Results 51 to 60 of about 6,087 (169)

Observations of a Magellanic Corona. [PDF]

open access: yesNature, 2022
Krishnarao D   +8 more
europepmc   +1 more source

New bright Seyfert Galaxies

open access: yesThe Astronomical Journal, 1982
As part of an ongoing program of measuring galaxy redshifts at Mount Hopkins observatory, we have discovered several previously unknown bright Seyfert galaxies. Most of the objects are of Seyfert type 2, but several are type 1 objects where the broad permitted line region is easily visible only for the H..cap alpha.. line.
M. Davis, W. F. Wyatt, J. P. Huchra
openaire   +2 more sources

The radio properties of bright Seyfert galaxies

open access: yesThe Astrophysical Journal Supplement Series, 1990
The radio properties of a sample of 69 bright spectroscopically selected Seyfert galaxies, which suffers from little bias toward Markarian galaxies with strong UV excess. At variance with most of the earlier results, generally based on galaxy samples which are strongly biased toward the inclusion of Markarian objects, there is no clear evidence of a ...
GIURICIN G   +3 more
openaire   +3 more sources

The extent of ionization in simulations of radio-loud AGNs impacting kpc gas discs. [PDF]

open access: yesMon Not R Astron Soc, 2022
Meenakshi M   +6 more
europepmc   +1 more source

Optical polarization of Seyfert galaxies

open access: yesThe Astrophysical Journal, 1988
Des mesures de la polarisation du continuum optique d'un echantillon de 19 galaxies de Seyfert ont ete effectuees. Elles sont accompagnees pour 9 d'entre-elles d'observations polarimetriques de la raie d'emission Hα.
Ian B. Thompson, Peter G. Martin
openaire   +2 more sources

Seyfert galaxies as X-ray sources [PDF]

open access: bronze, 1978
M. Elvis   +6 more
openalex   +1 more source

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