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The AGN Properties of the Starburst Galaxy NGC 7582

Published online by Cambridge University Press:  03 June 2010

T. V. Ricci
Affiliation:
Instituto de Astronomia, Geofísica e Ciências Atmosféricas, Universidade de São Paulo, Rua do Matão, 1226, São Paulo SP, Brazil Email: tiago@astro.iag.usp.br
J. E. Steiner
Affiliation:
Instituto de Astronomia, Geofísica e Ciências Atmosféricas, Universidade de São Paulo, Rua do Matão, 1226, São Paulo SP, Brazil Email: tiago@astro.iag.usp.br
R. B. Menezes
Affiliation:
Instituto de Astronomia, Geofísica e Ciências Atmosféricas, Universidade de São Paulo, Rua do Matão, 1226, São Paulo SP, Brazil Email: tiago@astro.iag.usp.br
A. Garcia-Rissmann
Affiliation:
Gemini Observatory
R. Cid-Fernandes
Affiliation:
Universidade Federal de Santa Catarina
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NGC 7582 was identified as a starburst galaxy in the optical (Veron et al. 1981) but its X-ray emission is typical of a Seyfert 1 galaxy (Ward et al. 1978). We analyzed a datacube on this object obtained with the GMOS-IFU on the Gemini-South telescope. After a subtraction of the stellar component using the starlight code (Cid Fernandes et al. 2005), we looked for optical signatures of the AGN. We detected a broad Hα component (Figure 1) in the source where Bianchi et al. (2007) identified the AGN in an HST optical image. We also found a broad Hβ feature (Figure 2), but its emission reveals a extended source. We suggest that it is the light of the AGN scattered in the ionization cone. We propose that NGC 7582 is a Seyfert 1 galaxy. A number of other “hot-spots” and Wolf–Rayet features were also identified.

Type
Contributed Papers
Copyright
Copyright © International Astronomical Union 2010

References

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