2006A&A...445L..47R

Query : 2006A&A...445L..47R

2006A&A...445L..47R - Astronomy and Astrophysics, volume 445L47-50 (2006/1-3)

HD 178892 - a cool Ap star with extremely strong magnetic field.

RYABCHIKOVA T., KOCHUKHOV O., KUDRYAVTSEV D., ROMANYUK I., SEMENKO E., BAGNULO S., LO CURTO G., NORTH P. and SACHKOV M.

Abstract (from CDS):

We report a discovery of the Zeeman resolved spectral lines, corresponding to the extremely large magnetic field modulus <B_s≥17.5kG, in the cool Ap star HD 178892. The mean longitudinal field of this star reaches 7.5kG, and its rotational modulation implies the strength of the dipolar magnetic component B_p≥23kG. We have revised rotation period of the star using the All Sky Automated Survey photometry and determined P=8.2478d. Rotation phases of the magnetic and photometric maxima of the star coincide with each other. We obtained Geneva photometric observation of HD 178892 and estimated T_eff=7700±250K using photometry and the hydrogen Balmer lines. Preliminary abundance analysis reveals abundance pattern typical of rapidly oscillating Ap stars.

Abstract Copyright: ∼

Journal keyword(s): stars: magnetic fields - stars: chemically peculiar - stars: individual: HD 178892

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 178892	Pu*	19 09 54.7518733248	+14 57 58.348940148		9.27	8.94			ApSrCrEu	55	0

Query : 2006A&A...445L..47R

Basic data :

HD 178892 -- Pulsating Variable

* (HD,AG,...), ** (CCDM,WDS), Pu* (2022yCat), UV (TD1), NIR (2MASS)

19 09 54.7518733248 +14 57 58.348940148 (Optical) [ 0.0107 0.0117 90 ] A 2020yCat.1350....0G

19 07 37.9898764019 +14 53 03.235923398 [ 0.0107 0.0117 90 ]

048.3359347189071 +02.7812887324691 [ 0.0107 0.0117 90 ]

-1.722 -22.993 [0.014 0.014 90] A 2020yCat.1350....0G

4.0144 [0.0169] A 2020yCat.1350....0G

ApSrCrEu D 2013MNRAS.431.2808K

B 9.27 [0.02] D 2000A&A...355L..27H

V 8.94 [0.01] D 2000A&A...355L..27H

G 8.919616 [0.002792] C 2020yCat.1350....0G

J 8.588 [0.026] C 2003yCat.2246....0C

H 8.637 [0.018] C 2003yCat.2246....0C

K 8.614 [0.018] C 2003yCat.2246....0C

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`HD 178892`	`GSC 01053-00103`	`Renson 49740`	`WDS J19099+1458A`
`AG+14 1978`	`HIC 94155`	`SAO 104546`	`YZ 14 7079`
`BD+14 3811`	`HIP 94155`	`TD1 24049`	`Gaia DR2 4320497479336570880`
`BD+14 3811A`	`2MASS J19095475+1457583`	`TIC 395762512`	`Gaia DR3 4320497479336570880`
`CCDM J19099+1458A`	`PPM 135881`	`TYC 1053-103-1`	`Gaia DR1 4320497474972309632`

References (55 between 1850 and 2026) (Total 55)
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 178892`	`AG+14 1978`	`BD+14 3811`	`CCDM J19099+1458A`	`GSC 01053-00103`
`HIC 94155`	`HIP 94155`	`2MASS J19095475+1457583`	`PPM 135881`	`SAO 104546`
`TD1 24049`	`TYC 1053-103-1`	`WDS J19099+1458A`	`Gaia DR2 4320497479336570880`	`Gaia DR3 4320497479336570880`
`Gaia DR1 4320497474972309632`

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