 Hour Period Gap in Cataclysmic Variables
• The Thermonuclear Runaway and the Classical Nova Outburst
• Growing White Dwarfs to the Chandrasekhar Limit: The Parameter Space of the Single Degenerate SNIa Channel
• The mass of the white dwarf in the recurrent nova U Scorpii
• 123-321 Models of Classical Novae
• A UV and optical study of 18 old novae with Gaia DR2 distances: mass accretion rates, physical parameters, and MMRD
• Spectroscopic search for new SW Sextantis stars in the 3-4 hour orbital period range -- I
• From X-ray dips to eclipse: Witnessing disk reformation in the recurrent nova USco
• Model Atmospheres for Irradiated Stars in pre-Cataclysmic Variables
• V1369 Cen high resolution panchromatic late nebular spectra in the context of a unified picture for nova ejecta
• Eclipses During the 2010 Eruption of the Recurrent Nova U Scorpii
• The SW Sex enigma
• The panchromatic spectroscopic evolution of the classical CO nova V339 Del (Nova Del 2013) until X-ray turnoff
• HR Del remnant anatomy using 2-D spectral data and 3-D photoionization shell models
• Orbital periods of cataclysmic variables identified by the SDSS. V. VLT, NTT and Magellan observations of nine equatorial systems
• The January 2016 eruption of recurrent nova LMC 1968
• Stellar parameters for the central star of the planetary nebula PRTM 1 using the German Astrophysical Virtual Observatory service TheoSSA
• VV Pup in a low state: secondary-star irradiation or stellar activity?
• The ambiguous transient ASASSN-17hx. A possible nova-impostor
• Life after eruption VIII: The orbital periods of novae
• Catching VY Sculptoris in a low state
• The orbital period of the V Sge star candidate QU Carinae
• Discovery of X-ray Emission in the Old Classical Nova DK Lacertae

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