Published August 1985
| Version v1
Report
Balloon observations of hard X-rays from NGC 4151 and an X-ray transient source
Description
An X-ray telescope consisting of 400 sq cm phoswich detectors (NaI(Tl)/CsI(Na)) was flown from Hyderabad (India) on 31 October 1980; the field of view was 11 deg x 1 deg FWHM. During a five hour observation at 5 millibars two X-ray sources were seen: (1) the variable Seyfert Galaxy NGC 4151; and (2) a transident of approximately 8 minutes duration in the vicinity of the variable source 4U1444 43 which may be associated with the galaxy NGC 5608. X-ray fluxes and spectra in 18-120 keV X-rays are presented
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
- 17080580
- Subject category
- S79: ASTROPHYSICS, COSMOLOGY AND ASTRONOMY;
- Resource subtype / Literary indicator
- Non-conventional Literature
- Descriptors DEI
- BALLOONS; COSMIC RADIO SOURCES; COSMIC X-RAY SOURCES; HARD X RADIATION; SEYFERT GALAXIES
- Descriptors DEC
- COSMIC RAY SOURCES; ELECTROMAGNETIC RADIATION; GALAXIES; IONIZING RADIATIONS; RADIATIONS; X RADIATION