SN 2019muj-a well-observed Type Iax supernova that bridges the luminosity gap of the class
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985815%3A_____%2F21%3A00547621" target="_blank" >RIV/67985815:_____/21:00547621 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1093/mnras/staa3543" target="_blank" >https://doi.org/10.1093/mnras/staa3543</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1093/mnras/staa3543" target="_blank" >10.1093/mnras/staa3543</a>
Alternative languages
Result language
angličtina
Original language name
SN 2019muj-a well-observed Type Iax supernova that bridges the luminosity gap of the class
Original language description
We present early-time (t < +50 d) observations of SN 2019muj (=ASASSN-19tr), one of the best-observed members of the peculiar SN Iax class. Ultraviolet and optical photometric and optical and near-infrared spectroscopic follow-up started from similar to 5 d before maximum light [t(max)(B) on 58707.8 MJD] and covers the photospheric phase. The early observations allow us to estimate the physical properties of the ejecta and characterize the possible divergence from a uniform chemical abundance structure. The estimated bolometric light-curve peaks at 1.05 x 10(42) erg s(-1) and indicates that only 0.031 M-circle dot of Ni-56 was produced, making SN 2019muj a moderate luminosity object in the Iax class with peak absolute magnitude of M-V = -16.4 mag. The estimated date of explosion is t(0) = 58698.2 MJD and implies a short rise time of t(rise) = 9.6 d in B band. We fit of the spectroscopic data by synthetic spectra, calculated via the radiative transfer code TARDIS. Adopting the partially stratified abundance template based on brighter SNe Iax provides a good match with SN 2019muj. However, without earlier spectra, the need for stratification cannot be stated in most of the elements, except carbon, which is allowed to appear in the outer layers only. SN 2019muj provides a unique opportunity to link extremely low-luminosity SNe Iax to well-studied, brighter SNe Iax.
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
<a href="/en/project/GA19-15480S" target="_blank" >GA19-15480S: Expanding Shells near Supermassive Black Holes</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Monthly Notices of the Royal Astronomical Society
ISSN
0035-8711
e-ISSN
1365-2966
Volume of the periodical
501
Issue of the periodical within the volume
1
Country of publishing house
GB - UNITED KINGDOM
Number of pages
22
Pages from-to
1078-1099
UT code for WoS article
000608474800084
EID of the result in the Scopus database
2-s2.0-85100332599