Published August 1985 | Version v1
Report Metadata-only

Hercules X-1: pulsed gamma-rays detected above 150 GeV

Creators

  • 1. Iowa State Univ., Ames
  • 2. Hawaii Univ., Honolulu

Description

The 1.24 second binary pulsar Her X-1, first observed in X-rays in 1971 by UHURU has now been seen as a sporadic gamma ray source from 1 TeV up to at least 500 TeV. In addition, reprocessed optical and infrared pulses are seen from the companion star HZ Herculis. Thus measurements of the Her X-1/HZ Herculis system span 15 decades in energy, rivaling both the Crab pulsar and Cygnus X-3 in this respect for a discrete galactic source

Additional details

Publishing Information

Imprint Title
Ninteenth International Cosmic Ray Conference. OG sessions, volume 1
Journal Page Range
vp.
Report number
NASA-CP--2376-VOL-1

INIS

Country of Publication
United States
Country of Input or Organization
United States
INIS RN
17080542
Subject category
S79: ASTROPHYSICS, COSMOLOGY AND ASTRONOMY;
Resource subtype / Literary indicator
Non-conventional Literature
Descriptors DEI
BINARY STARS; COSMIC GAMMA BURSTS; COSMIC GAMMA SOURCES; COSMIC SHOWERS; COSMIC X-RAY SOURCES; INFRARED RADIATION; OPTICAL PROPERTIES; PULSARS
Descriptors DEC
COSMIC RADIATION; COSMIC RADIO SOURCES; COSMIC RAY SOURCES; ELECTROMAGNETIC RADIATION; IONIZING RADIATIONS; PHYSICAL PROPERTIES; PRIMARY COSMIC RADIATION; RADIATIONS; SECONDARY COSMIC RADIATION; SHOWERS; STARS