2012IBVS.6019....1H

Query : 2012IBVS.6019....1H

2012IBVS.6019....1H - IAU Inform. Bull. Var. Stars, 6019, 1 (2012/April-0)

Magnetic field and spectral variability of the of?p star CPD-28 2561.

HUBRIG S., KHOLTYGIN A., SCHOLLER M., LANGER N., ILYIN I. and OSKINOVA L.

Abstract (from CDS):

European South Observatory Very Large Telescope observations using FORS 2 in spectropolarimetric mode reveal the presence of a variable magnetic field and spectral variability in the Of?p star CPD-28 2561 Only five Galactic Of?p stars are presently known: HD 108, NGC 1624-2, CPD-28 2561, HD 148937, and HD 191612. After our previous detection of a magnetic field in the Of?p star HD 148937 using FORS 1 at the VLT, it is the second Of?p star with a detected magnetic field of the order of a few hundred Gauss. The obtained low-resolution FORS 2 polarimetric spectra allowed us to detect clear variability of several hydrogen and helium lines on a rather short time scale.

Abstract Copyright: ∼

Journal keyword(s): massive stars, magnetic field, spectropolarimetry

Simbad objects: 1

goto View the references in ADS

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 CD-28 5104 s*b 07 55 52.8512069760 -28 37 46.791254424 9.39 10.13 9.94 10.12   O6Ifp 93 0

Query : 2012IBVS.6019....1H

Basic data :
CD-28 5104 -- Blue Supergiant
Other object types: otypes_help 		* (1971PW&SO,CD,...), s*b (1977ApJS), X (1RXS), NIR (2MASS)
ICRS coord. (ep=J2000) : 		07 55 52.8512069760 -28 37 46.791254424 (Optical) [ 0.0107 0.0154 90 ] A 2020yCat.1350....0G
FK4 coord. (ep=B1950 eq=1950) : 		07 53 51.0270309391 -28 29 45.378428116 [ 0.0107 0.0154 90 ]
Gal coord. (ep=J2000) : 		245.4453933537090 -00.0980588150928 [ 0.0107 0.0154 90 ]
Proper motions mas/yr : 		-2.587 3.027 [0.015 0.020 90] A 2020yCat.1350....0G
Radial velocity / Redshift / cz : 		V(km/s) 70.00 [9.3] / z(~) 0.000234 [0.000031] / cz 70.01 [9.30]
   D 2007AN....328..889K
Parallaxes (mas): 		0.1802 [0.0189] A 2020yCat.1350....0G
Spectral type: 		O6Ifp C 1977ApJS...35..111G
Fluxes (11) :
U 9.39 [~] D 2003AJ....125.2531R
B 10.13 [0.03] D 2012yCat.1322....0Z
V 9.94 [0.02] D 2012yCat.1322....0Z
R 10.12 [0.02] D 2012yCat.1322....0Z
G 9.902388 [0.002784] C 2020yCat.1350....0G
J 9.528 [0.023] C 2003yCat.2246....0C
H 9.518 [0.026] C 2003yCat.2246....0C
K 9.445 [0.023] C 2003yCat.2246....0C
g 10.00 [0.04] D 2012yCat.1322....0Z
r 9.97 [0.03] D 2012yCat.1322....0Z
i 10.06 [0.18] D 2012yCat.1322....0Z
SIMBAD within arcmin
Overlay Simbad points in this preview
Back
All CDSPortal (CDSPortal)
Send to sendBySAMP sendBySAMP
sedIcon
within arcsec sed-help-icon

Identifiers (25) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

CD-28 5104 Hbg 106 1RXS J075552.8-283741 [P81] 2319
ALS 870 HIC 38741 SAO 174826 Gaia DR2 5600424804642969600
CGO 112 HIP 38741 TIC 129361218 Gaia DR3 5600424804642969600
CPD-28 2561 LS 870 TYC 6565-1714-1 Gaia DR1 5600424804642969600
GEN# -0.02805104 2MASS J07555285-2837467 UCAC4 307-033997
GOS G245.45-00.10 01 PPM 253485 uvby98 -002805104
GSC 06565-01714 RF E4-22 YZ 118 4580

References (93 between 1850 and 2026) (Total 93)
Simbad bibliographic survey began in 1850 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system).
Follow new references on this object
                Reference summaries :

                from: to:

                 or select by : (not exhaustive, explanation here)

Collections of Measurements Description of Measurements

Velocities : 1    Plx : 5    PM : 4    SpT : 9   

   

External archives :

Archive data at HEASARC - High-Energy Astrophysics Science Archive Research Center

Link by name to the catalogue in VizieR :

CD-28 5104 ALS 870 CPD-28 2561 GSC 06565-01714 HIC 38741
HIP 38741 LS 870 2MASS J07555285-2837467 PPM 253485 1RXS J075552.8-283741
SAO 174826 TYC 6565-1714-1 UCAC4 307-033997 uvby98 -002805104 Gaia DR2 5600424804642969600
Gaia DR3 5600424804642969600 Gaia DR1 5600424804642969600

Search by coordinates in Vizier (radius: 5 arcsec)

Annotations :
Annotations allow a user to add a note or report an error concerning the astronomical object and its data. It requires registration to post a note. See description .
Please, have a look at Best practices. The list of all annotations to SIMBAD objects can be found here .

The annotation server is currently not available. Sorry for any inconvenience

To bookmark this query, right click on this link: simbad:objects in 2012IBVS.6019....1H and select 'bookmark this link' or equivalent in the popup menu