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Speedy robots gather spectra for sky surveys

Science for just $15 USD. Summary The Sloan Digital Sky Survey (SDSS) has, for more than 20 years, pioneered collecting spectra from millions of astronomical objects, from nearby stars to supermassive black holes. But this year, the survey is making a change: Instead of employing a small team of technicians for the daily chore of plugging optical fibers into preprepared plates so that when placed in the telescope they collect light from exactly the right position in the sky, the SDSS is going robotic. For the project s upcoming fifth set of surveys, plug plates are being replaced by 500 tiny robot arms, each holding fiber tips, that patrol a small area of the telescope s focal plane. They can be reconfigured for a new sky map in 2 minutes. Although such robot spectrographs have been built before, the SDSS is part of a rush to retrofit robots to older telescopes so astronomers can grab spectra from the wealth of interesting objects that will soon be streaming from new imaging survey

Sloan digital sky surveyஸ்லோன் டிஜிட்டல் வானம் கணக்கெடுப்பு

Robots are speeding up the most boring job in astronomy

Share Hundreds of fibers, arranged by hand, capture light at the Sloan Digital Sky Survey’s New Mexico telescope. DAN LONG/APACHE POINT OBSERVATORY Astronomy surveys aim to up the pace with army of tiny robots Feb. 3, 2021 , 3:25 PM It was one of the stranger and more monotonous jobs in astronomy: plugging optical fibers into hundreds of holes in aluminum plates. Every day, technicians with the Sloan Digital Sky Survey (SDSS) prepped up to 10 plates that would be placed that night at the focus of the survey’s telescopes in Chile and New Mexico. The holes matched the exact positions of stars, galaxies, or other bright objects in the telescopes’ view. Light from each object fell directly on a fiber and was whisked off to a spectrograph, which split the light into its component wavelengths, revealing key details such as what the object is made of and how it is moving.

United statesMilky wayMagallanesy antaica chilenaNew mexicoApache point observatoryEric bellmRichard ellisJuna kollmeierDaniel cleryScott tragerEurope gaiaVerac rubinUniversity college londonUniversity of washingtonSloan digital sky surveySloan digital sky survey new mexico

The Milky Way looks deceptively flat, but it s actually warped

In every image of the Milky Way you have probably ever seen, it seems to be a flat, serene swirl suspended in the darkness of space. You would probably never guess that another galaxy nearly ran into it 3 billion years ago. Living in a warped galaxy sounds like existing in the Star Trek universe as opposed to this one, but science can back it up. It hasn’t exactly been a secret among astronomers and astrophysicists. Now, new research has gotten the closest look yet at the warp in the Milky Way. Astronomer Xinlun Cheng, of the University of Virginia, and his team now got a closer look with data from the Sloan Digital Sky Survey and Gaia, following the warp through different groups of stars. This revealed that this irregularity in our deceptively flat-looking spiral galaxy travels all the way around it every 440 million years.

United statesXinlun chengSloan digital skyUniversity of virginiaAmerican astronomical societyMilky wayStar trekAstronomer xinlun chengSloan digital sky surveyஒன்றுபட்டது மாநிலங்களில்ஸ்லோன் டிஜிட்டல் வானம்பல்கலைக்கழகம் ஆஃப் வர்ஜீனியாஅமெரிக்கன் வானியல் சமூகம்பால் வழிநட்சத்திரம் மலையேற்றம்ஸ்லோன் டிஜிட்டல் வானம் கணக்கெடுப்பு

Гигантский боковой удар исказил нашу галактику Млечный Путь

Гигантский боковой удар исказил нашу галактику Млечный Путь
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United statesUniversity of astronomyGaia european space agencySloan digital skyAmerican astronomical societyApple computersGalaxy exuding theGalaxy exuding the way thisSloan digital sky surveyEuropean spacecraft gaiaExuding the wayScientists haveObservatory apache pointLacteal pathIndividuals facingApple computers are

В Италии ограничили доступ к TikTok после гибели ребёнка из-за «челленджа»

В Италии ограничили доступ к TikTok после гибели ребёнка из-за «челленджа»
regnum.ru - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from regnum.ru Daily Mail and Mail on Sunday newspapers.

Sloan digital skyBeds haveGalaxy exuding theGalaxy exuding the way thisSloan digital sky surveyEuropean spacecraft gaiaஸ்லோன் டிஜிட்டல் வானம்ஸ்லோன் டிஜிட்டல் வானம் கணக்கெடுப்பு