2016A&A...596A..31S


C.D.S. - SIMBAD4 rel 1.7 - 2020.07.13CEST22:59:43

2016A&A...596A..31S - Astronomy and Astrophysics, volume 596A, 31-31 (2016/12-1)

Photospheric and chromospheric magnetic activity of seismic solar analogs. Observational inputs on the solar-stellar connection from Kepler and HERMES.

SALABERT D., GARCIA R.A., BECK P.G., EGELAND R., PALLE P.L., MATHUR S., METCALFE T.S., DO NASCIMENTO J.-D., CEILLIER T., ANDERSEN M.F. and TRIVINO HAGE A.

Abstract (from CDS):

We identify a set of 18 solar analogs among the seismic sample of solar-like stars observed by the Kepler satellite rotating between 10 and 40 days. This set is constructed using the asteroseismic stellar properties derived using either the global oscillation properties or the individual acoustic frequencies. We measure the magnetic activity properties of these stars using observations collected by the photometric Kepler satellite and by the ground-based, high-resolution HERMES spectrograph mounted on the Mercator telescope. The photospheric (Sph) and chromospheric (S index) magnetic activity levels of these seismic solar analogs are estimated and compared in relation to the solar activity. We show that the activity of the Sun is comparable to the activity of the seismic solar analogs, within the maximum-to-minimum temporal variations of the 11-yr solar activity cycle 23. In agreement with previous studies, the youngest stars and fastest rotators in our sample are actually the most active. The activity of stars older than the Sun seems to not evolve much with age. Furthermore, the comparison of the photospheric, Sph, with the well-established chromospheric, S index, indicates that the Sph index can be used to provide a suitable magnetic activity proxy which can be easily estimated for a large number of stars from space photometric observations.

Abstract Copyright: © ESO, 2016

Journal keyword(s): stars: solar-type - stars: activity - stars: evolution - methods: data analysis - methods: observational

Simbad objects: 19

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Number of rows : 19

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 * 58 Eri BY* 04 47 36.2917607568 -16 56 04.041927355   6.14 5.50     G2.5IV-V 384 0
2 BD+47 2683 * 18 43 42.4230070169 +47 56 16.007259287   9.85 9.26     G0V 54 0
3 HD 177780 * 19 04 16.3774387772 +41 00 11.443194845   9.01 8.37     G3V 33 0
4 Kepler-1349 Ro* 19 05 21.2185294329 +48 44 38.764937960   12.00 11.21     G0 34 0
5 TYC 3124-2460-1 * 19 06 45.1880003411 +40 13 59.396311568   12.38 11.56     G2V 11 0
6 TYC 3546-857-1 * 19 09 53.3319584724 +47 06 57.260696889   12.55 12.03     K0IV-V 9 0
7 TYC 3129-2713-1 * 19 10 52.5636657508 +42 03 20.113659870   11.78 11.22     G5V 12 0
8 BD+39 3706 PM* 19 16 34.9029087477 +40 02 50.362111184       9.1   G1.5V 60 0
9 HD 181207 PM* 19 17 46.3566541779 +41 24 36.837551319   9.06 8.47     F9IV-V 72 0
10 TYC 3547-813-1 PM* 19 19 41.7247834158 +48 26 09.885625827   11.85 11.05     ~ 12 0
11 BD+43 3228 PM* 19 23 56.4114026497 +43 18 52.534860977   10.84 10.15     G0V 47 0
12 TYC 3135-712-1 * 19 32 20.4423961438 +38 20 30.141251280   10.98 10.35     G9IV 13 0
13 TYC 3135-624-1 PM* 19 36 48.8136899967 +38 42 56.787490867   10.35 9.55     G5IV 59 0
14 TYC 3560-3006-1 * 19 39 15.4238559350 +47 14 54.426105374   11.26 10.62     G2V 13 0
15 TYC 3556-3445-1 Ro* 19 40 21.2108165107 +45 29 20.960913818   10.48 9.91     G3V 56 0
16 TYC 3565-165-1 Ro* 19 43 23.6677710940 +50 21 17.727823981   11.47 11.00     G2V 15 0
17 KOI-364 Ro* 19 43 29.3537343599 +42 52 52.080705146   10.81 10.13     G2.5IVa 49 0
18 TYC 3148-357-1 * 19 49 22.1086699163 +43 20 01.931401083   10.99 10.37     G0.5V 12 0
19 TYC 3558-2118-1 Ro* 19 59 09.9225499115 +45 23 29.718201088   11.13 10.35     G0IV 14 0

    Equat.    Gal    SGal    Ecl

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2020.07.13-22:59:43

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