Works matching DE "ACTIVE galactic nuclei"

Results: 1251

Optical Photometric Monitoring of the Blazar OT 355 and Local Standard Stars' Calibration.

Published in:

Universe (2218-1997), 2025, v. 11, n. 6, p. 171, doi. 10.3390/universe11060171

By:

Bachev, R.;
Tripathi, Tushar;
Gupta, Alok C.;
Kurtenkov, A.;
Nikolov, Y.;
Strigachev, A.;
Boeva, S.;
Latev, G.;
Spassov, B.;
Minev, M.;
Ovcharov, E.;
Yang, W.-X.;
Liu, Yi;
Fan, J.-H.

Publication type:

Article

Scientific Objectives of the Lunar Millimeter and Submillimeter Observatory.

Published in:

Astronomy Letters, 2024, v. 50, n. 12, p. 830, doi. 10.1134/S1063773725700112

By:

Likhachev, S. F.;
Larchenkova, T. I.;
Andrianov, A. S.;
Vasiliev, E. O.;
Litvinov, D. A.;
Pilipenko, S. V.;
Rudnitskiy, A. G.;
Shchurov, M. A.

Publication type:

Article

Highly Variable Active Galactic Nuclei in the SRG/eROSITA Sky Survey: II. Spectroscopic Identification of Sources with Russian Telescopes.

Published in:

Astronomy Letters, 2024, v. 50, n. 12, p. 744, doi. 10.1134/S1063773725700082

By:

Khorunzhev, G. A.;
Sazonov, S. Yu.;
Medvedev, P. S.;
Gilfanov, M. R.;
Dodin, A. V.;
Moiseev, A. V.;
Zaznobin, I. A.;
Moskaleva, A. V.;
Oparin, D. V.;
Burlak, M. A.;
Vozyakova, O. V.;
Eselevich, M. V.;
Sunyaev, R. A.

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

Superluminal Motion and Jet Parameters in the High-Redshift Blazar J1429+5406.

Published in:

Universe (2218-1997), 2025, v. 11, n. 5, p. 157, doi. 10.3390/universe11050157

By:

Koller, Dávid;
Frey, Sándor

Publication type:

Article

Broad Observational Perspectives Achieved by the Accreting White Dwarf Sciences in the XMM-Newton and Chandra Eras.

Published in:

Universe (2218-1997), 2025, v. 11, n. 4, p. 105, doi. 10.3390/universe11040105

By:

Balman, Şölen;
Orio, Marina;
Luna, Gerardo J. M.

Publication type:

Article

Restrictions on Regularized Fisher and Dilatonic Spacetimes Implied by High-Frequency Quasiperiodic Oscillations Observed in Microquasars and Active Galactic Nuclei.

Published in:

Universe (2218-1997), 2025, v. 11, n. 3, p. 99, doi. 10.3390/universe11030099

By:

Vrba, Jaroslav;
Stuchlík, Zdeněk

Publication type:

Article

High-Redshift Quasars at z ≥ 3—III: Parsec-Scale Jet Properties from Very Long Baseline Interferometry Observations.

Published in:

Universe (2218-1997), 2025, v. 11, n. 3, p. 91, doi. 10.3390/universe11030091

By:

Guo, Shaoguang;
An, Tao;
Liu, Yuanqi;
Liu, Chuanzeng;
Xu, Zhijun;
Sotnikova, Yulia;
Mufakharov, Timur;
Wang, Ailing

Publication type:

Article

Solid Identification of Extragalactic Gamma-Ray Source Using High-Resolution Radio Interferometric Observation.

Published in:

Universe (2218-1997), 2025, v. 11, n. 3, p. 83, doi. 10.3390/universe11030083

By:

Gabányi, Krisztina Éva;
Frey, Sándor;
Perger, Krisztina;
Kun, Emma

Publication type:

Article

Ultra-High-Energy Cosmic Rays from Active Galactic Nuclei Jets: The Role of Supermassive Black Hole Growth and Accretion States.

Published in:

Universe (2218-1997), 2025, v. 11, n. 3, p. 78, doi. 10.3390/universe11030078

By:

Piana, Olmo;
Pu, Hung-Yi

Publication type:

Article

The Effect of Outflow Launching Radial Efficiency of Accretion Disk on the Shape of Emission-Line Profiles.

Published in:

Universe (2218-1997), 2025, v. 11, n. 1, p. 8, doi. 10.3390/universe11010008

By:

Naddaf, Mohammad Hassan

Publication type:

Article

Effects of Thermodynamics on the Concurrent Accretion and Migration of Gas Giants in Protoplanetary Disks.

Published in:

Universe (2218-1997), 2025, v. 11, n. 1, p. 1, doi. 10.3390/universe11010001

By:

Wu, Hening;
Li, Ya-Ping

Publication type:

Article

The Property of the Gaia Celestial Reference Frame 3 (Gaia -CRF3).

Published in:

Universe (2218-1997), 2024, v. 10, n. 12, p. 455, doi. 10.3390/universe10120455

By:

Liu, Guangyi;
Guo, Sufen

Publication type:

Article

On the Viscous Ringed Disk Evolution in the Kerr Black Hole Spacetime.

Published in:

Universe (2218-1997), 2024, v. 10, n. 12, p. 435, doi. 10.3390/universe10120435

By:

Pugliese, Daniela;
Stuchlík, Zdenek;
Karas, Vladimir

Publication type:

Article

Studying Intra-Night Optical Variability of AGNs Using the TESS Survey Data.

Published in:

Universe (2218-1997), 2024, v. 10, n. 12, p. 434, doi. 10.3390/universe10120434

By:

Yang, Yujian;
Ma, Bo;
Chen, Chen

Publication type:

Article

Exploring γ -Ray Flares from High-Redshift Blazar B3 1343+451 at GeV Energies.

Published in:

Universe (2218-1997), 2024, v. 10, n. 11, p. 423, doi. 10.3390/universe10110423

By:

Geng, Xiongfei;
Liu, Yang;
Cao, Gang;
Fan, Jing;
Yang, Xiongbang;
Ding, Nan;
Gao, Minghu;
Yang, Yehui;
Zhang, Zhijie

Publication type:

Article

A Study of the Accretion–Jet Coupling of Black Hole Objects at Different Scales.

Published in:

Universe (2218-1997), 2024, v. 10, n. 8, p. 335, doi. 10.3390/universe10080335

By:

Yang, Zhou;
Long, Qing-Chen;
Yang, Wei-Jia;
Dong, Ai-Jun

Publication type:

Article

Characteristics of Powerful Radio Galaxies.

Published in:

Universe (2218-1997), 2024, v. 10, n. 8, p. 319, doi. 10.3390/universe10080319

By:

Singh, Chandra B.;
Williams, Michael;
Garofalo, David;
Rojas Castillo, Luis;
Taylor, Landon;
Harmon, Eddie

Publication type:

Article

On the Nature of the Radio Calibrator and Gamma-Ray Emitting NLS1 Galaxy 3C 286 and Its Multiwavelength Variability.

Published in:

Universe (2218-1997), 2024, v. 10, n. 7, p. 289, doi. 10.3390/universe10070289

By:

Komossa, S.;
Yao, S.;
Grupe, D.;
Kraus, A.

Publication type:

Article

Prospects for AGN Studies with AXIS: AGN Fueling—Resolving Hot Gas inside Bondi Radius of SMBHs.

Published in:

Universe (2218-1997), 2024, v. 10, n. 7, p. 278, doi. 10.3390/universe10070278

By:

Wong, Ka-Wah;
Russell, Helen R.;
Irwin, Jimmy A.;
Cappelluti, Nico;
Foord, Adi

Publication type:

Article

X-ray Redshifts for Obscured Active Galactic Nuclei with AXIS Deep and Intermediate Surveys.

Published in:

Universe (2218-1997), 2024, v. 10, n. 6, p. 245, doi. 10.3390/universe10060245

By:

Peca, Alessandro;
Cappelluti, Nico;
Marchesi, Stefano;
Hodges-Kluck, Edmund;
Foord, Adi

Publication type:

Article

Editorial to the Special Issue: "Recent Advances in Gamma Ray Astrophysics and Future Perspectives" †.

Published in:

2024

By:

Romano, Patrizia

Publication type:

Editorial

The Power of Relativistic Jets: A Comparative Study.

Published in:

Universe (2218-1997), 2024, v. 10, n. 4, p. 156, doi. 10.3390/universe10040156

By:

Foschini, Luigi;
Dalla Barba, Benedetta;
Tornikoski, Merja;
Andernach, Heinz;
Marziani, Paola;
Marscher, Alan P.;
Jorstad, Svetlana G.;
Järvelä, Emilia;
Antón, Sonia;
Dalla Bontà, Elena

Publication type:

Article

Scientific Highlights of the AGILE Gamma-ray Mission.

Published in:

Universe (2218-1997), 2024, v. 10, n. 4, p. 153, doi. 10.3390/universe10040153

By:

Vercellone, Stefano;
Pittori, Carlotta;
Tavani, Marco

Publication type:

Article

Revisiting a Core–Jet Laboratory at High Redshift: Analysis of the Radio Jet in the Quasar PKS 2215+020 at z = 3.572.

Published in:

Universe (2218-1997), 2024, v. 10, n. 2, p. 97, doi. 10.3390/universe10020097

By:

Frey, Sándor;
Fogasy, Judit;
Perger, Krisztina;
Kulish, Kateryna;
Benke, Petra;
Koller, Dávid;
Gabányi, Krisztina Éva

Publication type:

Article

Highlights of the Magic Florian Goebel Telescopes in the Study of Active Galactic Nuclei.

Published in:

Universe (2218-1997), 2024, v. 10, n. 2, p. 80, doi. 10.3390/universe10020080

By:

Manganaro, Marina;
Dominis Prester, Dijana

Publication type:

Article

VLBI Analysis of a Potential High-Energy Neutrino Emitter Blazar.

Published in:

Universe (2218-1997), 2024, v. 10, n. 2, p. 78, doi. 10.3390/universe10020078

By:

Kőmíves, Janka;
Gabányi, Krisztina Éva;
Frey, Sándor;
Kun, Emma

Publication type:

Article

Changing-Look Narrow-Line Seyfert 1 Galaxies, their Detection with SVOM, and the Case of NGC 1566.

Published in:

Universe (2218-1997), 2024, v. 10, n. 2, p. 61, doi. 10.3390/universe10020061

By:

Xu, D. W.;
Komossa, S.;
Grupe, D.;
Wang, J.;
Xin, L. P.;
Han, X. H.;
Wei, J. Y.;
Bai, J. Y.;
Bon, E.;
Cangemi, F.;
Cordier, B.;
Dennefeld, M.;
Gallo, L. C.;
Kollatschny, W.;
Kong, De-Feng;
Ochmann, M. W.;
Qiu, Y. L.;
Schartel, N.

Publication type:

Article

Covering Factor of the Dust-Driven Broad-Line Region Clouds.

Published in:

Universe (2218-1997), 2024, v. 10, n. 1, p. 29, doi. 10.3390/universe10010029

By:

Naddaf, Mohammad-Hassan;
Czerny, Bożena

Publication type:

Article

Multi-Epoch Optical Spectroscopy Variability of the Changing-Look AGN Mrk 883.

Published in:

Universe (2218-1997), 2024, v. 10, n. 1, p. 21, doi. 10.3390/universe10010021

By:

Benítez, Erika;
Negrete, Castalia Alenka;
Ibarra-Medel, Héctor;
Cruz-González, Irene;
Rodríguez-Espinosa, José Miguel

Publication type:

Article

Spectral Variability Studies in Active Galactic Nuclei: Exploring Continuum and Emission Line Regions in the Age of LSST and JWST.

Published in:

Universe (2218-1997), 2023, v. 9, n. 12, p. 492, doi. 10.3390/universe9120492

By:

Panda, Swayamtrupta;
Marziani, Paola;
Czerny, Bożena;
Rodríguez-Ardila, Alberto;
Pozo Nuñez, Francisco

Publication type:

Article

Why Are Some Radio Galaxies Detected by Fermi , but Others Not?

Published in:

Universe (2218-1997), 2023, v. 9, n. 11, p. 479, doi. 10.3390/universe9110479

By:

Huang, Danyi;
Ye, Xuhong;
Ye, Xiao;
Huang, Xiulin;
Qian, Yanjun;
Li, Ziyan;
Li, Chengfeng;
Liao, Jiru;
Zhang, Hengji;
Pei, Zhiyuan;
Yang, Jianghe;
Fan, Junhui

Publication type:

Article

Gamma-ray Emission and Variability Processes in High-Energy-Peaked BL Lacertae Objects.

Published in:

Universe (2218-1997), 2023, v. 9, n. 7, p. 344, doi. 10.3390/universe9070344

By:

Kapanadze, Bidzina

Publication type:

Article

Deep Learning of Quasar Lightcurves in the LSST Era.

Published in:

Universe (2218-1997), 2023, v. 9, n. 6, p. 287, doi. 10.3390/universe9060287

By:

Kovačević, Andjelka B.;
Ilić, Dragana;
Popović, Luka Č.;
Andrić Mitrović, Nikola;
Nikolić, Mladen;
Pavlović, Marina S.;
Čvorović-Hajdinjak, Iva;
Knežević, Miljan;
Savić, Djordje V.

Publication type:

Article

Estimate of SMBH Spin for Narrow-Line Seyfert 1 Galaxies.

Published in:

Universe (2218-1997), 2023, v. 9, n. 4, p. 175, doi. 10.3390/universe9040175

By:

Piotrovich, Mikhail;
Buliga, Stanislava;
Natsvlishvili, Tinatin

Publication type:

Article

Quiescent and Active Galactic Nuclei as Factories of Merging Compact Objects in the Era of Gravitational Wave Astronomy.

Published in:

Universe (2218-1997), 2023, v. 9, n. 3, p. 138, doi. 10.3390/universe9030138

By:

Arca Sedda, Manuel;
Naoz, Smadar;
Kocsis, Bence

Publication type:

Article

Detection of a Peculiar Drift in the Nuclear Radio Jet of the TeV Blazar Markarian 501.

Published in:

Universe (2218-1997), 2023, v. 9, n. 3, p. 115, doi. 10.3390/universe9030115

By:

Britzen, Silke;
Krishna, Gopal;
Kun, Emma;
Olivares, Héctor;
Pashchenko, Ilya;
Jaron, Frédéric;
González, Josefa Becerra;
Paneque, David

Publication type:

Article

Polarimetric Reverberation Mapping in Medium-Band Filters.

Published in:

Universe (2218-1997), 2023, v. 9, n. 1, p. 52, doi. 10.3390/universe9010052

By:

Shablovinskaya, Elena;
Popović, Luka Č.;
Uklein, Roman;
Malygin, Eugene;
Ilić, Dragana;
Ciroi, Stefano;
Oparin, Dmitry;
Crepaldi, Luca;
Slavcheva-Mihova, Lyuba;
Mihov, Boyko;
Nikolov, Yanko

Publication type:

Article

Study of Intra-Day Flux Distributions of Blazars Using XMM-Newton Satellite.

Published in:

Universe (2218-1997), 2022, v. 8, n. 11, p. 578, doi. 10.3390/universe8110578

By:

Wani, Kiran;
Gaur, Haritma

Publication type:

Article

Exploring the Fundamental Mechanism in Driving Highest-Velocity Ionized Outflows in Radio AGNs.

Published in:

Universe (2218-1997), 2022, v. 8, n. 11, p. 559, doi. 10.3390/universe8110559

By:

Ayubinia, Ashraf;
Xue, Yongquan;
Woo, Jong-Hak;
Le, Huynh Anh Nguyen;
He, Zhicheng;
Miraghaei, Halime;
Lin, Xiaozhi

Publication type:

Article

X-ray Insight into High-Energy Processes in Extreme Galactic Nuclear Environment.

Published in:

Universe (2218-1997), 2022, v. 8, n. 10, p. N.PAG, doi. 10.3390/universe8100515

By:

Wang, Q. Daniel

Publication type:

Article

Blazar Jets as Possible Sources of Ultra-High Energy Photons: A Short Review.

Published in:

Universe (2218-1997), 2022, v. 8, n. 10, p. N.PAG, doi. 10.3390/universe8100513

By:

Bhatta, Gopal

Publication type:

Article

Study of Asymptotic Velocity in the Bondi–Hoyle Accretion Flows in the Domain of Kerr and 4-D Einstein–Gauss–Bonnet Gravities.

Published in:

Universe (2218-1997), 2022, v. 8, n. 9, p. 458, doi. 10.3390/universe8090458

By:

Donmez, Orhan;
Dogan, Fatih;
Sahin, Tuba

Publication type:

Article

The Classification of Blazar Candidates of Uncertain Types.

Published in:

Universe (2218-1997), 2022, v. 8, n. 8, p. 436, doi. 10.3390/universe8080436

By:

Fan, Jun-Hui;
Chen, Ke-Yin;
Xiao, Hu-Bing;
Yang, Wen-Xin;
Liang, Jing-Chao;
Chen, Guo-Hai;
Yang, Jiang-He;
Yuan, Yu-Hai;
Wu, De-Xiang

Publication type:

Article

Determination of the Physical Parameters of AGNs in Seyfert 1 Galaxies LEDA 3095839 and VII Zw 244 Based on Spectropolarimetric Observations.

Published in:

Universe (2218-1997), 2022, v. 8, n. 7, p. N.PAG, doi. 10.3390/universe8070383

By:

Shablovinskaya, Elena;
Piotrovich, Mikhail;
Malygin, Eugene;
Buliga, Stanislava;
Natsvlishvili, Tinatin

Publication type:

Article

Probing Spacetime Foam with Extragalactic Sources of High-Energy Photons.

Published in:

Universe (2218-1997), 2022, v. 8, n. 7, p. N.PAG, doi. 10.3390/universe8070382

By:

Ng, Y. Jack;
Perlman, Eric S.

Publication type:

Article

Overview and Status of the International Celestial Reference Frame as Realized by VLBI.

Published in:

Universe (2218-1997), 2022, v. 8, n. 7, p. N.PAG, doi. 10.3390/universe8070374

By:

de Witt, Aletha;
Charlot, Patrick;
Gordon, David;
Jacobs, Christopher S.

Publication type:

Article

The Past and Future of Mid-Infrared Studies of AGN.

Published in:

Universe (2218-1997), 2022, v. 8, n. 7, p. N.PAG, doi. 10.3390/universe8070356

By:

Sajina, Anna;
Lacy, Mark;
Pope, Alexandra

Publication type:

Article

Infrared Spectral Energy Distribution and Variability of Active Galactic Nuclei: Clues to the Structure of Circumnuclear Material.

Published in:

Universe (2218-1997), 2022, v. 8, n. 6, p. N.PAG, doi. 10.3390/universe8060304

By:

Lyu, Jianwei;
Rieke, George

Publication type:

Article

Optical Singly-Ionized Iron Emission in Radio-Quiet and Relativistically Jetted Active Galactic Nuclei.

Published in:

Universe (2218-1997), 2021, v. 7, n. 12, p. 1, doi. 10.3390/universe7120484

By:

Marziani, Paola;
Berton, Marco;
Panda, Swayamtrupta;
Bon, Edi

Publication type:

Article