Discovery of X-Ray Emission from the Crab Pulsar at Pulse Minimum

Details Discovery of X-Ray Emission from the Crab Pulsar at Pulse Minimum Discovery of X-Ray Emission from the Crab Pulsar at Pulse Minimum

Jun 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001apj...554l.173t&link_type=abstract

The Astrophysical Journal, Volume 554, Issue 2, pp. L173-L176.

Astronomy and Astrophysics

Astronomy

45

Ism: Individual: Name: Crab Nebula, Stars: Pulsars: Individual: Name: Crab Pulsar, Radiation Mechanisms: Nonthermal, Stars: Neutron, X-Rays: General

Scientific paper

The Chandra X-Ray Observatory observed the Crab pulsar using the Low-Energy Transmission Grating with the High-Resolution Camera. Time-resolved zeroth-order images reveal that the pulsar emits X-rays at all pulse phases. Analysis of the flux at minimum-most likely nonthermal in origin-places an upper limit (T∞<2.1 MK) on the surface temperature of the underlying neutron star. In addition, analysis of the pulse profile establishes that the error in the Chandra-determined absolute time is quite small, -0.2+/-0.1 ms.

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