Results 121 to 130 of about 6,380 (236)
NGC 3147: a ‘true’ type 2 Seyfert galaxy without the broad-line region [PDF]
, 2008 S. Bianchi +7 more
openalex +1 more source
Cold molecular gas and PAH emission in the nuclear and circumnuclear regions of Seyfert galaxies [PDF]
, 2020 A. Alonso‐Herrero +17 more
openalex +1 more source
Spectra of Seyfert galaxies and Seyfert galaxy candidates
The Astrophysical Journal, 1983 D. E. Osterbrock, O. Dahari
openaire +1 more source
On the reality of broad iron L lines from the narrow line Seyfert 1\n galaxies 1H0707-495 and IRAS 13224-3809 [PDF]
, 2016 Pramod Pawar +4 more
openalex +1 more source
X-ray Properties of Two Complementary Samples of Intermediate Seyfert Galaxies
UniverseWe present the X-ray spectral analysis of two complementary sets of intermediate Seyfert galaxies (ISs). Analyzing X-ray data, we estimate the hydrogen abundance NH and test its connection with the [O III] luminosity acquired from optical observations ...
Benedetta Dalla Barba +4 more
doaj +1 more source
J-HERTz: J-PLUS Heritage Exploration of Radio Targets at z < 5
The Astrophysical Journal Supplement SeriesWe introduce J-HERTz (J-PLUS Heritage Exploration of Radio Targets at z < 5), a new multiwavelength catalog that combines optical narrowband photometry from J-PLUS, infrared observations from the Wide-field Infrared Survey Explorer, and deep low ...
D. Fernández Gil +19 more
doaj +1 more source
A Simple New Method for Analyzing Gapped Time Series: Search for a High-frequency Cutoff in the X-Ray Power Spectrum of the Seyfert Galaxy MCG −6−30−15 [PDF]
, 1997 T. Yaqoob +4 more
openalex +1 more source
Hydrocarbon dust absorption in Seyfert galaxies and ULIRGs [PDF]
, 2004 Rachel Mason +3 more
openalex +1 more source