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The bandmerged Planck Early Release Compact Source Catalogue: probing sub-structure in the molecular gas at high Galactic latitude
Helou, G.; McGehee, P.; Pearson, T. J. +3 more
The Planck Early Release Compact Source Catalogue (ERCSC) includes nine lists of highly reliable sources, individually extracted at each of the nine Planck frequency channels. To facilitate the study of the Planck sources, especially their spectral behaviour across the radio/infrared frequencies, we provide a `bandmerged' catalogue of the ERCSC so…
Results of a hubble space telescope search for natural satellites of dwarf planet 1 ceres
Russell, Christopher T.; Li, Jian-Yang; Schmidt, Britney E. +4 more
In order to prepare for the arrival of the Dawn spacecraft at Ceres, a search for satellites was undertaken by the Hubble Space Telescope (HST) to enhance the mission science return and to ensure spacecraft safety. Previous satellite searches from ground-based telescopes have detected no satellites within Ceres' Hill sphere down to a size of 3 km …
The classification of cislunar trajectories and its applications in the Earth–Moon system
Xu, Ming; Xu, Shijie; Liang, Yuying
This paper considers the evolvement of cislunar transfers and addresses two distinct types, i.e., direct and low-energy transfers based on Apollo and SMART-1 missions. Both direct and low-energy trajectories are discussed systematically in the context of restricted three-body dynamics in this paper. The differences between them are assessed by con…
Image stacking analysis of SDSS galaxies with AKARI Far-Infrared Surveyor maps at 65 µm, 90 µm, and 140 µm
Doi, Yasuo; Takita, Satoshi; Ootsubo, Takafumi +4 more
We perform image stacking analysis of Sloan Digital Sky Survey (SDSS) photometric galaxies over the AKARI Far-Infrared Surveyor maps at 65 µm, 90 µm, and 140 µm. The resulting image profiles are decomposed into the central galaxy component (single term) and the nearby galaxy component (clustering term), as a function of the r-ban…
Inferring the Coronal Density Irregularity from EUV Spectra
Hahn, M.; Savin, D. W.
Understanding the density structure of the solar corona is important for modeling both coronal heating and the solar wind. Direct measurements are difficult because of line-of-sight integration and possible unresolved structures. We present a new method for quantifying such structures using density-sensitive extreme ultraviolet line intensities to…
Cosmic ray dose monitoring using RadFET sensors of the Rosetta instruments SESAME and COSIMA
Fischer, Henning; Koch, Andreas; Seidensticker, Klaus J. +5 more
On its more than 10 years journey to comet 67P/Churyumov-Gerasimenko, Rosetta carried RadFET ionising dose monitors in the central electronics of the orbiter instrument COSIMA and the lander instrument SESAME. The readings of the dosimeters were corrected for the temperature of the devices during measurements. Because the sensitivity of RadFETs de…
Abundance analysis of the supergiant stars HD 80057 and HD 80404 based on their UVES Spectra
Baştürk, Ö.; Tanrıverdi, T.
This study presents elemental abundances of the early A-type supergiant HD 80057 and the late A-type supergiant HD 80404. High resolution and high signal-to-noise ratio spectra published by the UVES Paranal Observatory Project (Bagnulo et al., 2003) were analyzed to compute their elemental abundances using ATLAS9 (Kurucz, 1993; 2005; Sbordone et a…
Fine structures at pore boundary
Bharti, L.; Quintero Noda, C.; Joshi, C. +2 more
We present high resolution observations of fine structures at pore boundaries. The inner part of granules towards umbra show dark striations which evolve into a filamentary structure with dark core and `Y' shape at the head of the filaments. These filaments migrate into the umbra similar to penumbral filaments. These filaments show higher temperat…
Command and data management system (CDMS) of the Philae lander
Schmidt, W.; Balázs, A.; Baksa, A. +9 more
The paper covers the principal requirements, design concepts and implementation of the hardware and software for the central on-board computer (CDMS) of the Philae lander in the context of the ESA Rosetta space mission, including some technical details. The focus is on the implementation of fault tolerance, autonomous operation and operational fle…
Radial velocity dispersions of star groups in M 67
Vereshchagin, S. V.; Chupina, N. V.
High-precision measurements of radial velocities of the M 67 cluster members are used to calculate the radial-velocity dispersions in the stellar groups found earlier in the cluster's corona. The previously detected feature in one of the groups (Group 60) consisting of stars with almost identical space velocities was confirmed. The possibility of …