Pi of the Sky – all-sky, real-time search for fast optical transients

Burd, Aleksander; Ćwiok, M.; Czyrkowski, H.; Dąbrowski, R.; Dominik, W.; Grajda, Marcin; Husejko, M.; Jegier, M.; Kalicki, Arkadiusz; Kasprowicz, G.; Kierzkowski, Krzysztof; Krupska, K.; Kwiecinska, K.; Mankiewicz, L.; Nawrocki, K.; Pilecki, B.; Piotrowski, L. W.; Poźniak, Krzysztof T.; Romaniuk, Ryszard S.; Salanski, Rafal; Sokołowski, M.; Szczygiel, D.; Wrochna, G.; Zabołotny, W.

doi:10.1016/j.newast.2005.02.002

Cited by 98 publications

(57 citation statements)

References 14 publications

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“…A real-time analysis of the data stream, based on a multi-level triggering system, allows discoveries of GRB optical counterparts independently of satellite experiments (Burd et al 2005;Małek et al 2010). This approach resulted in the autonomous detection of the naked-eye burst GRB080319B at its very beginning (Racusin et al 2008).…”

Section: The "Pi Of the Sky" Projectmentioning

confidence: 99%

Constraints on the optical precursor to the naked-eye burst GRB080319B from “Pi of the Sky” observations

Piotrowski

2012

A&A

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I present the results of the search for an optical precursor to the naked-eye burst -GRB080319B, which reached 5.87 m 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 min prior to the explosion, thus provided crucial data for the precursor search. No signal within 3σ limit was found. A limit of 12 m (V-band equivalent) was set based on the data combined from two cameras, the most robust limit to my knowledge for this precursor.

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Section: The "Pi Of the Sky" Projectmentioning

confidence: 99%

Constraints on the optical precursor to the naked-eye burst GRB080319B from “Pi of the Sky” observations

Piotrowski

2012

A&A

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“…All data gathered by the "Pi of the Sky" prototype located in Chile are stored in publicly accessible databases 1 . Currently three databases are available: Access to databases is through a user-friendly web interface, which allows to select objects according to their type, magnitude, coordinates etc, displaying their light curves and other properties.…”

Section: The "Pi Of the Sky" Datamentioning

confidence: 99%

“…The "Pi of the Sky" [1] is a system of wide field of view robotic telescope designed for efficient search for astrophysical phenomena varying on scales from seconds to months, especially for prompt optical counterparts of Gamma Ray Bursts (GRBs). The design of the apparatus allows to monitor a large fraction of the sky with a range of 12 m − 13 m and time resolution of the order of 1 -10 seconds.…”

Section: Introductionmentioning

confidence: 99%

Hunting for Gamma Ray Bursts with Pi of the Sky telescopes in Chile and Spain

Siudek¹,

Batsch²,

Czyrkowski³

et al. 2012

Proceedings of Gamma-Ray Bursts 2012 Conference — PoS(GRB 2012)

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Pi of the Sky is a system of wide field-of-view robotic telescopes which search for short timescale astrophysical phenomena, especially for prompt optical GRB emission. The system is designed for autonomous operation, follows the predefined observing strategy and adopts it to the actual conditions. Simultaneous observations from locations in Chile and Spain allow a systematic search for optical transients of cosmological origin. Accurate analysis of data arising from a wide-field system like Pi of the Sky is a real challenge because of a number of factors that can influence the measurements. We have developed a set of dedicated algorithms which remove poor quality measurements, improve photometric accuracy and allow us to reach uncertainties as low as 0.015-0.02 mag.

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“…These are -ASAS -the automated survey, V filter, Pojmanski (2002), http://www.astrouw.edu.pl/asas/ -OMC -the OMC camera onboard the INTEGRAL satellite, using the V filter, Mas -Hesse et al (2004), https://sdc. laeff.inta.es/omc/ -Pi of the sky -the automated telescope, unfiltered, Burd et al (2005), http://grb.fuw.edu.pl/pi/ Sixteen new minima times were derived from these surveys, and some of the published ones were computed again (see Table 1). Our new minima times were observed in the Ondřejov observatory with the 65-cm telescope.…”

Section: V456 Ophmentioning

confidence: 99%

V456 Ophiuchi and V490 Cygni: Systems with the shortest apsidal-motion periods

Zasche

Wolf

2011

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Our main aim is the first detailed analysis of the two eclipsing binaries V456 Oph and V490 Cyg. The system V456 Oph has been studied both photometrically via an analysis of its light curve observed by the INTEGRAL/OMC and by the period analysis of all available times of minima. V490 Cyg has been studied by means of a period analysis only. Many new times of minima for both systems have recently been observed and derived. This allows us for the first time to study in detail the processes that affect both binaries. The main result is the discovery that both systems have eccentric orbits. For V456 Oph we deal with the eccentric eclipsing binary system with the shortest orbital period known (about 1.016 day), while the apsidal motion period is about 23 years. V490 Cyg represents the eclipsing system with the shortest apsidal motion period (about 18.8 years only). The two components of V456 Oph are probably of spectral type F. We compare and discuss the V456 Oph results from the light curve and the period analysis, but a more detailed spectroscopy is needed to confirm the physical parameters of the components more precisely.

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Pi of the Sky – all-sky, real-time search for fast optical transients

Cited by 98 publications

References 14 publications

Constraints on the optical precursor to the naked-eye burst GRB080319B from “Pi of the Sky” observations

Constraints on the optical precursor to the naked-eye burst GRB080319B from “Pi of the Sky” observations

Hunting for Gamma Ray Bursts with Pi of the Sky telescopes in Chile and Spain

V456 Ophiuchi and V490 Cygni: Systems with the shortest apsidal-motion periods

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