SHINeS: Space and High-Irradiance Near-Sun Simulator

Validerad;2022;Nivå 2;2022-06-09 (hanlid);Funder: Academy of Finland; Waldemar von Frenckell's foundation
We present SHINeS, a space simulator which can be used to replicate the thermal environment in the immediate neighborhood of the Sun down to a heliocentric distance r ∼ 0.06 au. The system consists of three main parts: the solar simulator which was designed and constructed in-house, a vacuum chamber, and the probing and recording equipment needed to monitor the experimental procedures. Our motivation for building this experimental system was to study the effect of intense solar radiation on the surfaces of asteroids when their perihelion distances become smaller than the semi-major axis of the orbit of Mercury. Comparisons between observational data and recent orbit and size-frequency models of the population of near-Earth asteroids suggest that asteroids are super-catastrophically destroyed when they approach the Sun. Whereas the current models are agnostic about the disruption mechanism, SHINeS was developed to study the mechanism or mechanisms responsible. The system can, however, be used for other applications that need to study the effects of high solar radiation on other natural or artificial objects.

NATURVETENSKAP Fysik Astronomi, astrofysik och kosmologi hsv//swe
NATURAL SCIENCES Physical Sciences Astronomy, Astrophysics and Cosmology hsv//eng
NATURVETENSKAP Fysik Fusion, plasma och rymdfysik hsv//swe
NATURAL SCIENCES Physical Sciences Fusion, Plasma and Space Physics hsv//eng
Earth (planet)
Orbits
Population statistics
Radiation effects
Simulators
Solar radiation
Experimental procedure
Experimental system
Heliocentric distances
Neighbourhood
Recording equipment
Semimajor axis
Solar simulator
Sun simulator
Thermal environment
Vacuum chambers
Asteroids
Onboard space systems
Rymdtekniska system

Granvik, MikaelLuleå tekniska universitet,Rymdteknik,Department of Physics, PO Box 64, 00014, University of Helsinki, Finland(Swepub:ltu)mikgra (författare)
Toliou, AthanasiaLuleå tekniska universitet,Rymdteknik(Swepub:ltu)athtol (författare)
Luleå tekniska universitetRymdteknik (creator_code:org_t)

Av författaren/redakt...: Tsirvoulis, Geor ...; Granvik, Mikael; Toliou, Athanasi ...

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