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PCA tomography and kinematics of the nucleus of the LINER galaxy M81

Grant number: 11/20224-5
Support Opportunities:Scholarships in Brazil - Scientific Initiation
Effective date (Start): December 01, 2011
Effective date (End): November 30, 2013
Field of knowledge:Physical Sciences and Mathematics - Astronomy - Extragalactic Astrophysics
Principal Investigator:João Evangelista Steiner
Grantee:Louise Maria Giansante Martins
Host Institution: Instituto de Astronomia, Geofísica e Ciências Atmosféricas (IAG). Universidade de São Paulo (USP). São Paulo , SP, Brazil


Active galactic nuclei are associated with black holes in the process of mass accretion. They can be classified in several ways (QSO, Seyfert 1 and 2, LINERs etc.) depending on their observational characteristics. The study of these objects can reveal not only the geometry and physical processes associated with them but also their role in the evolution of the galaxy as a whole. The object of this study is the nucleus of M 81 a spiral galaxy SA(s)ab, located at 3.7 Mpc. We will re-analyze data from the database and available for public access obtained with integral field spectroscopy made with the IFU / GMOS on the Gemini North telescope. We intend to make spectral synthesis in order to remove the stellar contribution. After that, we will apply the PCA Tomography and construct Greenstein diagrams in order to study the kinematics of the central part of the galaxy. We want to construct a model of mass distribution of central bulge and put an upper limit on black hole mass from the study of emission lines.(AU)

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Scientific publications
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
RICCI, T. V.; STEINER, J. E.; GIANSANTE, L.. A hot bubble at the centre of M81. Astronomy & Astrophysics, v. 576, . (12/21350-7, 11/20224-5)

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