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The SWIFT gamma ray observatory's Burst Alert Telescope (BAT) has detected a sample of active galactic nuclei (AGN) based solely on their hard X-ray flux (14-195 keV). In this paper, we present for the first time {\it XMM-Newton} X-ray…

Astrophysics · Physics 2009-11-13 Lisa M. Winter , Richard F. Mushotzky , Jack Tueller , Craig Markwardt

IGR J18219-1347 is a hard X-ray source discovered by INTEGRAL in 2010. We have analyzed the X-ray emission of this source exploiting the BAT survey data up to March 2012 and the XRT data that include also an observing campaign performed in…

High Energy Astrophysical Phenomena · Physics 2015-06-16 V. La Parola , G. Cusumano , A. Segreto , A. D'Aì , N. Masetti , V. D'Elia

To investigate the use of saliency-map analysis to aid in searches for transient signals, such as fast radio bursts and individual pulses from radio pulsars. We aim to demonstrate that saliency maps provide the means to understand…

Instrumentation and Methods for Astrophysics · Physics 2020-09-30 C. Zhang , C. Wang , G. Hobbs , C. J. Russell , D. Li , S. -B. Zhang , S. Dai , J. -W. Wu , Z. -C. Pan , W. -W. Zhu , L. Toomey , Z. -Y. Ren

Two classes of gamma-ray bursts have been identified in the BATSE catalogs characterized by durations shorter and longer than about 2 seconds. There are, however, some indications for the existence of a third class. Swift satellite…

Astrophysics · Physics 2008-10-01 I. Horvath , L. G. Balazs , Z. Bagoly , P. Veres

Open Universe for blazars is a set of high-transparency data products for blazar science, and the tools designed to generate them. Blazar astrophysics is becoming increasingly data driven, depending on the integration and combined analysis…

Surveys open up unbiased discovery space and generate legacy datasets of long-lasting value. One of the goals of imaging arrays of Cherenkov telescopes like CTA is to survey areas of the sky for faint very high energy gamma-ray (VHE)…

High Energy Astrophysical Phenomena · Physics 2019-08-14 G. Dubus , J. L. Contreras , S. Funk , Y. Gallant , T. Hassan , J. Hinton , Y. Inoue , J. Knödlseder , P. Martin , N. Mirabal , M. de Naurois , M. Renaud

Accurately determining resonance frequencies and quality factors (Q) is crucial in accelerator physics and radiofrequency engineering, as these factors have direct impacts on system design, operational stability, and research results. The…

Accelerator Physics · Physics 2025-10-08 Kerem Semiz

The nature of a substantial percentage (about one fifth) of hard X-ray sources discovered with the BAT instrument onboard the Neil Gehrels Swift Observatory (hereafter Swift) is unknown because of the lack of an identified longer-wavelength…

We present a new Python pipeline for processing data from astronomical long-slit spectroscopy observations recorded with CCD detectors. The pipeline is designed to aim for simplicity, manual execution, transparency and robustness. The goal…

Instrumentation and Methods for Astrophysics · Physics 2025-04-02 Kostas Valeckas , Johan Peter Uldall Fynbo , Jens-Kristian Krogager , Kasper Elm Heintz

Forthcoming instruments designed for high-cadence large-area surveys, such as the Dark Energy Survey and Large Synoptic Survey Telescope, will generate several GB of data products every few minutes during survey operations. Since such…

Instrumentation and Methods for Astrophysics · Physics 2012-08-01 K. Kuehn , R. Hupe

Having been operational at Kitt Peak for more than a year, the prototype of the Hungarian Automated Telescope (HAT-1) has been used for all-sky variability search of the northern hemisphere. The small autonomous observatory is recording…

Astrophysics · Physics 2009-12-10 Gaspar A. Bakos , Jozsef Lazar , Istvan Papp , Pal Sari , Elizabeth M. Green

The most recent all-sky surveys performed with the INTEGRAL and SWIFT satellites allowed the detection of more than 1500 sources in hard X-rays above 20 keV. About one quarter of them has no obvious counterpart at other wavelengths and…

Analyzing data from GLAST's Large Area Telescope (LAT) will require sophisticated techniques. The PSF and effective area are functions of both photon energy and the position in the field-of-view. During most of the mission the observatory…

Astrophysics · Physics 2009-11-10 David L. Band , Seth W. Digel , the GLAST LAT Collaboration , the GSSC

We present sensipy, an open-source Python toolkit for simulating observations of transient astrophysical sources, particularly in the high-energy (HE, keV-GeV) and very-high-energy (VHE, GeV-TeV) gamma-ray ranges. The most explosive events…

High Energy Astrophysical Phenomena · Physics 2026-02-16 Jarred G. Green , Barbara Patricelli , Antonio Stamerra , Monica Seglar-Arroyo

The ESA M3 candidate mission LOFT (Large Observatory For x-ray Timing) has been designed to study strong gravitational fields by observing compact objects, such as black-hole binaries or neutron-star systems and supermassive black-holes,…

Instrumentation and Methods for Astrophysics · Physics 2014-08-29 S. Schanne , D. Götz , H. Le Provost , F. Château , E. Bozzo , S. Brandt

In the last years the hard X-ray astronomy has made a significant step forward, thanks to the monitoring of the IBIS/ISGRI telescope on board the INTEGRAL satellite and of the Burst Alert Telescope (BAT) on board of the Swift observatory.…

High Energy Astrophysical Phenomena · Physics 2015-06-16 A. Segreto , G. Cusumano , V. La Parola , A. D'Aì , N. Masetti , P. D'Avanzo

The Australian SKA Pathfinder (ASKAP) is a next generation radio telescope currently under construction in Western Australia. The fast survey speed and wide field of view make it an ideal instrument for blind transients searches. The ASKAP…

Instrumentation and Methods for Astrophysics · Physics 2012-01-17 Jay Banyer , Tara Murphy , the VAST Collaboration

The sensitivity of the Large Area Telescope (LAT) aboard the Fermi Gamma-ray Space Telescope allows detection of thousands of new gamma-ray sources and detailed characterization of the spectra and variability of bright sources.…

Instrumentation and Methods for Astrophysics · Physics 2015-03-18 Matthew Kerr

We have created a new image analysis pipeline to reprocess images taken by the Near Earth Asteroid Tracking survey and have applied it to ten nights of observations. This work is the first large-scale reprocessing of images from an asteroid…

We present the first major data release of the largest single key-project in area carried out in open time with the Herschel Space Observatory. The Herschel Astrophysical Terahertz Large Area Survey (H-ATLAS) is a survey of 600 deg^2 in…