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The nature of the LINER in the galaxy NGC 404

Published online by Cambridge University Press:  13 April 2010

Roberto B. Menezes ,
João E. Steiner ,
Tiago V. Ricci  and
Alexandre S. Oliveira
Roberto B. Menezes
Affiliation:
Instituto de Astronomia Geofísica e Ciências Atmosféricas, Universidade de São Paulo, Rua do Matão, 1226, São Paulo, SP, Brasil
João E. Steiner
Affiliation:
Instituto de Astronomia Geofísica e Ciências Atmosféricas, Universidade de São Paulo, Rua do Matão, 1226, São Paulo, SP, Brasil
Tiago V. Ricci
Affiliation:
Instituto de Astronomia Geofísica e Ciências Atmosféricas, Universidade de São Paulo, Rua do Matão, 1226, São Paulo, SP, Brasil
Alexandre S. Oliveira
Affiliation:
IP&D, Universidade do Vale do Paraíba, Av. Shishima Hifumi, 2911, São José dos Campos, SP, Brasil
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Abstract

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NGC 404, at a distance of 3.4 Mpc, is the nearest S0 galaxy. This galaxy harbors a LINER; however, since the spectrum does not show a broad Hα emission, it is not certain that this LINER is a low luminosity AGN and its nature is still an open question. HST observations show the existence of stellar populations with an age of 3 × 108 years in the galactic bulge and with an age of 6–15 × 109 years in the galactic disk. In this work, we present an analysis of the data cube of NGC 404 obtained with the IFU (Integral Field Unity) of the GMOS (Gemini Multi-Object Spectrograph) on the Gemini North telescope.

Keywords

Active galactic nucleistarburst galaxiespopulation synthesisspectroscopy
Type
Poster Papers
Information
Proceedings of the International Astronomical Union , Volume 5 , Symposium S262: Stellar Populations – Planning for the Next Decade , August 2009 , pp. 390 - 391
Copyright
Copyright © International Astronomical Union 2010

References

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