CDS

2002A&A...391..219L

Query : 2002A&A...391..219L

2002A&A...391..219L - Astronomy and Astrophysics, volume 391, 219-224 (2002/8-3)

The RXTE/ASM X-ray light curve of GX 301-2.

LEAHY D.A.

Abstract (from CDS):

GX 301-2 is an accreting neutron star in an eccentric orbit (e=0.462) with a massive early-type stellar companion. GX 301-2 accretes from the stellar wind and exhibits regular X-ray flares approximately 1.4 days prior to periastron passage. Long-term continuous X-ray monitoring of GX 301-2 by the RXTE/All-Sky-Monitor has now been carried out for a period of 5 years. These data now comprise the best observations of the orbital X-ray light curve. The main flux peak just prior to periastron is clearly seen, as well as a secondary broad peak near apastron. CGRO/BATSE observations have provided new improved orbital parameters. The constraint on the orbital inclination is examined. Then the GX 301-2 orbital light curve is modeled using wind, disk and stream models. The conclusion is that only a stellar wind plus mass stream is consistent with the data. The wind model is further supported by calculations of the stream flow from the primary and the expected orbital phases that the neutron star crosses the stream.

Abstract Copyright: ∼

Journal keyword(s): stars: neutron - stars: individual: GX 301-2 - stars: emission line, Be - X-rays: stars

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 - 2023 		#notes
1 V* BP Cru HXB 12 26 37.5605188992 -62 46 13.261044684   12.70 10.66     B1.5Iaeq 670 0

Query : 2002A&A...391..219L

Basic data :
V* BP Cru -- High Mass X-ray Binary
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: 		X (4U,3A,...), * (GSC,MO,...), Em* (Hen,WRAY,...), V* (2012A&A,V*,...), gam (INTEGRAL1,INTREF), MIR (MSX6C,SSTGLMC), HXB (2013ApJS), LXB (2013ApJS), Psr (2007ApJS), SB* (SBC9), El* (2003AstL), NIR (2MASS)
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) : 		12 26 37.5605188992 -62 46 13.261044684 (Optical) [ 0.0120 0.0133 90 ] A 2020yCat.1350....0G
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) : 		12 23 49.6668365566 -62 29 36.680168340 [ 0.0120 0.0133 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) : 		300.0980886185743 -00.0352037243499 [ 0.0120 0.0133 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 : 		-5.227 -2.071 [0.016 0.019 90] A 2020yCat.1350....0G
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): 		0.2506 [0.016] A 2020yCat.1350....0G
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: 		B1.5Iaeq C 1982PASP...94..541H
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 (6) :
B 12.70 [0.36] D 2000A&A...355L..27H
V 10.66 [0.07] D 2000A&A...355L..27H
G 9.751056 [0.002993] C 2020yCat.1350....0G
J 6.717 [0.021] C 2003yCat.2246....0C
H 6.077 [0.029] C 2003yCat.2246....0C
K 5.672 [0.017] C 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 Simbad points in this preview
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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!). sed-help-icon

The link on the acronym of the identifiers give access to the information for this acronym in the dictionary of nomenclature.
Identifiers (41) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

4U 1223-624 INTREF 497 SWIFT J122637.3-624610 1XRS 12238-624
3A 1223-624 1M 1223-624 1SXPS J122637.1-624610 [BM83] X1223-624
GPS 1222-625 2MASS J12263756-6246132 TIC 450572050 [GM76] 40
GSC 08979-01108 MO 1-3 TYC 8979-1108-1 [KRL2007b] 116
GX 301-02 MSX6C G300.0980-00.0351 2U 1223-62 AAVSO 1221-62
GX 301+00 PBC J1226.6-6246 3U 1223-62 Gaia DR3 6054569565614460800
GX 301-00.2 2S 1223-624 4U 1223-62 Gaia DR1 6054569561285282304
1H 1221-623 SBC9 724 UCAC2 4126327 Gaia DR2 6054569565614460800
Hen 3-788 SSTGLMC G300.0981-00.0352 V* BP Cru
H 1223-624 SWIFT J1226.6-6244 WEB 10801
INTEGRAL1 10 SWIFT J1226.6-6246 WRAY 15-977

References (670 between 1850 and 2023) (Total 670)
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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Collections of Measurements


V* : 1    distance : 2    PLX : 3    PM : 2   

   

Observing logs


herschel : 4    ISO : 16   

   

External archives :

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

Data at NED - NASA/IPAC Extragalactic Database : V* BP Cru

Link by name to the catalogue in VizieR :

GSC 08979-01108 2MASS J12263756-6246132 MSX6C G300.0980-00.0351 SSTGLMC G300.0981-00.0352 TYC 8979-1108-1
UCAC2 4126327 V* BP Cru Gaia DR3 6054569565614460800 Gaia DR1 6054569561285282304 Gaia DR2 6054569565614460800

Search by coordinates in Vizier (radius: 5 arcsec)

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2023.09.23-15:27:57

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