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We present the results of our identification of 14 X-ray sources detected in the eastern Galactic sky ($0<l<180 \circ$ ) in the 4-12 keV energy band on the combined map of the first five all-sky surveys (from December 2019 to March 2022)…

During the Core Programme, INTEGRAL has surveyed a large portion of the sky (around 9000 square degrees); although INTEGRAL is not optimized for extra-galactic studies its observations have nevertheless given us the opportunity to explore…

The IceCube Neutrino Observatory has revealed the existence of sources of high-energy astrophysical neutrinos. However, identification of the sources is challenging because astrophysical neutrinos are difficult to separate from the…

Instrumentation and Methods for Astrophysics · Physics 2020-01-09 D. Rysewyk , D. Lennarz , T. DeYoung , J. Auffenberg , M. Schaufel , T. Bretz , C. Wiebusch , M. U. Nisa

Measurement of diffuse gamma-ray emission from the Milky Way with Imaging Atmospheric Cherenkov Telescopes (IACT) is difficult because of high level of charged cosmic ray background and small field-of-view. We show that such a measurement…

High Energy Astrophysical Phenomena · Physics 2020-05-13 A. Neronov , D. Semikoz

The Cherenkov Telescope Array (CTA) observatory, will be deployed over two sites in the two hemispheres. Both sites will be equipped with four Large Size Telescopes (LSTs), which are crucial to achieve the science goals of CTA in the 20-200…

Instrumentation and Methods for Astrophysics · Physics 2019-08-14 J. Cortina , M. Teshima

The High-Altitude Water Cherenkov (HAWC) Observatory, located 4100 m above sea level near Sierra Negra (19$^\circ$ N) in Mexico, is sensitive to gamma rays and cosmic rays at TeV energies. The arrival direction distribution of cosmic rays…

High Energy Astrophysical Phenomena · Physics 2019-08-13 S. Y. BenZvi , D. W. Fiorino , S. Westerhoff

Ground-based gamma-ray astronomy has had a major breakthrough with the impressive results obtained using systems of imaging atmospheric Cherenkov telescopes. Ground-based gamma-ray astronomy has a huge potential in astrophysics, particle…

Instrumentation and Methods for Astrophysics · Physics 2012-04-13 The CTA Consortium

We propose using large Air Cerenkov Telescopes (ACT's) to search for optical, pulsed signals from extra-terrestrial intelligence. Such dishes collect tens of photons from a nanosecond-scale pulse of isotropic equivalent power of tens of…

Astrophysics · Physics 2007-05-23 David Eichler , Gregory Beskin

We consider 9 fields of low ecliptic latitude observed at 12 microns centered on QSOs. In these fields we detect 7 additional background sources at the level of 0.4-4mJy in 70 square arcminutes. 4 of these sources correspond to galaxies…

Astrophysics · Physics 2007-05-23 A. C. Quillen

The Westerbork Radio Synthesis Telescope, WSRT, has been used to make a deep radio survey of an ~ 1.7 sq degree field coinciding with the AKARI North Ecliptic Pole Deep Field. The observations, data reduction and source count analysis are…

We report on the first detection of very high-energy (VHE) gamma-ray emission from the Crab Nebula by a Cherenkov telescope in dual-mirror Schwarzschild-Couder (SC) configuration. The result has been achieved by means of the 4 m size…

The ATIC balloon-borne experiment measures the energy spectra of elements from H to Fe in primary cosmic rays from about 100 GeV to 100 TeV. ATIC is comprised of a fully active bismuth germanate calorimeter, a carbon target with embedded…

Adaptive Optics observations have dramatically improved the quality and versatility of high angular resolution measurements of the center of our Galaxy. In this paper, we quantify the quality of our Adaptive Optics observations and report…

Astrophysics of Galaxies · Physics 2015-06-11 S. Yelda , A. M. Ghez , J. R. Lu , T. Do , L. Meyer , M. R. Morris

We present first preliminary results from AKARI/FIS pointed observations of post-AGB stars and planetary nebulae (PNe). A first analysis of the radial (azimuthally averaged) profile of the observed sources shows no evidence for excess…

Astrophysics of Galaxies · Physics 2009-05-19 Nick Cox , Pedro García-Lario , Anibal García-Hernández , Arturo Manchado

High energy gamma-ray astronomy is a newly emerging and very successful branch of astronomy and astrophysics. Exciting results have been obtained by the current generation Cherenkov telescope systems such as H.E.S.S., MAGIC, VERITAS and…

Astrophysics · Physics 2019-08-14 G. Hermann , W. Hofmann , T. Schweizer , M. Teshima

The Nuclear Spectroscopic Telescope Array (NuSTAR) is the first focusing high energy (3-79 keV) X-ray observatory operating for four years from low Earth orbit. The X-ray detector arrays are located on the spacecraft bus with the optics…

Instrumentation and Methods for Astrophysics · Physics 2016-08-08 Karl Forster , Kristin K. Madsen , Hiromasa Miyasaka , William W. Craig , Fiona A. Harrison , Vikram R. Rana , Craig B. Markwardt , Brian W. Grefenstette

We present the Multi-Array Galactic Plane Imaging Survey (MAGPIS), which maps portions of the first Galactic quadrant with an angular resolution, sensitivity and dynamic range that surpasses existing radio images of the Milky Way by more…

Astrophysics · Physics 2010-02-23 David J. Helfand , Robert H. Becker , Richard L. White , Adam Fallon , Sarah Tuttle

The development of the atmospheric Cherenkov imaging technique has led to significant advances in gamma-ray detection sensitivity in the energy range from 200 GeV to 50 TeV. The Whipple Observatory 10m reflector has detected the first…

Astrophysics · Physics 2007-05-23 T. C. Weekes

The Cherenkov Telescope Array is the main global project of ground-based gamma-ray astronomy for the coming decades. Performance will be significantly improved relative to present instruments, allowing a new insight into the high-energy…

High Energy Astrophysical Phenomena · Physics 2017-09-27 Sol , H. , Greenshaw , T. , Le Blanc , O. , White , R

By the 2040s--50s, facilities such as \emph{Gaia}, WEAVE, 4MOST, Rubin, \emph{Euclid}, \emph{Roman}, and the ESO ELT will have transformed our global view of the Milky Way. Yet key questions will remain incompletely resolved: a detailed…