2018MNRAS.473L..21B

Query : 2018MNRAS.473L..21B

2018MNRAS.473L..21B - Mon. Not. R. Astron. Soc., 473, L21-L25 (2018/January-1)

KIC 8462852: Will the Trojans return in 2021?

BALLESTEROS F.J., ARNALTE-MUR P., FERNANDEZ-SOTO A. and MARTINEZ V.J.

Abstract (from CDS):

KIC 8462852 stood out among more than 100 000 stars in the Kepler catalogue because of the strange features of its light curve: a wide, asymmetric dimming taking up to 15 per cent of the light at D793 and a period of multiple, narrow dimmings happening approximately 700 d later. Several models have been proposed to account for this abnormal behaviour, most of which require either unlikely causes or a finely tuned timing. We aim at offering a relatively natural solution, invoking only phenomena that have been previously observed, although perhaps in larger or more massive versions. We model the system using a large, ringed body whose transit produces the first dimming and a swarm of Trojan objects sharing its orbit that causes the second period of multiple dimmings. The resulting orbital period is T ≃ 12 yr, with a semi-major axis a ≃ 6 au. Our model allows us to make two straightforward predictions: we expect the passage of a new swarm of Trojans in front of the star starting during the early months of 2021, and a new transit of the main object during the first half of 2023.

Abstract Copyright: © 2017 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): planets and satellites: dynamical evolution and stability - stars: individual: KIC 8462852 - stars: peculiar - stars: peculiar

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 GSC 03162-00665 Er* 20 06 15.4526521026 +44 27 24.790869158   12.82 12.01 11.75   F3V 159 0

Query : 2018MNRAS.473L..21B

Basic data :
GSC 03162-00665 -- Eruptive Variable
Other object types: otypes_help 		* (TYC,GSC,...), MIR (WISEA,WISE), Er* (2019ApJS), V* (2019MNRAS), NIR (2MASS)
ICRS coord. (ep=J2000) : 		20 06 15.4526521026 +44 27 24.790869158 (Optical) [ 0.0088 0.0085 90 ] A 2020yCat.1350....0G
FK4 coord. (ep=B1950 eq=1950) : 		20 04 37.5557608544 +44 18 43.785845262 [ 0.0088 0.0085 90 ]
Gal coord. (ep=J2000) : 		080.0379408041766 +06.6403305843674 [ 0.0088 0.0085 90 ]
Proper motions mas/yr : 		-10.375 -10.273 [0.012 0.011 90] A 2020yCat.1350....0G
Parallaxes (mas): 		2.2545 [0.0099] A 2020yCat.1350....0G
Spectral type: 		F3V C 2016MNRAS.457.3988B
Fluxes (7) :
B 12.82 [0.32] D 2000A&A...355L..27H
V 12.01 [0.20] D 2000A&A...355L..27H
R 11.75 [0.04] D 2012yCat.1322....0Z
G 11.758744 [0.002766] C 2020yCat.1350....0G
J 10.763 [0.021] C 2003yCat.2246....0C
H 10.551 [0.019] C 2003yCat.2246....0C
K 10.499 [0.02] C 2003yCat.2246....0C
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Hierarchy : number of linked objects
whatever the membership probability is (see description here ) :

: 1 : 2019 Display criteria :

Identifiers (13) :
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TYC 3162-665-1 NAME Boyajian's Star WISEA J200615.45+442724.6 Gaia DR2 2081900940499099136
GSC 03162-00665 NSVS 5711291 WISE J200615.45+442724.7
KIC 8462852 TIC 185336364 Gaia DR3 2081900940499099136
2MASS J20061546+4427248 UCAC4 673-083862 Gaia DR1 2081900940499099136

References (159 between 1850 and 2026) (Total 159)
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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Distance : 2    Plx : 3    PM : 2   

   

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Link by name to the catalogue in VizieR :

TYC 3162-665-1 GSC 03162-00665 KIC 8462852 2MASS J20061546+4427248 UCAC4 673-083862
WISEA J200615.45+442724.6 WISE J200615.45+442724.7 Gaia DR3 2081900940499099136 Gaia DR1 2081900940499099136 Gaia DR2 2081900940499099136

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