The researchers gathered 2,330 Cepheid variables catalogued by an infrared telescope called the Wide-field Infrared Survey Explorer, and whittled down the list to 1,339 stars based on their distance, models of the Milky Way, and other factors. Classical Cepheids are 20 times more massive that the sun and as much as 100,000 times brighter.
Researchers in Australia and China have for the first time unveiled an accurate 3D map of the Milky Way galaxy.
Though past analysis has established that the hydrogen gas in our galaxy takes on a warped shape, questions have remained as to whether stars follow the same shape or not. According to Chao Liu, a study co-author and researcher at the National Astronomical Observatories, the warping seems to be caused by torque induced by the rotation of the inner disk of the galaxy.
"We would need to do (numerical) simulations of a realistic galaxy embedded in a dark matter halo to see if we can reproduce the observations and figure out how this came about", says de Grijs. The new data also add a literal twist to the story, showing that the warp precesses, or turns.
"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.
Our home galaxy, the Milky Way, makes for a pretty space picture, and it looks normal at a distance. Combined with a Cepheid's observed brightness, its pulsation period can be used to obtain a highly accurate distance.
This reminded the team of earlier observations of a dozen other galaxies which also showed such progressively twisted spiral patterns.
This undated image provided by Chinese Academy of Sciences shows the Artist's impression of the Milky Way. Astronomers from Macquarie University and the Chinese Academy of Sciences have used 1339 "standard" stars to map the real shape of our home galaxy in a paper published in Nature Astronomy today.
This is the mysterious invisible material that provides the gravitational "glue" that holds galaxies together.
"This new morphology provides a crucial updated map for studies of our galaxy's stellar motions and the origins of the Milky Way's disk", says Dr. DENG Licai, senior researcher at NAOC and co-author of the paper. They assumed that like the neighboring Andromeda, Milky Way is a neat flat disk with orderly spiral arms.
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.
He has, of course, added his two cents about where he'd like to see his son traded if it were to happen. Well, that won't be happening if LaVar has anything to say about it. "It's time for something new".
Maddie , of North Carolina , US, who preferred not to reveal her surname, said she first heard a noise coming from the closet. The college student opened the door to the walk-in closet to find a man with long blonde hair inside, wearing her clothes.
Big Music Tour confirmed they were bring Kelly down under to play Auckland's Trusts Arena on Friday February 15. A representative for the singer did not immediately respond to PEOPLE's request for comment.
The actor conceded that, but said he did ask those other questions of his friend who he said has since died. Liam continued: "I went up and down areas with a cosh, hoping I'd be... approached by somebody".
Republican National Committee spokesman Mike Reed accused Warren of apologizing at a time that was politically convenient. And for harm caused. "Nothing about my background ever had anything to do with any job I got in any place", she said .
Eden Hazard is set to inform Chelsea FC that he wants to move to Real Madrid in the summer, according to a report in England. The Belgium worldwide , who is yet to sign a new deal with Chelsea , has less than a year remaining on his contract.
If he is ruled out for four weeks, that would see him missing Six Nations matches against both Scotland and Italy this month. Quinn Roux and Ultan Dillane will battle it out to replace Toner, with Munster's Billy Holland already drafted in as cover.
The amount Spotify is looking to spend on podcast companies is greater than a year of for the entire podcasting market. During its last round of funding in 2017, Gimlet was valued at about $70 million.
Oil rises 1 percent on signs of tightening global oil supply
US West Texas Intermediate (WTI) futures were at $55.13 per barrel, down 13 cents, or 0.24 percent, from their last settlement. According to latest OPEC forecasts, global oil demand will grow by 1.29mn bpd in 2019, the lowest rate of growth since 2013.
Man charged with kidnapping Wisconsin teen agrees to trial
She said that since coming home, Jayme has spent time with loved ones, and in therapy. "Were so blessed!" the photo caption reads. Patterson took her to a cabin and said no one could know she was there or "bad things could happen to her", the complaint said.
Fan 'killed by foul ball' at Dodgers baseball game
She was in the stands August 25 when a ball hit by a San Diego Padres player sailed over protected netting and struck Goldbloom. Goldbloom, a mother of three and grandmother of seven, was a "true fan" of the Dodgers , her daughter said.
Bulls Acquire Otto Porter From Wizards
The move cuts short Parker's well-publicized return to his hometown after being drafted second overall by Milwaukee in 2014. This is not the sort of move the Wizards hoped to have to make, but it's a pragmatic one in the wake of Wall's injury.
Rockets acquire Shumpert in 3-team trade
The Cleveland Cavaliers , Houston Rockets and Sacramento Kings have completed a three-team trade, according to multiple reports. Of course, since the deal isn't finalized, the Rockets could change their mind and seek to deal Knight to another team.
Nintendo reportedly working on a more compact Switch
Looking to the quality of Nintendo's past mobile efforts, this will likely be good news for players in the end. The upcoming title will be first time the Mario Kart series has been available on mobile phones.
She Thought a Ghost Was Stealing Her Clothes. Not Quite
Swofford was later booked at Guilford County Jail on 25 charges, including larceny, breaking or entering, and identity theft. Both Maddie and her roommate are terrified, and say that this is not the first time their apartment has been broken into.
Lakers have 'talked' about deal for Jabari Parker
But giving up an asset, especially one that could be used to land Anthony Davis or a strong shooter, doesn't make much sense. Also, Parker is still only 23 and perhaps the Lakers believe LA will be his first true National Basketball Association home.