Wide-field subsecond temporal resolution optical monitoring systems for the detection and study of cosmic hazards

Beskin, G.; Карпов, С.; Plokhotnichenko, V. L.; Bondar, S.; Perkov, A.; Ivanov, E.; Katkova, E.; Sasyuk, V.; Shearer, A.

doi:10.3367/ufne.0183.201308i.0888

Cited by 10 publications

(5 citation statements)

References 10 publications

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“…The Mini-MegaTORTORA (MMT-9) is a 9channel monitoring system with near 900 square degrees field and a temporal resolution of 0.1 seconds, the magnitude limit down to m V = 11 for stars, and 16 ′′ pixel size (Beskin et al 2013(Beskin et al , 2014(Beskin et al , 2017Karpov et al 2017a). It is in operation at Special Astrophysical Observatory, Russia, since mid-2014, and now continuously monitors the sky looking for fast optical transients of various nature, from artificial satellites (Karpov et al 2016a) to gamma-ray bursts (Karpov et al 2017b).…”

Section: Mini-megatortora and Favor Camerasmentioning

confidence: 99%

Two-Station Meteor Observations With Mini-Megatortora and Favor Wide-Field Monitoring Systems

Карпов

Орехова

Beskin

et al. 2019

RMxAC

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Here we present the results of our four years long observations of meteors with Mini-MegaTORTORA wide-field monitoring system with sub-second temporal resolution. Over this period, we detected and catalogued more than 175000 faint meteors with magnitudes down to 8-10 mag and angular velocities up to 40 deg/s. Recently, we started double-station observations using Mini-MegaTORTORA together with reconstructed FAVOR camera on 3.8 km baseline. This setup allows to observe tens of faint meteors per night. We present the preliminary results of such observations.

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Section: Mini-megatortora and Favor Camerasmentioning

confidence: 99%

Two-Station Meteor Observations With Mini-Megatortora and Favor Wide-Field Monitoring Systems

Карпов

Орехова

Beskin

et al. 2019

RMxAC

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“…In this regard, we also present here (Beskin et al, this issue) one of the ideas for the upgrade. The idea has already been introduced by some of the authors of this paper in [31] within the framework of the SAINT photometric project. We are sure that the upgrade of the wide-field observing facilities as proposed by the SAINT will fundamentally magnify the scientific output of the EXPLANATION project.…”

Section: Discussionmentioning

confidence: 99%

EXPLANATION: Exoplanet and Transient Event Investigation Project—Optical Facilities and Solutions

et al. 2022

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Over the past decades, the achievements in astronomical instrumentation have given rise to a number of novel advanced studies related to the analysis of large arrays of observational data. One of the most famous of these studies is a study of transient events in the near and far space and a search for exoplanets. The main requirements for such kinds of projects are a simultaneous coverage of the largest possible field of view with the highest possible detection limits and temporal resolution. In this study, we present a similar project aimed at creating an extensive, continuously updated survey of transient events and exoplanets. To date, the core of the project incorporates several 0.07–2.5 m optical telescopes and the 6-m BTA telescope of the Special Astrophysical Observatory of RAS (Russia), a number of other Russian observatories and the Bonhyunsan observatory of the Korea Astronomy and Space Science Institute (South Korea). Our attention is mainly focused on the description of two groups of small, wide-angle optical telescopes for primary detection. All the telescopes are originally designed for the goals of the project and may be of interest to the scientific community. A description is also given for a new, high-precision optical spectrograph for the Doppler studies of transient and exoplanet events detected within the project. We present here the philosophy, expectations and first results obtained during the first year of running the project.

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“…It is all the more important to look for signatures of similar phenomena in the optical range using wide-angle monitoring of high temporal resolution. Based on the above considerations, and on the experience of developing and using the FAVOR, TORTORA, Mini-MegaTORTORA tools, we proposed the concept of a multi-telescope complex with high temporal resolution for wide-angle monitoring of the celestial sphere-SAINT (Small Aperture Imaging Network Telescope) [62,[66][67][68] using telescopes with a diameter of 30-50 cm, with the limiting magnitude at the level of single-component instruments (see Figure 1 and Table A1 in the Appendix A) and capable of detecting and investigating non-stationary objects at times from milliseconds to months-years. This paper is devoted to the development of this project using modern devices, the choice of the design of the complex, its components, mode of operation, and the assessment of its parameters.…”

Section: Introductionmentioning

confidence: 99%

SAINT (Small Aperture Imaging Network Telescope)—A Wide-Field Telescope Complex for Detecting and Studying Optical Transients at Times from Milliseconds to Years

Beskin,

Biryukov,

Gutaev

et al. 2023

Photonics

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In this paper, we present a project of a multi-channel wide-field optical sky monitoring system with high temporal resolution—Small Aperture Imaging Network Telescope (SAINT)— mostly built from off-the-shelf components and aimed towards searching and studying optical transient phenomena on the shortest time scales. The instrument consists of twelve channels each containing 30 cm (F/1.5) GENON Max objectives mounted on separate ASA DDM100 mounts with pointing speeds up to 50 deg/s. Each channel is equipped with a 4128 × 4104 pixel Andor Balor sCMOS detector and a set of photometric griz filters and linear polarizers. At the heart of every channel is a custom-built reducer-collimator module allowing rapid switching of an effective focal length of the telescope—due to it the system is capable of operating in either wide-field survey or narrow-field follow-up modes. In the first case, the field of view of the instrument is 470 square degrees (39 sq.deg. for a single channel) and the detection limits (5σ level at 5500 Å) are 12.5, 16.5, 19, 21 with exposure times of 20 ms, 1 s, 30 s and 20 min, correspondingly. In the second, follow-up (e.g., upon detection of a transient of interest by either a real-time detection pipeline, or upon receiving an external trigger) regime, all telescopes are oriented towards the single target, and SAINT becomes an equivalent to a monolithic 1-meter telescope, with the field of view reduced to 11′ × 11′, and the exposure times decreased down to 0.6 ms (1684 frames per second). Different channels may then have different filters installed, thus allowing a detailed study—acquiring both color and polarization information—of a target object with the highest possible temporal resolution. The telescopes are located in two pavilions with sliding roofs and are controlled by a cluster of 25 computers that both govern their operation and acquire and store up to 800 terabytes of data every night, also performing its real-time processing using a dedicated fast image subtraction pipeline. Long-term storage of the data will require a petabyte class storage. The operation of SAINT will allow acquiring an unprecedented amount of data on various classes of astrophysical phenomena, from near-Earth to extragalactic ones, while its multi-channel design and the use of commercially available components allows easy expansion of its scale, and thus performance and detection capabilities.

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Wide-field subsecond temporal resolution optical monitoring systems for the detection and study of cosmic hazards

Cited by 10 publications

References 10 publications

Two-Station Meteor Observations With Mini-Megatortora and Favor Wide-Field Monitoring Systems

Two-Station Meteor Observations With Mini-Megatortora and Favor Wide-Field Monitoring Systems

EXPLANATION: Exoplanet and Transient Event Investigation Project—Optical Facilities and Solutions

SAINT (Small Aperture Imaging Network Telescope)—A Wide-Field Telescope Complex for Detecting and Studying Optical Transients at Times from Milliseconds to Years

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