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Related papers: Pulsar Timing with the Fermi LAT

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The wealth of high-energy (E > 50 MeV) and very-high-energy (E > 100 GeV) data accumulated over the past few years have provided unprecedented opportunities to probe pulsar emission models. The Fermi Large Area Telescope (LAT) has now…

High Energy Astrophysical Phenomena · Physics 2017-02-03 Christo Venter

In this paper, a novel fine timing algorithm has been tested and developed to synchronize Ultra-Wideband (UWB) signals with pulse position modulation (PPM). By applying this algorithm, we evaluate timing algorithms in both data-aided (DA)…

Networking and Internet Architecture · Computer Science 2011-02-28 Moez Hizem , Ridha Bouallegue

Pulsars are the most stable macroscopic clocks found in nature. Spinning with periods as short as a few milliseconds, their stability can supersede that of the best atomic clocks on Earth over timescales of a few years. Stable clocks are…

High Energy Astrophysical Phenomena · Physics 2019-03-06 Delphine Perrodin , Alberto Sesana

Using the Parkes radio telescope we have carried out deep observations of eleven unassociated gamma-ray sources. Periodicity searches of these data have discovered two millisecond pulsars, PSR J1103-5403 (1FGL J1103.9-5355) and PSR…

We present a method enabling the creation of constant-uncertainty/constant-significance light curves with the data of the Fermi-Large Area Telescope (LAT). The adaptive-binning method enables more information to be encapsulated within the…

High Energy Astrophysical Phenomena · Physics 2015-06-03 B. Lott , L. Escande , S. Larsson , J. Ballet

Following its launch in June 2008, the Fermi Gamma-ray Space Telescope (Fermi) began a sky survey in August. The Large Area Telescope (LAT) on Fermi in 3 months produced a deeper and better-resolved map of the gamma-ray sky than any…

High Energy Astrophysical Phenomena · Physics 2009-07-06 A. A. Abdo

Satellite quantum communications have rapidly evolved in the past few years, culminating in the proposal, development, and deployment of satellite missions dedicated to quantum key distribution and the realization of fundamental tests of…

In this work, we investigate the potential of gamma-ray pulsar time array (PTA) on gravitational waves background (GWB) using future gamma-ray detectors with larger effective areas. We consider both spaceborne detectors and ground-based…

High Energy Astrophysical Phenomena · Physics 2023-10-18 Zhen Xie , Zhipeng Zhang , Jieshuang Wang , Ruizhi Yang

Gamma rays measured by the Fermi-LAT satellite tell us a lot about the processes taking place in high-energetic astrophysical objects. The fluxes coming from these objects are, however, extremely variable. Hence, gamma-ray light curves…

Instrumentation and Methods for Astrophysics · Physics 2025-02-13 Theo Glauch , Kristian Tchiorniy

In the era of time-domain, multi-messenger astronomy, the detection of transient events on the high-energy electromagnetic sky has become more important than ever. Previous attempts to systematically search for onboard-untriggered events in…

Instrumentation and Methods for Astrophysics · Physics 2022-09-21 F. Kunzweiler , B. Biltzinger , J. Greiner , J. M. Burgess

Pulsars are unique astrophysical laboratories because of their clock-like timing precision, providing new ways to test general relativity and detect gravitational waves. One impediment to high-precision pulsar timing experiments is timing…

Solar and Stellar Astrophysics · Physics 2015-05-20 Rachel Rosen , Maura A. McLaughlin , Susan E. Thompson

Timing observations are crucial for determining the basic parameters of newly discovered pulsars. Using the Five-hundred-meter Aperture Spherical radio Telescope (FAST) with the L-band 19-beam receiver covering the frequency range of…

High Energy Astrophysical Phenomena · Physics 2023-10-12 W. Q. Su , J. L. Han , P. F. Wang , J. P. Yuan , Chen Wang , D. J. Zhou , Tao Wang , Yi Yan , W. C. Jing , Z. L. Yang , N. N. Cai , Xue Chen , Jun Xu , Lang Xie , H. G. Wang , R. X. Xu , X. P. You

Around 160 gamma-ray pulsars were discovered by the Fermi Large Area Telescope (LAT) since 2008. The most energetic of them, 12 objects with emission above 25 GeV, are suitable candidates for the detection with the current and future…

High Energy Astrophysical Phenomena · Physics 2017-08-09 A. Burtovoi , T. Y. Saito , L. Zampieri , T. Hassan

The radio as well as the high energy emission mechanism in pulsars is yet not understood properly. A multi-wavelength study is likely to help in better understanding of such processes. The first Indian space-based observatory, ASTROSAT, has…

Pulsar-timing datasets have been analyzed with great success using probabilistic treatments based on Gaussian distributions, with applications ranging from studies of neutron-star structure to tests of general relativity and searches for…

Instrumentation and Methods for Astrophysics · Physics 2017-02-01 Michele Vallisneri , Rutger van Haasteren

Pulsar Timing Arrays use a set of millisecond pulsars in an attempt to directly detect nanohertz gravitational waves. For this purpose, high precision timing of the pulsars is essential and ultimately a precision of the order of ~100 ns is…

Instrumentation and Methods for Astrophysics · Physics 2015-06-11 Lina Levin

Blind Searches of Fermi Large Area Telescope (LAT) data have resulted in the discovery of 24 gamma-ray pulsars in the first year of survey operations, most of which remain undetected in radio, despite deep radio follow-up searches. I…

High Energy Astrophysical Phenomena · Physics 2011-01-18 P. M. Saz Parkinson

A pulsar timing system has been operating in the 18-cm band at the Urumqi Astronomical Observatory 25-m telescope since mid-1999. Frequency resolution allowing dedispersion of the pulsar signals is provided by a 2X128X2.5 MHz…

Astrophysics · Physics 2009-11-07 N. Wang , R. N. Manchester , J. Zhang , X. J. Wu , A. Yusup , A. G. Lyne , K. S. Cheng , M. Z. Chen

We present results of a timing analysis of various isolated pulsars using ESA's \emph{XMM-Newton} observatory. Isolated pulsars are useful for calibration purposes because of their stable emission. We have analyzed six pulsars with…

Astrophysics · Physics 2007-12-11 A. Martin-Carrillo , M. Kirsch , E. Kendziorra , R. Staubert

Nancay radiotelescope is involved in high precision timing since 20 years. Since 2004, a coherent dedispersion instrumentation enables numerous routine observations on more than 200 pulsars using half of the time if this 100-meters class…

Cosmology and Nongalactic Astrophysics · Physics 2009-11-10 I. Cognard , G. Theureau , G. Desvignes , R. Ferdman
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