SIMBAD references

2000ApJ...537L.115S - Astrophys. J., 537, L115-L118 (2000/July-2)

The discovery of quiescent X-ray emission from SAX J1808.4-3658, the transient 2.5 millisecond pulsar.

STELLA L., CAMPANA S., MEREGHETTI S., RICCI D. and ISRAEL G.L.

Abstract (from CDS):

We report on a 20 ks BeppoSAX observation of the transient 2.5 ms X-ray pulsar SAX J1808.4-3658 in its quiescent state. A source at a level of ∼3x10–3 counts.s–1 was detected with the BeppoSAX Medium Energy Concentrator Spectrometer at a position consistent with that of SAX J1808.4-3658. The inferred 0.5-10 keV luminosity was ~(2-3)x1032 ergs.s–1 (for a distance of 4 kpc), a value similar to that measured from other quiescent low-mass X-ray transients hosting an old neutron star. This result is discussed in the light of the propeller and radio pulsar shock emission models for the quiescent emission of these systems.

Abstract Copyright: ∼

Journal keyword(s): Accretion, Accretion Disks - Stars: Binaries: Close - Stars: Pulsars: Individual: Alphanumeric: SAX J1808.4-3658 - Stars: Neutron - X-Rays: Stars

Nomenclature: Fig.1: [SCM2000] Source A N=1.

Simbad objects: 4

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