1997A&A...324L...9O

Query : 1997A&A...324L...9O

1997A&A...324L...9O - Astronomy and Astrophysics, volume 324L9-12 (1997/8-2)

The complex X-ray spectrum of the low-mass X-ray binary 4U 1626-67.

OWENS A., OOSTERBROEK T. and PARMAR A.N.

Abstract (from CDS):

We report on observations of the X-ray pulsar 4U 1626-67 by the LECS instrument on-board BeppoSAX. We confirm the recent ASCA discovery of excess emission near 1keV (Angelini et al. 1995ApJ...449L..41A). The pulse period of 7.66794±0.00004s indicates that the source continues to spin-down. The phase averaged spectrum is well fit by an absorbed power-law of photon index 0.61±0.02 and a blackbody of temperature 0.33±0.02keV, together with an emission feature at 1.05±0.02keV. This spectral shape is similar to that observed by ASCA during the spin-down phase, but significantly different from measurements during spin-up. This suggests that the change in spectrum observed by ASCA may be a stable feature during spin-down intervals. The source intensity is a factor ∼2 lower than observed by ASCA three years earlier, confirming that 4U 1626-67 continues to become fainter with time.

Abstract Copyright: ∼

Journal keyword(s): stars: - individual: 4U 1626-67 - stars: neutron - X-rays: stars -stars: binaries: close

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 V* KZ TrA LXB 16 32 16.79 -67 27 39.3 17.40 18.60 18.5     ~ 626 1

Query : 1997A&A...324L...9O

Basic data :
V* KZ TrA -- Low Mass X-ray Binary
Other object types: otypes_help 		X (2022MNRAS,4U,...), LXB (2013ApJS), Psr (2007ApJS,PSR), gam (INTEGRAL1,INTREF), N* (2014MNRAS), V* (V*)
ICRS coord. (ep=J2000) : 		16 32 16.79 -67 27 39.3 (X-ray) [ 700 700 90 ] C 2012ApJ...756...27L
FK4 coord. (ep=B1950 eq=1950) : 		16 27 14.69 -67 21 14.6 [ 700 700 90 ]
Gal coord. (ep=J2000) : 		321.78837 -13.09171 [ 700 700 90 ]
Fluxes (3) :
U 17.40 [~] D 2007A&A...469..807L
B 18.60 [~] D 2007A&A...469..807L
V 18.5 [~] D 2007A&A...469..807L
SIMBAD within arcmin
Overlay Simbad points in this preview
Back
All CDSPortal (CDSPortal)
Send to sendBySAMP sendBySAMP
sedIcon
within arcsec sed-help-icon
notes:

Identifiers (24) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

4U 1626-67 INTEGRAL1 26 1RXS J163217.0-672743 3U 1626-67
2A 1627-673 INTREF 700 2S 1627-673 4U 1626-673
3A 1627-674 1M 1626-673 SRGA J163217.0-672738 V* KZ TrA
1H 1627-673 2MAXI J1632-674 SWIFT J1632.4-6729 2XMM J163216.7-672739
H 1616-67 PBC J1632.2-6727 SWIFT J1632.3-6725 [BM83] X1627-673
H 1627-673 PSR B1627-67.3 2U 1626-67 [KRL2007b] 191

References (626 between 1850 and 2026) (Total 626)
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

Distance : 1   

   

Observing logs
XMM : 4   

   

External archives :

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

Data at NED - NASA/IPAC Extragalactic Database : V* KZ TrA

Link by name to the catalogue in VizieR :

1RXS J163217.0-672743 V* KZ TrA

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 1997A&A...324L...9O and select 'bookmark this link' or equivalent in the popup menu