Benvenuti nell'Anagrafe della Ricerca d'Ateneo
La valutazione delle attività di ricerca che si svolgono nelle università ha assunto un'importanza rilevante sia per l'intero sistema universitario sia all'interno di ogni singolo ateneo. Roma Tre si è quindi dotata di idonei strumenti informativi in grado di supportare al meglio le azioni di monitoraggio e di valutazione delle attività di ricerca svolte nei propri dipartimentied ha realizzato una Anagrafe della Ricerca di Ateneo.
EnglishWe discuss the iron K line complex in NGC 1068. The line complex basically consists of three components, as previously reported. A new analysis of the ASCA data shows that cold reflection appears to dominate the observed X-ray emission above 4 keV based on the detection of 'Compton shoulder', a weak red wing of the 6.4 keV fluorescence iron K line, and a very flat continuum. The other two weaker lines at higher energies can be identified with FeXXV and FeXXVI and suggest an highly ionized X-ray mirror as well, although the line energies are systematically lower than those expected from the resonant lines, consistent with a redshift by 1.5%.
Iwasawa K, Fabian AC, & Matt G (1997). X-ray spectroscopy of the scattered emission in NGC 1068. ASTROPHYSICS AND SPACE SCIENCE, 248(1-2), 199-206.
| Titolo: | X-ray spectroscopy of the scattered emission in NGC 1068 | |
| Autori: | ||
| Data di pubblicazione: | 1997 | |
| Rivista: | ||
| Citazione: | Iwasawa K, Fabian AC, & Matt G (1997). X-ray spectroscopy of the scattered emission in NGC 1068. ASTROPHYSICS AND SPACE SCIENCE, 248(1-2), 199-206. | |
| Abstract: | We discuss the iron K line complex in NGC 1068. The line complex basically consists of three components, as previously reported. A new analysis of the ASCA data shows that cold reflection appears to dominate the observed X-ray emission above 4 keV based on the detection of 'Compton shoulder', a weak red wing of the 6.4 keV fluorescence iron K line, and a very flat continuum. The other two weaker lines at higher energies can be identified with FeXXV and FeXXVI and suggest an highly ionized X-ray mirror as well, although the line energies are systematically lower than those expected from the resonant lines, consistent with a redshift by 1.5%. | |
| Handle: | http://hdl.handle.net/11590/147274 | |
| Appare nelle tipologie: | 1.1 Articolo in rivista |
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