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Scientists have discovered a planet about as large as Neptune that circles a nearby star which is still surrounded by a disk of debris left over from its formation.
Using data from NASA’s Transiting Exoplanet Survey Satellite (TESS) and retired Spitzer Space Telescope, the discovery, published in the journal Nature, makes the system a touchstone for understanding how stars and planets form and evolve.
The planet circles the young star, AU Microscopii, in just over a week.
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The system, known as AU Mic for short, provides a one-of-a-kind laboratory for studying how planets and their atmospheres form, evolve and interact with their stars.
“AU Mic is a young, nearby M dwarf star. It’s surrounded by a vast debris disk in which moving clumps of dust have been tracked, and now, thanks to TESS and Spitzer, it has a planet with a direct size measurement,” said study co-author, Bryson Cale, a doctoral student at George Mason University in Fairfax, Virginia, US.
“There is no other known system that checks all of these important boxes.”
AU Mic is a cool red dwarf star with an age estimated at 20 million to 30 million years, making it a stellar infant compared to our Sun, which is at least 150 times older.
The star is so young that it primarily shines from the heat generated as its own gravity pulls it inward and compresses it.
Less than 10 per cent of the star’s energy comes from the fusion of hydrogen into helium in its core, the process that powers stars like our Sun.
The system is located 31.9 light-years away in the southern constellation Microscopium.
It is part of a nearby collection of stars called the Beta Pictoris Moving Group, which takes its name from a bigger, hotter A-type star that harbors two planets and is likewise surrounded by a debris disk.
Although the systems have the same age, their planets are markedly different. The planet AU Mic b almost hugs its star, completing an orbit every 8.5 days.
It weighs less than 58 times Earth’s mass, placing it in the category of Neptune-like worlds.
Beta Pictoris b and c, however, are both at least 50 times more massive than AU Mic b and take 21 and 3.3 years, respectively, to orbit their star.
“We think AU Mic b formed far from the star and migrated inward to its current orbit, something that can happen as planets interact gravitationally with a gas disk or with other planets,” said co-author Thomas Barclay, an associate research scientist at the University of Maryland, Baltimore County.
“By contrast, Beta Pictoris b’s orbit doesn’t appear to have migrated much at all. The differences between these similarly aged systems can tell us a lot about how planets form and migrate,” said Barclay who is also an associate project scientist for TESS at NASA’s Goddard Space Flight Center in Greenbelt, Maryland. (IANS)
The Centre on Wednesday directed all Union Ministries and Departments to clear Air India's dues immediately. An office memorandum from the Finance Ministry's Department of Expenditure said: "Recently, the Government of India has decided to disinvest Air India, and the process of disinvestment of Air India and Air India Express is ongoing.""Air India has stopped extending credit facilities on account of purchase of air tickets. Therefore, all Ministries or Departments are directed to clear Air India's dues immediately." "Air tickets from Air India may be purchased in cash till further instructions."
In 2009, the Centre had mandated that Central government officers travel via Air India for all official purposes including availing of LTC. On Monday, conglomerate Tata Group entered into a share purchase agreement with the Central government for buying out the latter's stake in national carrier Air India, Air India Express, and AISATS.
Earlier, a Letter of Intent was issued to the Tata Group. After the SPA, Tata Group would need to fulfill the conditions precedent in the agreement before taking over the airline. The rest of the transaction is expected to be completed by December.
Tata Sons' subsidiary Talace emerged as the highest bidder for the national carrier under the divestment process. Talace had quoted an enterprise value of Rs 18,000 crore for 100 per cent equity shareholding of the Centre in Air India along with that of Air India Express and AISATS. (IANS/ MBI)
Keywords: India, air India, ministers, government, purchase, dues, Tata group, centre
Sports betting has been around for centuries for the audience to not only watch the sport but to get more deeply involved in the match. It is a fun and often profitable activity for the viewer to win some extra fortune or simply get some extra sweat while watching the game. At first glance, sports betting may look like it's pure luck, but when you indulge deeper into the activity you realize it is more of a calculative and research activity than just pure luck. We must note that yes, luck does play a certain role to some extend but a win is not completely dependent on luck, if you're putting your bets on a certain team you have to make sure to do some research about the players on the team, history of wins and losses of the team and compare the probability of winning and then place bets.
Even though sports betting has existed since the ancient era, it was not until recently that it became increasingly popular among the youth. This happened due to the legalization of the activity and the rise of online sports betting. The technological revolution has expanded the sports betting industry, offering the bettors new markets and ways to bet. The only major difference between online bookmarkers and traditional brick-and-mortar venues of sports betting is that now you can place bets online from your mobile devices, laptops, computers etc.
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Online sports betting allows the sports enthusiastic bettors to place their sports bet online from wherever they are on real-life happening sports events. For instance, if there is a match between Chelsea F.C. and Machester United in the English Premier League, you can place wagers on either of the team to win from your comfort space, on your device and if you correctly predict the outcome, you'll win money.
How to Bet on Sports?
Sport betting gives more thrill and involvement in the sport to the bettor.Istockphoto
Now that you understand the basic mechanism of sports betting, how and where should you place your bets? For new bettors, sports betting can be a little intimidating because you're putting real money as stakes and no one wants to lose it. Here are the steps to place your sports bets online:
Choose a betting site: The first step to placing your sports bets is to find a reliable sports betting site. BetRivers sportsbook is one of the most popular sports betting sites in the US which also has a mobile app. It has a solid design with intuitive navigation, user friendly and polished layout.
Sign up: After choosing the website, you must sign up and provide simple details like your name, email address, age etc. to verify your proof of identity and if you're legally allowed to start betting in the state or not.
Deposit money in your online sportsbook: Once you've registered an account, you can immediately deposit some money and place your bets on the sport of your choice. Most online sports betting platforms accept numerous deposit methods. BetRivers accepts various methods like online banking, Paypal, Visa, Mastercard, pay+, etc; and withdrawing money is as simple as depositing the amount.
ALSO READ: The Growth of The Sports Betting Market
Locate the market: Before placing your first bet, pinpoint the sports you want to place bets on, then select specific competitions or leagues that interests you the most. Then you need to find a team you want to bet on. Do some research on the odds and market. Once you've made up your mind you can bet your money on your prediction.
Place your first bet: Once you're certain about your bet, you're required to enter the amount you want to bet. Most sites give you a preview of how much a bettor stands to win in the bet slip. If you're satisfied with the odds, you can happily hit the button to confirm your bet and wait for the results.
Enjoy the game: The bet has been placed, the game has started, now all you need to do is sit back, relax and watch the game and let your bet come in.
Disclaimer: (This article is sponsored and includes some commercial links)
It is indeed good news that the book showcasing the wisdom of India in the eyes of Western intellectuals is getting due recognition and appreciation from other states and abroad. After Karnataka and Punjab, the Government of Assam has recently consented to translate the research-based book by Shillong-based author - Shri Salil Gewali titled "Great Minds on India". The Chief Minister of Assam - Shri Himanta Biswa Sarma was amazed to know that so many top western scientists and philosophers have drawn a considerable amount of inspiration from ancient scriptures of India, particularly in the studies of modern physics, linguistic and astronomy. In the recent meeting with the author, the Chief Minister had highly appreciated Gewali's book and promised to read it thoroughly. Gewali's book was also approved for translation in the year 2020 by the former Chief Minister – Shri Sarbananda Sonowal but due to COVID-19, the translation work was delayed.
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Furthermore, the two scholars from Canada --- Dr Hema Murty -- Air Space Engineer at the University of Toronto, and Dr. Harsh H Thakkar of Sheridan College of Brampton, Ontario have sought permission from Mr. Gewali for the translation of 'Great Minds on India' into the Sanskrit language. After the translation, the Sanskrit edition will be published and circulated and utilized by Samskrita Bharati of Canada, besides its other branches in India, USA and UK. Gewali says that the book that has been praised by countless scholars and publication by the Government of Karnataka and Punjab has so far been translated into thirteen languages, including German.
'Great Minds of India' by Salil Gewali is an impressive compact book discussing the power that Indian ancient wisdomFile
A university scholar from Winchester, United Kingdom - Ms. Janet Murphy remarks:
" 'Great Minds of India' by Salil Gewali is an impressive compact book discussing the power that Indian ancient wisdom, thought and way of life had an impact on western minds, especially those who are of great historical significance, such as Voltaire, Albert Einstein, Ralph Emerson, Julius Robert Oppenheimer, Mark Twain, HG Wells et al. It is hoped all right-thinking scholars will find Gewali's work extremely applaudable."