Alerting observations of asteroids at the SBG telescope of the Kourovka Astronomical Observatory in the Gaia-FUN-SSO Network

2017 ◽  
Vol 12 (S330) ◽  
pp. 403-404
Author(s):  
Eduard Kuznetsov ◽  
Dmitry Glamazda ◽  
Galina Kaiser ◽  
Yulia Wiebe
Keyword(s):  
Solar System ◽  
Astronomical Observatory ◽  
Small Bodies ◽  
First Results

AbstractRegular astrometric observations of small bodies of the Solar System are conducted using a SBG telescope of the Kourovka Astronomical Observatory of the Ural Federal University. The first results of participation in Gaia-FUN-SSO network are presented.

scholarly journals Аstronomical observatory of Taras Shevchenko National University of Kyiv in 2018

2019 ◽  
pp. 48-51
Author(s):  
V. Efimenko
Keyword(s):  
Cosmic Rays ◽  
Solar System ◽  
High Energy ◽  
Astronomical Observatory ◽  
Small Bodies ◽  
Fundamental Physics ◽  
Potential Source ◽  
National University ◽  
Wave Research ◽  
Scientific Results

At the beginning of 2017, 53 workers worked in the State Astronomical Observatory, of which 28 were scientists, including 6 doctors of sciences and 17 candidates of sciences. The structure of the observatory includes the sector astrometry and the small bodies of the solar system (the head of the sector is Kleshchonok V.V., Ph.D), the department of astrophysics (the head of the department is professor Zhdanov V.I., doctor of Science) and 2 observation stations (Lisnyky, Pylypovychi). During the year budget topics were carried out: “Fundamental physics and models of high-energy astrophysical phenomena”, scientific leader professor Zhdanov V.I., doctor of Science; “Cosmic factors of terrestrial cataclysms: observation, analysis, informatization”, scientific leader Rosenbush V.K., doctor of Science. Young scientists of the Observatory won the competition for financing the youth theme “Multi-wave research of cosmic sources of gamma radiation in the framework of the STA project”, scientific leader Ponomarenko V.O., Ph.D. Main scientific results. The potential source of the triplet of cosmic rays with energies above 1020 eV – magnetar SGR 1900 + 14 is found. The possible manifestations of the acceleration of the cosmic rays by the remnant of the Nebula, in which the magnetar SGR 1900 + 14 was born, was investigated. In order to monitor potentially dangerous bodies of the solar system at the observatory station (Lisnyky) 3323 observations were received from 70 comets and 103 asteroids, 3 new asteroids (2017 ST39, 2017 SV39, 2017 TS7) were officially confirmed by the International Center for Small Planets. In 2017, the staff of the Observatory published 4 monographs, 81 scientific articles, 36 of them in foreign publications; 78 reports have been made at 12 conferences.

scholarly journals Astronomical observatory of Taras Shevchenko National University of Kyiv in 2019

2020 ◽  
pp. 33-35
Author(s):  
V. Efimenko
Keyword(s):  
Solar System ◽  
Magnetic Fields ◽  
High Energy ◽  
Astronomical Observatory ◽  
Small Scale ◽  
Full Time ◽  
Small Bodies ◽  
Part Time ◽  
Mathematical Sciences ◽  
The Village

In 2019, the Astronomical Observatory had 48 full-time employees and 11 part-time employees. A total of 59 employees, including 34 scientists, including 24 full-time (6 doctors of sciences and 16 candidates of sciences) and 10 part-time employees (1 doctor and 3 candidates of sciences). The observatory consists of the Department of Astrophysics (Head of the Department, Doctor of Physical and Mathematical Sciences, Professor VI Zhdanov), the Department of Astrometry and Small Bodies of the Solar System (Head of the Department, Candidate of Physical and Mathematical Sciences Lukyanyk IV.), and 2 observation stations (the village of Lisnyky, the village of Pylypovychi). During the year, 4 budget topics were implemented. The main scientific results. The active nuclei of galaxies have been identified, which are potential sources of extremely high-energy cosmic rays, taking into account energy losses and the influence of magnetic fields on the way to Earth (distance up to 300 million light-years). A large array of observational data of small bodies of the solar system on the 6th (SAO RAS), 4.1th SOAR (Chile), 2.6th (KrAO), 2nd (Terskol), 2nd (OPTICON), 1.3th (AI SAN), 0.70th and 0.48th (v. Lisnyky) telescopes. The reliability of Stokes diagnostics methods of small-scale magnetic fields of the Sun’s photosphere in the interpretation of spectropolarimetric observations of the infrared line Si I 1082.7 nm on modern (VTT, SST, GREGOR) and future (DKIST, EST with a diameter of 4 m) ground telescopes estimated. Published 2 monographs, 65 scientific articles, 25 of them in foreign publications; made 75 reports at scientific conferences.

scholarly journals Activity of the first interstellar comet 2I/Borisov around perihelion: results from Indian observatories

2021 ◽  
Vol 502 (3) ◽  
pp. 3491-3499
Author(s):  
K Aravind ◽  
Shashikiran Ganesh ◽  
Kumar Venkataramani ◽  
Devendra Sahu ◽  
Dorje Angchuk ◽  
...  
Keyword(s):  
Solar System ◽  
Production Rate ◽  
Rate Ratio ◽  
Carbon Chain ◽  
Astronomical Observatory ◽  
Nucleus Size ◽  
Chain Molecules ◽  
Molecular Emission ◽  
Imaging And Spectroscopy ◽  
Gas Ratio

ABSTRACT Comet 2I/Borisov is the first true interstellar comet discovered. Here, we present results from observational programs at two Indian observatories, 2 m Himalayan Chandra Telescope at the Indian Astronomical Observatory, Hanle (HCT) and 1.2 m telescope at the Mount Abu Infrared Observatory (MIRO). Two epochs of imaging and spectroscopy were carried out at the HCT and three epochs of imaging at MIRO. We found CN to be the dominant molecular emission on both epochs, 2019 November 30 and December 22, at distances of rH = 2.013 and 2.031 au, respectively. The comet was inferred to be relatively depleted in Carbon bearing molecules on the basis of low C2 and C3 abundances. We find the production rate ratio, Q(C2)/Q(CN) = 0.54 ± 0.18, pre-perihelion and Q(C2)/Q(CN) = 0.34 ± 0.12 post-perihelion. This classifies the comet as being moderately depleted in carbon chain molecules. Using the results from spectroscopic observations, we believe the comet to have a chemically heterogeneous surface having variation in abundance of carbon chain molecules. From imaging observations, we infer a dust-to-gas ratio similar to carbon chain depleted comets of the Solar system. We also compute the nucleus size to be in the range 0.18 km ≤ r ≤ 3.1 km. Our observations show that 2I/Borisov’s behaviour is analogous to that of the Solar system comets.

scholarly journals Synthesis of Organic Matter in Aqueous Environments Simulating Small Bodies in the Solar System and the Effects of Minerals on Amino Acid Formation

Life ◽  
2021 ◽  
Vol 11 (1) ◽  
pp. 32
Author(s):  
Walaa Elmasry ◽  
Yoko Kebukawa ◽  
Kensei Kobayashi
Keyword(s):  
Amino Acids ◽  
Organic Matter ◽  
Amino Acid ◽  
Solar System ◽  
Acid Formation ◽  
Gel Chromatography ◽  
Small Bodies ◽  
Enhanced Production ◽  
Aqueous Environments ◽  
Heating Duration

The extraterrestrial delivery of organics to primitive Earth has been supported by many laboratory and space experiments. Minerals played an important role in the evolution of meteoritic organic matter. In this study, we simulated aqueous alteration in small bodies by using a solution mixture of H2CO and NH3 in the presence of water at 150 °C under different heating durations, which produced amino acids after acid hydrolysis. Moreover, minerals were added to the previous mixture to examine their catalyzing/inhibiting impact on amino acid formation. Without minerals, glycine was the dominant amino acid obtained at 1 d of the heating experiment, while alanine and β-alanine increased significantly and became dominant after 3 to 7 d. Minerals enhanced the yield of amino acids at short heating duration (1 d); however, they induced their decomposition at longer heating duration (7 d). Additionally, montmorillonite enhanced amino acid production at 1 d, while olivine and serpentine enhanced production at 3 d. Molecular weight distribution in the whole of the products obtained by gel chromatography showed that minerals enhanced both decomposition and combination of molecules. Our results indicate that minerals affected the formation of amino acids in aqueous environments in small Solar System bodies and that the amino acids could have different response behaviors according to different minerals.

The Diverse Population of Small Bodies of the Solar System

2018 ◽  
pp. 395-419 ◽  
Author(s):  
Julia de León ◽  
Javier Licandro ◽  
Noemí Pinilla-Alonso
Keyword(s):  
Solar System ◽  
Diverse Population ◽  
Small Bodies

scholarly journals Looking towards the detection of exoearths with SuperWASP

2006 ◽  
Vol 5 (3) ◽  
pp. 183-186
Author(s):  
R.A. Street ◽  
D.J. Christian ◽  
W.I. Clarkson ◽  
A.C. Cameron ◽  
B. Enoch ◽  
...  
Keyword(s):  
South African ◽  
Field Survey ◽  
Astronomical Observatory ◽  
Wide Field ◽  
La Palma ◽  
Automated Algorithm ◽  
First Results ◽  
Gravitational Pull ◽  
Low Amplitude ◽  
Host Stars

The WASP consortium is conducting an ultra-wide field survey of stars between 8–15 mag from both hemispheres. Our primary science goal is to detect extra-solar ‘hot-Jupiter’-type planets that eclipse (or transit) bright host stars and for which further detailed investigation will be possible. We summarize the design of the SuperWASP instruments and describe the first results from our northern station SW-N, sited in La Palma, Canary Islands. Our second station, which began operations this year, is located at the South African Astronomical Observatory. Between April and September, 2004, SW-N continuously observed ~6.7 million stars. The consortium's custom-written, fully automated data reduction pipeline has been used to process these data, and the information is now stored in the project archive, held by the Leicester database and archive service (LEDAS). We have applied a sophisticated, automated algorithm to identify the low-amplitude (~0.01 mag), brief (~few hours) signatures of transiting exoplanets. In addition, we have assessed each candidate in the light of all available catalogue information in order to reject data artefacts and astrophysical false positive detections. The highest priority candidates are currently being subjected to further observations in order to select the true planets. Once the exoplanets are confirmed, a host of exciting opportunities are open to us. In this paper, we describe two techniques that exploit the transits in order to detect other objects within the same system. The first involves determining precise epochs for a sequence of transit events in order to detect the small timing variations caused by the gravitational pull of other planets in the same system. The second method employs ultra-high precision photometry of the transits to detect the deviations caused by the presence of exoplanetary moons. Both of these techniques are capable of detecting objects the size of terrestrial planets.

Precise positions of Triton in 2010–2014 based on Gaia-DR2

2021 ◽  
Author(s):  
Huiyan Zhang ◽  
Yong Yu ◽  
Dan Yan ◽  
Kai Tang ◽  
Rongchuan Qiao
Keyword(s):  
Solar System ◽  
Physical Properties ◽  
Orbital Evolution ◽  
Astronomical Observatory ◽  
Standard Errors ◽  
Origin And Evolution ◽  
Important Target ◽  
Long Time ◽  
Gaia Dr2

Abstract With unique orbital and physical characteristics, Triton is a very important target since it may contain information of the origin and evolution of the solar system. Besides space explorations, ground-based observations over long time also play key role on research of Triton. High-precision positions of Triton obtained from ground telescopes are of great significance for studying its orbital evolution and inverting the physical properties of Neptune. As a long-term observational target, Triton has been observed by the 1.56 m telescope of Shanghai Astronomical Observatory since 1996. In this paper, based on our AAPPDI software and with Gaia DR2 as the reference catalogue, 604 positions of Triton during 2010-2014 are calculated, with standard errors of $19mas-88mas$. A comparison between our results and the ephemeris (DE431+nep096) is also given.

Sign in / Sign up

Export Citation Format

Share Document