Results 101 to 110 of about 6,087 (169)

Erratum: on the Interpretation of the Hα Profile of the Seyfert Galaxy NGC 5548.

, 1972
Kurt S. Anderson
openalex   +1 more source

Spectroscopic changes in the Seyfert galaxy NGC 3783 [PDF]

, 1983
J. W. Menzies, M. W. Feast
openalex   +1 more source

When the Milky Way hosted a quasar

, 2022
Marin F, Churazov E, Khabibullin I, Ferrazzoli R, Gesu LD, Barnouin T, Marco AD, Middei R, Vikhlinin A, Costa E, Soffitta P, Muleri F, Sunyaev R, Forman W, Kraft R, Bianchi S, Donnarumma I, Petrucci P, Enoto T, Agudo I, Antonelli L, Bachetti M, Baldini L, Baumgartner W, Bellazzini R, Bongiorno S, Bonino R, Brez A, Bucciantini N, Capitanio F, Castellano S, Cavazzuti E, Chen C, Ciprini S, De Rosa A, Monte ED, Lalla ND, Doroshenko V, Dovciak M, Ehlert S, Evangelista Y, Fabiani S, Garcia J, Gunji S, Hayashida K, Heyl J, Ingram A, Iwakiri W, Jorstad S, Kaaret P, Karas V, Kitaguchi T, Kolodziejczak J, Krawczynski H, Monaca FL, Latronico L, Liodakis I, Maldera S, Manfreda A, Marinucci A, Marscher A, Marshall H, Massaro F, Matt G, Mitsuishi I, Mizuno T, Negro M, Ng C, O'Dell S, Omodei N, Oppedisano C, Papitto A, Pavlov G, Peirson A, Perri M, Pesce-Rollins M, Pilia M, Possenti A, Poutanen J, Puccetti S, Ramsey B, Rankin J, Ratheesh A, Roberts O, Romani R, Sgro C, Slane P, Spandre G, Swartz D, Tamagawa T, Tavecchio F, Taverna R, Tawara Y, Tennant A, Thomas N, Tombesi F, Trois A, Tsygankov S, Turolla R, Vink J, Weisskopf M, Wu K, Xie F, Zane S.   +103 more
europepmc   +1 more source

A massive, dead disk galaxy in the early Universe. [PDF]

Nature, 2017
Toft S, Zabl J, Richard J, Gallazzi A, Zibetti S, Prescott M, Grillo C, Man AWS, Lee NY, Gómez-Guijarro C, Stockmann M, Magdis G, Steinhardt CL.   +12 more
europepmc   +1 more source

The structure of the forbidden [O III] nuclear region in the Seyfert 2 galaxy F-427 (ESO 263-G13) [PDF]

, 1985
A. P. Fairall, J. Meaburn
openalex   +1 more source

Extragalactic background light measurements and applications. [PDF]

R Soc Open Sci, 2016
Cooray A.
europepmc   +1 more source

A millimeter-wave survey of CO emission in Seyfert galaxies

, 1989
Timothy M. Heckman, Leo Blitz, A. S. Wilson, L. Armus, G. K. Miley   +4 more
openalex   +2 more sources

Search for redshifted CH2O, H2O, O2, and NH3 in Seyfert galaxies and quasars [PDF]

, 1982
Demetrios Matsakis, J. M. Bologna, P. R. Schwartz, D. L. Thacker   +3 more
openalex   +1 more source

A survey of northern Seyfert galaxies [PDF]

, 1988
S. J. Wagner
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