2,145 research outputs found
Challenges facing Arab journalism, freedom, safety and economic security
Court of Appeals No. $80203-CA Argument priority Classification 14-b BRIEF OF APPELLANT Appeal from the Decision of the Second Judicial District Court of Weber County, State of Utah
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Challenges facing Arab journalism, freedom, safety and economic security
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Review of John Mair and Richard Keeble book Mirage in the Dessert? Reporting the ‘Arab Spring’
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The July 2006 War and the Lebanese blogsphere: towards an alternative media tool in covering wars
Discovery of an Energetic Pulsar Associated with SNR G76.9+1.0
We report the discovery of PSR J2022+3842, a 24 ms radio and X-ray pulsar in
the supernova remnant G76.9+1.0, in observations with the Chandra X-ray
telescope, the Robert C. Byrd Green Bank Radio Telescope, and the Rossi X-ray
Timing Explorer (RXTE). The pulsar's spin-down rate implies a rotation-powered
luminosity Edot = 1.2 x 10^{38} erg/s, a surface dipole magnetic field strength
B_s = 1.0 x 10^{12} G, and a characteristic age of 8.9 kyr. PSR J2022+3842 is
thus the second-most energetic Galactic pulsar known, after the Crab, as well
as the most rapidly-rotating young, radio-bright pulsar known. The radio
pulsations are highly dispersed and broadened by interstellar scattering, and
we find that a large (delta-f / f ~= 1.9 x 10^{-6}) spin glitch must have
occurred between our discovery and confirmation observations. The X-ray pulses
are narrow (0.06 cycles FWHM) and visible up to 20 keV, consistent with
magnetospheric emission from a rotation-powered pulsar. The Chandra X-ray image
identifies the pulsar with a hard, unresolved source at the midpoint of the
double-lobed radio morphology of SNR G76.9+1.0 and embedded within faint,
compact X-ray nebulosity. The spatial relationship of the X-ray and radio
emissions is remarkably similar to extended structure seen around the Vela
pulsar. The combined Chandra and RXTE pulsar spectrum is well-fitted by an
absorbed power-law model with column density N_H = (1.7\pm0.3) x 10^{22}
cm^{-2} and photon index Gamma = 1.0\pm0.2; it implies that the Chandra
point-source flux is virtually 100% pulsed. For a distance of 10 kpc, the X-ray
luminosity of PSR J2022+3842 is L_X(2-10 keV) = 7.0 x 10^{33} erg s^{-1}.
Despite being extraordinarily energetic, PSR J2022+3842 lacks a bright X-ray
wind nebula and has an unusually low conversion efficiency of spin-down power
to X-ray luminosity, L_X/Edot = 5.9 x 10^{-5}.Comment: 8 pages in emulateapj format. Minor changes (including a shortened
abstract) to reflect the version accepted for publicatio
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Covering the Qana 'Massacre' 1996: A case of contextual objectivity
This article is part of a larger qualitative study that investigates the Lebanese journalism culture and performance in relation to the Israeli forces' operations against Lebanon and their encounters with the Lebanese resistance between 1996 and 2000. News values and objectivity are key aspects of the culture that this paper explores. It is a story about journalism told by a journalist, yet one who uses academic tools to narrate her story and the story of her fellow journalists. The article presents part of the author's own story - an ethnographic account of Tele Liban's coverage during the 1996 ‘Grapes of Wrath’ operation, as Israel then called it. The performance of Tele Liban journalists during this period will be presented and examined in relation to journalistic norms of objectivity, neutrality, balance and truth. This paper examines what might be identified as alternative ways of understanding reporting wars and conflicts and argues that in this particular situation, reporting was a case of contextual objectivity
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