Results 121 to 130 of about 1,170,090 (200)

A survey of ultraviolet variability in blazars

The Astrophysical Journal, 1992
This is the first comprehensive, consistent survey of the ultraviolet variability properties of a large sample of blazars. All of the 14 blazars with five or more observations in a single IUE camera showed significant variability. The strength of the ultraviolet variability is positively correlated with both the apparent ultraviolet luminosity and the ...
openaire   +1 more source

Multifrequency emission characterization of the gamma-ray blazar PG 1553+113

openPG 1553+113 è uno dei rari blazar (galassie attive con getto allineato verso l'osservatore) osservati fino alle frequenze dei raggi gamma delle altissime energie, E>100 GeV.
SALION, FRANCESCO MARIA
core  

MULTIWAVELENGTH VARIABILITY PROPERTIES OF FERMI BLAZAR S5 0716+714

, 2014
S5 0716+714 is a typical BL Lacertae object. In this paper we present the analysis and results of long-term simultaneous observations in the radio, near-infrared, optical, X-ray, and gamma-ray bands, together with our own photometric observations for ...
Bai, J. M., Weng, S. S., Chen, Liang, Liao, N. H., Li, F., Liu, H. T.   +5 more
core  

Blazars define a stable celestial reference frame

Astronomy & Astrophysics
Context. Recent work has shown that optical-radio position offsets and radio position variability are inversely correlated with the optical photometric variability of active galactic nuclei (AGN).
Secrest N. J., Lambert S.
doaj   +1 more source

Variability Properties of Blazar S5 1803+784 on the Shortest Timescale [PDF]

Блазар S5 1803+784 имеет длительные ряды данных наблюдений, выполненных спутником TESS. Из-за малой яркости блазара и большого размера пикселя на ПЗС-камере мы проводим относительную фотометрию с использованием суммированных вырезок из полнокадровых ...
Гусева, В. А., Guseva, V. A.
core   +1 more source

A Search for Supermassive Black Hole Binary Candidates in 46 yr Radio Light Curves of 83 Blazars

The Astrophysical Journal
The combined University of Michigan Radio Astronomy Observatory and Owens Valley Radio Observatory blazar monitoring programs at 14.5/15 GHz provide uninterrupted light curves of ∼ 46–50 yr duration for 83 blazars, selected from among the brightest and ...
B. Molina, P. Mróz, P. V. De la Parra, A. C. S. Readhead, T. Surti, M. F. Aller, J. D. Scargle, R. A. Reeves, H. Aller, M. C. Begelman, R. D. Blandford, Y. Ding, M. J. Graham, F. Harrison, T. Hovatta, I. Liodakis, M. L. Lister, W. Max-Moerbeck, V. Pavlidou, T. J. Pearson, V. Ravi, A. G. Sullivan, A. Synani, K. Tassis, S. E. Tremblay, J. A. Zensus   +25 more
doaj   +1 more source

Human CD19-specific switchable CAR T-cells are efficacious as constitutively active CAR T-cells but cause less morbidity in a mouse model of human CD19⁺ malignancy. [PDF]

J Immunother Cancer, 2022
Pennell CA, Campbell H, Storlie MD, Bolivar-Wagers S, Osborn MJ, Refaeli Y, Jensen M, Viaud S, Young TS, Blazar BR.   +9 more
europepmc   +1 more source

Multi-band optical variability on diverse timescales of blazar 1E 1458.8+2249

This study presents an analysis of the optical variability of the blazar 1E 1458.8+2249 on diverse timescales using multi-band observations, including observations in the optical BVRI bands carried out with the T60 and T100 telescopes from 2020 to 2023 ...
ÖZDÖNMEZ, Aykut, Tekkeşinoǧlu, Murat
core   +1 more source

Polarized blazar X-rays imply particle acceleration in shocks. [PDF]

Nature, 2022
Liodakis I, Marscher AP, Agudo I, Berdyugin AV, Bernardos MI, Bonnoli G, Borman GA, Casadio C, Casanova VC, Cavazzuti E, Rodriguez Cavero N, Di Gesu L, Di Lalla N, Donnarumma I, Ehlert SR, Errando M, Escudero J, Garcı A-Comas M, Agı S-González B, Husillos C, Jormanainen J, Jorstad SG, Kagitani M, Kopatskaya EN, Kravtsov V, Krawczynski H, Lindfors E, Larionova EG, Madejski GM, Marin F, Marchini A, Marshall HL, Morozova DA, Massaro F, Masiero JR, Mawet D, Middei R, Millar-Blanchaer MA, Myserlis I, Negro M, Nilsson K, O'Dell SL, Omodei N, Pacciani L, Paggi A, Panopoulou GV, Peirson AL, Perri M, Petrucci PO, Poutanen J, Puccetti S, Romani RW, Sakanoi T, Savchenko SS, Sota A, Tavecchio F, Tinyanont S, Vasilyev AA, Weaver ZR, Zhovtan AV, Antonelli LA, Bachetti M, Baldini L, Baumgartner WH, Bellazzini R, Bianchi S, Bongiorno SD, Bonino R, Brez A, Bucciantini N, Capitanio F, Castellano S, Ciprini S, Costa E, De Rosa A, Del Monte E, Di Marco A, Doroshenko V, Dovčiak M, Enoto T, Evangelista Y, Fabiani S, Ferrazzoli R, Garcia JA, Gunji S, Hayashida K, Heyl J, Iwakiri W, Karas V, Kitaguchi T, Kolodziejczak JJ, La Monaca F, Latronico L, Maldera S, Manfreda A, Marinucci A, Matt G, Mitsuishi I, Mizuno T, Muleri F, Ng SC, Oppedisano C, Papitto A, Pavlov GG, Pesce-Rollins M, Pilia M, Possenti A, Ramsey BD, Rankin J, Ratheesh A, Sgró C, Slane P, Soffitta P, Spandre G, Tamagawa T, Taverna R, Tawara Y, Tennant AF, Thomas NE, Tombesi F, Trois A, Tsygankov S, Turolla R, Vink J, Weisskopf MC, Wu K, Xie F, Zane S.   +127 more
europepmc   +1 more source

Emerging translational strategies and challenges for enhancing regulatory T cell therapy for graft-versus-host disease. [PDF]

Front Immunol, 2022
Hippen KL, Hefazi M, Larson JH, Blazar BR.   +3 more
europepmc   +1 more source