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Träfflista för sökning "WFRF:(MASEGOSA J) srt2:(1995-1999)"

Sökning: WFRF:(MASEGOSA J) > (1995-1999)

  • Resultat 1-7 av 7
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1.
  • Erkens, U., et al. (författare)
  • Monitoring of active galactic nuclei. VI. The quasar Mrk 876
  • 1995
  • Ingår i: Astronomy and Astrophysics. - 0004-6361 .- 1432-0746. ; 296:1, s. 90-9898
  • Tidskriftsartikel (refereegranskat)abstract
    • For pt. V see ibid., vol. 285, no. 3, p. 857-67 (1994). We present the results of a 6 month monitoring campaign of Mrk 876, a low luminosity quasar with M absap-24. High resolution spectroscopy and direct imaging in the Johnson filters B, V, R, I was carried out in the first half of 1990. Line and continuum light curves are presented. Mrk 876 showed a decrease of 17% in the continuum over the whole observing period whereas the line flux of Hbeta and Halpha stayed constant. This implies, that the radius of the broad line region is larger than 6 light months. Coadded spectra of Hbeta and Halpha are presented which confirm an extreme asymmetry of the line profiles to the red. With respect to much earlier spectra the line profiles changed considerably
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2.
  • Bergvall, N, et al. (författare)
  • Optical/near-IR surface photometry of blue low surface brightness galaxies
  • 1999
  • Ingår i: ASTRONOMY AND ASTROPHYSICS. - : SPRINGER VERLAG. - 0004-6361. ; 341:3, s. 697-708
  • Tidskriftsartikel (refereegranskat)abstract
    • We present luminosity profiles, colour profiles and disk parameters based on near-infrared JHK surface photometry of a sample of blue low surface brightness galaxies (BLSBGs). The results are discussed along with previously obtained optical data. We find
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3.
  • ERKENS, U, et al. (författare)
  • MONITORING OF ACTIVE GALACTIC NUCLEI .6. THE QUASAR MKN-876
  • 1995
  • Ingår i: ASTRONOMY AND ASTROPHYSICS. - : SPRINGER VERLAG. - 0004-6361. ; 296:1, s. 90-98
  • Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
    • We present the results of a 6 month monitoring campaign of Mkn 876, a low luminosity quasar with M(abs) approximate to -24. High resolution spectroscopy and direct imaging in the Johnson filters B, V, R, I was carried out in the first half of 1990. Line a
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6.
  • Bergvall, N, et al. (författare)
  • Starburst dwarfs - Fueling and morphological evolution
  • 1999
  • Ingår i: ASTROPHYSICS AND SPACE SCIENCE. - : KLUWER ACADEMIC PUBL. - 0004-640X. ; 269, s. 625-628
  • Tidskriftsartikel (refereegranskat)abstract
    • The effects of mergers in low mass galaxies are poorly understood. In this paper we analyze different observational evidences which support the view that mergers can trigger starbursts in dwarf galaxies. We discuss the relationships between blue compact g
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  • Resultat 1-7 av 7

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