Broad-band contemporaneous study of the Seyfert galaxy NGC 4151

Journal Article · Sun Nov 30 23:00:00 EST 1986 · Astrophys. J.; (United States)

DOI:https://doi.org/10.1086/164802· OSTI ID:6541618

Bassani, I; Butler, R C; Di Cocco, G; Della Ventura, A; Perotti, F

The Seyfert galaxy NGC 4151 was observed on May 18, 1980 at hard X-ray/low gamma ray energies with the MISO telescope. The only excess detected was at the 3.5 sigma level in the X-ray energy range 35-105 keV. Concurrent UV, IR, optical and soft X-ray observations performed from January-May 1980 are used in conjunction with the MISO data to estimate the radiation characteristics of NGC 4151 and to define limits to models for the central powerhouse of the object, one of the most luminous in the sky. 39 references.

• Research Organization: CNR, Istituto di Tecnologie e Studio delle Radiazione Extraterrestri, Bologna, Italy; CNR, Istituto di Fisica Cosmica, Milan, Italy
• OSTI ID: 6541618
• Journal Information: Astrophys. J.; (United States), Journal Name: Astrophys. J.; (United States) Vol. 311; ISSN ASJOA
• Country of Publication: United States
• Language: English

Related Subjects

640105* -- Astrophysics & Cosmology-- Galaxies
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ELECTROMAGNETIC RADIATION
FLUX DENSITY
GALAXIES
GAMMA RADIATION
HARD X RADIATION
INFRARED SPECTRA
IONIZING RADIATIONS
LUMINOSITY
OPTICAL PROPERTIES
PHYSICAL PROPERTIES
RADIANT FLUX DENSITY
RADIATIONS
SEYFERT GALAXIES
SPECTRA
ULTRAVIOLET SPECTRA
VISIBLE SPECTRA
X RADIATION