Exploring the X-ray Universe (2nd Edition) - download pdf or read online

By Frederick D. Seward, Philip A. Charles

ISBN-10: 0521884837

ISBN-13: 9780521884839

Shooting the thrill and accomplishments of X-ray astronomy, this moment variation now incorporates a broader diversity of astronomical phenomena and dramatic new effects from the main strong X-ray telescopes. overlaying all components of astronomical learn, starting from the smallest to the most important gadgets, from neutron stars to clusters of galaxies, this textbook is perfect for undergraduate scholars. each one bankruptcy starts off with the elemental facets of the subject, explores the background of discoveries, and examines intimately sleek observations and their importance. This re-creation has been up-to-date with effects from the newest space-based tools, together with ROSAT, BeppoSAX, ASCA, Chandra, and XMM. New chapters hide X-ray emission techniques, the interstellar medium, the sunlight process, and gamma-ray bursts. The textual content is supported by means of over three hundred figures, with tables directory the homes of the assets, and extra really expert technical issues separated in bins.

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Extra info for Exploring the X-ray Universe (2nd Edition)

Sample text

G. on ROSAT). Tanaka et al. (1994) give a description of the observatory. 8 Rossi XTE: High temporal resolution The X-ray Timing Explorer (XTE) mission, launched at the very end of 1995 (and still operating 13 years later), was designed for fast X-ray timing. 5 SIGNIFICANT MISSIONS are reasonably well separated from their neighbours. It is also equipped to detect and monitor transient sources over the whole sky. RXTE carries three sets of detectors: a large-area proportional counter a large-area scintillation counter and an all-sky monitor.

Participation, was launched 1 June 1990. The principal instrument, an X-ray telescope, was built for high sensitivity at low photon energies (< 2 keV). Four nested reflectors focussed X-rays on either 31 32 TOOLS AND TECHNIQUES of three imaging detectors. 4 keV. With larger angles of incidence on the mirrors, it was easier to achieve a large collecting area, but the highenergy response was sacrificed (see Fig. 12). The primary detectors were two (for redundancy) gas-filled position-sensitive proportional counters, the PSPCs.

Such telescopes have been used to concentrate X-rays onto a small spectrometer or polarimeter. Two reflections, however, are required to produce an image. Imaging geometries were studied by Wolter (1952) for X-ray microscopy. The design usually adopted for a telescope is the Wolter type 1, where X-rays are first reflected from the inside of a parabolic surface of revolution and the second reflection is from the inside of a hyperbolic surface. This is shown in Fig. 10, which also illustrates the nesting of mirrors to increase the telescope’s effective area.

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Exploring the X-ray Universe (2nd Edition) by Frederick D. Seward, Philip A. Charles

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