Search Publications
Suzaku and Fermi observations of the supernova remnant G1.9 + 0.3
Gök, Fatma; Ergin, Tülün
We present results from the observation of the supernova remnant (SNR) G1.9 + 0.3, which is the youngest known SNR in the Milky Way, with the X-ray imaging spectrometer (XIS) on board Suzaku. We investigate the nature of the X-ray emission and compare our results with the previous X-ray studies. Additionally, we present the analysis results of the…
Powerful non-geoeffective interplanetary disturbance of July 2012 observed by muon hodoscope URAGAN
Veselovsky, I. S.; Astapov, I. I.; Barbashina, N. S. +2 more
The most powerful coronal mass ejection of the 24th solar cycle took place on the opposite side of the Sun on July 23, 2012 and had no geomagnetic consequences. Nevertheless, as a result of passing of the ejection through the heliosphere, variations of galactic cosmic rays flux were observed on the Earth. These variations were registered by the mu…
Counter data of the Cosmic Dust Analyzer aboard the Cassini spacecraft and possible “dust clouds” at Saturn
Grün, Eberhard; Srama, Ralf; Khalisi, Emil
We present the impact rates of dust particles recorded by the Cosmic Dust Analyzer (CDA) aboard the Cassini spacecraft. The “dust counters” evaluate the quality of an impact and give rise to the apparent density of dust particles in space.
The raw data is pre-selected and refined to a new structure that serves to a better investigation of den…Influence of the lunar ambience on dynamic surface hydration on sunlit regions of the Moon
Califorrniaa, E.
The accepted paradigm of a dry Moon has been upset by the recent detection of a wet Moon. EPOXI, NASA's extended mission for the Deep Impact spacecraft, observed and quantified dynamic surface hydration on sunlit regions of the Moon by infrared spectrometry in separate flybys. MIP CHACE, released from ISRO's Chandrayaan-1 spacecraft, detected H
Comparison of measured and calculated magnetic fields along the Ulysses orbit
Bazilevskaya, G. A.; Svirzhevsky, N. S.; Svirzhevskaya, A. K. +1 more
The existence of close relations between the temperature, density and velocity of the solar plasma and the heliospheric magnetic field (HMF) was shown along the space probe Ulysses orbit. A simple mathematical formula describing a relation between the HMF and the solar plasma temperature and density was introduced and the expected values of the HM…
End-of-life disposal of libration point orbit missions: The case of Gaia
Armellin, Roberto; Rasotto, Mirco; Di Lizia, Pierluigi +1 more
This work investigates end of life disposal options for libration point orbit missions. Three different options are presented: the first one considers spacecraft's re-entry in Earth's atmosphere, the second one concerns the impact on the Moon, whereas the third one consists in the injection of the spacecraft into a heliocentric graveyard orbit. Th…
Shock wave driven by CME evidenced by metric type II burst and EUV wave
Selhorst, C. L.; Cunha-Silva, R. D.; Fernandes, F. C. R.
Solar type II radio bursts are produced by plasma oscillations in the solar corona as a result of shock waves. The relationship between type II bursts and coronal shocks is well evidenced by observations since the 1960s. However, the drivers of the shocks associated with type II events at metric wavelengths remain as a controversial issue among so…