Timing observations of neutron stars and black holes

Details Timing observations of neutron stars and black holes Timing observations of neutron stars and black holes

Aug 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990aipc..211...23w&link_type=abstract

IN: High-energy astrophysics in the 21st century; Proceedings of the Workshop, Taos, NM, Dec. 11-14, 1989 (A91-47977 20-90). New

Astronomy and Astrophysics

Astronomy

Black Holes (Astronomy), Neutron Stars, X Ray Astronomy, Astrometry, Time Measurement

Scientific paper

The applications of millisecond and submillisecond X-ray timing to the study neutron stars and black holes is discussed with particular attention given to a very large X-ray-sensitive area apparatus. A large collecting area of much more than 10 sq m is suggested to allow the examination of timing processes at low-level modulation. The quantification of timescales and modulation depths therefore describe phenomena such as binary pulsar spin, millisecond binary X-ray pulsars, and neutron star vibrations. The largest existing arrays permit modulation depths of 0.001 times; this is considered the minimum for such observations. Collimators are shown to provide the adequate source isolation, and the limitations of mirrors for collecting photons are given. A 2D planar structure covered with a detector element is proposed for studies of timing in neutron stars and black holes.

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