An enshrouded active galactic nucleus in the merging starburst system ARP 299 revealed by BeppoSAX

被引：63

作者：

Della Ceca, R

Ballo, L

Tavecchio, F

Maraschi, L

Petrucci, PO

Bassani, L

Cappi, M

Dadina, M

Franceschini, A

Malaguti, G

Palumbo, GGC

Persic, M

机构：

[1] Osserv Astron Brera, I-20121 Milan, Italy

[2] Observ Grenoble, Astrophys Lab, F-38041 Grenoble, France

[3] CNR, Ist Tesre, I-40129 Bologna, Italy

[4] Univ Padua, Dipartimento Astron, I-35122 Padua, Italy

[5] Univ Bologna, Dipartimento Astron, I-40127 Bologna, Italy

[6] Osserv Astron Trieste, I-34131 Trieste, Italy

来源：

ASTROPHYSICAL JOURNAL | 2002年 / 581卷 / 01期

关键词：

galaxies : active; galaxies; individual; (IC; 694; NGC; 3690); galaxies : nuclei; galaxies : starburst; X-rays : galaxies;

D O I：

10.1086/345925

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Using a long (similar or equal to150 ks) broadband (0.1- 40 keV) BeppoSAX observation of the merging starburst system Arp 299 (=IC 694 + NGC 3690), we found the first unambiguous evidence of the presence of a deeply buried (N-H similar or equal to 2.5 x 10(24) cm(-2)) active galactic nucleus (AGN) having an intrinsic luminosity of L0.5-100 (keV) similar or equal to 1.9 x 10(43) ergs s(-1). The X- ray spectral properties of this AGN are discussed in detail, as well as the thermal component detected at soft X- ray energies, which, most likely, is associated with the starburst.

引用

页码：L9 / L13

页数：5

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