The physical properties of T Pyx as measured by MUSE: I. The geometrical distribution of the ejecta and the distance to the remnant
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985815%3A_____%2F24%3A00586939" target="_blank" >RIV/67985815:_____/24:00586939 - isvavai.cz</a>
Result on the web
<a href="https://hdl.handle.net/11104/0354892" target="_blank" >https://hdl.handle.net/11104/0354892</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1051/0004-6361/202348875" target="_blank" >10.1051/0004-6361/202348875</a>
Alternative languages
Result language
angličtina
Original language name
The physical properties of T Pyx as measured by MUSE: I. The geometrical distribution of the ejecta and the distance to the remnant
Original language description
Context. T Pyx is one of the most enigmatic recurrent novae, and it has been proposed as a potential Galactic type-Ia supernova progenitor. Aims. Using spatially resolved data obtained with MUSE, we characterized the geometrical distribution of the material expelled in previous outbursts surrounding the white dwarf progenitor. Methods. We used a 3D model for the ejecta to determine the geometric distribution of the extended remnant. We also calculated the nebular parallax distance (d = 3.55 +/- 0.77 kpc) based on the measured velocity and spatial shift of the 2011 bipolar ejecta. Our findings confirm previous results, including the data from the Gaia mission. Results. The remnant of T Pyx can be described by a two-component model consisting of a tilted ring at i = 63.7 relative to its normal vector and fast bipolar ejecta perpendicular to the plane of the equatorial ring. Conclusions. We found an upper limit for the bipolar outflow ejected mass in 2011 of the bipolar outflow of M-ej,M- b < (3.0 +/- 1.0)x10(-6) M-circle dot, which is lower than previous estimates given in the literature. However, only a detailed physical study of the equatorial component can provide an accurate estimate of the total ejecta of the last outburst, a fundamental step to understanding if T Pyx will end its life as a type-Ia supernova.
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
Astronomy & Astrophysics
ISSN
0004-6361
e-ISSN
1432-0746
Volume of the periodical
686
Issue of the periodical within the volume
June
Country of publishing house
FR - FRANCE
Number of pages
9
Pages from-to
A72
UT code for WoS article
001235820200006
EID of the result in the Scopus database
2-s2.0-85195030197