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A powerful nuclear starburst in the Seyfert galaxy Markarian 477: implications for the starburst-active galactic nucleus connection

Publication ,  Journal Article
Heckman, TM; Gonzalez Delgado, R; Leitherer, C; Meurer, GR; Krolik, J; Wilson, AS; Koratkar, A; Kinney, A
Published in: Astrophys. J. (USA)
1997

There have been many suggestions that starbursts may play an important rôle in Seyfert galaxies. Analyses of the UV, optical, and near-IR “featureless continuum” (FC) in type 2 Seyfert nuclei have provided indirect evidence that-the FC may be produced by a compact starburst. And that this starburst may provide a power source for the pronounced far-IR excess in type 2 Seyfert galaxies. The authors present and discuss Hubble Space Telescope (HST) images and a UV spectrum plus new ground-based near-UV through near-IR spectra of Mrk 477 (=I Zw 92). This object is arguably the most powerful type 2 Seyfert nucleus in the local universe and thus offers a unique opportunity for detailed investigation of the nature of the FC. The data provide direct evidence that the observed UV through near-IR continuum in the nucleus of Mrk 477 is dominated by light from a dusty starburst. An HST image of the space-UV continuum shows that it arises in a compact (few hundred parsec) region, much smaller than the sizes of previously studied circumnuclear starbursts in Seyfert galaxies

Duke Scholars

Published In

Astrophys. J. (USA)

DOI

Publication Date

1997

Volume

482

Issue

1

Start / End Page

114 / 132

Related Subject Headings

  • Astronomy & Astrophysics
  • 5109 Space sciences
  • 5107 Particle and high energy physics
  • 5101 Astronomical sciences
  • 0306 Physical Chemistry (incl. Structural)
  • 0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics
  • 0201 Astronomical and Space Sciences
 

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Heckman, T. M., Gonzalez Delgado, R., Leitherer, C., Meurer, G. R., Krolik, J., Wilson, A. S., … Kinney, A. (1997). A powerful nuclear starburst in the Seyfert galaxy Markarian 477: implications for the starburst-active galactic nucleus connection. Astrophys. J. (USA), 482(1), 114–132. https://doi.org/10.1086/304139
Heckman, T. M., R. Gonzalez Delgado, C. Leitherer, G. R. Meurer, J. Krolik, A. S. Wilson, A. Koratkar, and A. Kinney. “A powerful nuclear starburst in the Seyfert galaxy Markarian 477: implications for the starburst-active galactic nucleus connection.” Astrophys. J. (USA) 482, no. 1 (1997): 114–32. https://doi.org/10.1086/304139.
Heckman TM, Gonzalez Delgado R, Leitherer C, Meurer GR, Krolik J, Wilson AS, et al. A powerful nuclear starburst in the Seyfert galaxy Markarian 477: implications for the starburst-active galactic nucleus connection. Astrophys J (USA). 1997;482(1):114–32.
Heckman, T. M., et al. “A powerful nuclear starburst in the Seyfert galaxy Markarian 477: implications for the starburst-active galactic nucleus connection.” Astrophys. J. (USA), vol. 482, no. 1, 1997, pp. 114–32. Manual, doi:10.1086/304139.
Heckman TM, Gonzalez Delgado R, Leitherer C, Meurer GR, Krolik J, Wilson AS, Koratkar A, Kinney A. A powerful nuclear starburst in the Seyfert galaxy Markarian 477: implications for the starburst-active galactic nucleus connection. Astrophys J (USA). 1997;482(1):114–132.

Published In

Astrophys. J. (USA)

DOI

Publication Date

1997

Volume

482

Issue

1

Start / End Page

114 / 132

Related Subject Headings

  • Astronomy & Astrophysics
  • 5109 Space sciences
  • 5107 Particle and high energy physics
  • 5101 Astronomical sciences
  • 0306 Physical Chemistry (incl. Structural)
  • 0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics
  • 0201 Astronomical and Space Sciences