The direct nuclear X-ray emission of the ultraluminous IRAS galaxy NGC 6240 has been observed by BeppoSAX. It is seen through an absorber with N-H similar to 2 x 10(24) cm(-2) The 2-10 keV X-ray luminosity of > 10(44) erg s(-1) definitely proves that a powerful AGN is hosted in this galaxy, despite the LINER optical appearance. Assuming the typical L-X/L-bol ratio for quasars, our result implies that it is the AGN and not the starburst that dominates the energy output of NGC 6240.

Vignati, P., Molendi, S., Matt, G., Guainazzi, M., Antonelli, L.a., Bassani, L., et al. (1999). BeppoSAX unveils the nuclear component in NGC 6240 RID C-5880-2009. ASTRONOMY & ASTROPHYSICS, 349(2), L57-L60.

BeppoSAX unveils the nuclear component in NGC 6240 RID C-5880-2009

MATT, Giorgio;
1999-01-01

Abstract

The direct nuclear X-ray emission of the ultraluminous IRAS galaxy NGC 6240 has been observed by BeppoSAX. It is seen through an absorber with N-H similar to 2 x 10(24) cm(-2) The 2-10 keV X-ray luminosity of > 10(44) erg s(-1) definitely proves that a powerful AGN is hosted in this galaxy, despite the LINER optical appearance. Assuming the typical L-X/L-bol ratio for quasars, our result implies that it is the AGN and not the starburst that dominates the energy output of NGC 6240.
1999
Vignati, P., Molendi, S., Matt, G., Guainazzi, M., Antonelli, L.a., Bassani, L., et al. (1999). BeppoSAX unveils the nuclear component in NGC 6240 RID C-5880-2009. ASTRONOMY & ASTROPHYSICS, 349(2), L57-L60.
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11590/114246
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus ND
  • ???jsp.display-item.citation.isi??? 178
social impact