NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Collections About News Help Login
Back to Results
Short time transient periodicities from Cyg X-1The temporal behavior of three new events of modulated optical emission from Cyg X1, detected in July 1975, is presented. Short time periodicities in the optical band are investigated. Single photon pulses from the photomultiplier are recorded on magnetic tape together with a very accurate 1 kHz reference frequency. During playback of the tape, the reference signal gives a 1 ms timing to a scaler interfaced with a small processor and the number of photon per millisecond is recorded on a digital tape.
Document ID
19760019009
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Auriemma, G. (Laboratorio di Astrofisica Spaziale Frascati, Italy)
Cardini, D. (Laboratorio di Astrofisica Spaziale Frascati, Italy)
Costa, E. (Laboratorio di Astrofisica Spaziale Frascati, Italy)
Giovannelli, F. (Laboratorio di Astrofisica Spaziale Frascati, Italy)
Ranieri, M. (Laboratorio di Astrofisica Spaziale Frascati, Italy)
Date Acquired
August 8, 2013
Publication Date
January 1, 1976
Publication Information
Publication: NASA. Goddard Space Flight Center X-ray Binaries
Subject Category
Astrophysics
Accession Number
76N26097
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
Document Inquiry

Available Downloads

There are no available downloads for this record.

Related Records

There are no records associated with this record.
No Preview Available