gamma ray burst detection
Gamma-Ray Burst Progenitors
... the detection of different observational manifestations of compact object ...by detection route in the lower ...the detection of a gravitational wave or short-GRB ...
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Radio constraints on heavily obscured star formation within dark gamma-ray burst host galaxies
... The launch of the Swift satellite (Gehrels et al. 2004) with its onboard X-Ray Telescope has made it possible to unambigu- ously identify dust-obscured GRBs and accurately determine their position, and large ...
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Gamma-Ray Burst Early Optical Afterglow Modelling
... The Liverpool Telescope (LT) is a robotic 2m class Cassegrain telescope, which has been used to pioneer early optical detections of GRB afterglows. Along with the stan- dard optical follow up capabilities, the LT has had ...
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Simulation and physical model based gamma-ray burst afterglow analysis
... In the ISM case, β ˆ ≈ 1 . 15, in the stellar-wind case, β ˆ ≈ 0 . 92. The late-time non-relativistic solution primary applies to ra- dio observations (e.g. Waxman et al., 1998), since emission in higher frequency bands ...
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Low-resolution spectroscopy of gamma-ray burst optical afterglows: Biases in the swift sample and characterization of the absorbers
... uitous detection of strong Mg i absorption also indicates that a substantial quantity of neutral gas in GRB-DLAs is located at distances exceeding 100 pc (Prochaska et ...
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Far infrared observations of an unbiased sample of gamma ray burst host galaxies
... Many properties of GRBs are useful for accomplishing the above task. Their extremely high luminosity at gamma-ray wavelengths allows for their detection out to very high redshift, with minimal ...
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Polarized emission from Gamma-Ray Burst jets
... of Gamma-Ray Bursts ...breaks: Gamma-ray bursts are produced in ultra-relativistic ...recent detection of optical circular polarization in GRB ...
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Probing dust-obscured star formation in the most massive gamma-ray burst host galaxies
... We have observed a subpopulation of massive GRB hosts that had not yet been observed previously in radio wavelengths. Our observations do not add any GRB host to the known sample of radio-detected hosts. Our selection ...
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Far-infrared observations of an unbiased sample of gamma-ray burst host galaxies
... Many properties of GRBs are useful for accomplishing the above task. Their extremely high luminosity at gamma-ray wavelengths allows for their detection out to very high redshift, with minimal ...
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Search for gravitational waves associated with the gamma ray burst GRB030329 using the LIGO detectors
... FIG. 4 (color). Examples of corrgram images. The horizontal axes are time (linearly scaled) and the vertical axes are integra- tion length (logarithmically scaled). The color axis, an indicator of the excess correlation, ...
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Probing gamma-ray burst environments with time variability: ULTRASPEC fast imaging of GRB 080210
... the burst, its extended activity could heat the environment or produce new outflows, giving rise to a detectable component of emission which, like any accretion-powered source, would be variable (Rees & ...
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The gamma-ray burst afterglow modeling project : foundational statistics and absorption & extinction models
... PROMPT array at Cerro Tololo, Chile, beginning 133 seconds after the Swift trig- ger. We took exposures ranging between 10 and 80 seconds in duration through Johnson-Cousins B, V , R and I filters for the next 42 minutes ...
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Investigating a population of infrared bright gamma ray burst host galaxies
... In theory, using these data, it is possible to calculate the fraction of low redshift and massive, dusty GRB hosts that have been missed in previous follow up studies. This is primarily true for low redshift galaxies. As ...
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Discovery of the X-Ray Afterglow of the Gamma-Ray Burst of February
... of gamma-ray bursts is recognised to be one of the major challenges of high energy ...of gamma-rays are isotropically distributed in the sky, but inhomogeneously distributed in space, with a deficit ...
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Detection of three gamma ray burst host galaxies ATz∼ 6
... The power of GRB selection is that spectroscopy of the afterglows can provide detailed information about the gas and dust properties of the hosts. In this instance, it tells us that all three galaxies have low ...
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Instruments optimizations for low energy Gamma-ray detection
... The e-ASTROGAM Tracker is a double-sided strip detectors (DSSD) that comprises 5600 DSSDs arranged in 56 layers. It is divided in four units of 5x5 DSSDs, the detectors being wire bonded strip to strip to form 2-D ...
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On The Origin Of Unidentified EGRET Gamma-Ray Sources
... unidentified gamma-ray sources and radio pulsars are expected – and consequently found ...established gamma-ray pulsars, so no new physical assumptions are implicated from such ...in ...
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A four-year \u3cem\u3eXMM-Newton/Chandra\u3c/em\u3e monitoring campaign of the Galactic centre: analysing the X-ray transients
... Based on statistical arguments, Wijnands et al. (2006a) ar- gued that it is unlikely that all these objects are viewed at high inclination (thereby reducing their observed X-ray emission) and that most of them ...
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Gamma-ray satellites Fermi Gamma-ray Space Telescope
... Test how gamma-ray photons of different energy interact in the tracker / calorimeter. http://fermi.sonoma.edu/multimedia/latsim/simulator.php.[r] ...
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GRAINE project: precise gamma-ray observations with balloon-borne emulsion telescope
... The aim of the GRAINE 2015 experiment was to demon- strate the flight performance of the middle-scale telescope. The payload consisted of the emulsion telescope, star cam- eras, and a pressure vessel gondola [21]. Figure ...
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