1999A&A...349L...1I

Query : 1999A&A...349L...1I

1999A&A...349L...1I - Astronomy and Astrophysics, volume 349, L1-4 (1999/9-1)

The discovery of 321s pulsations in the ROSAT HRI light curves of 1BMW J080622.8+152732 = RX J0806.3+1527.

ISRAEL G.L., PANZERA M.R., CAMPANA S., LAZZATI D., COVINO S. and TAGLIAFERRI G.

Abstract (from CDS):

During a systematic search for periodic signals in a sample of ∼3000 ROSAT HRI (0.1-2.4keV) light curves, we discovered ∼321s pulsations in the X-ray flux of RX J0806.3+1527. Two different HRI observations of RX J0806.3+1527 were obtained with the source at flux level of 3 and 5x10–12erg/cm2/s, respectively. Only a faint B=20.5 object is possibly present within the error circle, while no optical counterpart is present in the R plate down to a limiting magnitude of ∼20. This indicates that the object is intrinsically blue. The X-ray and optical findings imply that RX J0806.3+1527 is a relatively distant (∼500pc) intermediate polar (IP) or, more unlikely, a nearby (∼10pc) isolated neutron star accreting from the interstellar medium.

Abstract Copyright: ∼

Journal keyword(s): stars: individual: RX J0806.3+1527 - stars: novae, cataclysmic variables - stars: pulsars: general - stars: rotation - X-rays: stars

Nomenclature: 1BMW JHHMMSS.s+DDMMSS N=1.

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 - 2024 		#notes
1 RX J0806.3+1527 XB* 08 06 22.9520149296 +15 27 31.002199488   20.7 20   21.2 ~ 144 0

Query : 1999A&A...349L...1I

Basic data :
RX J0806.3+1527 -- 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: 		V* (RAT,V*), X (RX,2XMM), XB* (2003AstL), CV* (2012ApJ), * (Gaia), gam (INTREF), Opt (SDSS)
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) : 		08 06 22.9520149296 +15 27 31.002199488 (Optical) [ 2.2390 1.2134 90 ] C 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) : 		08 03 33.3391883990 +15 36 10.753436990 [ 2.2390 1.2134 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) : 		206.9246275999180 +23.3951747404016 [ 2.2390 1.2134 90 ]
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) :
B 20.7 [~] E ~
V 20 [~] E 1999A&A...347...47B
G 20.919344 [0.029628] C 2020yCat.1350....0G
I 21.2 [~] D 2006IBVS.5721....1K
u (AB) 20.334 [0.048] D 2009ApJS..182..543A
g (AB) 20.740 [0.026] D 2009ApJS..182..543A
r (AB) 21.221 [0.05] D 2009ApJS..182..543A
i (AB) 21.539 [0.099] D 2009ApJS..182..543A
z (AB) 21.679 [0.417] E 2009ApJS..182..543A
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 (10) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

RX J0806.3+1527 RAT J080622.95+152731.2 2XMM J080622.9+152730 Gaia DR3 654879021108862464
1BMW J080622.8+152732 SDSS J080622.95+152731.0 [BTR99] J080621.7+152715
INTREF 343 V* HM Cnc Gaia DR2 654879021108862464

References (144 between 1850 and 2024) (Total 144)
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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Observing logs


XMM : 1   

   

External archives :

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

Data at NED - NASA/IPAC Extragalactic Database : RX J0806.3+1527

Link by name to the catalogue in VizieR :

SDSS J080622.95+152731.0 V* HM Cnc Gaia DR2 654879021108862464 Gaia DR3 654879021108862464

Search by coordinates in Vizier (radius: 5 arcsec)

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