Published July 1979 | Version v1
Journal article

New hard x-ray sources observed with HEAO A-2

Description

A search for new hard X-ray sources using data from the first complete view of the sky with the HEAO A-2 experiment has discovered 47 new sources, detected seven sources recently discovered with other experiments and significantly reduced the size of the error boxes for six previously known sources. Intensities and error are given for each of these sources; ideneifications are suggested when an error box contains an object similar to known X-ray sources. The new identifications consists of seven type 1 Seyfert galaxies, including two whose Seyfert characteristics were discovered as a result of their location in an X-ray error box; one intermediate Seyfert galaxy; three Abell clusters; five N galaxies; two bursting radio sources; and an additional three nearby galaxies with bright nuclei and narrow emmission lines

Additional details

Publishing Information

Journal Title
Astrophys. J., Suppl. Ser.
Journal Volume
40
Journal Issue
3
Series
Astrophys. J., Suppl. Ser.
Journal Page Range
657-665
ISSN
0067-0049

INIS

Country of Publication
United States
Country of Input or Organization
United States
INIS RN
11515648
Subject category
S79: ASTROPHYSICS, COSMOLOGY AND ASTRONOMY;
Descriptors DEI
COSMIC X-RAY SOURCES; GALAXY CLUSTERS; SEYFERT GALAXIES; X RADIATION
Descriptors DEC
COSMIC RAY SOURCES; ELECTROMAGNETIC RADIATION; GALAXIES; IONIZING RADIATIONS; RADIATIONS