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AWARE: Alert Watcher and Astronomical Rapid Explorer
P. 225–245.
Панков Н. С., Pozanenko A. S., Belkin S., Minaev P., Щекотихин Е. А., Volnova A.
We present the software aware for automatic scheduling the observations with the ground based network of optical telescopes GRB-IKI-FuN (extendable on other facilities). It was designed to provide the optimal coverage of large uncertainty contours of LIGO/Virgo/KAGRA (LVK) gravitational wave events, and gamma-ray bursts (GRBs), detected by space missions, which is crucial for fast look-up for their optical counterparts. In addition, aware provides capabilities for notifying users on new alert messages received from General Coordinate Network (GCN), and sharing final products generated by the planner via Telegram bot. The implementation of the software allows both scheduler, and Telegram bot to run concurrently in near real-time. In this paper, we discuss main follow-up tactics of LVK events, and GRBs. We overview the automatic planning software aware in terms of an architecture and algorithms. The example products made by aware since the beginning of the LVK O4 run on 25 May 2023 are given. The plans for future work are briefly discussed.
In book
Kuznetsov S. Vol. 2086: Communications in Computer and Information Science. , Springer, 2024.
Jelínek M., Grebenev S. A., Minaev P. Y. et al., Astronomy and Astrophysics 2025 Vol. 698 Article A162
Context. Long gamma-ray bursts (GRBs) are characterized by a brief gamma-ray flash followed by a longer-lasting multiwavelength afterglow. The basic mechanism is largely understood, and the early afterglow evolution often shows complex features that provide crucial insights into the transition between prompt and afterglow phases. Aims. We present a detailed analysis of GRB 210312B, detected ...
Added: February 20, 2026
S. O. Belkin, A. S. Pozanenko, Astronomy Letters 2024 Vol. 50 No. 12 P. 701 – 731
We present the most complete up-to-date sample of supernovae associated with gamma-ray bursts (GRB-SNe) for which the peak time of the SN light curve and the peak absolute magnitude have been found. The sample contains 44 SNe. We have searched for correlations between the parameters of the GRB-SN $$V$$-band brightness peak (the rest-frame $$V$$-band absolute magnitude $$M_{V}$$) and ...
Added: February 20, 2026
Maillard J. P., Mihalchenko A., Novikov D. et al., Physical Review D - Particles, Fields, Gravitation and Cosmology 2024 Vol. 109 No. 2 Article 023523
We present a signal-foreground separation algorithm for filtering observational data to extract spectral distortions of the cosmic microwave background (CMB). Our linear method, called the least response method (LRM), is based on the idea of simultaneously minimizing the response to all possible foregrounds with poorly defined spectral shapes and random noise while maintaining a constant ...
Added: April 26, 2025
Mozgunov G., Pozanenko A. S., Minaev P. Y. et al., , in: Data Analytics and Management in Data Intensive Domains: 25th International Conference, DAMDID/RCDL 2023, Moscow, Russia, October 24–27, 2023, Revised Selected PapersVol. 2086: Communications in Computer and Information Science.: Springer, 2024. P. 215–224.
Added: January 31, 2025
Minaev P. Y., A.S. Pozanenko, Grebenev S. A. et al., Astronomy Letters 2024 Vol. 50 No. 1 P. 1–24
The results of a study of the short gamma-ray burst GRB 231115A in the X-ray and gamma-ray ranges are presented, based on data from the INTEGRAL and Fermi space observatories. The source of the burst is localized by the IBIS/ISGRI telescope of INTEGRAL observatory with an accuracy of ${≤}1.\!\!^'5$, it is located in the Cigar ...
Added: January 31, 2025
N. S. Pankov, A. S. Pozanenko, Minaev P. Y. et al., Astronomy Letters 2023 Vol. 49 No. 3 P. 81 – 109
We present the results of our analysis of multiwavelength observations for the long gamma-ray burst GRB 200829A. The burst redshift z≈1.29±0.04 has been determined photometrically at the afterglow phase. In gamma rays the event is one of the brightest (in isotropic equivalent), Eiso≳1054 erg. The multicolor light curve of the GRB 200829A afterglow is characterized ...
Added: June 13, 2024
Belkin S., Pozanenko A. S., Minaev P. Y. et al., Monthly Notices of the Royal Astronomical Society 2024 Vol. 527 No. 4 P. 11507–11520
We present full photometric coverage and spectroscopic data for soft gamma-ray burst GRB 201015A with a redshift z = 0.426. Our data span a time range of 85 d following the detection of GRB. These observations revealed an underlying supernova SN 201015A with a maximum at 8.54±1.48 d (rest frame) and an optical peak absolute ...
Added: May 20, 2024
Shelov-Kovedyaev F. V., В кн.: Археология и история Боспора. Сборник материалов Всероссийской научно-практической конференции «Археология и история Боспора» (результаты новейших исследований памятников Боспорского царства), Керчь, 09– 12 августа 2023 г.Т. 6.: Антиква, 2024. С. 148–158.
The paper publishes the inscriptions on three sundials from Kertch Museum. No. 1 presents the observations of astronomer in 4-years periods; no. 2 – the votive to Apollo on the oldest σκαφή; no. 3 – the observations of different constellations in several months. The author makes a conclusion that the activity in Bosporus was of ...
Added: February 12, 2024
Pankov N.S., Pozanenko A. S., Minaev P. Y. et al., Astronomy Letters 2023 Vol. 49 No. 3 P. 81–109
We present the results of our analysis of multiwavelength observations for the long gamma-ray burst GRB 200829A. The burst redshift z≈1.29±0.04 has been determined photometrically at the afterglow phase. In gamma rays the event is one of the brightest (in isotropic equivalent), Eiso≳1054 erg. The multicolor light curve of the GRB 200829A afterglow is characterized by chromatic ...
Added: January 30, 2024
Вернадский В. И., Исследователь/Researcher 2023 № 1-2 С. 152–154
Right after the birth of his son, V. I. Vernadsky designed a program of his development observations. The observation diaries themselves were kept by his wife, Georgy’s mother, Natalia. In introductory notes, Vladimir Vernadsky pays special attention to the importance of making observations considering the observer’s condition in order to increase the value of records ...
Added: September 2, 2023
Oganesyan G., Karpov S., Salafia O. S. et al., NATURE ASTRONOMY 2023 Vol. 7 P. 843–855
Long gamma-ray bursts are produced by energy dissipation within ultra-relativistic jets launched by newborn black holes after the collapse of a peculiar class of massive stars. Right after the luminous and highly variable gamma-ray emission, a multi-wavelength afterglow is released by external dissipation of the jet energy in the medium that surrounds the progenitor star. ...
Added: June 8, 2023
S. O. Belkin, A. S. Pozanenko, Pattern Recognition and Image Analysis 2023 Vol. 33 No. 2 P. 86–91
Detection, observation and description of supernovae associated with gamma-ray bursts are currently topical tasks in the field of transient phenomena. From the moment an assumption is made about the relationship of the gamma-ray burst with a supernova to obtaining the parameters of the latter, many steps must be taken, and each of them introduces uncertainty ...
Added: May 12, 2023
Nicolai Pankov, Alexei Pozanenko, Kouprianov V. et al., , in: Data Analytics and Management in Data Intensive Domains. 23rd International Conference, DAMDID/RCDL 2021, Moscow, Russia, October 26–29, 2021, Revised Selected Papers.: Springer, 2022. P. 104–134.
Identification and following study of optical transients (OTs) associated with cosmic gamma-ray bursts (GRBs) and gravitational wave (GWs) events is a relevant research problem of multi-messenger astronomy. Since their first discovery, one of the greatest challenges is the localisation uncertainty. The sources of OTs are initially localised with space gamma and X-ray telescopes or ground-based ...
Added: January 31, 2023
Belkin S., Pozanenko Alexei, , in: Data Analytics and Management in Data Intensive Domains. 23rd International Conference, DAMDID/RCDL 2021, Moscow, Russia, October 26–29, 2021, Revised Selected Papers.: Springer, 2022. P. 74–91.
More than 10000 gamma-ray bursts (GRBs) have been detected since discovery. Long-term observations of about 850 GRB afterglow in optic since 1998 have shown that a core-collapse supernova (SN) accompanies about 50 nearby GRB sources. We have collected about two dozen SNe’ multicolor light curves associated with GRBs. The sample is based on published data, ...
Added: January 31, 2023
Wang X., Chen Y., Huang X. et al., Astrophysical Journal 2022 Vol. 939 No. 1 Article 39
We obtained well-sampled optical photometry of GRB 110213A, including Swift/UVOT and XRT. Combining our data from those of other ground-based telescopes, we present 15 optical multicolor light curves showing similar shapes with two peaks. In contrast, in the X-ray band, only a single peak is observed between the two optical peaks. Temporal and spectral analysis ...
Added: January 31, 2023
Rossi A., Rothberg B., Palazzi E. et al., Astrophysical Journal 2022 Vol. 932 No. 1 Article 1
Gamma-ray bursts (GRBs) are classified into long and short events. Long GRBs (LGRBs) are associated with the end states of very massive stars, while short GRBs (SGRBs) are linked to the merger of compact objects. GRB 200826A was a peculiar event, because by definition it was an SGRB, with a rest-frame duration of 1/40.5 s. ...
Added: January 30, 2023
Zhang B., Zhang B., Castro-Tirado A. J. et al., NATURE ASTRONOMY 2018 Vol. 2 P. 69–75
The ejecta composition is an open question in gamma-ray burst (GRB) physics1. Some GRBs possess a quasi-thermal spectral component in the time-resolved spectral analysis2, suggesting a hot fireball origin. Others show a featureless non-thermal spectrum known as the Band function3-5, consistent with a synchrotron radiation origin5,6 and suggesting that the jet is Poynting-flux dominated at the ...
Added: October 31, 2022
Shelov-Kovedyaev F. V., В кн.: Херсонесский сборник: Сборник научных трудов. Выпуск 23Вып. 23.: Севастополь: Государственный историко-археологический музей-заповедник «Херсонес Таврический», 2022. С. 208–222.
The paper presents the detailed publication of the unique instrument in the ancient culture of Chersonesos Tauricus. That’s one of two most ancient arachne in all the Greek world, which can be dated from last quarter of IV B.C. The letters on both sides of the sundial are interpreted as the symbols of degrees in ...
Added: October 29, 2022
Belkin S., Pozanenko A. S., Astronomy Letters 2020 Vol. 46 No. 12 P. 783–811
Multicolor photometric observations in the optical band and a comprehensive study in the X-ray, gamma-ray, and radio bands are presented for GRB 181201A and its afterglow. The optical observations began ∼0.5 days after the burst and lasted almost continuously for ~24 days. They were resumed after eight months, which allowed us to determine the contribution of the ...
Added: February 6, 2022
Minaev P., Pozanenko A. S., , in: Data Analytics and Management in Data Intensive Domains: 22nd International Conference, DAMDID/RCDL 2020, Voronezh, Russia, October 13–16, 2020, Selected Proceedings.: Springer, 2021. P. 134–147.
There are at least two distinct classes of Gamma-Ray Bursts
(GRB) according to their progenitors: short duration and long duration
bursts. It was shown that short bursts result from compact binary
merging, while long bursts are associated with core collapse supernova.
However, one could suspect the existence of more classes and subclasses.
For example, compact binary can be double neutron ...
Added: January 25, 2022
Volnova A., Pozanenko Alexei, Mazaeva E. et al., , in: Data Analytics and Management in Data Intensive Domains: 22nd International Conference, DAMDID/RCDL 2020, Voronezh, Russia, October 13–16, 2020, Selected Proceedings.: Springer, 2021. P. 148–159.
Gamma-ray bursts (GRBs) are the most energetic and yet the most
mysterious events in the Universe, which are observed in all ranges of electromagnetic
spectrum from radio-bandwidth up to very high energy of about TeV
energies. Moreover, recently GRBs accompanying gravitational waves produced
in binary neutron starmerging were discovered. Despite on theGRBis initially registering
by space-born gamma-ray omnidirectional detectors or ...
Added: January 25, 2022
Volnova A., Alexei Pozanenko, Mazaeva E. et al., Anais da Academia Brasileira de Ciencias 2021 Vol. 93 Article e20200883
Gamma-ray bursts (GRBs) are the most energetic and mysterious events in the Universe, which are observed in all ranges of electromagnetic spectrum. Most valuable results about physics of GRB are obtained by optical observations. GRBs are initially detected in gamma-rays with poor localization accuracy, and an optical counterpart should be found. The faster the counterpart ...
Added: January 25, 2022
Gupta R., Gupta S., Chattopadhyay T. et al., Monthly Notices of the Royal Astronomical Society 2022 Vol. 511 No. 2 P. 1694–1713
Multi-pulsed GRB 190530A, detected by the GBM and LAT onboard Fermi, is the sixth most fluent GBM burst detected so far. This paper presents the timing, spectral, and polarimetric analysis of the prompt emission observed using AstroSat and Fermi to provide insight into the prompt emission radiation mechanisms. The time-integrated spectrum shows conclusive proof of two ...
Added: January 14, 2022