Publication Date:
2019-06-27
Description:
The paper presents a 1-10-keV survey of distance class 4, 5, and 6 Abell clusters using the HEAO 1 NRL large area survey experiment. The survey is a little less than 1/30 of the Abell catalog. Eleven clusters are identified with X-ray sources, and X-ray upper limits are provided for 60 others.
Keywords:
ASTROPHYSICS
Type:
Astrophysical Journal; vol. 235
Format:
text