Ground-based complex for detection and investigation of fast optical transients in wide field

Molinari, E.; Beskin, G.; Bondar, S.; Карпов, С.; Plokhotnichenko, V. L.; Debur, V.; Greco, G.; Bartolini, C.; Гуарниери, А.; Piccioni, A.

doi:10.1117/12.788448

Cited by 10 publications

(14 citation statements)

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“…Both variants use the CANON EF85 F/1.2 lens as the main objective and celostate mirrors for fast (faster than 0.3 s) repointing in the ±20°region of the sky. The optical design of the first variant is analogous to the design used in the FAVOR [16] and TORTORA [21] systems, but with a non-scaling image intensifier, see Figure 2. For the second variant, the design is simplified, and lacks the image intensifier and the transmission optics.…”

Section: Mini-megatortora As a Megatortora Prototypementioning

confidence: 99%

“…In addition, a two-telescope scheme [3,15] has been proposed which is able to study these transients within a very short time after detection. In accordance with these ideas, we created the prototype of the FAVOR fast wide-field camera [16] and the TORTORA camera as part of the TORTOREM two-telescope complex [21], and we have operated them over a period of several years.…”

Section: Introductionmentioning

confidence: 99%

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Status and perspectives of Mini-MegaTORTORA wide-field monitoring system with high temporal resolution

Карпов¹,

Beskin²,

Bondar³

et al. 2013

EAS Publications Series

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Abstract. Here we briefly summarize our long-term experience of constructing and operating wide-field monitoring cameras with sub-second temporal resolution to look for optical components of GRBs, fast-moving satellites and meteors. The general hardware requirements for these systems are discussed, along with algorithms for real-time detection and classification of various kinds of short optical transients. We also give a status report on the next generation, the MegaTORTORA multi-objective and transforming monitoring system, whose 6-channel (Mini-MegaTORTORA-Spain) and 9-channel prototypes (Mini-MegaTORTORA-Kazan) we have been building at SAO RAS. This system combines a wide field of view with subsecond temporal resolution in monitoring regime, and is able, within fractions of a second, to reconfigure itself to follow-up mode, which has better sensitivity and simultaneously provides multi-color and polarimetric information on detected transients.

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Section: Mini-megatortora As a Megatortora Prototypementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Status and perspectives of Mini-MegaTORTORA wide-field monitoring system with high temporal resolution

Карпов¹,

Beskin²,

Bondar³

et al. 2013

EAS Publications Series

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“…Then the nature of the transient may be guessed based on this information and by comparing its position and time of appearance with the catalogue of satellite passes over the site. At that point, any event not showing signatures of motion and not present in the satellites database, may become the targets of a follow-up and detailed investigation by robotic telescopes [17].…”

Section: Region Of Expectation Region Of Expectationmentioning

confidence: 99%

“…Moreover, a two-telescope scheme [15,16], able to study such transients in a very short time after detection, has been proposed. According to these ideas, we created the prototype fast wide-field camera called FAVOR [14] and the TORTORA camera as part of the TORTOREM [17] two-telescope complex, and operated them over several years.…”

Section: Introductionmentioning

confidence: 99%

Wide and Fast: Monitoring the Sky in Subsecond Domain with the FAVOR and TORTORA Cameras

Карпов

Beskin

Bondar³

et al. 2010

Advances in Astronomy

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In order to detect and investigate short stochastic optical flares from a number of variable astrophysical objects (GRBs, SNe, flare stars, CVs, X-Ray binaries) of unknown localizations as well as near-earth objects (NEOs), both natural and artificial, it is necessary to perform the systematic monitoring of large regions of the sky with high temporal resolution. Here we discuss the criteria for a system that is able to perform such a task and describe two cameras we created for wide-field monitoring with high temporal resolution-FAVOR and TORTORA. Also, we describe basic principles of real-time data processing for the high frame rates needed to achieve subsecond temporal resolution on a typical hardware.

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“…Later, however, we finished the design of a wide-field camera equipped with image intensifier and a fast low-noise CCD. The prototype of such a camera, FAst Variability Optical Registrator (FAVOR), is operated since 2003 near Russian 6-m telescope [2,20], while similar Telescopio Ottimizzato per la Ricerca dei Transienti Ottici RApidi (TORTORA) is mounted since 2006 on top of Italian REM telescope [21] in La-Silla Observatory (ESO, Chile) as a part of a TORTOREM [22] two-telescope complex [23]. The latter camera has detected and studied with unprecedented temporal resolution the optical emission of a Naked-Eye Burst [24][25][26].…”

Section: Introductionmentioning

confidence: 99%

From TORTORA to MegaTORTORA—Results and Prospects of Search for Fast Optical Transients

Beskin

Bondar²,

Карпов

et al. 2010

Advances in Astronomy

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To study short stochastic optical flares of different objects (GRBs, SNs, etc.) of unknown localizations as well as NEOs it is necessary to monitor large regions of sky with high-time resolution. We developed a system consisting of widefield camera with field of view of 400–600 sq.deg. which uses TV-CCD with 0.13 s temporal resolution to record and classify optical transients, and a fast robotic telescope aimed to perform their spectroscopic and photometric investigation just after detection. Such two-telescope complex, combining wide-field camera TORTORA and robotic telescope REM, operated from May 2006 at La Silla ESO observatory. Some results of its operation, including first high time resolution study of optical transient accompanying GRB and discovery of its fine time structure, are presented. Also, prospects for improving the efficiency of such observations are given, and a project of a next generation wide field monitoring system, the MegaTORTORA, is described.

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Ground-based complex for detection and investigation of fast optical transients in wide field

Cited by 10 publications

References 0 publications

Status and perspectives of Mini-MegaTORTORA wide-field monitoring system with high temporal resolution

Status and perspectives of Mini-MegaTORTORA wide-field monitoring system with high temporal resolution

Wide and Fast: Monitoring the Sky in Subsecond Domain with the FAVOR and TORTORA Cameras

From TORTORA to MegaTORTORA—Results and Prospects of Search for Fast Optical Transients

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