Titre du document

Common Features of the Optical Continua associated with Violent Cosmic Events

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Nom du Corpus

AstroConcepts

Auteur(s)
  • L. SEARLE 1
  • A. W. RODGERS 1
  • W. L. W. SARGENT
  • J. B. OKE 1
Affiliation(s)
  • Mount Stromlo Observatory, Australian National University, Canberra.On leave from the University of California at San Diego. Work supported by the U.S. National Science Foundation.Mount Wilson and Palomar Observatories, Carnegie Institution of Washington, California Institute of Technology.
Résumé

THE purpose of this communication is to point out a similarity in the optical continua of several objects, all associated with violent events, but which otherwise have a diverse character. The objects are the nucleus of the Seyfert Galaxy NGC 4151, the galactic, nova-like object Carinae, the Crab Nebula and the quasi-stellar radio source, 3C748. (The term nova-like is to some extent descriptive of the spectrum. In using it, we do not mean to imply a mechanism for the outburst in Carinae. This outburst has involved energies characteristic of supernovae and, unlike either supernovae or novae, has a time scale of the order of a century.) The optical spectrum of NGC 4151 has been discussed by Seyfert1 and Woltjer2, that of Carinae by Thackeray3, that of the Crab Nebula by Woltjer4 and Mayall5, and that of 3C48 by Greenstein and Schmidt6. The emission lines in all of these spectra show, as a common feature, evidence of internal motions as large as a few thousand km/sec. We indicate in Table 1 some of the principal observed features of these objects.

Langue(s) du document
Indéterminé
Année de publication
1965
Revue

Nature

Éditeur
Nature
Type de publication
journal
Type de document
other
Présence de XML structuré
Oui
Version de PDF
1.4
Score de qualité du texte
4.157
Nom du concept
  • Seyfert galaxies
Catégories Science-Metrix
  • 1 - general ; 2 - general science & technology ; 3 - general science & technology
Catégories Inist
  • 1 - sciences appliquees, technologies et medecines ; 2 - sciences exactes et technologie ; 3 - terre, ocean, espace ; 4 - astronomie
Catégories Scopus
  • 1 - General ; 2 - Multidisciplinary ; 3 - Multidisciplinary
Catégories WoS
  • 1 - science ; 2 - multidisciplinary sciences
Identifiant ISTEX
C172733B5D335A4351667474367893136C62F15D
ark:/67375/GT4-XMFBPD49-F
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