BeppoSAX unveils the nuclear component in NGC 6240

P. Vignati; S. Molendi; G. Matt; M. Guainazzi; L. A. Antonelli; L. Bassani; W. N. Brandt; A. C. Fabian; K. Iwasawa; R. Maiolino; G. Malaguti; A. Marconi; G. G. Perola

BeppoSAX unveils the nuclear component in NGC 6240

P. Vignati
, S. Molendi
, G. Matt
, M. Guainazzi
, L. A. Antonelli
, L. Bassani
, W. N. Brandt
, A. C. Fabian
, K. Iwasawa
, R. Maiolino
, G. Malaguti
, A. Marconi
, G. G. Perola

Research output: Contribution to journal › Review article › peer-review

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 NH ∼ 2 × 10²⁴ cm^-2. The 2-10 keV X-ray luminosity of > 10⁴⁴ 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.

Original language	English (US)
Pages (from-to)	L57-L60
Journal	Astronomy and Astrophysics
Volume	349
Issue number	2
State	Published - 1999

All Science Journal Classification (ASJC) codes

Astronomy and Astrophysics
Space and Planetary Science

Cite this

@article{d9e934ac0723426295994a58e4575b54,

title = "BeppoSAX unveils the nuclear component in NGC 6240",

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 NH ∼ 2 × 1024 cm-2. The 2-10 keV X-ray luminosity of > 1044 erg s-1 definitely proves that a powerful AGN is hosted in this galaxy, despite the LINER optical appearance. Assuming the typical LX/Lbol ratio for quasars, our result implies that it is the AGN and not the starburst that dominates the energy output of NGC 6240.",

author = "P. Vignati and S. Molendi and G. Matt and M. Guainazzi and Antonelli, \{L. A.\} and L. Bassani and Brandt, \{W. N.\} and Fabian, \{A. C.\} and K. Iwasawa and R. Maiolino and G. Malaguti and A. Marconi and Perola, \{G. G.\}",

year = "1999",

language = "English (US)",

volume = "349",

pages = "L57--L60",

journal = "Astronomy and Astrophysics",

issn = "0004-6361",

publisher = "EDP Sciences",

number = "2",

}

TY - JOUR

T1 - BeppoSAX unveils the nuclear component in NGC 6240

AU - Vignati, P.

AU - Molendi, S.

AU - Matt, G.

AU - Guainazzi, M.

AU - Antonelli, L. A.

AU - Bassani, L.

AU - Brandt, W. N.

AU - Fabian, A. C.

AU - Iwasawa, K.

AU - Maiolino, R.

AU - Malaguti, G.

AU - Marconi, A.

AU - Perola, G. G.

PY - 1999

Y1 - 1999

N2 - 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 NH ∼ 2 × 1024 cm-2. The 2-10 keV X-ray luminosity of > 1044 erg s-1 definitely proves that a powerful AGN is hosted in this galaxy, despite the LINER optical appearance. Assuming the typical LX/Lbol ratio for quasars, our result implies that it is the AGN and not the starburst that dominates the energy output of NGC 6240.

AB - 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 NH ∼ 2 × 1024 cm-2. The 2-10 keV X-ray luminosity of > 1044 erg s-1 definitely proves that a powerful AGN is hosted in this galaxy, despite the LINER optical appearance. Assuming the typical LX/Lbol ratio for quasars, our result implies that it is the AGN and not the starburst that dominates the energy output of NGC 6240.

UR - https://www.scopus.com/pages/publications/0002297247

UR - https://www.scopus.com/pages/publications/0002297247#tab=citedBy

M3 - Review article

AN - SCOPUS:0002297247

SN - 0004-6361

VL - 349

SP - L57-L60

JO - Astronomy and Astrophysics

JF - Astronomy and Astrophysics

IS - 2

ER -

BeppoSAX unveils the nuclear component in NGC 6240

Abstract

All Science Journal Classification (ASJC) codes

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