2018MNRAS.474.5413J

Query : 2018MNRAS.474.5413J

2018MNRAS.474.5413J - Mon. Not. R. Astron. Soc., 474, 5413-5424 (2018/March-2)

Using the phase shift to asymptotically characterize the dipolar mixed modes in post-main-sequence stars.

JIANG C., CHRISTENSEN-DALSGAARD J. and CUNHA M.

Abstract (from CDS):

Mixed modes have been extensively observed in post-main-sequence stars by the Kepler and CoRoT space missions. The mixture of the p and g modes can be measured by the dimensionless coefficient q, the so-called coupling strength factor. In this paper, we discuss the utility of the phase shifts θ from the eigenvalue condition for mixed modes as a tool to characterize dipolar mixed modes from the theoretical as well as the practical point of view. Unlike the coupling strength, whose variation in a given star is very small over the relevant frequency range, the phase shifts vary significantly for different modes. The analysis in terms of θ can also provide a better understanding of the pressure and gravity radial order for a given mixed mode. Observed frequencies of the Kepler red-giant star KIC 3744043 are used to test the method. The results are very promising.

Journal keyword(s): stars: interiors - stars: oscillations - 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	BD+38 3559	RG*	19 22 27.4541289912	+38 50 52.908872712		10.79	9.81			K2	58	0

Query : 2018MNRAS.474.5413J

Basic data :

BD+38 3559 -- Red Giant Branch star

* (2014ApJS,BD,...), RG* (2012A&A), NIR (2MASS)

19 22 27.4541289912 +38 50 52.908872712 (Optical) [ 0.0077 0.0094 90 ] A 2020yCat.1350....0G

19 20 43.9738608696 +38 45 02.331110923 [ 0.0077 0.0094 90 ]

071.0819347356693 +11.0981541790698 [ 0.0077 0.0094 90 ]

10.405 25.379 [0.010 0.011 90] A 2020yCat.1350....0G

V(km/s) -36.305099 [0.003607] / z(spectroscopic) -0.000121 [0.000000] / cz -36.30 [0.00] (NIR) A 2020AJ....160..120J

2.5287 [0.0096] A 2020yCat.1350....0G

K2 D ~

B 10.79 [0.05] D 2000A&A...355L..27H

V 9.81 [0.03] D 2000A&A...355L..27H

G 9.653153 [0.002757] C 2020yCat.1350....0G

J 8.199 [0.023] C 2003yCat.2246....0C

H 7.725 [0.020] C 2003yCat.2246....0C

K 7.626 [0.021] C 2003yCat.2246....0C

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`BD+38 3559`	`GSC 03134-01079`	`PPM 82790`	`Gaia DR3 2052864114022602496`
`AG+38 1832`	`KIC 3744043`	`TIC 122519523`	`Gaia DR1 2052864109723850496`
`AP J19222743+3850529`	`2MASS J19222743+3850529`	`TYC 3134-1079-1`	`Gaia DR2 2052864114022602496`

References (58 between 1850 and 2026) (Total 58)
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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`BD+38 3559`	`AG+38 1832`	`AP J19222743+3850529`	`GSC 03134-01079`	`KIC 3744043`
`2MASS J19222743+3850529`	`PPM 82790`	`TYC 3134-1079-1`	`Gaia DR3 2052864114022602496`	`Gaia DR1 2052864109723850496`
`Gaia DR2 2052864114022602496`

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