Results 111 to 120 of about 160 (135)

More Bars in Seyfert than in non-Seyfert Galaxies

2001
We use isophote analysis performed on near-infrared images of matched samples of Seyfert and non-active galaxies to study the overall bar fractions, and properties of the bars. We conclude that there is a small but significant excess of bars among the host galaxies of Seyferts as compared to non-Seyfert control galaxies.
Johan H. Knapen, Isaac Shlosman, Reinier F. Peletier, Seppo Laine   +3 more
openaire   +1 more source

Seyfert Galaxies

Annual Review of Astronomy and Astrophysics, 1977
openaire   +1 more source

Seyfert Galaxies

Scientific American, 1969
openaire   +1 more source

Narrow-Line Seyfert 1s: 15 Years Later

New Astronomy Reviews, 2000
Richard W. Pogge
exaly  

Near-Infrared Spectroscopy of Nearby Seyfert Galaxies - I. First Results

Monthly Notices of the Royal Astronomical Society, 2002
J K Kotilainen, J Reunanen, M A Prieto
exaly  

Seyfert Galaxies

2004
openaire   +1 more source

Torus Model Properties of an Ultra-Hard X-Ray Selected Sample of Seyfert Galaxies

Monthly Notices of the Royal Astronomical Society, 2019
Claudio Ricci, Cristina Ramos Almeida, Jose A. Acosta-Pulido   +2 more
exaly  

Seyfert 1 星系黑洞质量与辐射压的研究

Wuli Xuebao/Acta Physica Sinica, 2012
Ding-Rong Xiong, Yong-Gang Zheng, Zhang Xiong   +2 more
exaly  

A Comprehensive Analysis of the Hard X-Ray Spectra of Bright Seyfert Galaxies

Monthly Notices of the Royal Astronomical Society, 2016
Claudio Ricci, Andrzej Zdziarski, Stéphane Paltani   +2 more
exaly  

The Star Formation History of Seyfert 2 Nuclei

Monthly Notices of the Royal Astronomical Society, 2004
Roberto Terlevich, Elena Terlevich, Jorge Melnick   +2 more
exaly