THE DETECTION OF EXTREME LOW-LUMINOSITY AGNS

被引:0
作者
Neri-Larios, D. M. [1 ]
Torres-Papaqui, J. P. [1 ]
Coziol, R. [1 ]
Islas-Islas, J. M. [1 ]
Ortega-Minakata, R. A. [1 ]
机构
[1] Univ Guanajuato, Dept Astron, Guanajuato 36000, Mexico
来源
XIII LATIN AMERICAN REGIONAL IAU MEETING | 2011年 / 40卷
关键词
galaxies: active; galaxies: evolution; DIGITAL SKY SURVEY; COMPACT-GROUPS; GALAXIES; CLASSIFICATION; EMISSION;
D O I
暂无
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We explore the diagnostic diagram that uses the ratio of emission lines ([NII]lambda 6584 angstrom/H alpha) versus equivalent width of [NII]lambda 6584 angstrom, proposed by Coziol et al. (1998) to a sample obtained from Sloan Digital Sky Survey Data Release 5 to separate star-forming and active galaxies from low-luminosity AGNs. This diagnostic diagram does not need the classical emission lines like [OIII]lambda 5007 angstrom, or H beta to classify activity type. We show empirically that this combination of emission lines can be used to search the called Low-Luminosity AGN.
引用
收藏
页码:80 / 81
页数:2
相关论文
共 50 条
  • [21] THE LOW-LUMINOSITY END OF THE RADIUS-LUMINOSITY RELATIONSHIP FOR ACTIVE GALACTIC NUCLEI
    Bentz, Misty C.
    Denney, Kelly D.
    Grier, Catherine J.
    Barth, Aaron J.
    Peterson, Bradley M.
    Vestergaard, Marianne
    Bennert, Vardha N.
    Canalizo, Gabriela
    De Rosa, Gisella
    Filippenko, Alexei V.
    Gates, Elinor L.
    Greene, Jenny E.
    Li, Weidong
    Malkan, Matthew A.
    Pogge, Richard W.
    Stern, Daniel
    Treu, Tommaso
    Woo, Jong-Hak
    [J]. ASTROPHYSICAL JOURNAL, 2013, 767 (02)
  • [22] Extreme X-ray behavior of the low-luminosity active nucleus in NGC 4395
    Moran, EC
    Eracleous, M
    Leighly, KM
    Chartas, G
    Filippenko, AV
    Ho, LC
    Blanco, PR
    [J]. ASTRONOMICAL JOURNAL, 2005, 129 (05) : 2108 - 2118
  • [23] The low-luminosity active galactic nucleus in the centre of the Galaxy
    Contini, M.
    [J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2011, 418 (03) : 1935 - 1947
  • [24] Radio sources in low-luminosity active galactic nuclei - III. "AGNs" in a distance-limited sample of "LLAGNs"
    Nagar, NM
    Falcke, H
    Wilson, AS
    Ulvestad, JS
    [J]. ASTRONOMY & ASTROPHYSICS, 2002, 392 (01) : 53 - 82
  • [25] REVISITING THE COMPLETENESS AND LUMINOSITY FUNCTION IN HIGH-REDSHIFT LOW-LUMINOSITY QUASAR SURVEYS
    Niida, Mana
    Nagao, Tohru
    Ikeda, Hiroyuki
    Matsuoka, Kenta
    Kobayashi, Masakazu A. R.
    Toba, Yoshiki
    Taniguchi, Yoshiaki
    [J]. ASTROPHYSICAL JOURNAL, 2016, 832 (02)
  • [26] Unbeamed γ-rays from low luminosity AGNs
    Nidzwiecki, Andrzej
    Xie, Fu-Guo
    Beckmann, Volker
    [J]. INTERNATIONAL WORKSHOP ON BEAMED AND UNBEAMED GAMMA-RAYS FROM GALAXIES, 2012, 355
  • [27] Luminosity function of galaxies in the nearby universe: The low-luminosity end of the nuclear activity sequence
    Vila-Vilaro, B
    [J]. PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, 2000, 52 (02) : 305 - 316
  • [28] A low-luminosity type-1 QSO sample III. Optical spectroscopic properties and activity classification
    Tremou, E.
    Garcia-Marin, M.
    Zuther, J.
    Eckart, A.
    Valencia-Schneider, M.
    Vitale, M.
    Shan, C.
    [J]. ASTRONOMY & ASTROPHYSICS, 2015, 580
  • [29] Evidence of heavy obscuration in the low-luminosity AGN NGC 4941
    Jana, Arghajit
    Naik, Sachindra
    Kumari, Neeraj
    [J]. JOURNAL OF ASTROPHYSICS AND ASTRONOMY, 2022, 43 (01)
  • [30] A Method of Identifying AGNs Based on Emission-Line Excess and the Nature of Low-Luminosity AGNs in the Sloan Digital Sky Survey. I. A New Method
    Tanaka, Masayuki
    [J]. PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, 2012, 64 (02) : 361 - 3621