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Live Blogging Science News: The Rosetta Mission
Clark, S.
When one of the world's most popular online news websites decides to cover a space science event live, you know that something big is brewing. Stuart Clark reports on how live blogging can be used for science reporting and how an idea that was triggered by his observations during the Rosetta flyby of the asteroid Lutetia and the landing of the Cur…
Observing the Unobservable: Identification and Characterisation of Stealth Coronal Mass Ejections
D'Huys, Elke
In this doctoral thesis we study stealth CMEs: solar coronal mass ejections that are clearly observed in coronagraph data but do not show significant low-coronal or on-disk signatures of eruption. This lack of coronal signatures makes it challenging to determine their source region and predict their trajectory throughout interplanetary space. Comb…
Dense Image Matching for Mars Express HRSC Imagery Based on Precise Point Prediction Method
Geng, X.; Xu, Q.; Xing, S. +3 more
Currently, Mars Express HRSC imagery is an essential data source to derive high accuracy Mars topographic data. In view of the characteristics of Martian surface satellite imagery, a dense image matching scheme for HRSC imagery based on precise point prediction method is proposed. The image matching strategies of our method are elaborated in detai…
El programa científico de la Agencia Espacial Europea
Gabriel, C.
The rendezvous of the spatial mission Rosetta with the comet 67P/Churyumov-Gerasimenko and the spectacular deployment of the Philae lander to its surface marked the conclusion of the European Space Agency's (ESA's) scientific program Horizon 2000, 30 years after it had been conceived, back in 1985. Three of its cornerstone missions continue today …
Mission to Mars searches for life
Banks, Michael
A joint European and Russian probe to study the atmosphere and surface of Mars successfully launched last month from the Baikonur Cosmodrome in Kazakhstan. The Trace Gas Orbiter (TGO) - a collaboration between the European Space Agency (ESA) and the Russian space agency Roscosmos - also includes the entry, descent and landing demonstrator module (…
Generalized double-gradient model of flapping oscillations: Oblique waves
Korovinskiy, D. B.; Kiehas, S. A.
The double-gradient model of flapping oscillations is generalized for oblique plane waves, propagating in the equatorial plane. It is found that longitudinal propagation (ky = 0) is prohibited, while transversal (kx = 0) or nearly transversal waves should possess a maximum frequency, diminishing with the reduction of | k…
Batch Co-Registration of Mars High-Resolution Images to HRSC MC11-E Mosaic
Muller, Jan-Peter; Sidiropoulos, Panagiotis
Four NASA missions over the last forty years with onboard instruments for high-resolution orbital imaging have achieved both global coverage (with 6m CTX, 20m THEMIS-VIS and >8m Viking Orbiter cameras) as well as imaging with very high resolution in specific regions of interest (e.g. 25cm HiRISE and ≈1.5-12m MOC-NA cameras). Overall, this set o…
An investigation of the RCB star candidate GDS J0702414-023501
Bernhard, K.; Hummerich, S.
2MASS J07024146-0235017 = GDSJ0702414-023501 was included in the "Catalogue enriched with R CrB stars" on grounds of its near- and mid-infrared colours. The object, which corresponds to the carbon star IRAS 07001-0230 = CGCS 6197, has been found to exhibit large amplitude variability in its Bochum Galactic Disk Survey light curve. Taking into acco…
Estudio de fuentes de rayos X asociadas a la fuente de rayos γ no identificada 2FGL J0534.8-0548
Combi, J. A.; García, F.; Kornecki, P.
In this paper, we present a preliminary study of four point-like X-ray sources detected with XMM-Newton. Three of them lie within the ellipse corresponding to the 95 confidence contour of the unidentified -ray source 2FGL J0534.80548c, detected with the Fermi telescope. The fourth, named 2XMM J053514.8055143 and identified with a binary system, is…
Matched-filtering line search methods applied to Suzaku data
Enoto, Teruaki; Ohashi, Takaya; Yamada, Shin'ya +2 more
A detailed search for emission and absorption lines and an assessment of their upper limits are performed for Suzaku data. The method utilizes a matched-filtering approach to maximize the signal-to-noise ratio for a given energy resolution, which could be applicable to many types of line search. We first applied it to well-known active galactic nu…