2023AstBu..78..165G

Query : 2023AstBu..78..165G

2023AstBu..78..165G - Astrophys. Bull., 78, 165-173 (2023/April-0)

Magnetic Field Structure of He-r Star HD 144941.

GLAGOLEVSKIJ Y.V. and BYCHKOV V.D.

Abstract (from CDS):

In the present paper, we study HD 144941, a EHe-r magnetic star with a very strong magnetic field and unique abundance of helium. We determined the magnetic field variability period equal to 6.969 days and proposed the most probable model of the magnetic field structure. The average surface magnetic field Bs=11226 G, the magnetic field structure can be described by the theoretical magnetic dipole model located in the center of the star. The inclination angle of the dipole axis the rotation equator plane is unusually great: alpha=65 deg. The star's age after the ZAMS is about 10^6 yr. We suppose that in terms We suppose that in terms of a very strong magnetic field, the wind ''blows out'' significant amount of helium to the surface according to the diffusion theory.

Abstract Copyright: ∼

Journal keyword(s): methods: numerical - stars: chemically peculiar - stars: magnetic fields

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 144941	pA*	16 09 24.5513020968	-27 13 38.184011148	9.45	10.17	10.02			B8	96	1

Query : 2023AstBu..78..165G

Basic data :

HD 144941 -- Post-AGB Star

* (HD,ALS,...), NIR (DENIS,2MASS), pA* (2007A&A), V* (AAVSO), UV (TD1)

16 09 24.5513020968 -27 13 38.184011148 (Optical) [ 0.0242 0.0159 90 ] A 2020yCat.1350....0G

16 06 20.5369148081 -27 05 47.486510735 [ 0.0242 0.0159 90 ]

348.1670912968405 +17.7828849077709 [ 0.0242 0.0159 90 ]

-6.834 8.023 [0.034 0.025 90] A 2020yCat.1350....0G

V(km/s) -281.457001 [6.294] / z(spectroscopic) -0.000938 [0.000021] / cz -281.33 [6.29] (NIR) D 2020AJ....160..120J

0.6714 [0.0282] A 2020yCat.1350....0G

B8 E 1993yCat.3135....0C

U 9.45 [~] D 2003AJ....125.2531R

B 10.17 [~] E ~

V 10.02 [~] E ~

G 10.092002 [0.002790] C 2020yCat.1350....0G

J 10.055 [0.026] C 2003yCat.2246....0C

H 10.061 [0.021] C 2003yCat.2246....0C

K 10.056 [0.021] C 2003yCat.2246....0C

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`HD 144941`	`EPIC 203109319`	`PPM 265193`	`UBV M 21189`
`ALS 18896`	`GEN# +1.00144941`	`Renson 41070`	`AAVSO 1603-26`
`AP J16092455-2713381`	`GSC2 S2301001149`	`TD1 18899`	`Gaia DR3 6042510190769087744`
`CD-26 11229`	`GSC 06788-00284`	`TIC 67985749`	`Gaia DR1 6042510186466259328`
`CPD-26 5604`	`LSE 29`	`TYC 6788-284-1`	`Gaia DR2 6042510190769087744`
`DENIS J160924.5-271338`	`2MASS J16092455-2713381`	`UBV 13664`

References (96 between 1850 and 2026) (Total 96)
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 144941`	`ALS 18896`	`AP J16092455-2713381`	`CD-26 11229`	`CPD-26 5604`
`DENIS J160924.5-271338`	`GSC 06788-00284`	`LSE 29`	`2MASS J16092455-2713381`	`PPM 265193`
`TD1 18899`	`TYC 6788-284-1`	`Gaia DR3 6042510190769087744`	`Gaia DR1 6042510186466259328`	`Gaia DR2 6042510190769087744`

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