Results 71 to 80 of about 108,919 (255)
Bursts of the Crab Nebula gamma-ray emission at high and ultra-high energies
EPJ Web of Conferences, 2017 Characteristics of the flares of gamma rays detected from the Crab Nebula by the AGILE and Fermi-LAT satellite instruments are compared with those of a gamma ray burst recorded by several air shower arrays on February 23, 1989 and with one recent ...
Lidvansky A.S.
doaj +2 more sources
Giant radio pulses from the Crab pulsar [PDF]
Advances in Space Research, 2005 Individual giant radio pulses (GRPs) from the Crab pulsar last only a few microseconds. However, during that time they rank among the brightest objects in the radio sky reaching peak flux densities of up to 1500 Jy even at high radio frequencies. Our observations show that GRPs can be found in all phases of ordinary radio emission including the two ...
Jessner, A. +6 more
openaire +3 more sources
Scattering features and variability of the Crab pulsar [PDF]
Monthly notices of the Royal Astronomical Society, 2018 We report on Westerbork Synthesis Radio Telescope observations of the Crab pulsar at 350 MHz from 2012 November 24 until 2015 June 21. During this period we consistently observe variations in the pulse profile of the Crab.
L. Driessen +7 more
semanticscholar +1 more source
Laue Gamma‐Ray Lenses for Space Astrophysics: Status and Prospects
X-Ray Optics and Instrumentation, Volume 2010, Issue 1, 2010., 2010 We review feasibility studies, technological developments, and the astrophysical prospects for Laue lenses devoted to hard X‐/gamma‐ray astronomy observations.
Filippo Frontera +2 more
wiley +1 more source
A Review of Procedures for Summing Kapteyn Series in Mathematical Physics
Advances in Mathematical Physics, Volume 2009, Issue 1, 2009., 2009 Since the discussion of Kapteyn series occurrences in astronomical problems the wealth of mathematical physics problems in which such series play dominant roles has burgeoned massively. One of the major concerns is the ability to sum such series in closed form so that one can better understand the structural and functional behavior of the basic ...
R. C. Tautz, I. Lerche, M. Lakshmanan
wiley +1 more source
Minimum glitch of the Crab pulsar and the crustquake as a trigger mechanism [PDF]
, 2017 We discuss the minimum glitch size of Crab observed by Espinoza et al. (2014). Modelling the crustquake as a trigger mechanism we estimate the size of the broken plate. The plate size obtained, D $\sim 100 m$ is comparable to plate size estimates for PSR
O. Akbal, M. Alpar
semanticscholar +1 more source
Temporal clustering of rotational glitches in the Crab pulsar [PDF]
Monthly notices of the Royal Astronomical Society, 2018 It is an open question whether glitch activity in individual pulsars varies on decadal time-scales. The Crab pulsar has experienced 23 spin-up glitches in the last 36 years, interrupting an otherwise monotonic deceleration. A homogeneous Poisson process,
J. Carlin, A. Melatos, Damjan Vukcevic
semanticscholar +1 more source
The Astrophysical JournalIt was previously believed that the long-term persistent increase in the spin-down rate of the Crab pulsar following a glitch is direct evidence of a starquake-induced glitch or at least related to a starquake.
Xiao-Ping Zheng +4 more
doaj +1 more source
Resolving the Emission Regions of the Crab Pulsar’s Giant Pulses [PDF]
Astrophysical Journal, 2017 The Crab pulsar has striking radio emission properties, with the two dominant pulse components—the main pulse and the interpulse—consisting entirely of giant pulses.
R. Main +7 more
semanticscholar +1 more source
Restoration Ecology, Volume 32, Issue 3, March 2024.Transplantations of organisms in aquatic ecosystems play an important role in ecological restoration and commercial practices. However, success rates of these transplantations, especially when ecosystem engineers are involved, are often low. To enhance transplantation success, the promotion of self‐facilitation between transplants that mitigate ...
Lisanne A. van den Bogaart +3 more
wiley +1 more source