Her X-1

Query : Her X-1 C.D.S. - SIMBAD4 rel 1.5.8 - 2016.08.31CEST06:26:59

Available data : Basic data  •  Identifiers  •  Plot & images  •  Bibliography  •  Measurements  •  External archives  •  Notes  •  Annotations


Basic data :
V* HZ Her -- Low 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 (2A,3A,...), * (BPS,FBS,...), V* (V*,AN,...), UV (2EUVE,EUVE,...), SB* (SBC7,SBC9), gam (INTREF), EB* (Ref), LXB (Ref), Psr (Ref), IR (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] : coordinates error major axis, minor axis (in mas at epoch defined in your output options),
    position angle (in degrees North to East of the specified coordinate frame)
  • 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) :
16 57 49.81 +35 20 32.4 (Infrared) [ 70 60 0 ] B 2003yCat.2246....0C
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] : coordinates error major axis, minor axis (in mas at epoch defined in your output options),
    position angle (in degrees North to East of the specified coordinate frame)
  • 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
FK5 coord. (ep=J2000 eq=2000) :
16 57 49.81 +35 20 32.4 [ 70 60 0 ]
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] : coordinates error major axis, minor axis (in mas at epoch defined in your output options),
    position angle (in degrees North to East of the specified coordinate frame)
  • 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) :
16 56 01.69 +35 25 04.6 [ 70 60 0 ]
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] : coordinates error major axis, minor axis (in mas at epoch defined in your output options),
    position angle (in degrees North to East of the specified coordinate frame)
  • 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) :
058.1490 +37.5230 [ 70 60 0 ]
Spectral type is made of 3 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
  • bibcode : bibcode of the spectral type reference
Spectral type:
DA D ~
Syntax of fluxes (or magnitudes) is : "filter-name flux-value [error] quality MultVarFlags bibcode"
  • filter-name : U, B, V, R, I, J, H, K, u, g, r, i, z
  • 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 (12) :
U 11.90 [~] D 2007A&A...469..807L
B 14.89 [~] D 2007A&A...467..785N
V 13.63 [~] V4 D 2014ApJS..213....9D
R 13.88 [~] D 2007A&A...467..785N
J 13.729 [0.029] C 2003yCat.2246....0C
H 13.609 [0.031] C 2003yCat.2246....0C
K 13.628 [0.034] C 2003yCat.2246....0C
u (AB) 14.708 [0.005] C 2009yCat.2294....0A
g (AB) 14.602 [0.004] C 2009yCat.2294....0A
r (AB) 13.861 [0.002] C 2009yCat.2294....0A
i (AB) 14.410 [0.004] C 2009yCat.2294....0A
z (AB) 14.193 [0.005] C 2009yCat.2294....0A
SIMBAD with radius arcmin
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within radius 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!).

The link on the acronym of the identifiers give access to the information for this acronym in the dictionary of nomenclature.
Identifiers (56) :

V* HZ Her GAT 227 PBC J1657.8+3520 1SWASP J165749.80+352032.8
2A 1655+353 GCRV 27253 RBS 1614 SWIFT J1657.7+3518
3A 1656+353 GCRV 27255 2RE J165750+352053 2U 1705+34
AN 142.1936 GCRV 27254 2RE J1657+352 3U 1653+35
1AXG J165750+3520 GCRV 27256 RE J165750+352105 4U 1656+35
BPS BS 16552-0071 GSC 02598-01298 RE J1657+352 2XMM J165749.8+352032
CRTS J165749.7+352032 1H 1656+354 ROTSE1 J165749.74+352032.4 1XRS 16560+354
2E 3791 H 1657+35 2RXP J165749.4+352033 XSS J16581+3522
2E 1656.0+3525 H 1656+354 RX J1657.8+3520 X Her X-1
1ES 1656+35.4 INTREF 730 RX J1657.8+3521 [BM83] X1656+354
2EUVE J1657+35.3 Lan 78 1RXS J165749.6+352022 [FS2003] 0862
EUVE J1657+35.3 1M 1656+354 SBC7 602 [KRL2007b] 211
FBS 1656+354 2MASS J16574981+3520323 SBC9 937 [ZEH2003] RX J1657.8+3520 1
FBS B 587 2MAXI J1658+353 SDSS J165749.81+352032.4 AAVSO 1654+35

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References (1796 between 1850 and 2016)
Simbad bibliographic survey began in 1950 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system).
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Measurements (7 types) :


distance : 1    Einstein : 1    GCRV : 4    ISO : 1    IUE : 125    V* : 2    XMM : 21   

   


External archives :

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

Data at NED - NASA/IPAC Extragalactic Database : Her X-1

Link by name to the catalogue in VizieR :

V* HZ Her EUVE J1657+35.3 FBS 1656+354 FBS B 587 GSC 02598-01298
Lan 78 2MASS J16574981+3520323 2RE J165750+352053 2RE J1657+352 1RXS J165749.6+352022
SDSS J165749.81+352032.4

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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 .
The list of all annotations to SIMBAD objects can be found here .

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2016.08.31-06:26:59

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