A D’-type symbiotic binary in the planetary nebula SMP LMC 88

Iłkiewicz, Krystian; Mikołajewska, Joanna; Miszalski, B.; Kozłowski, S.; Udalski, A.

doi:10.1093/mnras/sty365

Cited by 8 publications

(4 citation statements)

References 54 publications

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“…Symbiotic classification of Gaia18aen is also supported by its position in diagnostic diagram using [O iii] and Balmer lines fluxes and in the He i diagram (for more details see e.g. Iłkiewicz et al 2018a). In both diagrams (see Fig.…”

Section: Spectral Features and Symbiotic Classificationmentioning

confidence: 82%

Gaia18aen: First symbiotic star discovered by Gaia

Merc,

Mikołajewska,

Gromadzki

et al. 2020

Preprint

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Context. Besides the astrometric mission of the Gaia satellite, its repeated and high-precision measurements serve also as an all-sky photometric transient survey. The sudden brightenings of the sources are published as Gaia Photometric Science Alerts and are made publicly available allowing the community to photometrically and spectroscopically follow-up the object. Aims. The goal of this paper was to analyze the nature and derive the basic parameters of Gaia18aen, transient detected at the beginning of 2018. It coincides with the position of the emission line star WRAY 15-136. The brightening was classified as a "nova?" on the basis of subsequent spectroscopic observation. Methods. We have analyzed two spectra of Gaia18aen and collected the available photometry of the object covering the brightenings in 2018 and also the preceding and following periods of quiescence. Based on this observational data, we have derived the parameters of Gaia18aen and discussed the nature of the object. Results. Gaia18aen is the first symbiotic star discovered by Gaia satellite. The system is an S-type symbiotic star and consists of an M giant of a slightly super-solar metallicity, with T eff ∼ 3 500 K, a radius of ∼ 230 R , and a high luminosity L ∼ 7 400 L . The hot component is a hot white dwarf. We tentatively determined the orbital period of the system ∼ 487 days. The main outburst of Gaia18aen in 2018 was accompanied by a decrease in the temperature of the hot component. The first phase of the outburst was characterized by the high luminosity L ∼ 27 000 L , which remained constant for about three weeks after the optical maximum, later followed by the gradual decline of luminosity and increase of temperature. Several re-brightenings have been detected on the timescales of hundreds of days.

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Section: Spectral Features and Symbiotic Classificationmentioning

confidence: 82%

Gaia18aen: First symbiotic star discovered by Gaia

Merc,

Mikołajewska,

Gromadzki

et al. 2020

Preprint

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“…Moreover, the object is classified as a symbiotic binary in all seven classification trees suggested by Akras et al (2019b) to distinguish between symbiotic stars and common mimics. The lack of [O III] lines in the spectra of DeGaPe 35 precludes the use of diagnostic diagrams based on the [O III] and Balmer lines fluxes (e.g., Iłkiewicz Mikołajewska, 2017;Iłkiewicz et al, 2018). We have employed the He I diagram (Fig.…”

Section: Symbiotic Naturementioning

confidence: 99%

DeGaPe 35: Amateur discovery of a new southern symbiotic star

Petit¹,

Merc²,

Gális³

et al. 2023

New Astronomy

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“…This question is not rhetorical, as several direct and indirect observational evidence indicate that mass accretion takes place in several binary central stars of PNe. For instance, binary systems related to accreting WDs such as classical novae (Bode et al 1987;Wesson et al 2008), symbiotic stars (Guerrero et al 2004;Santander-García et al 2004;Corradi et al 2011;Munari et al 2013;Iłkiewicz et al 2018;Akras et al 2019) and supersoft X-ray sources (Kahabka et al 2008;Hutchings et al 2001;Mereghetti et al 2010;Maitra & Haberl 2022) have been observed to be hosted in the centres of PNe. Mass accretion processes have also been suggested to take place at the central stars of the PNe N66 (Hamann et al 2003) and the Eskimo Nebula (Guerrero et al 2019) as a plausible explanation for the two optical outbursts and the variable X-ray emission observed at the centre of the two nebulae, respectively.…”

Section: Introductionmentioning

confidence: 99%

Planetary nebulae hosting accreting white dwarfs: a possible solution for the mysterious cut-off of planetary nebula luminosity function?

Souropanis

Chiotellis

Boumis

et al. 2023

Monthly Notices of the Royal Astronomical Society

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Many binary companions to the central stars of planetary nebulae (PNe) are found to be inflated, perhaps indicating that accretion onto the central star might occur during the PN phase. The discovery of a handful of nova eruptions and supersoft X-ray sources inside PNe supports this hypothesis. In this paper, we investigate the impact that hosting a steadily-accreting WD would have on the properties and evolution of a PN. By pairing the published accreting nuclear-burning WD models with radiation transfer simulations, we extract the time evolution of the emission line spectra and ionization properties of a PN that surrounds a 0.6$\rm M_{\odot }$ steadily nuclear-burning WD as a function of the mass accretion rate. We find that accreting WDs are able to form very extended, high excitation, [O iii]-bright PNe, which are characterised by high nebular electron temperatures. Their properties remain almost invariant with time and their visibility time can be much longer compared to PNe powered by single WDs. We discuss the implications of our findings in explaining specific characteristics observed in PNe. Finally, we examine how accreting WDs affect the planetary nebula luminosity function (PNLF) by covering WD masses in the range of 0.5-0.8$\rm M_{\odot }$ and for various accretion rates within the steady accretion regime. We find that for all but the lowest accretion rates, the [O iii]-luminosities are almost constant and clustered very close to the PNLF cut-off value. Our results suggest that mass-accreting WDs in interacting binaries might play a role in understanding the invariant cut-off of the PNLF.

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A D’-type symbiotic binary in the planetary nebula SMP LMC 88

Cited by 8 publications

References 54 publications

Gaia18aen: First symbiotic star discovered by Gaia

Gaia18aen: First symbiotic star discovered by Gaia

DeGaPe 35: Amateur discovery of a new southern symbiotic star

Planetary nebulae hosting accreting white dwarfs: a possible solution for the mysterious cut-off of planetary nebula luminosity function?

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