Search Publications
What Rosetta did: It came from out of space
Ridgeway, Andy
On the detection of point sources in Planck LFI 70 GHz CMB maps based on cleaned K-map
Kashin, A. L.; Khachatryan, H. G.; Poghosyan, E. +1 more
We use the Planck LFI 70 GHz data to further probe point source detection technique in the sky maps of the cosmic microwave background (CMB) radiation. The method developed by Tegmark et al. for foreground reduced maps and the Kolmogorov parameter as the descriptor are adopted for the analysis of Planck satellite CMB temperature data. Most of the …
Hinode SOT Plate Scale Reinvestigated by G-Band Images on the 2012 Transit of Venus
Shimizu, T.; Imamura, T.; Nakamura, M. +1 more
The Hinode Solar Optical Telescope (SOT) successfully observed the transit of Venus with an unprecedented high spatial resolution on 5 - 6 June 2012, providing images of the aureole refracted by the atmosphere of Venus and the dark Venus disk against the bright solar surface. The transit of Venus provided a unique opportunity for calibrating the p…
Probing the Hidden Geology of Isidis Planitia (Mars) with Impact Craters
Orosei, Roberto; Caprarelli, Graziella
In this study we investigated Isidis Planitia, a 1325 km diameter multi-ring impact basin intersecting the Martian hemispheric dichotomy, located in the eastern hemisphere, between Syrtis Major and Utopia Planitia. From Mars Orbiter Laser Altimeter gridded data we observed that in the center of Isidis the -3700 m and -3800 m isolines strike NW-SE,…
Reply to the comment by Cowley et al. on "Magnetic phase structure of Saturn's 10.7 h oscillations"
Dougherty, M. K.; Yates, J. N.; Southwood, D. J.
Physical properties of distant red galaxies in the COSMOS/UltraVISTA field
Fang, Guanwen; Kong, Xu; Fan, Lulu +1 more
We present a study on physical properties for a large distant red galaxy (DRG) sample, using the K-selected multi-band photometry catalog of the COSMOS/UltraVISTA field and the CANDELS near-infrared data. Our sample includes 4485 DRGs with (J - K)AB > 1.16 and KAB < 23.4 mag, and 132 DRGs have HST/WFC3 morphological mea…
Multifrequency observations of the extreme X-ray weak quasar PG0043+039
Schartel, N.; Kollatschny, W.; Zetzl, M.
Cluster Technical Challenges and Scientific Achievements
Escoubet, C. P.; Goldstein, M. L.; Taylor, M. G. G. T. +5 more
The Cluster mission has been operated successfully for 14 years. As the first science mission comprising four identical spacecraft, Cluster has faced many challenges during its lifetime. Initially, during the selection process where strong competition with SOHO was almost fatal to one of them, finally both missions were merged into the Solar Terre…
Discordant optical and X-ray classification of AGN
Carrera, F. J.; Wiersema, K.; Mateos, S. +1 more
To provide insight into the apparent mismatch between the optical and X-ray absorption properties observed in 10--30 % of Active Galactic Nuclei (AGN), we have conducted a detailed study of two X-ray unabsorbed AGN with a type-2 optical spectroscopic classification. In addition to high quality X-ray spectroscopic observations, that we used to dete…
The return of Philae
Clery, Daniel; Hand, Eric