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Penetrating form of electromagnetic radiation
A gamma ray, also known as gamma radiation (symbol γ), is a penetrating form of electromagnetic radiation arising from high-energy interactions like the
Gamma_ray
Flash of gamma rays from a distant galaxy
In gamma-ray astronomy, gamma-ray bursts (GRBs) are extremely energetic events occurring in distant galaxies that represent the brightest and most powerful
Gamma-ray_burst
German power metal band
Gamma Ray is a German power metal band from Hamburg, founded and fronted by Kai Hansen after his departure from power metal band Helloween, in 1989. He
Gamma_Ray_(band)
Space telescope for gamma-ray astronomy launched in 2008
The Fermi Gamma-ray Space Telescope (FGST, also FGRST), formerly called the Gamma-ray Large Area Space Telescope (GLAST), is a space observatory being
Fermi Gamma-ray Space Telescope
Fermi_Gamma-ray_Space_Telescope
Burst of gamma rays produced in the Earth's atmosphere
A terrestrial gamma-ray flash (TGF), also known as dark lightning, is a burst of gamma rays produced in Earth's atmosphere. TGFs have been recorded to
Terrestrial_gamma-ray_flash
Hypothetical device
A gamma-ray laser, or graser, is a hypothetical device that would produce coherent gamma rays, just as an ordinary laser produces coherent rays of visible
Gamma-ray_laser
Topics referred to by the same term
gamma ray or gamma-ray in Wiktionary, the free dictionary. Gamma rays are a form of electromagnetic radiation. Gamma Ray may also refer to: Gamma Ray
Gamma_ray_(disambiguation)
NASA space observatory designed to detect X-rays and gamma rays (1991–2000)
The Compton Gamma Ray Observatory (CGRO) was a space observatory detecting photons with energies from 20 keV to 30 GeV, in Earth orbit from 1991 to 2000
Compton_Gamma_Ray_Observatory
Observational astronomy performed with gamma rays
Gamma-ray astronomy is a subfield of astronomy where scientists observe and study celestial objects and phenomena in outer space which emit cosmic electromagnetic
Gamma-ray_astronomy
Quantitative study of the energy spectra of gamma-ray sources
Gamma-ray spectroscopy is the qualitative study of the energy spectra of gamma-ray sources, such as in the nuclear industry, geochemical investigation
Gamma_spectroscopy
EP by Gamma Ray, later Queens of the Stone Age
Gamma Ray is the debut EP by Gamma Ray, a musical project by former Kyuss guitarist Josh Homme, released in 1996 by Man's Ruin Records. After the breakup
Gamma_Ray_(EP)
Instrument for measuring gamma radiation
The study and analysis of gamma-ray spectra for scientific and technical use is called gamma spectroscopy, and gamma-ray spectrometers are the instruments
Gamma-ray_spectrometer
American astrophysicist (1934–2013)
program, designing and flying instruments to detect and measure X-rays and gamma-rays in space, primarily from the Sun. He was the first to suggest the
Kenneth_John_Frost
Gamma ray logging is a method of measuring naturally occurring gamma radiation to characterize the rock or sediment in a borehole or drill hole. It is
Gamma_ray_logging
Goods inspection system
Gamma-ray radiography systems capable of scanning trucks usually use cobalt-60 or caesium-137 as a radioactive source and a vertical tower of gamma detectors
Cargo_scanning
NASA satellite of the Explorer program
Swift Gamma-Ray Burst Explorer, is a NASA three-instrument space observatory for studying gamma-ray bursts (GRBs) and monitoring the afterglow in X-ray and
Neil Gehrels Swift Observatory
Neil_Gehrels_Swift_Observatory
Gamma rays with photon energies higher than 100 TeV
Ultra-high-energy gamma rays are gamma rays with photon energies higher than 100 TeV (0.1 PeV). They have a frequency higher than 2.42 × 1028 Hz and a
Ultra-high-energy_gamma_ray
Instrument that makes distant objects appear magnified
of telescopes that worked in a wide range of wavelengths from radio to gamma-rays. The first purpose-built radio telescope went into operation in 1937.
Telescope
Chemical reaction in which a compound is broken down by light
orbiting satellites detect an average of about one gamma-ray burst (GRB) per day. Because gamma-ray bursts are visible to distances encompassing most of
Photodissociation
Galaxy containing the Solar System
various gamma-ray detection missions have discovered 511-keV gamma rays coming from the general direction of the Galactic Center. These gamma rays are produced
Milky_Way
Astronomical object which emits bursts of gamma or x-rays at irregular intervals
A soft gamma repeater (SGR) is an astronomical object which emits large bursts of gamma-rays and X-rays at irregular intervals. It is conjectured that
Soft_gamma_repeater
Hypothetical black hole formed soon after the Big Bang
suggested that the observed spatial correlations in the unresolved gamma-ray and X-ray background radiations could be due to primordial black holes with
Primordial_black_hole
Full range of electromagnetic radiation frequencies
radio waves, microwaves, infrared, visible light, ultraviolet, X-rays, and gamma rays. The electromagnetic waves in each of these bands have different
Electromagnetic_spectrum
High-energy particle, mainly originating outside the Solar System
neutrinos and gamma rays from blazar TXS 0506+056 in 2018, active galactic nuclei also appear to produce cosmic rays. The term ray (as in optical ray) seems
Cosmic_ray
Hypothetical object
the gamma ray emissions that would have resulted would have made them readily noticeable long since. He noted that not even antimatter cosmic rays had
Antimatter_comet
amounts of gamma radiation could significantly affect the Earth's atmosphere and pose an existential threat to all life. Such a gamma-ray burst may have
Global_catastrophe_scenarios
Form of electromagnetic radiation
X-ray is a form of high-energy electromagnetic radiation with a wavelength shorter than those of ultraviolet rays and longer than those of gamma rays.
X-ray
Volunteer computing project
telescopes, and from a gamma-ray telescope. Neutron stars are detected by their pulsed radio and gamma-ray emission as radio and/or gamma-ray pulsars. They also
Einstein@Home
Types of celestial objects that can emit gamma-ray bursts
Gamma-ray burst progenitors are the types of celestial objects that can emit gamma-ray bursts (GRBs). GRBs show an extraordinary degree of diversity. They
Gamma-ray_burst_progenitors
Astrophysical phenomenon
long-duration gamma-ray bursts. If the relativistic jets are too brief and fail to penetrate the stellar envelope then a low-luminosity gamma-ray burst may
Supernova
This is a discography of Gamma Ray, a German heavy metal band formed in Hamburg in 1988. They have released eleven studio albums, four live albums, two
Gamma_Ray_discography
Low-yield thermonuclear weapon
sea level, the total radiation pulse energy which is composed of both gamma rays and neutrons is approximately 5% of the entire energy released; in neutron
Neutron_bomb
Passive radiation detection device
criticized for their inability to distinguish gamma rays originating from nuclear sources from gamma rays originating from a large variety of benign cargo
Radiation_portal_monitor
2008 single by Beck
"Gamma Ray" is a song by American rock musician Beck. It was released as the second single from his eighth studio album, Modern Guilt, on August 11, 2008
Gamma_Ray_(song)
Topics referred to by the same term
Gamma ray observatory or Gamma Ray Observatory can refer to: Any observatory used for gamma ray astronomy. The Compton Gamma Ray Observatory, an observatory
Gamma_ray_observatory
Mass extinction event c. 444 million years ago
effects of a galactic gamma-ray burst. A gamma-ray burst could also explain the rapid expansion of glaciers, since the high energy rays would cause ozone
Late Ordovician mass extinction
Late_Ordovician_mass_extinction
Gravitational-wave signal detected in 2017
an approximate angular direction to the source. Independently, a short gamma-ray burst (sGRB) of around 2 seconds, designated GRB 170817A, was detected
GW170817
American-Indian astronomer (born 1956)
(3) brown dwarfs and other sub-stellar objects, (4) soft gamma-ray repeaters, (5) gamma-ray bursts, and (6) optical transients. Kulkarni started off his
Shrinivas_Kulkarni
First interplanetary solar sail spacecraft
the variation in dust density while its Gamma-Ray Burst Polarimeter (GAP) measured the polarization of gamma-ray bursts during its six-month cruise. IKAROS
IKAROS
1965 play by Paul Zindel
The Effect of Gamma Rays on Man-in-the-Moon Marigolds is a play written by Paul Zindel, a playwright and science teacher. Zindel received the 1971 Pulitzer
The Effect of Gamma Rays on Man-in-the-Moon Marigolds
The_Effect_of_Gamma_Rays_on_Man-in-the-Moon_Marigolds
Particle physics experiment
the emission of a gamma ray. For those decays in which the neutrino and gamma ray are emitted in opposite directions, the gamma ray receives just enough
Goldhaber_experiment
Hypothetical invisible cosmic material
sensitivity. The Fermi Gamma-ray Space Telescope is searching for similar gamma rays. In 2009, an as yet unexplained surplus of gamma rays from the Milky Way's
Dark_matter
Type of neutron star with a strong magnetic field
emission of high-energy electromagnetic radiation, particularly X-rays and gamma rays. The existence of magnetars was proposed in 1992 by Robert Duncan
Magnetar
American rock band
touring guitarist. He later formed a new band called Gamma Ray, which released the eponymous Gamma Ray EP (1996), featuring "Born to Hula" and "If Only Everything"
Queens_of_the_Stone_Age
Effect of a nuclear explosion on electronic equipment
excludes optical (infrared, visible, ultraviolet) and ionizing (such as X-ray and gamma radiation) ranges. In military terminology, a nuclear warhead detonated
Nuclear_electromagnetic_pulse
Astronomy station in Hanle, India
is one of the world's highest located sites for optical, infrared, and gamma-ray telescopes. It is the tenth-highest optical telescope in the world. The
Indian Astronomical Observatory
Indian_Astronomical_Observatory
2005 studio album by Gamma Ray
the eighth full-length studio album from the German power metal band Gamma Ray, released in 2005. The band also released an LP version through their
Majestic_(Gamma_Ray_album)
Supernova remnant in the constellation Taurus
radiation from gamma rays to radio waves. At X-ray and gamma ray energies above 30 keV, the Crab Nebula is generally the brightest persistent gamma-ray source
Crab_Nebula
Collapsed core of a massive star
produces gravitational waves and is associated with kilonovae and short gamma-ray bursts. In 2017, the LIGO and Virgo interferometer sites observed GW170817
Neutron_star
Probability that a gamma ray interacts with matter
A gamma ray cross section is a measure of the probability that a gamma ray interacts with matter. The total cross section of gamma ray interactions is
Gamma_ray_cross_section
American physicist (1915–1990)
knowledge of scintillators to the design of the EGRET gamma-ray telescope of the Compton Gamma Ray Observatory named for fellow Nobel Laureate in Physics
Robert_Hofstadter
Material composed of antiparticles
annihilation, giving rise to different proportions of intense photons (gamma rays), neutrinos, and sometimes less-massive particle–antiparticle pairs. The
Antimatter
Harmful high-frequency radiation
waves are on the high-energy portion of the electromagnetic spectrum. Gamma rays, X-rays, and the higher energy ultraviolet part of the electromagnetic spectrum
Ionizing_radiation
The following is a list of significant gamma-ray bursts (GRBs) listed in chronological order. GRBs are named after the date on which they were detected:
List_of_gamma-ray_bursts
Possible large cosmic structure
Hercules–Corona Borealis Great Wall (HCB) or simply the Great Wall or the Great Gamma-Ray Burst Wall is a putative galaxy filament that, if confirmed, would be
Hercules–Corona Borealis Great Wall
Hercules–Corona_Borealis_Great_Wall
The history of gamma-ray burst research began with the serendipitous detection of a gamma-ray burst (GRB) on July 2, 1967, by the U.S. Vela satellites
History of gamma-ray burst research
History_of_gamma-ray_burst_research
1995 studio album by Gamma Ray
Land of the Free is the fourth studio album by German power metal band Gamma Ray, released in 1995. It is considered a concept album, telling a story of
Land of the Free (Gamma Ray album)
Land_of_the_Free_(Gamma_Ray_album)
X-ray pulsar in the constellation Gemini
Geminga (/ɡəˈmɪŋɡə/ gə-MING-gə) is a gamma ray and x-ray pulsar source thought to be a neutron star approximately 250 parsecs (around 800 light-years)
Geminga
Waves or particles moving through space
as radio waves, microwaves, infrared, visible light, ultraviolet, x-rays, and gamma radiation (γ) particle radiation consisting of particles of non-zero
Radiation
Scientific study of celestial objects
asteroids, and comets. Relevant phenomena include supernova explosions, gamma ray bursts, quasars, blazars, pulsars, and cosmic microwave background radiation
Astronomy
Spectroscopic technique
during the emission or absorption of a gamma ray. If a nucleus at rest emits a gamma ray, the energy of the gamma ray is slightly less than the natural energy
Mössbauer_spectroscopy
Triple star system in the constellation Sagittarius
core-collapse supernova with a small chance of producing a long-duration gamma-ray burst. The possibility of a supernova explosion from WR 104 having destructive
WR_104
Space observatory to study gamma rays
Imager (COSI) is a NASA SMEX astrophysics mission that will launch a soft gamma-ray telescope (0.2–5 MeV) in 2027. It is a wide-field compact Compton telescope
Compton Spectrometer and Imager
Compton_Spectrometer_and_Imager
Gamma ray detector
or Compton imager) is a gamma-ray detector which utilizes Compton scattering to determine the origin of the observed gamma rays. Compton cameras are usually
Compton_telescope
Fluctuation of spacetime on very small scales
X-ray and gamma-ray observations of quasars using NASA's Chandra X-ray Observatory, the Fermi Gamma-ray Space Telescope and ground-based gamma-ray observations
Quantum_foam
German power metal band
Ingo Schwichtenberg. By the time Hansen left Helloween in 1989 to form Gamma Ray, the band had evolved into a five-piece, with Michael Kiske taking over
Helloween
Rapid decrease in Earth's biodiversity
the Sun. Gamma ray bursts are fairly rare, occurring only a few times in a given galaxy per million years. It has been suggested that a gamma ray burst caused
Extinction_event
1999 studio album by Gamma Ray
Plant is the sixth full-length album from the German power metal band, Gamma Ray. The album was initially released in 1999, but was re-released along with
Power_Plant_(Gamma_Ray_album)
Type of stellar collision
matter of one or two milliseconds. The immediate event creates a short gamma-ray burst (sGRB) visible over hundreds of millions, or even billions of light-years
Neutron_star_merger
Radioactive isotope of Americium
^{2+}+\gamma ~59.5409~keV} } The principal α-decay energies are 85% 5.486 MeV, 13% 5.443 MeV, and 2% 5.388 MeV. The principal gamma ray is 59.5409
Americium-241
Ionizing radiation particle of two protons and two neutrons
sometimes leaves the parent nucleus in an excited state; the emission of a gamma ray then removes the excess energy. In contrast to beta decay, the fundamental
Alpha_particle
Imaging by sections or sectioning using a penetrative wave
based on the mathematical procedure tomographic reconstruction, such as X-ray computed tomography technically being produced from multiple projectional
Tomography
Quantity in relativistic physics
The Lorentz factor or Lorentz term (also known as the gamma factor) is a dimensionless quantity expressing how much the measurements of time, length,
Lorentz_factor
Physical model of propagating energy
radio waves, microwaves, infrared, visible light, ultraviolet, X-rays, to gamma rays. All forms of EMR travel at the speed of light in a vacuum and exhibit
Electromagnetic_radiation
Gamma 'bomb' debate, 1997 to 2009
debate over the possibility of "triggering" rapid energy releases, via gamma-ray emission, from 178m2Hf, a nuclear isomer of hafnium. The energy release
Hafnium_controversy
Attacks using radioactive material with intent of contamination of an area
where cobalt-59 is converted to cobalt-60 by neutron capture. Initially, gamma radiation of the nuclear fission products from an equivalent sized "clean"
Radiological_warfare
1991 American crewed spaceflight to deploy the Compton Gamma Ray Observatory
a six-day mission with the primary objective of launching the Compton Gamma Ray Observatory (CGRO), the second of the Great Observatories program which
STS-37
Comparison of a large range of energies
Berger, E. (27 February 2007). "The Prompt Gamma-Ray and Afterglow Energies of Short-Duration Gamma-Ray Bursts". The Astrophysical Journal. 670 (2):
Orders_of_magnitude_(energy)
American space and aeronautics agency
part of NASA's Medium Explorer program. The Fermi Gamma-ray Space Telescope (FGST) is another gamma-ray focused space observatory that was launched to low
NASA
Scintillator material
high-energy gamma ray detection. The Gamma-ray Transients Monitor (a space telescope), which tracks Gamma Ray Bursts (GRBs) and other bright gamma-ray transients
GAGG:Ce
Branch of particle physics concerning interactions between two photons
be created. Photon–photon interactions limit the spectrum of observed gamma-ray photons at moderate cosmological distances to a photon energy below around
Two-photon_physics
NASA space telescope launched in 1999
the Great Observatories, along with the Hubble Space Telescope, Compton Gamma Ray Observatory (1991–2000), and the Spitzer Space Telescope (2003–2020).
Chandra_X-ray_Observatory
European undersea neutrino detector
probing a wide variety of cosmic objects such as supernova remnants, gamma-ray bursts, supernovae and colliding stars. By identifying neutrinos from
KM3NeT
NASA mission to Mercury
Principal investigator: Scott Murchie / Johns Hopkins University Measured gamma-ray emissions from the surface of Mercury to determine the planet's composition
MESSENGER
Device that emits light via optical amplification
are called lasers (e.g. infrared lasers, ultraviolet lasers, X-ray lasers, gamma-ray lasers), whereas devices operating at microwave or lower radio frequencies
Laser
2015 detection made by LIGO interferometers
594 deg2. The Fermi Gamma-ray Space Telescope reported that its Gamma-Ray Burst Monitor (GBM) instrument detected a weak gamma-ray burst above 50 keV,
First observation of gravitational waves
First_observation_of_gravitational_waves
Supernova that ejects a large mass at unusually high velocity
expansion velocity. Hypernovae are one of the mechanisms for producing long gamma ray bursts (GRBs), which range from 2 seconds to over a minute in duration
Hypernova
American musician (born 1973)
continual disharmony, began considering forming his own band. He founded Gamma Ray, a group more centered on his unique style and tastes, in 1996. After
Josh_Homme
Method of eliminating background events in particle physics
events in high energy physics, experimental particle physics, gamma-ray spectroscopy, gamma-ray astronomy, experimental nuclear physics, and related fields
Electronic_anticoincidence
Indian-American astrophysicist
her research on gamma-ray astronomy and blazars, involving work based on the Compton Gamma Ray Observatory, VERITAS, Energetic Gamma Ray Experiment Telescope
Reshmi_Mukherjee
Theoretical upper limit on the energy of cosmic ray protons
background photons γ C M B , {\displaystyle \gamma _{\rm {CMB}},} relatively blueshifted by the speed of the cosmic rays, to produce pions through the Δ {\displaystyle
Greisen–Zatsepin–Kuzmin_limit
gamma-rays. The development of space observatories after 1960 allowed access to several bands impossible to observe from the ground, including X-rays
History_of_the_telescope
Diagnostic imaging test in nuclear medicine
scintigraphy, although they also use gamma cameras to detect internal radiation. Scintigraphy is unlike a diagnostic X-ray where external radiation is passed
Scintigraphy
Galaxy in the constellation Hercules
an elliptical galaxy with a spectrum extending to the highest energy gamma rays. It is a blazar or BL Lac object, which is an active galactic nucleus
Markarian_501
Record-breaking gamma-ray burst
gamma-ray burst (GRB) jointly discovered by the Neil Gehrels Swift Observatory and the Fermi Gamma-ray Space Telescope on October 9, 2022. The gamma-ray
GRB_221009A
identification device (RID or RIID) is a small, lightweight, portable gamma-ray spectrometer used for the detection and identification of radioactive
Radionuclide identification device
Radionuclide_identification_device
Greatest energy a photon scattered on an electron can transfer to it
In gamma-ray spectrometry, the Compton edge is a feature of the measured gamma-ray energy spectrum that results from Compton scattering in the detector
Compton_edge
First astronomical CubeSat funded by Taiwan Space Agency
The Gamma-ray Transients Monitor (GTM) is the first space astronomical telescope of Taiwan. It is a secondary payload on board Formosat-8B (FS-8B), which
Gamma-ray_Transients_Monitor
Emission of secondary X-rays from a material excited by high-energy X-rays
by being bombarded with high-energy X-rays or gamma rays. When a material is illuminated with high-energy X-rays, its atoms can become excited and emit
X-ray_fluorescence
Aftermath of a neutron star merger
was detected on June 3, 2013, as short gamma-ray burst GRB 130603B by instruments on board the Swift Gamma-Ray Burst Explorer and KONUS/WIND spacecraft
Kilonova
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