Works matching DE "SEYFERT galaxies"

Results: 365

Obscured Activity: AGN, Quasars, Starbursts and ULIGs Observed by the Infrared Space Observatory.

Published in:

Space Science Reviews, 2005, v. 119, n. 1-4, p. 355, doi. 10.1007/s11214-005-8072-z

By:

Verma, Aprajita;
Charmandaris, Vassilis;
Klaas, Ulrich;
Lutz, Dieter;
Haas, Martin

Publication type:

Article

Infrared Seyferts: a new population of active galaxies?

Published in:

Nature, 1985, p. 240, doi. 10.1038/314240a0

By:

de Grijp, M. H. K.;
Miley, G. K.;
Lub, J.;
de Jong, T.

Publication type:

Article

Classification of Flat Spectrum Radio Quasars by Optical Activity Types.

Published in:

Astrophysics, 2024, v. 67, n. 1, p. 1, doi. 10.1007/s10511-024-09811-8

By:

Mickaelian, A. M.;
Abrahamyan, H. V.;
Paronyan, G. M.;
Mikayelyan, G. A.;
Sukiasyan, A. G.;
Mkrtchyan, V. K.

Publication type:

Article

On the Unified Scheme of γ-Ray Emitting Jetted Active Galactic Nuclei.

Published in:

Astrophysics, 2023, v. 66, n. 2, p. 159, doi. 10.1007/s10511-023-09779-x

By:

Audu, A. I.;
Odo, F. C.;
Iyida, E. U.;
Okike, O.;
Ubachukwu, A. A.

Publication type:

Article

Results of Spectral Observations of 15 Seyfert Galaxies.

Published in:

Astrophysics, 2022, v. 65, n. 4, p. 447, doi. 10.1007/s10511-023-09753-7

By:

Denissyuk, E. K.;
Valiullin, R. R.;
Shomoshekova, S. A.;
Kondratyeva, L. N.;
Reva, I. V.;
Aimanova, G. A.;
Krugov, M. A.

Publication type:

Article

Gaseous Components of the Seyfert Galaxy NGC 1275 Nucleus In The Epoch 2012.

Published in:

Astrophysics, 2019, v. 62, n. 4, p. 439, doi. 10.1007/s10511-019-09594-3

By:

Sharipova, L. M.

Publication type:

Article

Spectral Classification of Ultrabright IR Galaxies from The IRAS PSC/FSC Combined Catalog.

Published in:

Astrophysics, 2019, v. 62, n. 4, p. 452, doi. 10.1007/s10511-019-09595-2

By:

Mikayelyan, G. A.;
Mickaelian, A. M.;
Abrahamyan, H. V.;
Paronyan, G. M.;
Gyulzadyan, M. V.

Publication type:

Article

X-Ray Warm Absorber Variability of the Seyfert Galaxy Arakelian 564.

Published in:

Astrophysics, 2019, v. 62, n. 3, p. 300, doi. 10.1007/s10511-019-09583-6

By:

Korany, B.;
Nouh, M. I.

Publication type:

Article

Photometric Studies of the Seyfert Galaxies NGC 3516, NGC 5548, NGC 3227, NGC 4051, NGC 4151, and NGC 7469.

Published in:

Astrophysics, 2019, v. 62, n. 2, p. 163, doi. 10.1007/s10511-019-09571-w

By:

Shomshekova, S. A.;
Denissyuk, E. K.;
Valiullin, R. R.;
Reva, I. V.;
Kusakin, A. V.

Publication type:

Article

The Emission Spectrum Characteristics of the Seyfert Galaxy NGC7469 Nucleus Over Time of Decades.

Published in:

Astrophysics, 2018, v. 61, n. 3, p. 289, doi. 10.1007/s10511-018-9536-7

By:

Sharipova, L. M.

Publication type:

Article

Spectral Characteristics of Radiation from the Nucleus of the Seyfert Galaxy NGC 1275 After an Epoch of its Maximum Activity.

Published in:

Astrophysics, 2016, v. 59, n. 1, p. 48, doi. 10.1007/s10511-016-9415-z

By:

Bikmaev, I.;
Sharipova, L.;
Galeev, A.;
Akhmetkhanova, A.

Publication type:

Article

Morphology and Evolutionary Status of Narrow Line Seyfert (NLS) Active Galaxies.

Published in:

Astrophysics, 2013, v. 56, n. 4, p. 569, doi. 10.1007/s10511-013-9309-2

By:

Ermash, A. A.;
Komberg, B. V.

Publication type:

Article

SPECTRAL AND PHOTOMETRIC STUDIES OF MRK6 AND MRK1040 IN THE OPTICAL RANGE.

Published in:

Eurasian Physical Technical Journal, 2025, v. 22, n. 1, p. 115, doi. 10.31489/2025N1/115-126

By:

S. A., Shomshekova;
E. K., Denissyuk;
L. N., Kondratyeva;
A. V., Serebryanskiy;
G. K., Aimanova;
L., Aktay

Publication type:

Article

Cosmological Constraints on a Temporal Variation of the Proton-to-electron Mass Ratio based on the Red-shifted Lines of Extragalactic Argonium.

Published in:

Astronomy Reports, 2021, v. 65, n. 12, p. 1211, doi. 10.1134/S1063772921120076

By:

Terashkevich, V. A.;
Pazyuk, E. A.;
Stolyarov, A. V.;
Wiebe, D. S.

Publication type:

Article

Changing Looks of the Nucleus of Seyfert Galaxy NGC 3516 during 2016–2020.

Published in:

Astronomy Reports, 2020, v. 64, n. 12, p. 979, doi. 10.1134/S1063772920120082

By:

Oknyansky, V. L.;
Mikailov, Kh. M.;
Huseynov, N. A.

Publication type:

Article

Narrow-Line SY1 NGC 4748 in X-Rays: Detailed Case-Study.

Published in:

Astronomy Reports, 2020, v. 64, n. 5, p. 384, doi. 10.1134/S1063772920050042

By:

Vasylenko, A.;
Fedorova, E.;
Del Popolo, A.

Publication type:

Article

Morphology of Seyfert Galaxies.

Published in:

Astronomy Reports, 2018, v. 62, n. 12, p. 853, doi. 10.1134/S1063772918120181

By:

Chen, Y.-C.;
Hwang, C.-Y.

Publication type:

Article

The mass of the central body of the galaxy Ark 120 and the orbits of objects in its gravitational field.

Published in:

Astronomy Reports, 2015, v. 59, n. 2, p. 123, doi. 10.1134/S106377291412004X

By:

Denissyuk, E.;
Valiullin, R.;
Gaisina, V.

Publication type:

Article

Narrow-line Seyfert 1 galaxies. Relationship between their frequency of occurrence and the large-scale structure of the universe.

Published in:

Astronomy Reports, 2014, v. 58, n. 4, p. 205, doi. 10.1134/S1063772914040052

By:

Ermash, A.

Publication type:

Article

AGN III-primordial activity in the nuclei of disk galaxies with pseudobulges.

Published in:

Astronomy Reports, 2013, v. 57, n. 6, p. 401, doi. 10.1134/S1063772913060036

By:

Komberg, B.;
Ermash, A.

Publication type:

Article

The luminosity function of narrow-line Seyfert 1 galaxies based on SDSS data (DR7).

Published in:

Astronomy Reports, 2013, v. 57, n. 5, p. 317, doi. 10.1134/S106377291305003X

By:

Ermash, A.

Publication type:

Article

Activity of the Seyfert galaxy NGC 4151 in the near-IR in 1994-2011.

Published in:

Astronomy Reports, 2013, v. 57, n. 2, p. 71, doi. 10.1134/S1063772913010071

By:

Taranova, O.;
Shenavrin, V.

Publication type:

Article

The motion of an emission-line region near the center of the galaxy NGC 4151.

Published in:

Astronomy Reports, 2011, v. 55, n. 9, p. 761, doi. 10.1134/S1063772911090034

By:

Denissyuk, E.;
Valiullin, R.;
Gaisina, V.

Publication type:

Article

The Seyfert 1 galaxy Ark 120 in 1996–2005. Temporal characteristics of the optical variability.

Published in:

Astronomy Reports, 2008, v. 52, n. 9, p. 693, doi. 10.1134/S1063772908090011

By:

Doroshenko, V. T.;
Sergeev, S. G.;
Pronik, V. I

Publication type:

Article

The Seyfert 1 galaxy Ark 120. Spectral variability in 1992–2005.

Published in:

Astronomy Reports, 2008, v. 52, n. 6, p. 442, doi. 10.1134/S1063772908060024

By:

Doroshenko, V. T.;
Sergeev, S. G.;
Pronik, V. I.

Publication type:

Article

Behavior of the Broad Hα Component in the Seyfert Galaxy NGC 4151 in 1976–2003.

Published in:

Astronomy Reports, 2004, v. 48, n. 8, p. 622, doi. 10.1134/1.1787064

By:

Denisyuk, É. K.;
Valiullin, R. R.;
Argyle, R. W.;
Gaisina, V. N.

Publication type:

Article

X-ray and γ-ray emissions from NLSy1 galaxies.

Published in:

International Journal of Modern Physics D: Gravitation, Astrophysics & Cosmology, 2018, v. 27, n. 10, p. N.PAG, doi. 10.1142/S0218271818440017

By:

Baghmanyan, V.;
Sahakyan, N.

Publication type:

Article

Determination of the Ionizing Continuum in Seyfert Galaxies from Near Infrared Spectroscopy.

Published in:

Revista Colombiana de Física, 2009, v. 41, n. 2, p. 412

By:

Portilla, J. G.;
Rodríguez-Ardila, A.;
Tejeiro, J. M.

Publication type:

Article

NEAR INFRARED (0.8-2.3 µm) CORONAL LINES IN SEYFERT 1 AND SEYFERT 2 GALAXIES.

Published in:

Revista Colombiana de Física, 2006, v. 38, n. 2, p. 1046

By:

Portilla, J. G.;
Tejeiro, J. M.;
Rodríguez-Ardila, A.

Publication type:

Article

DETERMINACIÓN DE LA DENSIDAD Y TEMPERATURA ELECTRÓNICA DE LA NLR PARA UN GRUPO DE GALAXIAS SEYFERT.

Published in:

Revista Colombiana de Física, 2006, v. 38, n. 2, p. 1022

By:

Daza, Carolina;
Martinez, Carmen;
Escobar, Jhon;
Portilla, Gregorio

Publication type:

Article

Study of the nuclear activity of the Seyfert galaxy NGC 7469 over the period of observations 2008-2014.

Published in:

Astronomy Letters, 2017, v. 43, n. 4, p. 233, doi. 10.1134/S1063773717040089

By:

Ugol'kova, L.;
Artamonov, B.;
Shimanovskaya, E.;
Bruevich, V.;
Burkhonov, O.;
Egamberdiev, Sh.;
Metlova, N.

Publication type:

Article

Correlation of near-infrared and optical variability of NGC 4151 in 2008-2013.

Published in:

Astronomy Letters, 2014, v. 40, n. 9, p. 527, doi. 10.1134/S1063773714090011

By:

Oknyansky, V.;
Metlova, N.;
Taranova, O.;
Shenavrin, V.;
Artamonov, B.;
Gaskell, C.

Publication type:

Article

Emission from the galaxy NGC 1275 at high and very high energies and its origin.

Published in:

Astronomy Letters, 2014, v. 40, n. 2/3, p. 75, doi. 10.1134/S1063773714030074

By:

Sinitsyna, V.

Publication type:

Article

X-ray and optical variability of the seyfert galaxy NGC 7469.

Published in:

Astronomy Letters, 2010, v. 36, n. 9, p. 611, doi. 10.1134/S106377371009001X

By:

Doroshenko, V. T.;
Sergeev, S. G.;
Vovk, E. Yu.;
Efimov, Yu. S.;
Klimanov, S. A.;
Nazarov, S. V.

Publication type:

Article

Optical identification of the hard X-ray source IGR J18257-0707.

Published in:

Astronomy Letters, 2009, v. 35, n. 2, p. 71, doi. 10.1134/S1063773709020017

By:

Burenin, R. A.;
Bikmaev, I. F.;
Revnivtsev, M. G.;
Tomsick, J. A.;
Sazonov, S. Yu.;
Pavlinsky, M. N.;
Sunyaev, R. A.

Publication type:

Article

Ultrahigh Energy Cosmic Ray Acceleration in Seyfert Galactic Nuclei.

Published in:

Astronomy Letters, 2001, v. 27, n. 12, p. 775, doi. 10.1134/1.1424359

By:

Uryson, A. V.

Publication type:

Article

Nuclear Activity of NGC 5548 from UBVRI Observations during 1990–2000.

Published in:

Astronomy Letters, 2001, v. 27, n. 11, p. 691, doi. 10.1134/1.1415858

By:

Doroshenko, V. T.;
Lyuty, V. M.;
Bochkarev, N. G.;
Merkulova, N. I.;
Sergeev, S. G.;
Vlasyuk, V. V.;
Mikhailov, V. P.;
Spiridonova, O. I.;
Ezhkova, O. V.;
Grankin, K. N.;
Mel′nikov, S. Yu.

Publication type:

Article

Studying the Correlation between Supermassive Black Holes and Star Formation Rate for Samples of Seyfert Galaxies (Type 1 and 2).

Published in:

Iraqi Journal of Physics, 2021, v. 19, n. 48, p. 52, doi. 10.30723/ijp.v19i48.641

By:

Kareem, Salwa Haithem;
Rashed, Y. E.

Publication type:

Article

AGN Feedback Signatures in UV Emission.

Published in:

Galaxies (2075-4434), 2024, v. 12, n. 2, p. 15, doi. 10.3390/galaxies12020015

By:

Rubinur, K.

Publication type:

Article

Superluminal Motion and Jet Parameters in the Gamma-ray-Emitting Narrow-Line Seyfert 1 Galaxy TXS 1206+549.

Published in:

Galaxies (2075-4434), 2024, v. 12, n. 1, p. 8, doi. 10.3390/galaxies12010008

By:

Kozák, Bettina;
Frey, Sándor;
Gabányi, Krisztina Éva

Publication type:

Article

Ionizing Spotlight of Active Galactic Nucleus.

Published in:

Galaxies (2075-4434), 2023, v. 11, n. 6, p. 118, doi. 10.3390/galaxies11060118

By:

Moiseev, Alexei V.;
Smirnova, Aleksandrina A.

Publication type:

Article

A Walk through AGN Country—For the Somewhat Initiated!

Published in:

Galaxies (2075-4434), 2023, v. 11, n. 5, p. 102, doi. 10.3390/galaxies11050102

By:

Antonucci, Robert R. J.

Publication type:

Article

Metal Content in Relativistically Jetted and Radio-Quiet Quasars in the Main Sequence Context.

Published in:

Galaxies (2075-4434), 2023, v. 11, n. 2, p. 52, doi. 10.3390/galaxies11020052

By:

Marziani, Paola;
Panda, Swayamtrupta;
Deconto Machado, Alice;
Del Olmo, Ascension

Publication type:

Article

Looking for Signatures of AGN Feedback in Radio-Quiet AGN.

Published in:

Galaxies (2075-4434), 2023, v. 11, n. 1, p. 27, doi. 10.3390/galaxies11010027

By:

Kharb, Preeti;
Silpa, Sasikumar

Publication type:

Article

Assessing the Potential for Liquid Solvents from X-ray Sources: Considerations on Bodies Orbiting Active Galactic Nuclei.

Published in:

Galaxies (2075-4434), 2022, v. 10, n. 5, p. N.PAG, doi. 10.3390/galaxies10050101

By:

Rodener, Daniel;
Schäfer, Myriam;
Hausmann, Michael;
Hildenbrand, Georg

Publication type:

Article

Isolating an Outflow Component in Single-Epoch Spectra of Quasars.

Published in:

Galaxies (2075-4434), 2022, v. 10, n. 2, p. 54, doi. 10.3390/galaxies10020054

By:

Marziani, Paola;
Deconto-Machado, Alice;
Del Olmo, Ascension

Publication type:

Article

Changing Accretion Geometry of Seyfert 1 Mrk 335 with NuSTAR : A Comparative Study.

Published in:

Galaxies (2075-4434), 2021, v. 9, n. 2, p. 21, doi. 10.3390/galaxies9020021

By:

Mondal, Santanu;
Stalin, C. S.

Publication type:

Article

A Relativistic Orbit Model for Temporal Properties of AGN.

Published in:

Galaxies (2075-4434), 2020, v. 8, n. 3, p. 67, doi. 10.3390/galaxies8030067

By:

Rana, Prerna;
Mangalam, A.

Publication type:

Article

Relativistic Jets from AGN Viewed at Highest Angular Resolution.

Published in:

Galaxies (2075-4434), 2020, v. 8, n. 1, p. 1, doi. 10.3390/galaxies8010001

By:

Hada, Kazuhiro

Publication type:

Article

Relativistic Jets in Gamma-Ray-Emitting Narrow-Line Seyfert 1 Galaxies.

Published in:

Galaxies (2075-4434), 2019, v. 7, n. 4, p. 87, doi. 10.3390/galaxies7040087

By:

D'Ammando, Filippo

Publication type:

Article