Constraints on the optical precursor to the naked-eye burst GRB080319B from Pi of the Sky observations
arXiv:1202.5322 · doi:10.1051/0004-6361/201118650
Abstract
I present the results of the search for an optical precursor to the naked-eye burst - GRB080319B, which reached 5.87m optical peak luminosity in the "Pi of the Sky" data. A burst of such a high brightness could have been preceded by an optical precursor luminous enough to be in detection range of our experiment. The "Pi of the Sky" cameras observed the coordinates of the GRB for about 20 minutes prior to the explosion, thus provided crucial data for the precursor search. No signal within 3 sigma limit was found. A limit of 12m (V-band equivalent) was set based on the data combined from two cameras, the most robust limit to my knowledge for this precursor.
arXiv commentAccepted for publication in Astronomy and Astrophysics on 07 February 2012
References in corpus (16)
- A Unified Approach to the Classical Statistical Analysis of Small Signals
- Observation of contemporaneous optical radiation from a gamma-ray burst
- A gamma ray burst with small contamination
- A Link between Prompt Optical and Prompt Gamma-Ray Emission in Gamma-Ray Bursts
- The expected thermal precursors of gamma-ray bursts in the internal shock model
- Energy input and response from prompt and early optical afterglow emission in gamma-ray bursts
- Precursor activity in bright long BATSE gamma-Ray Bursts
- "Pi of the Sky" - all-sky, real-time search for fast optical transients
- Quark-Nova
- A New Determination of the High Redshift Type Ia Supernova Rates with the Hubble Space Telescope Advanced Camera for Surveys
- Fast optical variability of Naked-Eye Burst - manifestation of periodic activity of internal engine
- What did we learn from gamma-ray burst 080319B ?
- Gamma-Ray Burst at the extreme: "the naked-eye burst" GRB 080319B
- Precursors of gamma-ray bursts: a clue to the burster's nature
- Precursor Plerionic Activity and High Energy Gamma-Ray Emission in the Supranova Model of Gamma-Ray Bursts
- Optical Limits on Precursor Emission from Gamma-Ray Bursts with Known Redshift