Results 171 to 180 of about 6,380 (236)

Sub-arcsecond imaging of the water emission in Arp 220. [PDF]

Astron Astrophys, 2017
König S, Martín S, Muller S, Cernicharo J, Sakamoto K, Zschaechner LK, Humphreys EML, Mroczkowski T, Krips M, Galametz M, Aalto S, Vlemmings WHT, Ott J, Meier DS, Fuente A, García-Burillo S, Neri R.   +16 more
europepmc   +1 more source

A Robust Test of the Unified Model for Seyfert Galaxies with Implications for the Starburst Phenomenon

, 1997
Kimberly A. Weaver
openalex   +1 more source

X-ray and optical variability of Seyfert 1 galaxies as observed with XMM-Newton [PDF]

, 2007
R. Smith, S. Vaughan
openalex   +1 more source

Maximum Entropy (Most Likely) Double Helical and Double Logarithmic Spiral Trajectories in Space-Time. [PDF]

Sci Rep, 2019
Parker MC, Jeynes C.
europepmc   +1 more source

On the relative number of Seyfert 1 and Seyfert 2 galaxies and the opening angle of dust torus [PDF]

, 2001
H.M. Tovmassian
openalex   +1 more source

Supermassive black-hole growth over cosmic time: active galaxy demography, physics, and ecology from Chandra surveys. [PDF]

Proc Natl Acad Sci U S A, 2010
Brandt WN, Alexander DM.
europepmc   +1 more source

PARSEC-SCALE IMAGING OF THE RADIO-BUBBLE SEYFERT GALAXY NGC 6764 [PDF]

, 2010
P. Kharb, Ananda Hota, J. H. Croston, M. J. Hardcastle, C. P. O'Dea, R. P. Kraft, D. J. Axon, A. Robinson   +7 more
openalex   +1 more source

Relativistic dynamics and extreme mass ratio inspirals. [PDF]

Living Rev Relativ, 2018
Amaro-Seoane P.
europepmc   +1 more source

Compton reflection and iron fluorescence in BeppoSAX observations of Seyfert type 1 galaxies [PDF]

, 2002
G. C. Perola, G. Matt, M. Cappi, F. Fiore, M. Guainazzi, L. Maraschi, P. O. Petrucci, L. Piro   +7 more
openalex   +1 more source

Active galactic nuclei. [PDF]

Proc Natl Acad Sci U S A, 1999
Fabian AC.
europepmc   +1 more source