Results 51 to 60 of about 24,339 (257)

Study on the Gamma-Ray Radiation Properties of High-Redshift Blazars at z > 2.5

Universe
The high-redshift blazars are important cosmological probes for exploring the early universe and unraveling the fundamental emission processes and the structure of the active galactic nuclei.
Fan Wu, Li Zhang, Benzhong Dai
doaj   +1 more source

Herschel-ATLAS: Blazars in the science demonstration phase field [PDF]

, 2010
To investigate the poorly constrained sub-mm counts and spectral properties of blazars we searched for these in the Herschel-ATLAS (H-ATLAS) science demonstration phase (SDP) survey catalog.
González-Nuevo, J., Vieira, J. D.
core  

Gamma-Ray Observational Properties of TeV-Detected Blazars [PDF]

, 2013
The synergy between the Fermi-LAT and ground-based Cherenkov telescope arrays gives us the opportunity for the first time to characterize the high-energy emission from blazars over 5 decades in energy, from 100 MeV to 10 TeV.
Boettcher, M., Errando, M., Mukherjee, R., Senturk, G. D.   +3 more
core   +3 more sources

Exercising electrocardiograms from Thoroughbred racehorses with exercise associated sudden death

Equine Veterinary Journal, EarlyView.
Abstract Background Exercise associated sudden death (EASD), defined as a fatal collapse in a closely monitored and previously presumed clinically healthy horse that occurs during exercise or within approximately 1 h after exercise, is disproportionately more common in equine than in human athletes.
Cristobal Navas de Solis, M. Durando, L. Nath, S. Durward‐Akhurst   +3 more
wiley   +1 more source

Extreme Jet Beaming Observed in Neutrino-associated Blazars

The Astrophysical Journal
Bright blazars were found to be prominent neutrino sources, and a number of IceCube events were associated with them over recent years. A particularly strong observational connection is present between neutrinos and blazars with bright, Doppler-boosted ...
A. V. Plavin, Y. Y. Kovalev, S. V. Troitsky   +2 more
doaj   +1 more source

On the Nature of MeV Blazars

The Astrophysical Journal, 2002
Accepted for publication in the Astrophysical ...
Sikora, Marek, Blazejowski, Michal, Moderski, Rafal, Madejski, Greg   +3 more
openaire   +2 more sources

Comparative efficacy and studies of mode of action of minerals from diatoms against three species of filth flies

Medical and Veterinary Entomology, EarlyView.
Mortality for diatomaceous earth was observed as early as 2 h after exposure with 50% and 90% mortality at 3.5 and 4.6 h (LT50 and LT90, respectively) for Musca domestica. The LT50 and LT90 increased when the size of the fly species increased (M. domestica to Cochliomyia macellaria to Sarcophaga bullata) and increased for all three from 50 to 70 ...
Grayson L. Cave, Kaiying Chen, Steven S. Denning, David W. Watson, R. Michael Roe   +4 more
wiley   +1 more source

BlazEr1: The eROSITA blazar catalog

Astronomy & Astrophysics
Aims.eROSITA, on board the Spectrum Roentgen Gamma (SRG) spacecraft, performed its first X-ray all-sky survey (eRASS1) between December 2019 and June 2020.
Hämmerich S., Gokus A., McBride F., Weber P., Marcotulli L., Zainab A., Collmar W., Salvato M., Wolf J., Sbarrato T., Belladitta S., Buchner J., Saeedi S., Dauner L., Lorenz M., König O., Kirsch C., Berger K., Bahic S., Tubín-Arenas D., Krumpe M., Homan D., Markowitz A., Benke P., Rösch F., Rajasekar Kavitha P., Tambe H., Kadler M., Ros E., Ojha R., Wilms J.   +30 more
doaj   +1 more source

The Extremes in Intra-Night Blazar Variability: The S4 0954+65 Case

Galaxies, 2016
We present results of optical observations of the extremely violently variable blazar S4 0954+65 on intra-night time scales. The object showed flux changes of up to 100% within a few hours.
Rumen Bachev, Anton Strigachev, Evgeni Semkov, Rosa Victoria Muñoz Dimitrova, Georgi Latev, Borislav Spassov, Blagovest Petrov   +6 more
doaj   +1 more source

High Energy Polarization of Blazars : Detection Prospects

, 2014
Emission from blazar jets in the ultraviolet, optical, and infrared is polarized. If these low-energy photons were inverse-Compton scattered, the upscattered high-energy photons retain a fraction of the polarization.
Chakraborty, Nachiketa, Fields, Brian, Pavlidou, Vasiliki   +2 more
core   +1 more source