2018MNRAS.480..467P

Query : 2018MNRAS.480..467P

2018MNRAS.480..467P - Mon. Not. R. Astron. Soc., 480, 467-472 (2018/October-2)

Surface gravities for 15 000 Kepler stars measured from stellar granulation and validated with Gaia DR2 parallaxes.

PANDE D., BEDDING T.R., HUBER D. and KJELDSEN H.

Abstract (from CDS):

We have developed a method to estimate surface gravity (log g) from light curves by measuring the granulation background, similar to the 'flicker' method by Bastien et al. (2016) but working in the Fourier power spectrum. We calibrated the method using Kepler stars for which asteroseismology has been possible with short-cadence data, demonstrating a precision in log g of about 0.05 dex. We also derived a correction for white noise as a function of Kepler magnitude by measuring white noise directly from observations. We then applied the method to the same sample of long-cadence stars as Bastien et al. We found that about half the stars are too faint for the granulation background to be reliably detected above the white noise. We provide a catalogue of log g values for about 15 000 stars having uncertainties better than 0.5 dex. We used Gaia DR2 parallaxes to validate that granulation is a powerful method to measure log g from light curves. Our method can also be applied to the large number of light curves collected by K2 and TESS.

Abstract Copyright: © 2018 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): asteroseismology - stars: fundamental parameters - stars: oscillations

VizieR on-line data: <Available at CDS (J/MNRAS/480/467): table1.dat>

Status at CDS : All or part of tables of objects could be ingested in SIMBAD with priority 2.

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 BD+41 3408 * 19 35 21.9995952312 +41 46 35.870600424   9.29 8.79     F8V 31 0

Query : 2018MNRAS.480..467P

Basic data :
BD+41 3408 -- Star
Other object types: otypes_help 		* (2013MNRAS,BD,...), NIR (2MASS)
ICRS coord. (ep=J2000) : 		19 35 21.9995952312 +41 46 35.870600424 (Optical) [ 0.0128 0.0132 90 ] A 2020yCat.1350....0G
FK4 coord. (ep=B1950 eq=1950) : 		19 33 42.9105258477 +41 39 55.555074257 [ 0.0128 0.0132 90 ]
Gal coord. (ep=J2000) : 		074.8686997896276 +10.2154838517121 [ 0.0128 0.0132 90 ]
Proper motions mas/yr : 		-27.001 -29.232 [0.017 0.017 90] A 2020yCat.1350....0G
Radial velocity / Redshift / cz : 		V(km/s) 12.817200 [0.007434] / z(spectroscopic) 0.000043 [0.000000] / cz 12.82 [0.01]
   (NIR) A 2020AJ....160..120J
Parallaxes (mas): 		6.8252 [0.0148] A 2020yCat.1350....0G
Spectral type: 		F8V C 2013MNRAS.434.1422M
Fluxes (6) :
B 9.29 [0.02] D 2000A&A...355L..27H
V 8.79 [0.01] D 2000A&A...355L..27H
G 8.703139 [0.002763] C 2020yCat.1350....0G
J 7.807 [0.019] C 2003yCat.2246....0C
H 7.585 [0.020] C 2003yCat.2246....0C
K 7.529 [0.017] C 2003yCat.2246....0C
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Identifiers (13) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

BD+41 3408 KIC 6370489 TIC 138429786 Gaia DR2 2077613227412334080
AG+41 1756 2MASS J19352199+4146359 TYC 3143-2060-1
AP J19352199+4146359 PPM 58543 Gaia DR3 2077613227412334080
GSC 03143-02060 SAO 48615 Gaia DR1 2077613223108691072

References (31 between 1850 and 2026) (Total 31)
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 : 3    Diameter : 2    Distance : 2    Rot : 3    Fe/H : 9    Plx : 3    PM : 3    SpT : 2   

   

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Link by name to the catalogue in VizieR :

BD+41 3408 AG+41 1756 AP J19352199+4146359 GSC 03143-02060 KIC 6370489
2MASS J19352199+4146359 PPM 58543 SAO 48615 TYC 3143-2060-1 Gaia DR3 2077613227412334080
Gaia DR1 2077613223108691072 Gaia DR2 2077613227412334080

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