Conference paper
Ultra-Fast Flash Observatory (uffo) for Observation of Early Photons from Gamma Ray Bursts
Ewha Womans University1
National United University Taiwan2
Yonsei University3
Lomonosov Moscow State University4
University of Paris-Sud - University of Paris XI5
National Space Institute, Technical University of Denmark6
Astrophysics, National Space Institute, Technical University of Denmark7
Instituto de Astrofísica de Andalucía8
National Taiwan University9
Korea Advanced Institute of Science and Technology10
University of Valencia11
University of California at San Diego12
...and 2 moreOne of the least documented and understood aspects of gamma-ray bursts (GRB) is the rise phase of the optical light curve. The Ultra-Fast Flash Observatory (UFFO) is an effort to address this question through extraordinary opportunities presented by a series of space missions including a small spacecraft observatory.
The UFFO is equipped with a fast-response Slewing Mirror Telescope (SMT) which uses rapidly moving mirror or mirror arrays to redirect the optical beam rather than slewing the entire spacecraft to aim the optical instrument at the GRB position. The UFFO will probe the early optical rise of GRBs with a sub-second response, for the first time, opening a completely new frontier in GRB and transient studies, the only GRB system which can point and measure on these time scales.
Its fast response measurements of the optical emission of dozens of GRB each year will provide unique probes of the burst mechanism, shock breakouts in core-collapse supernovae, tidal disruptions around black holes, test Lorentz violation, be the electromagnetic counterpart to neutrino and gravitational wave signatures of the violent universe, and verify the prospect of GRB as a new standard candle potentially opening up the z>10 universe.
As a first step, we employ a motorized slewing stage in SMT which can point to the event within 1s after X-ray trigger, in the UFFO-pathfinder payload onboard the Lomonosov satellite to be launched in 2012. The pathfinder was a small and limited, yet remarkably powerful micro-observatory for rapid optical response to bright gamma-ray bursts, the first part of our GRB and rapid-response long-term program.
We describe the early photon science, the space mission of UFFO-pathfinder, and our plan for the next step.
Language: | English |
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Publisher: | World Scientific |
Year: | 2013 |
Pages: | 259-273 |
Proceedings: | First Lecospa Symposium |
ISBN: | 1299281206 , 9814449369 , 9814449377 , 9781299281202 , 9789814449366 and 9789814449373 |
Types: | Conference paper |
DOI: | 10.1142/9789814449373_0023 |
ORCIDs: | Brandt, Søren , Budtz-Jørgensen, Carl and Lund, Niels |