No CrossRef data available.
Article contents
High S/N ROSAT-PSPC Observations of the Quasar PG 1116+215: Power Law Shape of the Soft X-ray Spectrum
Published online by Cambridge University Press: 19 July 2016
Extract
The quasar PG 1116+215 (Schmidt and Green, 1983) was selected because it is an intrinsically bright low redshift quasar. With z = 0.177 the soft X-ray emission is not significantly redshifted outside the ROSAT band. Its apparent magnitude mv = 15.04 (Véron and Véron, 1989) corresponds to Mv = −25.0 for H0 = 50 km s−1 Mpc−1 and q0 = 0. An additional selection criterion was low NH. Radio observations give NH = 1.44 × 1020 cm−2 (Elvis, Lockman and Wilkes, 1989).
- Type
- Variability
- Information
- Symposium - International Astronomical Union , Volume 159: Multi-Wavelength Continuum Emission of AGN , 1994 , pp. 197 - 200
- Copyright
- Copyright © Kluwer 1994