2020ApJ...893L..35B

Query : 2020ApJ...893L..35B

2020ApJ...893L..35B - Astrophys. J., 893, L35-L35 (2020/April-3)

A new helioseismic constraint on a cosmic-time variation of G.

BONANNO A. and FROHLICH H.-E.

Abstract (from CDS):

The best available estimate of 8640 days of low-l BiSON data is used to constrain the evolution of Newton's constant over cosmic time. The effect of different chemical compositions and the impact of the theoretical uncertainties on the efficiency of the proton-proton (pp) fusion cross-section have been considered within a Bayesian approach. The resulting new helioseismic limit on the variation of the gravitational constant turns out to be | {dot}G/G|_t=t0_< 2×10^–13 yr^–1.

Journal keyword(s): Helioseismology - Gravitation - Bayesian statistics - Stellar structures - Non-standard theories of gravity - Fundamental parameters of stars

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 186306	Em*	19 41 45.6454247760	+43 44 51.716276232		8.70	7.96			G9V	75	0

Query : 2020ApJ...893L..35B

Basic data :

HD 186306 -- Emission-line Star

* (2013MNRAS,HD,...), Em* (2023ApJS), PM* (2016A&A), NIR (2MASS), Opt (LAMOST)

19 41 45.6454247760 +43 44 51.716276232 (Optical) [ 0.0164 0.0157 90 ] A 2020yCat.1350....0G

19 40 09.3529856298 +43 37 40.644314220 [ 0.0164 0.0157 90 ]

077.1958438938150 +10.0942607335775 [ 0.0164 0.0157 90 ]

50.702 75.325 [0.021 0.019 90] A 2020yCat.1350....0G

V(km/s) -60.31 [0.16] / z(spectroscopic) -0.000201 [0.000001] / cz -60.30 [0.16] (Opt) A 2018yCat.1345....0G

36.6224 [0.0181] A 2020yCat.1350....0G

G9V C 2013MNRAS.434.1422M

B 8.70 [0.02] D 2000A&A...355L..27H

V 7.96 [0.01] D 2000A&A...355L..27H

G 7.762319 [0.002762] C 2020yCat.1350....0G

J 6.517 [0.023] C 2003yCat.2246....0C

H 6.161 [0.023] C 2003yCat.2246....0C

K 6.085 [0.018] C 2003yCat.2246....0C

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`HD 186306`	`KIC 7970740`	`SPOCS 2386`	`Gaia DR3 2078105327586616704`
`AG+43 1709`	`LAMOST J194145.64+434451.5`	`SPOCS 3102`	`Gaia DR1 2078105323280815360`
`BD+43 3325`	`2MASS J19414564+4344515`	`TIC 271668882`	`Gaia DR2 2078105327586616704`
`GEN# +1.00186306`	`PPM 58702`	`TYC 3148-1740-1`
`GSC 03148-01740`	`SAO 48735`	`uvby98 100186306`

References (75 between 1850 and 2026) (Total 75)
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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`HD 186306`	`AG+43 1709`	`BD+43 3325`	`GSC 03148-01740`	`KIC 7970740`
`2MASS J19414564+4344515`	`PPM 58702`	`SAO 48735`	`TYC 3148-1740-1`	`uvby98 100186306`
`Gaia DR3 2078105327586616704`	`Gaia DR1 2078105323280815360`	`Gaia DR2 2078105327586616704`

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