Gaia23ckh: Symbiotic outburst of the assumed Mira variable V390 Sco
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F24%3A10494043" target="_blank" >RIV/00216208:11320/24:10494043 - isvavai.cz</a>
Result on the web
<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=1dluIIQmM9" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=1dluIIQmM9</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1002/asna.20240017" target="_blank" >10.1002/asna.20240017</a>
Alternative languages
Result language
angličtina
Original language name
Gaia23ckh: Symbiotic outburst of the assumed Mira variable V390 Sco
Original language description
The poorly studied variable star V390 Sco, previously classified as a Mira pulsator, was detected in a brightening event by the ESA Gaia satellite in September 2023. This work presents an analysis of available archival multifrequency photometric data of this target, along with our spectroscopic observations. Our findings lead to the conclusion that V390 Sco is a new symbiotic star identified by Gaia, currently undergoing a classical symbiotic outburst. Additionally, we uncovered three prior outbursts of this system through archival photometry. The outbursts recur approximately every 2330-2400 days, and we hypothesize the periastron passage in an eccentric orbit may trigger them, similarly to the case of BX Mon, DD Mic, or MWC 560. A detailed investigation into the nature of the donor star suggested that V390 Sco is an S-type symbiotic star, likely hosting a less evolved, semiregularly pulsating giant donor, but not a Mira variable.
Czech name
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Czech description
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Classification
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)
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Astronomische Nachrichten
ISSN
0004-6337
e-ISSN
1521-3994
Volume of the periodical
345
Issue of the periodical within the volume
5
Country of publishing house
DE - GERMANY
Number of pages
10
Pages from-to
1-10
UT code for WoS article
001196252700001
EID of the result in the Scopus database
2-s2.0-85189984565