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Proceedings of the 11th ACM Conference on Emerging Networking Experiments and Technologies, 2015 With the great success of LTE(-A) outdoor, LTE-based small cell technology has become popular and is penetrating indoor enterprise environment, co-existing with WiFi networks, to provide better user experience or Quality-of-Experience (QoE). However, accurate estimation of LTE links is challenging and critical to continue providing QoE for many ...
Uma Parthavi Moravapalle +3 more
openaire +4 more sources
Polarimetric Evidence of the First White Dwarf Pulsar: The Binary System AR Scorpii
Galaxies, 2018 The binary star AR Scorpii was recently discovered to exhibit high amplitude coherent variability across the electromagnetic spectrum (ultraviolet to radio) at two closely spaced ∼2 min periods, attributed to the spin period of a white dwarf and the beat
David A.H. Buckley +4 more
doaj +1 more source
Pair Multiplicities and Pulsar Death [PDF]
, 2001 Through a simple model of particle acceleration and pair creation above the polar caps of rotation-powered pulsars, we calculate the height of the pair-formation front (PFF) and the dominant photon emission mechanism for the pulsars in the Princeton ...
Johann A. Hibschman +6 more
core +2 more sources
Recent H-alpha Results on Pulsar B2224+65’s Bow-Shock Nebula, the “Guitar” [PDF]
Journal of Astronomy and Space Sciences, 2016 We used the 4 m Discovery Channel Telescope (DCT) at Lowell observatory in 2014 to observe the Guitar Nebula, an Hα bow-shock nebula around the high-velocity radio pulsar B2224+65.
Timothy Dolch +5 more
doaj +1 more source
The environment of TeV halo progenitors
Astronomy & AstrophysicsContext. TeV haloes are extended sources of very-high-energy gamma rays found around some middle-aged pulsars. The emission spanning several tens of parsecs suggests an efficient confinement of the ultra-relativistic lepton pairs produced by pulsars in ...
Bourguinat Lioni-Moana +3 more
doaj +1 more source
Pulsar Electrodynamics — Pulsars and Puzzlers — [PDF]
International Astronomical Union Colloquium, 1996 Abstract A gedanken experiment presented here provides basic understanding of how the pulsar magnetosphere operates. We discuss current issues about the electric-field acceleration along magnetic field lines and subsequent pair creation, and also about the pulsar wind problem.
openaire +1 more source
Pulsar interpretation of the lepton spectra measured by AMS-02 [PDF]
, 2016 AMS-02 recently published its lepton spectra measurement. The results show that the positron fraction no longer increases above $\sim$200 GeV. The aim of this work is to investigate the possibility that the excess of positron fraction is due to pulsars ...
Feng, Jie, Zhang, Hong-Hao
core +2 more sources
Born to be recycled: A comprehensive population synthesis of the Galactic millisecond pulsars
Astronomy & AstrophysicsContext. Millisecond pulsars (MSPs) are the oldest and fastest pulsars known to date. The first MSP to be discovered was PSR B1937+21 in 1982. To explain how these pulsars could be formed, a new hypothesis was formulated: the recycling of pulsars, i.e ...
Sautron Mattéo +4 more
doaj +1 more source
Understanding the diffuse gamma ray emission of the milky way - from supernova remnants to dark matter [PDF]
Zbornik Matice Srpske za Prirodne Nauke, 2019 Diffuse gamma ray emission from the Galactic center at 2-3 GeV, as well as the 12 TeV gamma ray excess in the Galactic disk, remain open for debate and represent the missing puzzles in the complete picture of the high-energy Milky Way sky.
Petrović Jovana M. +2 more
doaj +1 more source