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Journal article

Stellar populations in the nuclear regions of nearby radio galaxies

Abstract:

We present optical spectra of the nuclei of seven luminous (P178MHz ≳ 1025 W Hz-1 Sr-1 ) nearby (z < 0.08) radio galaxies, which mostly correspond to the FR II class. In two cases, Hydra A and 3C 285, the Balmer and λ4000-Å break indices constrain the spectral types and luminosity classes of the stars involved, revealing that the blue spectra are dominated by blue supergiant and/or giant stars. The ages derived for the last burst of star formation in Hydra A are between 7 and 40Myr, and in...

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Publication status:
Published

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Institution:
University of Oxford
Department:
Oxford, MPLS, Physics, Astrophysics
Role:
Author
Journal:
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
Volume:
325
Issue:
2
Pages:
636-648
Publication date:
2001-08-01
DOI:
EISSN:
1365-2966
ISSN:
0035-8711
URN:
uuid:286d8cec-1b67-48ad-89e4-94ea2364b663
Source identifiers:
163389
Local pid:
pubs:163389

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