scholarly journals OBSERVATIONS OF TRANSIENT EVENTS WITH MINI-MEGATORTORA WIDE-FIELD MONITORING SYSTEM WITH SUB-SECOND TEMPORAL RESOLUTION

2019 ◽  
Vol 51 ◽  
pp. 30-38 ◽  
Author(s):  
S. Karpov ◽  
G. Beskin ◽  
A. Biryukov ◽  
S. Bondar ◽  
E. Ivanov ◽  
...  
Keyword(s):  
Monitoring System ◽  
Temporal Resolution ◽  
Special Astrophysical Observatory ◽  
Artificial Satellites ◽  
Wide Field ◽  
Analysis Pipeline ◽  
Real Time System ◽  
System Data ◽  
Transient Events ◽  
Data Analysis Pipeline

Here we present the summary of operation of a novel 9-channel wide-field optical monitoring system with subsecond temporal resolution, Mini-MegaTORTORA, which systematically surveys the sky since 2014 at Special Astrophysical Observatory on Russian Caucasus. The system is able to observe the sky simultaneously in either wide (∼900 square degrees) or narrow (∼100 square degrees fields of view, either in clear light or with any combination of color (Johnson-Cousins B, V or R) and polarimetric filters installed, with exposure times ranging from 0.1 s to hundreds of seconds. The real-time system data analysis pipeline performs automatic detection of rapid transient events, both near-Earth and extragalactic. The objects routinely detected by Mini-MegaTORTORA also include faint meteors and artificial satellites. The imaging survey performed by Mini-MegaTORTORA also allows to look for a slower variability of various kinds of objects.

scholarly journals The First Light of Mini-MegaTORTORA Wide-Field Monitoring System

2015 ◽  
Vol 24 (1) ◽  
Author(s):  
A. Biryukov ◽  
G. Beskin ◽  
S. Karpov ◽  
S. Bondar ◽  
E. Ivanov ◽  
...  
Keyword(s):  
Monitoring System ◽  
Temporal Resolution ◽  
Field Monitoring ◽  
Special Astrophysical Observatory ◽  
Wide Field ◽  
Optical Monitoring

AbstractWe describe the first light of a new 9-channel wide-field optical monitoring system with sub-second temporal resolution, Mini-MegaTORTORA, which is being tested now at the Special Astrophysical Observatory in Russian Caucasus. The system is able to observe the sky simultaneously in either wide (~900 deg

Examining the emission and transmission spectra of WASP-79b with retrieval 

2021 ◽  
Author(s):  
Michelle Bieger ◽  
Quentin Changeat
Keyword(s):  
Hubble Space Telescope ◽  
Emission Spectra ◽  
Temperature Structure ◽  
Wide Field ◽  
Transmission Spectra ◽  
Analysis Pipeline ◽  
Confidence Levels ◽  
Iron Hydride ◽  
Best Fit ◽  
Data Analysis Pipeline

<p>Retrieval tools provide a way of determining an exoplanet atmosphere's temperature structure and composition with an observed planetary spectrum, working backwards to determine the chemistry and temperature by iteratively comparing synthetic spectra that have been constructed via a forward model to the observed spectra and determining a best-fit result (Barstow and Heng, 2020). This talk will be presenting the emission and reanalysed transmission spectrum and retrieval analysis of WASP-79b, an inflated hot Jupiter first detected by Smalley et al. (2012). Previous transmission spectra of WASP-79b has been analysed in Sozten et al. (2020), Skaf et al. (2020), and Rathcke et al. (2021); all studies agreeing on detections of H2O with various confidence levels, with the latter finding moderate evidence of an H- bound-free opacity compared to iron hydride abundance found by the other studies. Using the publicly available \verb+Iraclis+ data analysis pipeline and the Bayesian atmospheric retrieval framework TauREx 3, we will be adding to the global picture of this planet by examining the Hubble Space Telescope emission spectra as captured by the Wide Field Camera 3 G141 grism (PI: David Sing, proposal ID: 14767). </p>

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

2013 ◽  
Vol 61 ◽  
pp. 465-469 ◽  
Author(s):  
S. Karpov ◽  
G. Beskin ◽  
S. Bondar ◽  
A. Perkov ◽  
E. Ivanov ◽  
...  
Keyword(s):  
Monitoring System ◽  
Temporal Resolution ◽  
Field Monitoring ◽  
High Temporal Resolution ◽  
Wide Field

scholarly journals Status and Perspectives of the Mini-MegaTORTORA Wide-field Monitoring System with High Temporal Resolution

10.14311/1710 ◽  
2013 ◽  
Vol 53 (1) ◽  
Author(s):  
Sergey Karpov ◽  
Grigory Beskin ◽  
Sergey Bondar ◽  
Alexey Perkov ◽  
Evgeny Ivanov ◽  
...  
Keyword(s):  
Monitoring System ◽  
Temporal Resolution ◽  
Field Monitoring ◽  
Status Report ◽  
High Temporal Resolution ◽  
Wide Field ◽  
Optical Components

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.

scholarly journals TWO-STATION METEOR OBSERVATIONS WITH MINI-MEGATORTORA AND FAVOR WIDE-FIELD MONITORING SYSTEMS

2019 ◽  
Vol 51 ◽  
pp. 127-130 ◽  
Author(s):  
S. Karpov ◽  
N. Orekhova ◽  
G. Beskin ◽  
A. Biryukov ◽  
S. Bondar ◽  
...  
Keyword(s):  
Monitoring System ◽  
Temporal Resolution ◽  
Field Monitoring ◽  
Monitoring Systems ◽  
Wide Field ◽  
Preliminary Results ◽  
Angular Velocities

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.

scholarly journals Untriggered search for rapid optical transients with Mini-MegaTORTORA wide-field monitoring system

2016 ◽  
Vol 12 (S324) ◽  
pp. 85-86
Author(s):  
S. Karpov ◽  
G. Beskin ◽  
A. Biryukov ◽  
S. Bondar ◽  
E. Ivanov ◽  
...  
Keyword(s):  
Monitoring System ◽  
Time Scales ◽  
Field Monitoring ◽  
Special Astrophysical Observatory ◽  
Wide Field ◽  
Optical Monitoring ◽  
Optical Transients

AbstractHere we report ongoing efforts for an untriggered search of rapid optical transients of various astrophysical and non-astrophysical origins on time scales down to fractions of a second with Mini-MegaTORTORA. Mini-MegaTORTORA is a novel 9-channel wide-field optical monitoring system in operation since 2014 at Special Astrophysical Observatory on Russian Caucasus.

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

2013 ◽  
Vol 183 (8) ◽  
pp. 888-894
Author(s):  
G.M. Beskin ◽  
S.V. Karpov ◽  
V.L. Plokhotnichenko ◽  
S.F. Bondar ◽  
A.V. Perkov ◽  
...  
Keyword(s):  
Temporal Resolution ◽  
Monitoring Systems ◽  
Wide Field ◽  
Optical Monitoring
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