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Yaël Nazé
Yaël Nazé is a Belgian astrophysicist, author and professor at the University of Liège. She specializes in massive stars and their interactions with their surroundings. In her research, she has worked with images and data collected from various space telescopes and has worked on creating new observation satellites. Nazé is also engaged in outreach to educate the general public about space, notably planetary science. She has written several books and articles that connect astronomy to other aspects of human culture, such as archaeology and art (painting, music). Her efforts in science communication as well as research have been recognized with awards by several organizations. Early life and education Yaël Nazé was born in Baudour, Belgium in 1976. By the age of 10, she knew that she wanted she wanted to become an astrophysicist after observing constellations from her home in Borinage and reading about the astronomy in the newspapers. Early in her last year of seconda ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Borinage
The Borinage () is an area in the Walloon province of Hainaut in Belgium. The name derives from the coal mines of the region, ''bores'', meaning mineshafts. In French, the inhabitants of the Borinage are called Borains. The provincial capital, Mons, is located in the east of the Borinage, but there was a great sociological difference between the inhabitants of Mons and the Borains of the villages around Mons. Rise and fall of coal "From the 18th century to 1850, the economy of thirty municipalities in the Borinage was founded on coal mining. Between 1822 and 1829, production more than doubled in that region i.e. from 602,000 to 1,260,000 tons. That was more than the total production of France and Germany at the time. The Borinage exported its coal mostly to France and Flanders." In 1878, several fossils of iguanodons were found: this find was unique because complete skeletons were present. When this area was occupied by the Germans in World War I, a few attempts were made ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
XMM-Newton
''XMM-Newton'', also known as the High Throughput X-ray Spectroscopy Mission and the X-ray Multi-Mirror Mission, is an X-ray space observatory launched by the European Space Agency in December 1999 on an Ariane 5 rocket. It is the second cornerstone mission of ESA's Horizon 2000 programme. Named after physicist and astronomer Sir Isaac Newton, the spacecraft is tasked with investigating interstellar X-ray sources, performing narrow- and broad-range spectroscopy, and performing the first simultaneous imaging of objects in both X-ray and optical ( visible and ultraviolet) wavelengths. Initially funded for two years, with a ten-year design life, the spacecraft remains in good health and has received repeated mission extensions, most recently in March 2023 and is scheduled to operate until the end of 2026. ESA plans to succeed ''XMM-Newton'' with the Advanced Telescope for High Energy Astrophysics (ATHENA), the second large mission in the Cosmic Vision 2015–2025 plan, to be launc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Be Star
Be stars are a heterogeneous set of stars with B spectral types and emission lines. A narrower definition, sometimes referred to as ''classical Be stars'', is a non-supergiant B star whose spectrum has, or had at some time, one or more Balmer emission lines. Definition and classification Many stars have B-type spectra and show hydrogen emission lines, including many supergiants, Herbig Ae/Be stars, mass-transferring binary systems, and B stars. It is preferred to restrict usage of the term Be star to non-supergiant stars showing one or more Balmer series lines in emission. These are sometimes referred to as classical Be stars. The emission lines may be present only at certain times. Although the Be type spectrum is most strongly produced in class B stars, it is also detected in O and A shell stars, and these are sometimes included under the "Be star" banner. Be stars are primarily considered to be main sequence stars, but a number of subgiants and giant stars are also ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
X-ray Telescopes
An X-ray telescope (XRT) is a telescope that is designed to observe remote objects in the X-ray spectrum. X-rays are absorbed by the Earth's atmosphere, so instruments to detect X-rays must be taken to high altitude by balloons, sounding rockets, and satellites. The basic elements of the telescope are the optics (focusing or collimating), that collects the radiation entering the telescope, and the detector, on which the radiation is collected and measured. A variety of different designs and technologies have been used for these elements. Many X-ray telescopes on satellites are compounded of multiple small detector-telescope systems whose capabilities add up or complement each other, and additional fixed or removable elements (filters, spectrometers) that add functionalities to the instrument. History of X-ray telescopes X-ray telescopes were first used for astronomy to observe the Sun, which was the only source in the sky bright enough in X-rays for those early telescopes to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
You-Hua Chu
You-Hua Chu (朱有花, born in 1953) is a Taiwanese astronomer. She has served as the director of the Institute of Astronomy and Astrophysics, Academia Sinica and the chair of the Department of Astronomy at the University of Illinois at Urbana-Champaign. Her main research areas are interactions between the interstellar medium and stars and observations of planetary systems in the post main sequence stages. Life You-Hua Chu graduated from Taipei First Girls' High School in 1971 and from the Physics Department of National Taiwan University in 1975. In 1981, she obtained a Ph.D. in astronomy from the University of California, Berkeley. From 2005 to 2011, she served as chair of the Department of Astronomy at the University of Illinois at Urbana-Champaign, where she is currently a professor emeritus. In September 2014, You-Hua Chu became the director of the Institute of Astronomy and Astrophysics, Academia Sinica. She was the first female astronomer to fill this position. Y ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Earth
Earth is the third planet from the Sun and the only astronomical object known to Planetary habitability, harbor life. This is enabled by Earth being an ocean world, the only one in the Solar System sustaining liquid surface water. Almost all of Earth's water is contained in its global ocean, covering Water distribution on Earth, 70.8% of Earth's crust. The remaining 29.2% of Earth's crust is land, most of which is located in the form of continental landmasses within Earth's land hemisphere. Most of Earth's land is at least somewhat humid and covered by vegetation, while large Ice sheet, sheets of ice at Polar regions of Earth, Earth's polar polar desert, deserts retain more water than Earth's groundwater, lakes, rivers, and Water vapor#In Earth's atmosphere, atmospheric water combined. Earth's crust consists of slowly moving tectonic plates, which interact to produce mountain ranges, volcanoes, and earthquakes. Earth's outer core, Earth has a liquid outer core that generates a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zeta Puppis
Zeta Puppis (ζ Puppis, abbreviated Zeta Pup, ζ Pup), formally named Naos , is the brightest star in the constellation of Puppis. The spectral class of O4 means this is one of the hottest, and most luminous, stars visible to the naked eye. It is one of the sky's few naked-eye class O-type stars as well as one of the closest to Earth. It is a blue supergiant, one of the most luminous stars in the Milky Way. Visually it is over 10,000 times brighter than the Sun, but its high temperature means that most of its radiation is in the ultraviolet and its bolometric luminosity is over 500,000 times that of the Sun. It is also the 72nd brightest star in terms of apparent magnitude from Earth. It is a runaway star, meaning it has an unusually large space velocity, probably caused by being ejected from a close binary system when its companion exploded as a supernova. Zeta Puppis is typical of O-type stars in having an extremely strong stellar wind, me ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stellar Winds
A stellar wind is a flow of gas ejected from the upper atmosphere of a star. It is distinguished from the bipolar outflows characteristic of young stars by being less collimated, although stellar winds are not generally spherically symmetric. Different types of stars have different types of stellar winds. Post-main-sequence stars nearing the ends of their lives often eject large quantities of mass in massive ( \scriptstyle \dot > 10^ solar masses per year), slow (v = 10 km/s) winds. These include red giants and supergiants, and asymptotic giant branch stars. These winds are understood to be driven by radiation pressure on dust condensing in the upper atmosphere of the stars. Young T Tauri stars often have very powerful stellar winds. Massive stars of types O and B have stellar winds with lower mass loss rates (\scriptstyle \dot 1–2000 km/s). Such winds are driven by radiation pressure on the resonance absorption lines of heavy elements such as carbon and nitrogen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Luminous Blue Variables
Luminous may refer to: Music * Luminous (group), a South Korean boy band * ''Luminous'' (EP), a 2004 EP by Cesium_137 * ''Luminous'' (John Hicks and Elise Wood album), 1985–88 * ''Luminous'' (The Horrors album), 2014 * ''Luminous'', an album by Chris Murphy * ''Luminous'', an album by Bill Nelson, 1991 * ''Luminous'', an album by Scandal, 2024 * "Luminous" (ClariS song), 2012 * "Luminous" (Jedward song), 2012 Other uses * ''Luminous'' (book), a 1998 short story collection by Greg Egan * Luminous (typeface), a foundry type made by Ludwig & Mayer * Luminous flame, a flame emitting visible light * Luminous mind, a term used in Buddhist doctrine * Luminous Mysteries, meditations on the Rosary in the Catholic Church * Luminous Productions, a defunct video game developer ** Luminous Engine, a video game engine * Luminous: The Symphony of Us, a fireworks-based nighttime spectacular at Disney's Epcot theme park * Project Luminous, a project by The Walt Disney Company that became ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spectral Types
''Spectral'' is a 2016 Hungarian-American military science fiction action film co-written and directed by Nic Mathieu. Written with Ian Fried & George Nolfi, the film stars James Badge Dale as DARPA research scientist Mark Clyne, with Max Martini, Emily Mortimer, Clayne Crawford, and Bruce Greenwood in supporting roles. The film is set in a civil war-ridden Moldova as invisible entities slaughter any living being caught in their path. The film was released worldwide on December 9, 2016 on Netflix. On February 1, 2017, Netflix released a prequel graphic novel of the film called ''Spectral: Ghosts of War'' which was made available digitally through the website ComiXology. Plot DARPA researcher Mark Clyne is sent to a US military airbase on the outskirts of Chișinău, to consult his created line of hyperspectral imaging goggles issued to US Army Special Forces led by Army general, Army General James Orland, who is covertly supporting the Government of Moldova, Moldovan gover ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
