Search for TeV Emissions from Pulsars in Binary Systems
نویسندگان
چکیده
منابع مشابه
Searching for Pulsars in Close Binary Systems
We present a detailed mathematical analysis of the Fourier response of binary pulsar signals whose frequencies are modulated by circular orbital motion. The fluctuation power spectrum of such signals is found to be νorb-periodic over a compact frequency range, where νorb denotes orbital frequency. Subsequently, we consider a wide range of binary systems with circular orbits and short orbital pe...
متن کاملGamma-ray Emissions from Pulsars: Upper Limits on the Tev Fluxes from Outer Magnetospheres
We study the γ-ray emissions from an outer-magnetospheric gap around a rotating neutron star. Migratory electrons and positrons are accelerated by the electric field in the gap to radiate copious γ-rays via curvature process. Some of these gamma-rays materialize as pairs by colliding with the X-rays in the gap, leading to a pair production cascade. Imposing a gap closure condition that a single...
متن کاملTeV neutrinos and gamma rays from pulsars
Recent studies suggest that pulsars could be strong sources of TeV muon neutrinos provided positive ions are accelerated by pulsar polar caps to PeV energies. In such a situation muon neutrinos are produced through the delta resonance in interactions of pulsar accelerated ions with its thermal radiation field. High energy gamma rays also should be produced simultaneously in pulsar environment a...
متن کاملA New Search Technique for Short Orbital Period Binary Pulsars
We describe a new and efficient technique which we call sideband or phasemodulation searching that allows one to detect short period binary pulsars in observations longer than the orbital period. The orbital motion of the pulsar during long observations effectively modulates the phase of the pulsar signal causing sidebands to appear around the pulsar spin frequency and its harmonics in the Four...
متن کاملTeV Emission from Millisecond Pulsars in Compact Binaries?
Millisecond pulsars (MSPs) whose spin periods are shorter than ∼ 5 ms are thought to be old neutron stars that have been “recycled” through an extended period of accretion by a low mass companion (see [16] for an overview of these systems). Although there are exceptions, they are usually found in highly circular orbits around low mass (Mc ∼ 0.4M") white dwarves. Despite apparently having relati...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: The Astrophysical Journal
سال: 2003
ISSN: 0004-637X,1538-4357
DOI: 10.1086/345504