Accurate galactic N(H) values towards quasars and AGN

• 1 March 1989
• journal article
• Published by American Astronomical Society in The Astronomical Journal
• Vol. 97, 777-782
• https://doi.org/10.1086/115022

Abstract

Keywords

• ACTIVE GALACTIC NUCLEI
• QUASARS
• SKY SURVEYS (ASTRONOMY)
• X RAY SOURCES
• BRIGHTNESS TEMPERATURE
• H LINES
• HEAO 2
• RADIATION SPECTRA
• SIGNAL TO NOISE RATIOS