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Philae Attitude Determination through Nonlinear Optimal Identification of Solar Arrays Telemetry
Topputo, F.; Bernelli-Zazzera, F.; Caputo, G. M.
In Rosetta lander Philae, the ability to increase the on-comet power production gives the chance to maintain the system alive, as well as the opportunity to accomplish scientific experiments during the Long Term Science (LTS) phase. This can be accomplished if the lander operates at solar incidence angles that maximize the total power produced by …
A filament eruption with an apparent reshuffle of endpoints
Filippov, Boris
A filament eruption during 2010 April 30-May 1, which shows the reconnection of one filament leg with a region far away from its initial position, is analysed. Observations from three viewpoints are used for measurements of endpoint coordinates as precise as possible. The northern leg of the erupting prominence loop `jumps' laterally to a latitude…
Higher order nonlinear parameters with Planck constraints
Takahashi, Tomo; Gong, Jinn-Ouk
We investigate how higher-order nonlinear parameters affect lower-order ones through loop effects. We calculate the loop corrections up to two loops and explicitly show that the tree contribution is stable against loop terms in most cases. We argue that, nevertheless, observational constraints on nonlinear parameters such as fNL and τ
Approach of spacecraft Rosetta with comet 67P/Churyumov-Gerasimenko nucleus - the first scientific results
Churyumov, K. I.
The first results of the study of the nucleus of comet Churyumov-Gerasimenko by Rosetta spacecraft are presented.
Interpretation of Cluster WBD frequency conversion mode data
Pickett, J. S.; Kirchner, D. L.; Christopher, I. W.
The Cluster wide-band data (WBD) plasma wave receiver mounted on each of the four Cluster spacecraft obtains high time resolution waveform data in the frequency range of ~70 Hz to 577 kHz. In order to make measurements above 77 kHz, it uses frequency conversion to sample the higher frequency waves at one of three different conversion frequencies (…
The fe Kα Emission Line of Intermediate Polar V1223 Sagittarii
Eze, R. N. C.; Nwaffiah, J. U.
X-ray development of the classical nova V2672 Ophiuchi with Suzaku
Drake, Jeremy J.; Tsujimoto, Masahiro; Kitamoto, Shunji +1 more
We report on the Suzaku detection of a rapid flare-like X-ray flux amplification early in the development of the classical nova V2672 Ophiuchi. Two target-of-opportunity ∼ 25 ks X-ray observations were made 12 and 22 d after the outburst. The flux amplification was found in the latter half of day 12. Time-sliced spectra are characterized by a grow…
Erratum: Herschel, Spitzer and Magellan infrared observations of the star-forming region RCW 121 (IRAS 17149-3916)
Roth, M.; Elia, D.; Gómez, M. +4 more
Calculated vibrational populations of O2 Herzberg states in the mixture of CO2, CO, N2, O2 gases
Kirillov, A. S.
Calculated in (Kirillov, 2014) constants are applied for simulations of vibrational populations of Herzberg states in mixtures of O2 with CO2, CO, N2 gases for laboratory conditions. Results show very important role of electronic-vibrational processes in redistribution of electronic excitation energy among vibratio…
Polarisation observations of H2O JK-1 K1 = 532 - 441 620.701 GHz maser emission with Herschel/HIFI in Orion KL
Menten, K. M.; Morris, P.; Teyssier, D. +9 more
Context. The high intensities and narrow bandwidths exhibited by some astronomical masers make them ideal tools for studying star-forming giant molecular clouds. The water maser transition JK-1K1 = 532-441 at 620.701 GHz can only be observed from above Earth's strongly absorbing atmosphere; it…