2020MNRAS.495L..61L

Query : 2020MNRAS.495L..61L

2020MNRAS.495L..61L - Mon. Not. R. Astron. Soc., 495, L61-L65 (2020)

The ancient main-sequence solar proxy HIP 102152 unveils the activity and rotational fate of our Sun.

LORENZO-OLIVEIRA D., MELENDEZ J., PONTE G. and YANA GALARZA J.

Abstract (from CDS):

We present a detailed analysis of the possible future Sun's rotational evolution scenario based on the 8-Gyr-old solar twin HIP 102152. Using HARPS high-cadence observations (and TESS light curves), we analysed the modulation of a variety of activity proxies (Ca II , H I Balmer, and Na I lines), finding a strong rotational signal of 35.7 ± 1.4 d (log Bfactor ∼ 70, in the case of Ca II K line). This value matches with the theoretical expectations regarding the smooth rotational evolution of the Sun towards the end of the main sequence, validating the use of gyrochronology after solar age.

Abstract Copyright: © 2020 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): Sun: rotation - stars: activity - stars: chromospheres - stars: fundamental parameters - stars: rotation - stars: solar-type

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 HD 197027 PM* 20 41 54.6335853576 -27 12 57.415436208   9.80 9.15     G3V 87 0

Query : 2020MNRAS.495L..61L

Basic data :
HD 197027 -- High Proper Motion Star
Other object types: otypes_help 		* (CD,CPD,...), PM* (LTT), NIR (2MASS)
ICRS coord. (ep=J2000) : 		20 41 54.6335853576 -27 12 57.415436208 (Optical) [ 0.0129 0.0070 90 ] A 2020yCat.1350....0G
FK4 coord. (ep=B1950 eq=1950) : 		20 38 53.8073935778 -27 23 42.291617800 [ 0.0129 0.0070 90 ]
Gal coord. (ep=J2000) : 		017.3961374517936 -35.1306756052700 [ 0.0129 0.0070 90 ]
Proper motions mas/yr : 		175.628 -15.593 [0.016 0.013 90] A 2020yCat.1350....0G
Radial velocity / Redshift / cz : 		V(km/s) -43.57 [0.17] / z(spectroscopic) -0.000145 [0.000001] / cz -43.57 [0.17]
   (Opt) A 2022yCat.1355....0G
Parallaxes (mas): 		12.7715 [0.0164] A 2020yCat.1350....0G
Spectral type: 		G3V C 1982MSS...C03....0H
Fluxes (6) :
B 9.80 [0.03] D 2000A&A...355L..27H
V 9.15 [0.02] D 2000A&A...355L..27H
G 9.023514 [0.002758] C 2022yCat.1355....0G
J 7.964 [0.019] C 2003yCat.2246....0C
H 7.681 [0.027] C 2003yCat.2246....0C
K 7.594 [0.020] C 2003yCat.2246....0C
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Identifiers (18) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

LTT 8184 HD 197027 SAO 189585 Gaia DR3 6799090223510802176
CD-27 14976 HIC 102152 TIC 212354618 Gaia DR2 6799090223510802176
CPD-27 7079 HIP 102152 TYC 6929-846-1 Gaia DR1 6799090219213000576
GEN# +1.00197027 2MASS J20415462-2712574 uvby98 100197027
GSC 06929-00846 PPM 271498 YZ 117 13626

References (87 between 1850 and 2026) (Total 87)
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

Velocities : 4    Distance : 3    Rot : 5    Fe/H : 18    Plx : 4    PM : 4    SpT : 2   

   

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Link by name to the catalogue in VizieR :

CD-27 14976 CPD-27 7079 GSC 06929-00846 HD 197027 HIC 102152
HIP 102152 2MASS J20415462-2712574 PPM 271498 SAO 189585 TYC 6929-846-1
uvby98 100197027 Gaia DR3 6799090223510802176 Gaia DR2 6799090223510802176 Gaia DR1 6799090219213000576

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