Zobrazeno 1 - 10
of 1 718
pro vyhledávání: '"Karpov Sergey"'
Publikováno v:
Open Astronomy, Vol 32, Iss 1, Pp 12-1539 (2023)
L, T, and Y brown dwarf (BD) exploration is a topical issue. First, the transition boundary between planets and BDs is not fully understood yet. Second, there is a phenomenon called the L/T-transition. The observed properties of cooler BDs differ sig
Externí odkaz:
https://doaj.org/article/0a07b5ba9948469f8060ef2bf93749d4
Autor:
Karpov Sergey P.
Publikováno v:
Zbornik Radova Vizantološkog Instituta, Vol 2023, Iss 60-2, Pp 1303-1310 (2023)
The paper examines the complex, multifaceted role that the settlement of Tana played for the Venetian and Genoese Republics, Byzantium, the Golden Horde, the Russian principalities, the Mendicant Orders, and long-distance trade in the Late Middle
Externí odkaz:
https://doaj.org/article/92bb746f3c774752a46dbf2f68382d3c
Autor:
Karpov, Sergey
We present a simple web-based tool, STDWeb, for a quick-look photometry and transient detection in astronomical images. It tries to implement a self-consistent and mostly automatic data analysis workflow that would work on any image uploaded to it, a
Externí odkaz:
http://arxiv.org/abs/2411.16470
Autor:
Prester, Dijana Dominis, Ebr, Jan, Gaug, Markus, Hahn, Alexander, Babić, Ana, Eliášek, Jiří, Janeček, Petr, Karpov, Sergey, Kolarek, Marta, Manganaro, Marina, Mirzoyan, Razmik
Publikováno v:
Universe 2024, 10(9), 349
Ground-based observations of Very High Energy (VHE) gamma rays from extreme astrophysical sources are significantly influenced by atmospheric conditions. This is due to the atmosphere being an integral part of the detector when utilizing Imaging Atmo
Externí odkaz:
http://arxiv.org/abs/2409.01999
Autor:
Ebr, Jan, Karpov, Sergey
The visibility of stars is often used for cloud detection using all-sky cameras, which have however only a limited reach and resolution near the horizon due to the lack of detectable stars. At the Pierre Auger Observatory, it is also used by the curr
Externí odkaz:
http://arxiv.org/abs/2408.16735
Sixty years after the discovery of brown dwarfs, the search for these objects continues, particularly in the vicinity of the Sun. Objects near the Sun are characterized by large proper motions, making them seen as fast-moving objects. While the Gaia
Externí odkaz:
http://arxiv.org/abs/2408.15067
Autor:
Liu, Jialian, Wang, Xiaofeng, Andrade, Cristina, Duverne, Pierre-Alexandre, Zhang, Jujia, Li, Liping, Wang, Zhenyu, Navarete, Felipe, Reguitti, Andrea, Schuldt, Stefan, Cai, Yongzhi, Filippenko, Alexei V., Yang, Yi, Brink, Thomas G., Zheng, WeiKang, Esamdin, Ali, Iskandar, Abdusamatjan, Bai, Chunhai, Liu, Jinzhong, Li, Xin, Hu, Maokai, Li, Gaici, Li, Wenxiong, Ma, Xiaoran, Yan, Shengyu, Mo, Jun, Adami, Christophe, Akl, Dalya, Antier, Sarah, Broens, Eric, Ducoin, Jean-Grégoire, Elhosseiny, Eslam, Esposito, Thomas M., Freeberg, Michael, Gokulass, Priya, Hello, Patrice, Karpov, Sergey, Márquez, Isabel, Mašek, Martin, Pyshna, Oleksandra, Rajabov, Yodgor, Saint-Gelais, Denis, Serrau, Marc, Sokoliuk, Oleksii, Takey, Ali, Tanasan, Manasanun, Turpin, Damien
We present extensive photometric and spectroscopic observations of the nearby Type Ia supernova (SN) 2023wrk at a distance of about 40 Mpc. The earliest detection of this SN can be traced back to a few hours after the explosion. Within the first few
Externí odkaz:
http://arxiv.org/abs/2407.15768
Autor:
Malkov Oleg, Karpov Sergey, Kilpio Elena, Sichevsky Sergey, Chulkov Dmitry, Dluzhnevskaya Olga, Kovaleva Dana, Kniazev Alexei, Mickaelian Areg, Mironov Alexey, Murthy Jayant, Sytov Alexey, Zhao Gang, Zhukov Aleksandr
Publikováno v:
Open Astronomy, Vol 27, Iss 1, Pp 62-69 (2018)
Information on interstellar extinction and dust properties may be obtained from modern large photometric surveys data. Virtual Observatory facilities allow users to make a fast and correct cross-identification of objects from various surveys. It yiel
Externí odkaz:
https://doaj.org/article/d49103bf5de44a26a17e084b284dba09
The similarity in physical conditions in winds of low-mass post-asymptotic giant branch stars and evolved massive stars leads to the appearance of an interesting phenomenon of spectral mimicry. Due to that the discovery of every new star with Wolf--R
Externí odkaz:
http://arxiv.org/abs/2312.15854
Autor:
Beskin, Grigory, Biryukov, Anton, Gutaev, Alexey, Karpov, Sergey, Oganesyan, Gor, Valyavin, Gennady, Valeev, Azamat, Vlasyuk, Valery, Lyapsina, Nadezhda, Sasyuk, Vyacheslav
(Abridged) In this paper, we present a project of 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
Externí odkaz:
http://arxiv.org/abs/2312.01369