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Corrigendum to "Comet 67P/Churyumov-Gerasimenko, location of pristine material?" [Planet. Space Sci. 125 (2016) 96-104]
kossacki, Konrad J.
In this paper was investigated evolution of the material structure in selected locations on the nucleus of comet 67P/Churyumov-Gerasimenko. The shape of the surface was described by the shape model SHAP4s v1.0. The considered locations i.e. sectors of the surface were marked in Fig. 1.
Secret neutrino interactions: a pseudoscalar model
Tram, Thomas; Archidiacono, Maria; Hannestad, Steen +1 more
Neutrino oscillation experiments point towards the existence of additional mostly sterile neutrino mass eigenstates in the eV mass range. At the same time, such sterile neutrinos are disfavoured by cosmology (Big Bang Nucleosynthesis, Cosmic Microwave Background and Large Scale Structure), unless they can be prevented from being thermalised in the…
Global Bundle Adjustment with Variable Orientation Point Distance for Precise Mars Express Orbit Reconstruction
Bostelmann, J.; Heipke, C.
The photogrammetric bundle adjustment of line scanner image data requires a precise description of the time-dependent image orientation. For this task exterior orientation parameters of discrete points are used to model position and viewing direction of a camera trajectory via polynomials. This paper investigates the influence of the distance betw…
Búsqueda y análisis de asociaciones estelares en NGC247
Baume, G.; Rodríguez, M. J.; Feinstein, C.
From ACS/HST observations, available in the Space Telescope database, the search and analysis of young stellar associations in the galaxy NGC247 have been carried out. The Path Linkage Criterion was used for the detection, identifying 147 young stellar groups. Thanks to the ACS high spatial resolution, it was possible to detect the individual comp…
Le premier ciel de Gaia
Arenou, Frederic; Turon, Catherine
On 14 September 2016, the first data release of the ESA's Gaia mission has been published. Based on raw data collected between 25 July 2014 and 16 Septembre 2015, i.e. only over the first 14 months of mission, this first "Gaia sky" includes the accurate positions and Gaia magnitudes of more than a billion objects: it is already the largest all-sky…
Ultraviolet Spectroscopy of BL Hyi and EF Eri in High and Intermediate States
Sanad, M. R.; Abdel-Sabour, M. A.
We present the first phase-resolved ultraviolet spectroscopy of two polar systems, BL Hyi and EF Eri, in high and intermediate states from the International Ultraviolet Explorer (IUE) during the periods between 1982-1995 and 1979-1991, respectively. The flux curves for the C IV and He II emission lines for both systems showing variations in their …
Modern CCD Observations of Selected Minor Planets for the Connection of Dynamic and Kinematic Coordinate Systems
Maigurova, N.; Pomazan, A.
One of the methods of determining the orientation parameters of the dynamic and kinematic coordinate systems is to use of long-term series of ground-based observations of selected asteroids. For achievement of the best accuracy of the link parameters the high precision and uniformly covering the asteroids orbit observations are necessary. The anal…
The vorticity of Solar photospheric flows on the scale of granulation
Pevtsov, A. A.
We employ time sequences of images observed with a G-band filter (λ4305Å) by the Solar Optical Telescope (SOT) on board of Hinode spacecraft at different latitude along solar central meridian to study vorticity of granular flows in quiet Sun areas during deep minimum of solar activity. Using a feature correlation tracking (FCT) technique, we calcu…
The number distribution of weak Explosive Events observed by SUMER/SoHO
Mendoza-Torres, J. E.
Explosive Events (EEs) observed by SUMER on SoHO at the 1393.8 Å Si IV line are analyzed. We look for EEs to study their number distribution at low energies. Eight data sets taken in June 1996 in raster observations are used. In these observations a field on the solar disk is scanned several times during a period considerably longer than the typic…
Introduction: Special issue on planetary rings
Esposito, Larry; Nicholson, Philip
This issue of Icarus is devoted largely to papers presented at an open conference held at the Univ. of Colorado on 13-15 August 2014. This Planetary Rings Workshop is the fourth in a series organized by the Rings Working Group of the Cassini-Huygens mission and most of the papers presented dealt with phenomena revealed