This material appears dark in the Cassini camera's IR3 filter (central wavelength 930 nanometers), giving the tiger stripes a dark appearance in clear-filter images and a blue-green appearance in false-color, near-ultraviolet, green, near-infrared images. The ridges that surround the tiger stripes are often covered in coarse-grained, crystalline water ice. Nearly the entire surface of Enceladus is covered in a blanket of fine-grained water ice. Composition Īnother aspect that distinguishes the tiger stripes from the rest of the surface of Enceladus are their unusual composition. Surface age estimates based on crater counting yielded an age of 4–100 million years assuming a lunar-like cratering flux and 0.5-1 million years assuming a constant cratering flux. Virtually no impact craters have been found on or near the tiger stripes, suggesting a very young surface age. On the anti-Saturnian hemisphere, the stripes terminate in hook-shaped bends, while the sub-Saturnian tips bifurcate dendritically. The ends of each tiger stripe differ in appearance between the anti-Saturnian and sub-Saturnian hemisphere. The stripes are spaced approximately 35 kilometers apart. However, their correlation with internal heat and a large, water vapor plume suggests that tiger stripes might be the result of fissures in Enceladus' lithosphere. Given their appearance and their geologic setting within a heavily tectonically deformed region, the tiger stripes are likely to be tectonic fractures. The flanking ridges are, on average, 100 meters tall and 2–4 kilometers wide. On average, each tiger stripe depression is 130 kilometers long, 2 kilometers wide, and 500 meters deep. Images from the ISS camera onboard Cassini revealed the 4 tiger stripes to be a series of sub-parallel, linear depressions flanked on each side by low ridges. Baghdad and Damascus sulci are the most active, while Alexandria Sulcus is the least active.Ĭomposite map of the southern hemisphere of Enceladus (2007) Accordingly, in November 2006, the tiger stripes were assigned the official names Alexandria Sulcus, Cairo Sulcus, Baghdad Sulcus and Damascus Sulcus (Camphor Sulcus is a smaller feature that branches off Alexandria Sulcus). Enceladean sulci (subparallel furrows and ridges), like Samarkand Sulci and Harran Sulci, have been named after cities or countries referred to in The Arabian Nights. The name tiger stripes is an unofficial term given to these four features based on their distinctive albedo. Observations from the Composite Infrared Spectrometer (CIRS) instrument showed the tiger stripes to have elevated surface temperatures, indicative of present-day cryovolcanism on Enceladus centered on the tiger stripes. These observations revealed the tiger stripes to be low ridges with a central fracture. Higher resolution observations were obtained by Cassini's various instruments during a close flyby of Enceladus on July 14, 2005. First observed on by the Cassini spacecraft's Imaging Science Sub-system (ISS) camera (though seen obliquely during an early flyby), the features are most notable in lower resolution images by their brightness contrast from the surrounding terrain. The tiger stripes of Enceladus consist of four sub-parallel, linear depressions in the south polar region of the Saturnian moon. The tiger stripes, from lower left to upper right, are the Damascus, Baghdad, Cairo, Alexandria and Camphor sulci. Nans Laborde-Jourdàa’s Boléro, about a man who returns to his hometown to visit his mother, won both the Leitz Cine discovery prize and the Canal+ Award for best short film.Cassini view of Enceladus's south pole. Iris Kaltenbäck took the SACD award of the French authors and screenwriters association, for her script to her feature The Rapture.įrench distributor Pyramide Films took the Gan Foundation Award for distribution for taking on Amjad Al-Rasheed’s debut feature Inshallah a Boy, the first Jordanian film ever selected for Cannes. Jovan Ginić took the Louis Roederer Foundation rising star award for his performance in Vladimir Perišić’s Lost Country, a period drama set in 1996 in what was then Yugoslavia. The French Touch Prize of the Jury, which last year went to Charlotte Wells’ breakout Aftersun, was awarded this year to Paloma Sermon-Daï’s It’s Raining in the House, a Belgian-set drama about two teenagers whose mother leaves them to their own devices in a run-down house for the summer. Venice 2021 Golden Lion winner Audrey Diwan ( Happening) headed up the 2023 Critics’ Week jury. Tobias Menzies Joins Brad Pitt in Formula One Apple MovieĪs a feature debut, Tiger Stripes is also up for Cannes’ Camera d’Or prize for best first film.
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