scholarly journals Follow the BAT: Monitoring Swift BAT FoV for Prompt Optical Emission from Gamma-ray Bursts

2011 ◽  
Author(s):  
T. N. Ukwatta ◽  
J. Linnemann ◽  
K. S. Dhuga ◽  
N. Gehrels ◽  
J. E. McEnery ◽  
...  
Keyword(s):  
Gamma Ray ◽  
Optical Emission ◽  
Gamma Ray Bursts

scholarly journals GRB 090727 AND GAMMA-RAY BURSTS WITH EARLY-TIME OPTICAL EMISSION

2013 ◽  
Vol 772 (1) ◽  
pp. 73 ◽  
Author(s):  
D. Kopač ◽  
S. Kobayashi ◽  
A. Gomboc ◽  
J. Japelj ◽  
C. G. Mundell ◽  
...  
Keyword(s):  
Gamma Ray ◽  
Early Time ◽  
Optical Emission ◽  
Gamma Ray Bursts

scholarly journals Master Robotic Net

2010 ◽  
Vol 2010 ◽  
pp. 1-6 ◽  
Author(s):  
Vladimir Lipunov ◽  
Victor Kornilov ◽  
Evgeny Gorbovskoy ◽  
Nikolaj Shatskij ◽  
Dmitry Kuvshinov ◽  
...  
Keyword(s):  
Dark Energy ◽  
Solar System ◽  
Gamma Ray ◽  
Optical Emission ◽  
Gamma Ray Bursts ◽  
Sky Survey ◽  
Single Night

The main goal of the MASTER-Net project is to produce a unique fast sky survey with all sky observed over a single night down to a limiting magnitude of 19-20. Such a survey will make it possible to address a number of fundamental problems: search for dark energy via the discovery and photometry of supernovae (including SNIa), search for exoplanets, microlensing effects, discovery of minor bodies in the Solar System, and space-junk monitoring. All MASTER telescopes can be guided by alerts, and we plan to observe prompt optical emission from gamma-ray bursts synchronously in several filters and in several polarization planes.

scholarly journals Exceptionally bright optical emission from a rare and distant gamma-ray burst

2021 ◽  
Author(s):  
Gor Oganesyan ◽  
Sergey Karpov ◽  
Martin Jelinek ◽  
Gregory Beskin ◽  
Samuele Ronchini ◽  
...  
Keyword(s):  
Gamma Ray ◽  
Massive Stars ◽  
Optical Emission ◽  
Gamma Ray Bursts ◽  
Additional Component ◽  
Relativistic Jets ◽  
X Ray ◽  
Forward Shock ◽  
Multi Wavelength ◽  
Wavelength Emission

Abstract Long gamma-ray bursts (GRBs) are produced by the dissipation of ultra-relativistic jets launched by newly-born black holes after the collapse of massive stars. Right after the luminous and highly variable gamma-ray emission, the multi-wavelength afterglow is released by the external dissipation of the jet in circumburst medium. We report the discovery of a very bright (10 mag) optical emission 28 s after the explosion of the extremely luminous and energetic GRB 210619B located at redshift 1.937. Early multi-filter observations allowed us to witness the end of the shock wave propagation into the GRB ejecta. We observed the spectral transition from a bright reverse to the forward shock emission, demonstrating that the early and late GRB multi-wavelength emission is originated from a very narrow jet propagating into an unusually rarefied interstellar medium. We also find evidence of an additional component of radiation, coming from the jet wings which is able explain the uncorrelated optical/X-ray emission.

scholarly journals GAMMA-RAY BURSTS — OBSERVATIONS

2010 ◽  
Vol 19 (06) ◽  
pp. 977-984
Author(s):  
N. GEHRELS ◽  
J. K. CANNIZZO
Keyword(s):  
Gamma Ray ◽  
Optical Emission ◽  
High Energy ◽  
Gamma Ray Bursts ◽  
Medium Energy ◽  
Host Galaxies ◽  
Data Set ◽  
Spectral Signatures ◽  
High Energy Emission ◽  
Combined Data

We are in an exciting period of discovery for gamma-ray bursts. The Swift observatory is detecting 100 bursts per year, providing arcsecond localizations and sensitive observations of the prompt and afterglow emission. The Fermi observatory is observing 250 bursts per year with its medium-energy GRB instrument and about 10 bursts per year with its high-energy LAT instrument. In addition, rapid-response telescopes on the ground are providing new capabilities to study optical emission during the prompt phase and spectral signatures of the host galaxies. The combined data set is enabling great advances in our understanding of GRBs including afterglow physics, short burst origin, and high-energy emission.

scholarly journals A Search for Early Optical Emission from Short- and Long-Duration Gamma-Ray Bursts

2001 ◽  
Vol 554 (2) ◽  
pp. L159-L162 ◽  
Author(s):  
Robert Kehoe ◽  
Carl Akerlof ◽  
Richard Balsano ◽  
Scott Barthelmy ◽  
Jeff Bloch ◽  
...  
Keyword(s):  
Gamma Ray ◽  
Optical Emission ◽  
Gamma Ray Bursts ◽  
Long Duration

INVERSE COMPTON EMISSION FROM THE PROMPT OPTICAL EMISSION REGION IN GAMMA-RAY BURSTS

2009 ◽  
Vol 708 (2) ◽  
pp. 1357-1365 ◽  
Author(s):  
X. H. Zhao ◽  
Z. G. Dai ◽  
T. Liu ◽  
J. M. Bai ◽  
Z. Y. Peng
Keyword(s):  
Gamma Ray ◽  
Optical Emission ◽  
Gamma Ray Bursts ◽  
Emission Region ◽  
Inverse Compton

THE UFFO SLEWING MIRROR TELESCOPE FOR EARLY OPTICAL OBSERVATION FROM GAMMA RAY BURSTS

2013 ◽  
Vol 28 (02) ◽  
pp. 1340003 ◽  
Author(s):  
◽  
JIWOO NAM ◽  
S. AHMAD ◽  
K. AHN ◽  
P. BARRILLON ◽  
...  
Keyword(s):  
Fast Moving ◽  
Gamma Ray ◽  
Optical Emission ◽  
Early Observation ◽  
Optical Path ◽  
Gamma Ray Bursts ◽  
Optical Observation ◽  
Space Observatory ◽  
Development Status ◽  
Mirror Telescope

While some space born observatories, such as SWIFT and FERMI, have been operating, early observation of optical after grow of GRBs is still remained as an unexplored region. The Ultra-Fast Flash Observatory (UFFO) project is a space observatory for optical follow-ups of GRBs, aiming to explore the first 60 seconds of GRBs optical emission. Using fast moving mirrors to redirect our optical path rather than slewing the entire spacecraft, UFFO is utilized to catch early optical emissions from GRB within 1 sec. We have developed the UFFO Pathfinder Telescope which is going to be on board of the Lomonosov satellite and launched in middle of 2012. We will discuss about scientific potentials of the UFFO project and present the payload development status, especially for Slewing Mirror Telescope which is the key instrument of the UFFO-pathfinder mission.

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