2024Sci...386.1301V

Query : 2024Sci...386.1301V

2024Sci...386.1301V - Science, 386, 1301-1305 (2024/December-0)

Sun-like stars produce superflares roughly once per century.

VASILYEV V., REINHOLD T., SHAPIRO A.I., USOSKIN I., KRIVOVA N.A., MAEHARA H., NOTSU Y., BRUN A.S., SOLANKI S.K. and GIZON L.

Abstract (from CDS):

Stellar superflares are energetic outbursts of electromagnetic radiation that are similar to solar flares but release more energy, up to 1036 erg on main-sequence stars. It is unknown whether the Sun can generate superflares and, if so, how often they might occur. We used photometry from the Kepler space observatory to investigate superflares on other stars with Sun-like fundamental parameters. We identified 2889 superflares on 2527 Sun-like stars, out of 56,450 observed. This detection rate indicates that superflares with energies >1034 erg occur roughly once per century on stars with Sun-like temperature and variability. The resulting stellar superflare frequency-energy distribution is consistent with an extrapolation of the Sun's flare distribution to higher energies, so we suggest that both are generated by the same physical mechanism.

Journal keyword(s):

Simbad objects: 1

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Number of rows : 1

N	Identifier	Otype	ICRS (J2000) RA	ICRS (J2000) DEC	Mag U	Mag B	Mag V	Mag R	Mag I	Sp type	#ref 1850 - 2026	#notes
1	UCAC4 671-078582	Er*	19 49 12.3134601408	+44 02 46.343707548		15.687	14.941	14.714		~	3	0

Query : 2024Sci...386.1301V

Basic data :

UCAC4 671-078582 -- Eruptive Variable

* (UCAC4,KIC,...), Er* (2022A&A), NIR (2MASS), MIR (WISE)

19 49 12.3134601408 +44 02 46.343707548 (Optical) [ 0.0134 0.0151 90 ] A 2020yCat.1350....0G

19 47 35.9013210877 +43 55 09.852034372 [ 0.0134 0.0151 90 ]

078.1135539491237 +09.0604779526143 [ 0.0134 0.0151 90 ]

6.251 -0.539 [0.018 0.019 90] A 2020yCat.1350....0G

1.3155 [0.0153] A 2020yCat.1350....0G

B 15.687 [0.03] D 2012yCat.1322....0Z

V 14.941 [0.06] D 2012yCat.1322....0Z

R 14.714 [0.04] D 2012yCat.1322....0Z

G 14.694060 [0.002764] C 2020yCat.1350....0G

J 13.466 [0.022] C 2003yCat.2246....0C

H 13.123 [0.021] C 2003yCat.2246....0C

K 13.024 [0.024] C 2003yCat.2246....0C

g 15.226 [0.04] D 2012yCat.1322....0Z

r 14.715 [0.03] D 2012yCat.1322....0Z

i 14.538 [0.12] D 2012yCat.1322....0Z

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`UCAC4 671-078582`	`2MASS J19491231+4402463`	`WISE J194912.32+440246.3`	`Gaia DR2 2078865296278762368`
`KIC 8183083`	`TIC 273138605`	`Gaia DR3 2078865296278762368`

References (3 between 1850 and 2026) (Total 3)
Simbad bibliographic survey began in 1850 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system).

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`UCAC4 671-078582`	`KIC 8183083`	`2MASS J19491231+4402463`	`WISE J194912.32+440246.3`	`Gaia DR3 2078865296278762368`
`Gaia DR2 2078865296278762368`

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