Normally, it's hard to tell if a star is truly bright or simply close, truly dim or simply very far away. The research team at the National Astronomical Observatories of Chinese Academy of Sciences (NAOC), led by Chen Xiaodian, had to employ a new catalog of variable stars known as classical Cepheids.
The paper, published in Nature Astronomy on February 4, details work by Australian and Chinese astronomers to examine the classical "Cepheids" - a collection of huge, young stars in the Milky Way that can be up to 100,000 times brighter than the sun. They show day- to month-long pulsations, which are observed as changes in their brightness. Until very recently, it has been very hard for scientists to visualize what the Milky Way looks like given that we are embedded inside it.
It turns out our Milky Way galaxy is truly warped, at least around the far edges. Astronomers think the twisted nature of the outer disk is caused by rotational forcing generated by the dense inner regions of the Milky Way.
"It is notoriously hard to determine distances from the Sun to parts of the Milky Way's outer gas disk without having a clear idea of what that disk actually looks like", said Chinese Academy of Sciences astronomer Dr. Xiaodian Chen, lead author of the study. These stars providing high distance accuracy were used as primary distance indicators to develop an intuitive and accurate three-dimensional picture of the galaxy.
Artist's impression of the warped and twisted Milky Way disk.
The new map, produced by astronomers from Macquarie University in Australia and the Chinese Academy of Sciences, shows that the warped Milky Way disk also contains young stars.
A new map of the Milky Way Galaxy reveals its true shape.
The billions of star and galactic bodies that make up a galaxy rotate around its center, making a complete orbit once every few hundred million years, according to Eureka Alert. You can see their final plot in the video below, published in Nature Astronomy. Furthermore, they also fit in with observations of a handful of other galaxies that display progressively twisted spiral patterns in their outer regions.
Scientists have found similar warped shapes among the outer regions of other spiral galaxies.
This is the mysterious invisible material that provides the gravitational "glue" that holds galaxies together.
"Somewhat to our surprise, we found that in 3D, our collection of 1,339 Cepheid stars and the Milky Way's gas disk follow each other closely", Professor de Grijs said.
The resulting resource enabled the team to predict that the hydrogen gas in the outer reaches of the disk was not confined to a thin plane but would actually appear like a warped S-shape if observed from a distance.
The death toll may rise as rescuers search for survivors and some of the wounded are in critical condition, Osman said. Formosa, a Maltese national, was the manager at Bossasso for P&O Ports, a subsidiary of the Dubai-based DP World.
Back in 2017, the All-Star point guard signed a four-year, $170 million contract extension that is set to kick in next season . And Achilles injuries are known to be hard to return from at all, let alone do so at the skill level held prior.
The Times said prosecutors appeared to be interested in whether any foreigners illegally donated to the committee. Neither Zuberi nor anyone else involved with the committee has been accused of any criminal wrongdoing.
It wasn't until Saturday that Maddie , a junior in college , uncovered a mystery she and her roommates thought was a ghost. Maddie said she stayed with Swofford for about 10 minutes before her boyfriend arrive and he fled the building.
Investment for emissions regulations, reduced sales forecasts and Brexit uncertainty were cited as reasons for the decision. It is another sign of the decline of British automotive manufacturing, on which Fleet Europe reported last week .
They also save about $6.1 million in tax payments this season and get off the $15.6 million Knight is owed next season. In Cleveland's fourth in-season trade, the Cavs have now gathered two first-round and six second-round picks.
Within minutes, Foles informed the team that he was voiding the option, a source told ESPN's Adam Schefter . ESPN's Chris Mortensen went as far as saying he believes the Eagles would prefer to trade him to the Jags .
Barnes signed a four-year $94 million contract with the Mavericks and has a $25 million player-option for the 2019-20 season. Barnes, 26, is earning a base salary of $24.1 million with a cap hit of $24,793,702 and a dead cap value of $49,209,769.
According to Krunal, it was a combination of poor bowling and great batting by the Black Caps that led to India's defeat. India won the toss and opted to bowl first in the opening Twenty20 match against New Zealand in Wellington on Wednesday.
Foul ball killed woman at Dodger Stadium
Goldbloom, a mother of three and grandmother of seven, was a "true fan" of the Dodgers , her daughter said. The trajectory of the ball was such that it cleared the protective netting and struck Goldbloom's head.
Spotify Acquires Gimlet Media, Anchor in Podcast Push
Anchor will bring its platform of tools for podcast creators and its established and rapidly growing creator base. In Ek's blog today he stated that "This opportunity starts with the next phase of growth in audio - podcasting".
Miami Heat agree to trade Tyler Johnson to Phoenix Suns
He will make just over $20 million this season and just over $21 million next season before becoming an unrestricted free agent. Johnson, 26, is averaging 10.8 points, 2.8 rebounds and 2.5 assists per game in 44 games this season, 10 of them starts.
Is Apex Legends available on console?
Given how EA has repeatedly said that this is a "premium" game, that rules out this being a small, indie-ish title. Will you still play it even if it doesn't have walljumping and titans?
Nintendo is making a 'Dr
Looking to the quality of Nintendo's past mobile efforts, this will likely be good news for players in the end. The company says the Mario Kart Tour app will be delayed until summer 2019 but didn't specify a month or date.
College student finds man in her closet
What alarms Maddie and her roommates is that this is not the first time a stranger had been inside their apartment. She said she notified her leasing office after discovering two men in the living room on December 19.
Lakers have shown an interest in Chicago's Jabari Parker
However, New Orleans could be interested in the Knicks' lottery pick, if NY lands the No. 1 overall pick in June's draft lottery. Also, Parker is still only 23 and perhaps the Lakers believe LA will be his first true National Basketball Association home.