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İzahExotic Atmospheres.jpg
English: The new finding follows the detection of these same organic molecules in the atmosphere of another hot, giant planet, called HD 189733b, by astronomers using Hubble and Spitzer data. Astronomers can now begin comparing the chemistry and dynamics of these two planets, and search for similar measurements of other candidate exoplanets, advancing toward the goal of being able to characterize planets where life could exist.
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HD 209458 b
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This artist's concept shows a cloudy Jupiter-like planet that orbits very close to its fiery hot star. NASA's Spitzer Space Telescope was recently used to capture spectra, or molecular fingerprints, of two "hot Jupiter" worlds like the one depicted here. This is the first time a spectrum has ever been obtained for an exoplanet, or a planet beyond our solar system.
The ground-breaking observations were made with Spitzer's spectrograph, which pries apart infrared light into its basic wavelengths, revealing the "fingerprints" of molecules imprinted inside. Spitzer studied two planets, HD 209458b and HD 189733b, both of which were found, surprisingly, to have no water in the tops of their atmospheres. The results suggest that the hot planets are socked in with dry, high clouds, which are obscuring water that lies underneath. In addition, HD209458b showed hints of silicates, suggesting that the high clouds on that planet contain very fine sand-like particles.
Capturing the spectra from the two hot-Jupiter planets was no easy feat. The planets cannot be distinguished from their stars and instead appear to telescopes as single blurs of light. One way to get around this is through what is known as the secondary eclipse technique. In this method, changes in the total light from a so-called transiting planet system are measured as a planet is eclipsed by its star, vanishing from our Earthly point of view. The dip in observed light can then be attributed to the planet alone.
This technique, first used by Spitzer in 2005 to directly detect the light from an exoplanet, currently only works at infrared wavelengths, where the differences in brightness between the planet and star are less, and the planet's light is easier to pick out. For example, if the experiment had been done in visible light, the star is so much brighter than the planet that the total light from the system would appear to be unchanged, even as the planet disappeared from view.
To capture spectra of the planets, Spitzer observed their secondary eclipses with its spectrograph. It took a spectrum of a star together with its planet, then, as the planet disappeared from view, a spectrum of just the star. By subtracting the spectrum of the star from the spectrum of the star and planet together, astronomers were able to determine the spectrum of the planet itself.
The basic chemistry for life has been detected in a second hot gas planet, HD 209458b, depicted in this artist's concept. Two of NASA's Great Observatories - the Hubble Space Telescope and Spitzer Space Telescope, yielded spectral observations that revealed molecules of carbon dioxide, methane and water vapor in the planet's atmosphere. HD 209458b, bigger than Jupiter, occupies a tight, 3.5-day orbit around a sun-like star about 150 light years away in the constellation Pegasus. Planets like this one, which circle stars beyond our sun, are called exoplanets.
Mənbə
Spitzer Space Telescope
IIM versiya
2
Dekabr 25, 2022
fayl, exotic, atmospheres, fayl, faylın, tarixçəsi, istifadə, edilən, səhifələr, faylın, qlobal, istifadəsi, metaməlumatlarsınaq, göstərişi, ölçüsü, piksel, digər, ölçülər, piksel, piksel, piksel, piksel, piksel, piksel, faylın, orijinalı, 8206, piksel, fayl, . Fayl Faylin tarixcesi Istifade edilen sehifeler Faylin qlobal istifadesi MetamelumatlarSinaq gosterisi olcusu 750 600 piksel Diger olculer 300 240 piksel 600 480 piksel 960 768 piksel 1 280 1 024 piksel 2 560 2 048 piksel 3 000 2 400 piksel Faylin orijinali 8206 3 000 2 400 piksel fayl hecmi 1 93 MB MIME novu image jpeg Bu fayl Vikimedia Commons dadirve diger layihelerde istifade edile biler Faylin tesvir sehifesine get Xulase IzahExotic Atmospheres jpg English The new finding follows the detection of these same organic molecules in the atmosphere of another hot giant planet called HD 189733b by astronomers using Hubble and Spitzer data Astronomers can now begin comparing the chemistry and dynamics of these two planets and search for similar measurements of other candidate exoplanets advancing toward the goal of being able to characterize planets where life could exist Tarix 20 fevral 2007 15 25 03Menbe http www nasa gov mission pages spitzer multimedia spitzer 20091020 htmlMuellif NASA Lisenziya Public domain Public domain false falseThis file is in the public domain in the United States because it was solely created by NASA NASA copyright policy states that NASA material is not protected by copyright unless noted See Template PD USGov NASA copyright policy page or JPL Image Use Policy Warnings Use of NASA logos insignia and emblems is restricted per U S law 14 CFR 1221 The NASA website hosts a large number of images from the Soviet Russian space agency and other non American space agencies These are not necessarily in the public domain Materials based on Hubble Space Telescope data may be copyrighted if they are not explicitly produced by the STScI 1 See also PD Hubble and Cc Hubble The SOHO ESA amp NASA joint project implies that all materials created by its probe are copyrighted and require permission for commercial non educational use 2 Images featured on the Astronomy Picture of the Day APOD web site may be copyrighted 3 The National Space Science Data Center NSSDC site has been known to host copyrighted content Its photo gallery FAQ states that all of the images in the photo gallery are in the public domain Unless otherwise noted CaptionsazerbaycancaAdd a one line explanation of what this file representsItems portrayed in this filetesvir ediryaranma tarixi20 fevral 2007 Faylin tarixcesi Faylin evvelki versiyasini gormek ucun gun tarix bolmesindeki tarixlere klikleyin Tarix VaxtKicik sekilOlculerIstifadeciSerh indiki17 00 27 yanvar 20133 000 2 400 1 93 MB Stas1995 14 17 21 sentyabr 20123 000 2 400 593 KB Stas1995User created page with UploadWizard Istifade edilen sehifeler Bu sekile olan kecidler Planet Faylin qlobal istifadesi Bu fayl asagidaki vikilerde istifade olunur ar wikipedia org layihesinde istifadesi مشتري حار bat smg wikipedia org layihesinde istifadesi Planeta ca wikipedia org layihesinde istifadesi HD 209458 b el wikipedia org layihesinde istifadesi HD 209458 b en wikipedia org layihesinde istifadesi Wikipedia Today s featured article August 2008 Wikipedia Today s featured article August 24 2008 User DubaiTerminator Portal Outer space Selected article Portal Outer space Selected article 39 es wikipedia org layihesinde istifadesi Jupiter caliente fa wikipedia org layihesinde istifadesi مشتری داغ fr wikipedia org layihesinde istifadesi HD 189733 b Planete fr wikinews org layihesinde istifadesi La NASA a detecte des atmospheres seches et poussiereuses sur des planetes extrasolaires fr wikiquote org layihesinde istifadesi Planete haw wikipedia org layihesinde istifadesi Hōku hele id wikipedia org layihesinde istifadesi Wikipedia Artikel pilihan Daftar artikel pilihan 2015 Wikipedia Artikel Pilihan 19 2015 it wikipedia org layihesinde istifadesi HD 209458 b Portale Astronomia Attualita Archivio ko wikipedia org layihesinde istifadesi 목성형 행성 HD 209458 b 뜨거운 목성 lt wikipedia org layihesinde istifadesi Karstasis Jupiteris ms wikipedia org layihesinde istifadesi Planet Musytari panas mwl wikipedia org layihesinde istifadesi Planeta no wikipedia org layihesinde istifadesi Hot Jupiter pl wikipedia org layihesinde istifadesi Migracja planetarna Wikipedysta Marzencia87 brudnopis pl wikinews org layihesinde istifadesi 2009 10 24 Czy na Ozyrysie jest zycie pl wiktionary org layihesinde istifadesi ग रह si wikipedia org layihesinde istifadesi ස රග රහ මණ ඩලය ත ළ ජ වය sk wikipedia org layihesinde istifadesi HD 209458b te wikipedia org layihesinde istifadesi గ రహ th wikipedia org layihesinde istifadesi dawphvhsbdirxn tr wikipedia org layihesinde istifadesi HD 209458 b Sicak Jupiter zh wikipedia org layihesinde istifadesi 熱木星 Talk 熱木星Metamelumatlar Bu faylda fotoaparat ve ya skanerle elave olunmus melumatlar var Eger fayl sonradan redakte olunubsa bezi parametrler bu sekilde gosterilenlerden ferqli ola biler Sekil basligiThis artist s concept shows a cloudy Jupiter like planet that orbits very close to its fiery hot star NASA s Spitzer Space Telescope was recently used to capture spectra or molecular fingerprints of two amp quot hot Jupiter amp quot worlds like the one depicted here This is the first time a spectrum has ever been obtained for an exoplanet or a planet beyond our solar system The ground breaking observations were made with Spitzer s spectrograph which pries apart infrared light into its basic wavelengths revealing the amp quot fingerprints amp quot of molecules imprinted inside Spitzer studied two planets HD 209458b and HD 189733b both of which were found surprisingly to have no water in the tops of their atmospheres The results suggest that the hot planets are socked in with dry high clouds which are obscuring water that lies underneath In addition HD209458b showed hints of silicates suggesting that the high clouds on that planet contain very fine sand like particles Capturing the spectra from the two hot Jupiter planets was no easy feat The planets cannot be distinguished from their stars and instead appear to telescopes as single blurs of light One way to get around this is through what is known as the secondary eclipse technique In this method changes in the total light from a so called transiting planet system are measured as a planet is eclipsed by its star vanishing from our Earthly point of view The dip in observed light can then be attributed to the planet alone This technique first used by Spitzer in 2005 to directly detect the light from an exoplanet currently only works at infrared wavelengths where the differences in brightness between the planet and star are less and the planet s light is easier to pick out For example if the experiment had been done in visible light the star is so much brighter than the planet that the total light from the system would appear to be unchanged even as the planet disappeared from view To capture spectra of the planets Spitzer observed their secondary eclipses with its spectrograph It took a spectrum of a star together with its planet then as the planet disappeared from view a spectrum of just the star By subtracting the spectrum of the star from the spectrum of the star and planet together astronomers were able to determine the spectrum of the planet itself MuellifSpitzer Space TelescopeSahibinin muelliflik huququhttp www spitzer caltech edu Media mediaimages copyright shtmlOrijinal tarix ve vaxt20 oktyabr 2009Genislik3 000 pxHundurluk2 400 pxBits per component8 8 8SixilmamisLZWReng modeliRGBOrientasiyaNormalReng komponentlerinin sayi3Ufuqi xett300 dpiSaquli xett300 dpiData arrangementchunky formatProqram teminatiAdobe Photoshop CS3 MacintoshFaylin deyismesi tarixi ve vaxti14 53 5 iyun 2009Reng sahesisRGBElaqe melumatihttp www spitzer caltech edu 1200 E California Blvd Pasadena CA 91125 USAQisa basliqExotic AtmospheresTemin ediciNASA JPL Caltech T Pyle SSC BasliqThe basic chemistry for life has been detected in a second hot gas planet HD 209458b depicted in this artist s concept Two of NASA s Great Observatories the Hubble Space Telescope and Spitzer Space Telescope yielded spectral observations that revealed molecules of carbon dioxide methane and water vapor in the planet s atmosphere HD 209458b bigger than Jupiter occupies a tight 3 5 day orbit around a sun like star about 150 light years away in the constellation Pegasus Planets like this one which circle stars beyond our sun are called exoplanets MenbeSpitzer Space TelescopeIIM versiya2 Menbe https az wikipedia org wiki Fayl Exotic Atmospheres jpg, wikipedia, oxu, kitab, kitabxana, axtar, tap, hersey,
ne axtarsan burda
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