The January 2015 outburst of a red nova in M31

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985815%3A_____%2F15%3A00450609" target="_blank" >RIV/67985815:_____/15:00450609 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1051/0004-6361/201526564" target="_blank" >http://dx.doi.org/10.1051/0004-6361/201526564</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1051/0004-6361/201526564" target="_blank" >10.1051/0004-6361/201526564</a>

Jazyk výsledku

angličtina

Název v původním jazyce

The January 2015 outburst of a red nova in M31

Popis výsledku v původním jazyce

M31N 2015-01a (or M31LRN 2015) is a red nova that erupted in January 2015 - the first event of this kind observed in M31 since 1988. Very few similar events have been confirmed as of 2015. Most of them are considered to be products of stellar mergers. Results of an extensive optical monitoring of the transient in the period January-March 2015 are presented. We present a highly accurate 70 d light curve and astrometry with a 0.05" uncertainty. The colour indices reached a minimum of 2-3 d before peak brightness and rapidly increased afterwards. The spectral type changed from F5I to F0I in 6 d before the maximum and then to K3I in the next 30 d. The luminosity of the transient was estimated to be 8.7(-2.2)(+3.3)x10(5) L-circle dot during the optical maximum. Both the photometric and the spectroscopic results confirm that the object is a red nova, similar to V838 Monocerotis.

Název v anglickém jazyce

The January 2015 outburst of a red nova in M31

Popis výsledku anglicky

M31N 2015-01a (or M31LRN 2015) is a red nova that erupted in January 2015 - the first event of this kind observed in M31 since 1988. Very few similar events have been confirmed as of 2015. Most of them are considered to be products of stellar mergers. Results of an extensive optical monitoring of the transient in the period January-March 2015 are presented. We present a highly accurate 70 d light curve and astrometry with a 0.05" uncertainty. The colour indices reached a minimum of 2-3 d before peak brightness and rapidly increased afterwards. The spectral type changed from F5I to F0I in 6 d before the maximum and then to K3I in the next 30 d. The luminosity of the transient was estimated to be 8.7(-2.2)(+3.3)x10(5) L-circle dot during the optical maximum. Both the photometric and the spectroscopic results confirm that the object is a red nova, similar to V838 Monocerotis.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

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OECD FORD obor

10308 - Astronomy (including astrophysics,space science)

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2015

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Astronomy & Astrophysics

ISSN

1432-0746

e-ISSN

—

Svazek periodika

578

Číslo periodika v rámci svazku

June

Stát vydavatele periodika

FR - Francouzská republika

Počet stran výsledku

5

Strana od-do

"L10/1"-"L10/5"

Kód UT WoS článku

000357502600011

EID výsledku v databázi Scopus

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