DeGaPe 35: Amateur discovery of a new southern symbiotic star

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F23%3A10476071" target="_blank" >RIV/00216208:11320/23:10476071 - isvavai.cz</a>
Result on the web
<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=qMeJZ7vUcN" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=qMeJZ7vUcN</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.newast.2022.101943" target="_blank" >10.1016/j.newast.2022.101943</a>

Result language
angličtina
Original language name
DeGaPe 35: Amateur discovery of a new southern symbiotic star
Original language description
In this work, we present the discovery and characterization of a new southern S-type symbiotic star, DeGaPe 35. We have obtained the low-resolution spectroscopic observations and supplemented them with the photometry from Gaia DR3 and other surveys. The optical spectra of this target show prominent emission lines, including highly ionized [Fe VII] and O VI lines. The cool component of this symbiotic binary is an M4-5 giant with Teff similar to 3 380 - 3 470 K and luminosity similar to 3 x 103 L AE (for the adopted distance of 3 kpc), the hot component is a shell-burning white dwarf. The photometric observations of the Gaia satellite, published recently in the Gaia DR3 suggested the variability with the period of about 700-800 days, that we tentatively attributed to the orbital motion of the binary.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10308 - Astronomy (including astrophysics,space science)

Publication year
2023
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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