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A series of fulleranes, namely C60H36, C70H38, C60H18 and a mixture of hydrogenated fullerenes composed by 77% C60Hx and 22% C70Hy, were dissolved in oleum (fuming sulfuric acid) in order to record the radical cation spectra of these molecules. Surprisingly, it was found that the fulleranes spectra in oleum corresponded to the radical cation

There are extremely luminous quasi stellar objects (QSOs) at high redshift which are absent at low redshift. The lower luminosities at low redshifts can be understood as the external manifestation of either a lower Eddington ratio or a lower mass. To distinguish between both effects, we determine the possible dependence of masses and Eddington

The molar extinction coefficients, known also as molar absorptivity epsilon, of C-60 and C-70 fullerenes infrared absorption spectra were determined at room temperature on samples embedded in KBr pellets. Furthermore, the integrated molar absorptivity Psi of each absorption infrared band either of C-60 and of C-70 was measured and reported together

Aims: We study the ionized gas emission from the large scale shock region of Stephan's Quintet (SQ). Methods: We carried out integral field unit (IFU) optical spectroscopy on three pointings in and near the SQ shock. We used Potsdam MultiAperture Spectrometer (PMAS) on the 3.5 m Calar Alto telescope to obtain measures of emission lines that provide

We present near-infrared spectra of 23 B-type asteroids obtained with the NICS camera-spectrograph at the 3.56 m Telescopio Nazionale Galileo. We also compile additional visible and near-infrared spectra of another 22 B-type asteroids from the literature. A total of 45 B-types are analyzed. No significant trends in orbital properties of our sample