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Detection of faint broad emission lines in type 2 AGNs - III. On the MBH-σ☆ relation of type 2 AGNs
被引:17
|作者:
Ricci, F.
[1
,2
]
La Franca, F.
[1
]
Marconi, A.
[3
,4
]
Onori, F.
[5
,6
]
Shankar, F.
[7
]
Schneider, R.
[8
,9
]
Sani, E.
[2
]
Bianchi, S.
[1
]
Bongiorno, A.
[9
]
Brusa, M.
[10
,11
]
Fiore, F.
[8
,9
]
Maiolino, R.
[12
,13
]
Vignali, C.
[10
,11
]
机构:
[1] Univ Roma Tre, Dipartimento Matemat & Fis, Via Vasca Navale 84, I-00146 Rome, Italy
[2] European Southern Observ, Alonso Cordova 3107,Casilla 19, Santiago 19001, Chile
[3] Univ Florence, Dipartimento Fis & Astron, Via G Sansone 1, I-50019 Sesto Fiorentino, Italy
[4] INAF, Osservatorio Astrofis Arcetri, Largo E Fermi 5, I-50125 Florence, Italy
[5] SRON Netherlands Inst Space Res, Sorbonnelaan 2, NL-3584 CA Utrecht, Netherlands
[6] Radboud Univ Nijmegen, Dept Astrophys IMAPP, POB 9010, NL-6500 GL Nijmegen, Netherlands
[7] Univ Southampton, Dept Phys & Astron, Highfield SO17 1BJ, England
[8] Sapienza Univ Roma, Dipartimento Fis, Ple Aldo Moro 2, I-00185 Rome, Italy
[9] INAF, Osservatorio Astron Roma, Via Frascati 33, I-00044 Monte Porzio Catone, Italy
[10] Univ Bologna, Dipartimento Fis & Astron, Viale Berti Pichat 6-2, I-40127 Bologna, Italy
[11] INAF, Osservatorio Astron Bologna, Via Ranzani 1, I-40127 Bologna, Italy
[12] Univ Cambridge, Cavendish Lab, 19 JJ Thomson Ave, Cambridge CB3 0HE, England
[13] Univ Cambridge, Kavli Inst Cosmol, Madingley Rd, Cambridge CB3 0HA, England
基金:
英国科学技术设施理事会;
美国国家航空航天局;
欧洲研究理事会;
关键词:
galaxies: active;
galaxies: nuclei;
quasars: emission lines;
infrared: galaxies;
X-rays: galaxies;
ACTIVE GALACTIC NUCLEI;
SUPERMASSIVE BLACK-HOLES;
DIGITAL SKY SURVEY;
LENTICULAR GALAXIES;
MONITORING PROJECT;
HELLAS2XMM SURVEY;
LOW-LUMINOSITY;
HOST GALAXIES;
BULGE MASS;
QUASARS;
D O I:
10.1093/mnrasl/slx103
中图分类号:
P1 [天文学];
学科分类号:
0704 ;
摘要:
Type 2 active galactic nuclei (AGNs) represent the majority of the AGN population. However, due to the difficulties in measuring their black hole (BH) masses, it is still unknown whether they follow the same BH mass-host galaxy scaling relations valid for quiescent galaxies and type 1 AGNs. Here, we present the locus of type 2 AGNs having virial BH mass estimates in the MBH-sigma star plane. Our analysis shows that the BH masses of type 2 AGNs are similar to 0.9 dex smaller than type 1 AGNs at s sigma star similar to 185 km s(-1), regardless of the (early/late) AGN host galaxy morphology. Equivalently, type 2 AGN host galaxies have stellar velocity dispersions similar to 0.2 dex higher than type 1 AGN hosts at M-BH similar to 10(7) M-circle dot.
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页码:L41 / L46
页数:6
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