Dust from collisions: A way to probe the composition of exo-planets?

Autor: Emma S. Bullock, Andreas Morlok, Carey M. Lisse, Monica M. Grady, Andrew B. Mason, Mahesh Anand

In order to link infrared observations of dust formed during planet formation in debris disks to mid-infrared spectroscopic data of planetary materials from differentiated terrestrial and asteroidal bodies, we obtained absorption spectra of a represe

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::21070442e072397464848d99db20800f

Flare Activity of Blazar AO 0235+164

Autor: Emilia Järvelä, A. E. Volvach, Wara Chamani, R. J. C. Vera, Joni Tammi, M. G. Larionov, S. Enestam, L. N. Volvach, Merja Tornikoski, Anne Lähteenmäki

Publikováno v: Cosmic Research. 57:85-90

Data analysis of long-term multi-frequency monitoring of active galactic nucleus (AGN) AO 0235+164 in the millimeter wavelength range are presented. Using the harmonic analysis of observational data, the presence of orbital and precession periods in

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5690d449a6106fd8392465658fc6f78f
https://doi.org/10.1134/s0010952519020096

In Situ Data and Effect Correlation During September 2017 Solar Particle Event

Autor: Natalia Vlasova, Piers Jiggens, Ingmar Sandberg, Ilya Usoskin, Miikka Paassilta, Pentti Nieminen, Arttu Punkkinen, Alexander Mishev, Hannu Leppinen, Eamonn Daly, Ulrich Straube, Olivier Witasse, D. Heynderickx, Hugh Evans, T. P. O'Brien, Thomas Berger, Jaan Praks, Vladimir Kalegaev, Beatriz Sánchez-Cano, Donald M. Hassler, J. E. Mazur, Tsutomu Nagatsuma, Christian Poivey, C. Clavie, Rami Vainio, Petri Niemelä, Sylvie Benck, Stanislav Borisov, Daniel Müller, Mathias Cyamukungu, Sigiava Aminalragia-Giamini

Publikováno v: Space Weather. 17:99-117

Solar energetic particles are one of the main sources of particle radiation seen in space. In the first part of September 2017 the most active solar period of cycle 24 produced four large X-class flares and a series of (interplanetary) coronal mass e

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::684669ec75d2d1f00068408aa9dcbec4
https://doi.org/10.1029/2018sw001936

Space weathering on the Moon Farside-nearside solar wind precipitation asymmetry

Autor: Peter Wurz, Esa Kallio, Maxim L. Khodachenko, S. Dyadechkin

Publikováno v: Kallio, E.; Dyadechkin, S.; Wurz, Peter; Khodachenko, M. (2019). Space weathering on the Moon: Farside-nearside solar wind precipitation asymmetry. Planetary and space science, 166, pp. 9-22. Elsevier 10.1016/j.pss.2018.07.013

The lunar surface is continuously under the impact of solar wind plasma, which breaks the chemical bonds of the surface material resulting in weathering of the surface and a modified chemical composition. Ion impact also sputters the surface material

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5e6987fd93bdb021598b70b0c4618306
https://doi.org/10.1016/j.pss.2018.07.013

Developing a Linux-based nanosatellite on-board computer: Flight results from the Aalto-1 mission

Autor: Hannu Leppinen, Jaan Praks, Rafal Modrzewski, Nuno Silva, Henrik Forsten, Adrian Yanes, Antti Kestilä, Henry Sanmark, Petri Niemelä

Publikováno v: IEEE Aerospace and Electronic Systems Magazine. 34:4-14

The on-board computers of a spacecraft handle telecommands sent by the ground, provide telemetry to the ground, process on-board data, and control the spacecraft platform and payloads. A spacecraft may have one or several on-board computers that hand

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::64e9e6a8de99d7646a2d5a0385d8fb9b
https://doi.org/10.1109/maes.2019.170217