Published August 1977 | Version v1
Miscellaneous Metadata-only

Ariels measurement of sources with power law spectra and fast time variations

Creators

  • 1. Imperial Coll. of Science and Technology, London (UK)

Description

Several hard C-ray sources appear to show both power law spectra and exhibit fast, aperiodic time variations. One example of this class, Ser X-1, is studied in detail. It has a mean spectral shape dN/dE=2.9.10sup(-2.3)ph cm-2 keV-1 s-1, shows no periodic variations above the 5% level at low energies in the 64s-2400s period range but exhibits nonperiodic fluctuations roughly following a (frequency)-1 power law and also emits bursts. The general ideas of hydrodynamic turbulence are used within the context of an inverse Compton model to explain the observa-tions. (author)

Additional details

Publishing Information

Imprint Title
Fifteenth international cosmic ray conference, v. 1, OG session
Journal Page Range
p. 145-150.
Report number
INIS-mf--4751

Conference

Title
15. International cosmic ray conference.
Dates
13 - 26 Aug 1977.
Place
Plovdiv, Bulgaria.

INIS

Country of Publication
Bulgaria
Country of Input or Organization
Bulgaria
INIS RN
10439359
Subject category
S79: ASTROPHYSICS, COSMOLOGY AND ASTRONOMY;
Resource subtype / Literary indicator
Conference
Descriptors DEI
COMPTON EFFECT; COSMIC X-RAY SOURCES; ENERGY YIELD; FLUCTUATIONS; KEV RANGE; MAGNETOHYDRODYNAMICS; NEUTRON STARS; PRIMARY COSMIC RADIATION; PULSARS; ROTATION; SCINTILLATION COUNTERS; TELESCOPE COUNTERS; VARIATIONS; X RADIATION; X-RAY SPECTRA
Descriptors DEC
BASIC INTERACTIONS; COSMIC RADIATION; COSMIC RADIO SOURCES; COSMIC RAY SOURCES; ELASTIC SCATTERING; ELECTROMAGNETIC INTERACTIONS; ELECTROMAGNETIC RADIATION; ENERGY RANGE; FLUID MECHANICS; HYDRODYNAMICS; INTERACTIONS; IONIZING RADIATIONS; MEASURING INSTRUMENTS; MECHANICS; RADIATION DETECTORS; RADIATIONS; SCATTERING; SPECTRA; STARS