1997A&AS..123..173R

1997A&AS..123..173R - Astron. Astrophys., Suppl. Ser., 123, 173-177 (1997/May-2)

An attempt to detect polarization effects in the envelope of γ Cassiopeiae with the GI2T interferometer.

ROUSSELET-PERRAUT K., VAKILI F., MOURARD D., MORAND F., BONNEAU D. and STEE P.

Abstract (from CDS):

Abstract Copyright: ∼

Journal keyword(s): circumstellar matter - stars: Be - stars: individual (gamma Cas) - stars: imaging - techniques: interferometric - polarization

Simbad objects: 1

Full paper

View the references in ADS

Basic data :
* gam Cas -- Be Star Origin of the objects types : (Ref) Object type as listed in the reference "Ref" (acronym) Object type linked to the acronym according to the original reference () Anterior to 2007, before we can link the objet type to a reference, or given by the CDS team in some particular cases Other object types: Be* (), * (2013ApJS,*,...), X (3A,AT,...), ** (**,ADS,...), IR (IRAS,IRC,...), Em* (EM*,[KW97]), V* (V*,AAVSO), UV (EUVE,TD1), gam (INTREF), NIR (2MASS), MIR (WISE) Syntax of coordinates is : "ra dec (wtype) [error ellipse] quality bibcode" : ra dec : right ascension and declination (unit and frame defined according to your Output Options) Grey values are increasing the original precision due to the computation of frame transformations (wtype) : wavelength class for the origin of the coordinates (Rad, mm, IR, Optical, UV, Xray, Gam) [error ellipse] : measurement uncertainty, on (ra,dec) if the positional angle is 90 degrees, on (majaxis,minaxis) otherwise (in mas at defined epoch in the original catalogue), position angle (in degrees North celestial pole to East) quality : flag of quality E ≥ 10" D : 1-10" (and some old data) C : 0.1-1" B : 0.01-0.1" + 2MASS, Tyc A : VLBI, Hipparcos bibcode : bibcode of the coordinates reference ICRS coord. (ep=J2000) : 00 56 42.5310945 +60 43 00.264089 (Optical) [ 0.07 0.07 90 ] A 2007A&A...474..653V Syntax of coordinates is : "ra dec (wtype) [error ellipse] quality bibcode" : ra dec : right ascension and declination (unit and frame defined according to your Output Options) Grey values are increasing the original precision due to the computation of frame transformations (wtype) : wavelength class for the origin of the coordinates (Rad, mm, IR, Optical, UV, Xray, Gam) [error ellipse] : measurement uncertainty, on (ra,dec) if the positional angle is 90 degrees, on (majaxis,minaxis) otherwise (in mas at defined epoch in the original catalogue), position angle (in degrees North celestial pole to East) quality : flag of quality E ≥ 10" D : 1-10" (and some old data) C : 0.1-1" B : 0.01-0.1" + 2MASS, Tyc A : VLBI, Hipparcos bibcode : bibcode of the coordinates reference FK4 coord. (ep=B1950 eq=1950) : 00 53 40.3457151 +60 26 47.405192 [ 0.07 0.07 90 ] Syntax of coordinates is : "ra dec (wtype) [error ellipse] quality bibcode" : ra dec : right ascension and declination (unit and frame defined according to your Output Options) Grey values are increasing the original precision due to the computation of frame transformations (wtype) : wavelength class for the origin of the coordinates (Rad, mm, IR, Optical, UV, Xray, Gam) [error ellipse] : measurement uncertainty, on (ra,dec) if the positional angle is 90 degrees, on (majaxis,minaxis) otherwise (in mas at defined epoch in the original catalogue), position angle (in degrees North celestial pole to East) quality : flag of quality E ≥ 10" D : 1-10" (and some old data) C : 0.1-1" B : 0.01-0.1" + 2MASS, Tyc A : VLBI, Hipparcos bibcode : bibcode of the coordinates reference Gal coord. (ep=J2000) : 123.5768760058 -02.1484067521 [ 0.07 0.07 90 ] Syntax of proper motions is : "pm-ra pm-dec [error ellipse] quality bibcode" pm-ra : mu-ra*cos(dec) (expressed in the ICRS system in mas/yr) pm-dec : mu-dec (expressed in the ICRS system in mas/yr) [error ellipse] : error major axis and minor axis (in mas), orientation angle (in deg) quality : flag of quality (A=best quality -> E=worst quality, {� } =unknown quality) bibcode : bibcode of the proper motion reference Proper motions mas/yr : 25.17 -3.92 [0.08 0.08 90] A 2007A&A...474..653V Syntax of radial velocity (or/and redshift) is : "value [error] (wavelength) quality bibcode" value : radial velocity or/and redshift (Heliocentric frame) according to your Output Options (redshift may be not displayed if the data value is <0 and the database inside value is a radial velocity) [error] : error of the corresponding value displayed before (wavelength) : wavelength range of the measurement : Rad, mm, IR, Opt, UV, Xray, Gam or  '∼'(unknown) quality : flag of quality ( A=best quality -> E=worst quality, {� } =unknown quality) bibcode : bibcode of the value's origin Radial velocity / Redshift / cz : V(km/s) -6.8 [0.9] / z(~) -0.000023 [0.000003] / cz -6.80 [0.90]    E 1953GCRV..C......0W Syntax of parallax is : 'value quality [error] bibcode' value : parallax value quality : flag of quality (A=best quality -> E=worst quality, {� } =unknown quality) [error] : mean error bibcode : bibcode of the parallax reference Parallaxes (mas): 5.94 [0.12] A 2007A&A...474..653V Spectral type is made of 3 parts: %coding is composed of 4 parts : the spectral type, which is made of a temperature class, eventually a luminosity class (roman number) and/or spectral peculiarities; a quality letter: A=best quality→E=worst quality, {� } =unknown quality % a quality letter: A=best quality -> E=worst quality, {� } =unknown quality bibcode : bibcode of the spectral type reference Spectral type: B0.5IVpe C 2011ARep...55...31S Syntax of fluxes (or magnitudes) is : "filter-name (System) flux-value [error] quality MultVarFlags bibcode" filter-name : U, B, V, R, I, G, J, H, K, u, g, r, i, z (System) : may be AB (default is Vega) flux-value : value of flux or magnitude [error] : error value quality : flag of quality of the flux value ( A=best quality -> E=worst quality, {� } =unknown quality) MultVarFlags : Mult is zero or one char (J) for joined photometry ; Var can be zero or two chars (V[0-4]) bibcode : bibcode of the flux reference Fluxes (9) : U 1.18 [~] C 2002yCat.2237....0D B 2.29 [~] C 2002yCat.2237....0D V 2.39 [~] C 2002yCat.2237....0D R 2.32 [~] C 2002yCat.2237....0D G 2.064583 [0.006459] C 2022yCat.1355....0G I 2.40 [~] C 2002yCat.2237....0D J 2.039 [0.238] D 2003yCat.2246....0C H 1.993 [0.182] D 2003yCat.2246....0C K 1.756 [0.230] D 2003yCat.2246....0C	SIMBAD within arcmin ', {sourceSize:12, color:'#30a090'})); aladin.on('objectClicked', function(object) { var objName=object.data.MAIN_ID; aladin.showPopup(object.ra,object.dec,'',''+ objName+''); });" title="Show Simbad objects"> Overlay points in this preview 2MASS DSS SDSSXMMIRACIRISGALEX All (CDSPortal) Send to within arcsec The VizieR photometry tool allows for easy visualization of photometry points extracted around the Simbad position from photometry-enabled catalogues in VizieR. The search radius has to be specified by the user. It is currently limited to a maximum of 30 arcsec. It depends mostly on the precision or quality of the coordinates (SIMBAD and VizieR catalogs), the resolution of the images from which the sources were extracted, source extent, and source crowding. Suggestions are: crowded field: 0.5 to 1.5 arcsec, 3 arcsec otherwise; uncertain coordinates (SIMBAD quality E or coordinates without reference): 5 to 30 arsec (risky!).
Some important notes on this object about identifications and objects associations. notes: is the star of the reflection nebula VDB 5.

* gam Cas	GCRV 526	PLX 185	uvby98 100005394 A
* 27 Cas	GEN# +1.00005394	PLX 185.00	V* gam Cas
** BU 499A	1H 0053+604	PMC 90-93 23	VDB 5
** BU 1028A	HD 5394	PMSC 00507+6010A	WDS J00567+6043A
3A 0053+604	HIC 4427	PPM 12597	WEB 791
ADS 782 A	HIP 4427	RAFGL 133	WISE J005642.67+604300.3
AG+60 106	HR 264	1RXS J005642.0+604300	1XRS 00537+604
ALS 6407	INTREF 57	2S 0053+604	[BM83] X0053+604
AT 0037+611	IRAS 00536+6026	SAO 11482	[FS2003] 0031
BD+59 144	IRC +60031	SKY# 1444	[HFE83] 40
BSD 8-901	JP11 439	SWIFT J0056.7+6043	[JE82] 20
CCDM J00567+6043A	LS I +60 133	SWIFT J0056.5+6042	[KRL2007b] 9
CSI+59 144 1	1M 0050+592	TD1 521	[KW97] 4-31
EM* MWC 9	1M 0050+60	TIC 51962733	AAVSO 0050+60
1ES 0053+60.4	2MASS J00564251+6043002	TYC 4017-2319-1	Gaia DR3 426558460884582016
EUVE J0056+60.7	MCW 46	4U 0054+60	Gaia DR2 426558460877467776
FK5 32	N30 187	UBV 833
GC 1117	PBC J0056.5+6043	UCAC4 754-011026

References (1182 between 1850 and 2023) (Total 1182) 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

Collections of Measurements

External archives :

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

Data at NED - NASA/IPAC Extragalactic Database : * gam Cas

Link by name to the catalogue in VizieR :

Search by coordinates in Vizier (radius: 5 arcsec)

• The binary nature of $γ$ Cas is questionable – $γ$ Cas is classified as a HMXB (high-mass X-ray binary) in the catalogue of Liu et al. (see the VizieR detailed record from Cat. V/106 published in 2000A&AS..147...25L and 2001A&A...368.1021L)

  Following a note by Myron Smith (STScI) of 07-Aug-2002:

  Hello Simbad! In looking up the Be star gamma Cas on SIMBAD, I've noticed that you that you have recently changed the descriptive title of this star to: "HD 5394 - high mass X-ray binary". By definition, high-mass X-ray binaries emit their x-rays by wind-accretion processes through a wind accretion onto a degenerate secondary star, and such an interpretation is almost certainly wrong for this star - and also rather prejudicial. Over the last 5-6 years R. Robinson and I have written a long series of papers from X-ray, UV, and optical observations (e.g. see most recent paper this week: 2002ApJ...575..435R). The classification that you obtained for this probably comes from the Liu, van Paradijs, & van den Heuvel (2000[Cat. V/106]), a catalog of HMXRBs. But their classification of this star i s almost certainly in error. In fact the evidence cited in this catalog includes a citation of one of our papers in which they reversed our own interpretation of our data - in which we discovered that the X-rays are more likely to be emitted from the vicinity of the Be star itself, probably as a result of a disk dynamo. I should emphasize that there is no actual evidence that the X-rays from this source come from the vicinity of a binary companion, such as X-ray pulses or periodic X-ray transients. Retaining the present title will prejudice investigators coming to the gamma Cas entry in SIMBAD and prevent them from coming to a conclusion of what a careful reading of the literature would imply. A more proper entry might simply be "HD 5394 - prototype of Be class," which is historically accurate as well as noninterpretational. I hope you will be able to correct this misleading entry in the near future. Many thanks - Myron Smith

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