A5029213102- Planetary Science and Exploration
- Astro and Planetary Science
- Isotope Analysis in Ecology
- Spacecraft Design and Technology
- Stellar, planetary, and galactic studies
- Infrared Target Detection Methodologies
- Calibration and Measurement Techniques
- Astronomical and nuclear sciences
- Astronomy and Astrophysical Research
- Atmospheric and Environmental Gas Dynamics
- Atmospheric Ozone and Climate
Romanian Academy
2024
University of Craiova
2024
University of Bucharest
2021
Abstract On 2022 September 26, the Double Asteroid Redirection Test (DART) spacecraft impacted Dimorphos, satellite of binary near-Earth asteroid (65803) Didymos. This demonstrated efficacy a kinetic impactor for planetary defense by changing orbital period Dimorphos 33 minutes. Measuring change relied heavily on coordinated campaign lightcurve photometry designed to detect mutual events (occultations and eclipses) as direct probe satellite’s period. A total 28 telescopes contributed 224...
The near-Earth asteroid (98943) Torifune, previously designated 2001 CC$_{21}$, is the flyby target of Hayabusa2 extended mission, nicknamed Hayabusa2$\#$ (SHARP: Small Hazardous Asteroid Reconnaissance Probe). ground-based telescope observations offer a key science input for mission's scientific investigation. During 2022 - 2024 this was at visible apparent magnitudes brighter than 18.5, allowing detailed characterization using observations. We determined its rotation period...
The Hera mission was launched on 7 October 2024 and will reach its destination, the binary asteroids Didymos Dimorphos, in late 2026. carries hyperspectral imager Hyperscout-H. Its sensor consists of 2048 × 1088 pixels arranged macro pixel blocks 5 pixels. 25 each block are covered with filters different wavelengths where center response ranges from 657 to 949 nm. Therefore, micro provides brightness information for one wavelength, actual resolution is only about 409 217 Any simple...
ABSTRACT The discovery of interstellar comet 2I/Borisov offered the unique opportunity to obtain a detailed analysis an object coming from another planetary system, and leaving behind material in our interplanetary space. We continuously observed between 2019 October 3 December 13 using 1.52-m Telescopio Carlos Sánchez equipped with Multicolour Simultaneous Camera for studying Atmospheres Transiting exoplanets 2 instrument, 2.54-m Isaac Newton Telescope Wide Field Camera. characterize its...
Introduction             Hera is ESA’s first planetary defense mission designed to characterize the binary near-Earth asteroid (65803) Didymos [1]. Its secondary component, Dimorphos, was target of large-scale controlled collision with NASA/DART spacecraft in September 2022 [2]. Thus, will provide an unprecedented opportunity study aftermath ever artificial impact. This be done help...
Introduction The cosine* HyperScout-H (HS-H) instrument will fly aboard the ESA/Hera spacecraft. This mission [1], focused on planetary defense, aims to thoroughly characterize (65803) Didymos near-Earth binary asteroid following impact of NASA/DART mission. It launch in October 2024 and it is expected reach target by February 2027.HS-H captures hyperspectral images over 657 - 949 nm wavelength range. Each macropixel, made a 5 x matrix pixels, records signal across 25 different narrow bands,...
On 26 September 2022, NASA’s Double Asteroid Redirection Test (DART) mission impacted Dimorphos, the moonlet of near-earth asteroid 65803 Didymos, performing world’s first planetary defence test. ESA’s Hera will be launched in October 2024 and rendezvous with Didymos system end 2026 or beginning 2027. It closely investigate particular consequences DART impact.Hera carries hyperspectral imager Hyperscout-H. Its sensor consists 2048 × 1088 pixels which...
Context. Computational astronomy has reached the stage where running a gravitational N -body simulation of stellar system, such as Milky Way star cluster, is computationally feasible, but major limiting factor that remains ability to set up physically realistic initial conditions. Aims. We aim obtain conditions for simulations by taking advantage machine learning, with emphasis on reproducing small-scale interstellar distance distributions. Methods. The computational bottleneck obtaining...
On 26 September 2022, the Double Asteroid Redirection Test (DART) spacecraft impacted Dimorphos, satellite of binary near-Earth asteroid (65803) Didymos. This demonstrated efficacy a kinetic impactor for planetary defense by changing orbital period Dimorphos 33 minutes (Thomas et al. 2023). Measuring change relied heavily on coordinated campaign lightcurve photometry designed to detect mutual events (occultations and eclipses) as direct probe satellite's period. A total 28 telescopes...
Comets are primitive objects which formed in the outer parts of proto-planetary disk, beyond snow line. They can provide key information about origins our Solar System and its primordial nebula. The latest interstellar visitor [1], comet 2I/Borisov (initially designated C/2019 Q4), has given us chance to have a probe from this environment an unknown star explore possibility exchanging material between different planetary systems.We took advantage opportunity by performing extended...