2018ApJ...856L...8C


Query : 2018ApJ...856L...8C

2018ApJ...856L...8C - Astrophys. J., 856, L8-L8 (2018/March-3)

Proper motion of the faint star near KIC 8462852 (Boyajian's star)-not a binary system.

CLEMENS D.P., MAHESHWARI K., JAGANI R., MONTGOMERY J., EL BATAL A.M., ELLIS T.G. and WRIGHT J.T.

Abstract (from CDS):

A faint star located 2 arcsec from KIC 8462852 was discovered in Keck 10 m adaptive optics imaging in the JHK near-infrared (NIR) in 2014 by Boyajian et al. (2016). The closeness of the star to KIC 8462852 suggested that the two could constitute a binary, which might have implications for the cause of the brightness dips seen by Kepler and in ground-based optical studies. Here, NIR imaging in 2017 using the Mimir instrument resolved the pair and enabled measuring their separation. The faint star had moved 67 ± 7 milliarcsec (mas) relative to KIC 8462852 since 2014. The relative proper motion of the faint star is 23.9 ± 2.6 mas yr–1, for a tangential velocity of 45 ± 5 km s–1 if it is at the same 390 pc distance as KIC 8462852. Circular velocity at the 750 au current projected separation is 1.5 km s–1, hence the star pair cannot be bound.

Abstract Copyright: © 2018. The American Astronomical Society. All rights reserved.

Journal keyword(s): stars: individual: KIC 8462852

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 : 2018ApJ...856L...8C

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) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

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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Collections of Measurements Description of Measurements

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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