The broad-band 0.1-200 keV spcctra of a selected sample of Seyfert 2 galaxies have been measured within the BeppoSAX Core Programme. Here we present the first results obtained for 3 objects, NGC 7172, MKN 3 and NGC 7674. The broad band BeppoSAX data illustrate the high spectral complexity often found in Seyfert 2 galaxies predicted by unified models: NGC 7172 is found to be a Compton-thin source in which the primary emission is seen through absorbing material; MKN 3 is a border line object where the emission is partly seen directly and partly reprocessed by the absorbing material; NGC 7674 is an example of a Compton-thick source where the primary emission is hidden and only reprocessed radiation is observed.
Malaguti, G., Bassani, L., Cappi, M., Comastri, A., Costa, E., Dadina, M., et al. (1999). BeppoSAX broad-band spectra of Seyfert 2 galaxies. NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS, 69(1-3), 542-545 [10.1016/S0920-5632(98)00281-3].
BeppoSAX broad-band spectra of Seyfert 2 galaxies
MATT, Giorgio;
1999-01-01
Abstract
The broad-band 0.1-200 keV spcctra of a selected sample of Seyfert 2 galaxies have been measured within the BeppoSAX Core Programme. Here we present the first results obtained for 3 objects, NGC 7172, MKN 3 and NGC 7674. The broad band BeppoSAX data illustrate the high spectral complexity often found in Seyfert 2 galaxies predicted by unified models: NGC 7172 is found to be a Compton-thin source in which the primary emission is seen through absorbing material; MKN 3 is a border line object where the emission is partly seen directly and partly reprocessed by the absorbing material; NGC 7674 is an example of a Compton-thick source where the primary emission is hidden and only reprocessed radiation is observed.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
