Laser Simulations of the Destructive Impact of Nuclear Explosions on Hazardous Asteroids

Aristova, E. Yu.; Aushev, A. A.; Baranov, V. K.; Belov, I. A.; Бельков, С. А.; Voronin, A. Yu.; Voronich, I. N.; Garanin, R. V.; Гаранин, С. Г.; Gainullin, K. G.; Golubinskii, A. G.; Городничев, Антон; Denisova, V. A.; Деркач, В. Н.; Drozhzhin, V. S.; Ericheva, I. A.; Zhidkov, N. V.; Ilkaev, R.; Krayukhin, A. A.; Leonov, A. G.; Litvin, D. N.; Makarov, K. N.; Martynenko, A. S.; Malinov, V. I.; Mis’ko, V. V.; Rogachev, V. G.; Rukavishnikov, A. N.; Salatov, E. A.; Skorochkin, Yu. V.; Smorchkov, G. Yu.; Stadnik, A. L.; Starodubtsev, V. A.; Starodubtsev, P. V.; Sungatullin, R. R.; Suslov, N. A.; Сысоева, Т. И.; Khatunkin, V. Yu.; Tsoi, E. S.; Shubin, O. N.; Yufa, V. N.

doi:10.1134/s1063776118010132

Cited by 9 publications

(2 citation statements)

References 4 publications

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“…Additionally, there are challenges raised by the appearance of digital astrometry. Finding a solution to this problem is of great importance for humanity, in order to discover and characterize, in the least amount of time, minor bodies that imply an imminent risk of collision with the Earth (Aristova et al 2018).…”

Section: Introductionmentioning

confidence: 99%

Determination of Orbital Elements and Ephemerides using the Geocentric Laplace’s Method

Espitia¹,

Quintero²,

Arellano³

2020

Journal of Astronomy and Space Sciences

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This paper presents a methodology for Initial Orbit Determination (IOD) based on a modification of the Laplace’s geocentric method. The orbital elements for Near-Earth asteroids (1864) Daedalus, 2003 GW, 2019 JA8, a Hungaria-type asteroid (4690) Strasbourg, and the asteroids of the Main Belt (1738) Oosterhoff, (2717) Tellervo, (1568) Aisleen and (2235) Vittore were calculated. Input data observations from the Minor Planet Center MPC database and Astronomical Observatory of the Technological University of Pereira (OAUTP; MPC code W63) were used. These observations cover observation arcs of less than 22 days. The orbital errors, in terms of shape and orientation for the estimated orbits of the asteroids, were calculated. The shape error was less than 53 × 10–3 AU, except for the asteroid 2019 JA8. On the other hand, errors in orientation were less than 0.1 rad, except for (4690) Strasbourg. Additionally, we estimated ephemerides for all bodies for up to two months. When compared with actual ephemerides, the errors found allowed us to conclude that these bodies can be recovered in a field of vision of 95’ × 72’ (OAUTP field). This shows that Laplace’s method, though simple, may still be useful in the IOD study, especially for observatories that initiate programs of minor bodies observation.

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Section: Introductionmentioning

confidence: 99%

Determination of Orbital Elements and Ephemerides using the Geocentric Laplace’s Method

Espitia¹,

Quintero²,

Arellano³

2020

Journal of Astronomy and Space Sciences

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“…Alongside with these studies, the simulation of space weathering together with the deflection of asteroids by lasers remains the most frequently studied research topic connected with application of lasers in this field (Park & Mazanek 2003). Recently, Aristova et al (2018) studied impact physics of nuclear explosion on hazardous asteroids, Moroz et al (1996) simulated using laser ablation optical effects of impact melting and repeated crystallization on asteroidal surfaces, and Kurahashi et al (2002) conducted laser ablation laboratory simulation of space weathering focused on finding the source of the difference between reflectance spectra of ordinary chondrites and their parent bodies, i.e., S-type asteroids. Loeffler et al (2008) studied the effect of the redeposition of impact-ejecta on mineral surfaces using laser ablation.…”

Section: Introductionmentioning

confidence: 99%

Main spectral features of meteors studied using a terawatt-class high-power laser

Ferus

Kubelík

Petera

et al. 2019

A&A

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Context. Meteor spectra are commonly interpreted using data from databases and tables. Several studies have demonstrated very sophisticated calculations of elemental compositions of meteoroid bodies based on the computation of synthetic meteor spectra or on the spectral analysis of airglow plasma containing evaporated, atomized, and ionized meteoroid matter. However, considering accuracy, reliability of computations, lack of laboratory experimental data in this field, as well as the complicated physical structure of meteor plasma, such qualitative assignment or quantitative calculations are still extensively discussed in the scientific community. Even on the laboratory level, many studies have shown the high complexity of the acquisition and interpretation of the data that are recorded with techniques of emission spectroscopy that are in fashion and philosophy similar to the spectral analysis of meteor plasma, that is, detection and quantification of the elements that are ablated from complicated multicomponent matrices. Aims. The current study is focused on the application of terawatt-class laser-induced breakdown spectroscopy (TC-LIBS) of real samples of chondritic meteorites. We recorded emission spectra with high resolution and high precision that contain spectral lines that are typical for real meteoric spectra. Experimental data were compiled in a form that is convenient for the meteoric spectra interpretation and calibration. Methods. TC-LIBS was carried out by a high-power terawatt-class laser facility, the Prague Asterix Laser System (PALS). The spectra were simultaneously recorded by an echelle high-resolution spectrograph in the UV/VIS spectral ranges and by a low-resolution spectrograph that was used for real observation of meteor spectra. We also present calculated synthetic spectra based on data from the NIST atomic spectra database. Results. We assembled etalon qualitative tables of major meteoric spectral features that can be used both for the spectral wavelength calibration of low-resolution observational instruments and for the exact interpretation of meteor spectra. The data are compared with real meteor spectra.

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Impact of neutron energy on asteroid deflection performance

et al. 2021

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Laser Simulations of the Destructive Impact of Nuclear Explosions on Hazardous Asteroids

Cited by 9 publications

References 4 publications

Determination of Orbital Elements and Ephemerides using the Geocentric Laplace’s Method

Determination of Orbital Elements and Ephemerides using the Geocentric Laplace’s Method

Main spectral features of meteors studied using a terawatt-class high-power laser

Impact of neutron energy on asteroid deflection performance

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