‘Stellar exodus’ caught on camera for 1st time - News - MailTribune.com - Medford, OR

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0 of 3 Premium Clicks used this month SUBSCRIBE Print + Online Subscriber Activation  |  Register x Forgot Password | Need an Account? e-edition | subscribe | newsletter | deals Classifieds Jobs Autos Real Estate FEATURED   » NEWS NOW   UPDATED: Trump, Sanders victorious in New Hampshire primaries       ...       Man jailed after allegedly groping jogger on Bear Creek Greenway       ...       Oregon man who killed officer had long criminal record       ...       UPDATED: Trump, Sanders victorious in New Hampshire primaries       ...       Man jailed after allegedly groping jogger on Bear Creek Greenway       ...       Oregon man who killed officer had long criminal record       ...           ‘Stellar exodus’ caught on camera for 1st time White dwarf stars move away from the center of densely packed globular star clusters as they age and cool down. While astronomers have long known about the process, this is the first time it has been observed in action. Comment By Natalie Crofts, KSL MailTribune.com By Natalie Crofts, KSL Posted May. 23, 2015 at 12:01 AM Updated May 23, 2015 at 3:47 PM By Natalie Crofts, KSL Posted May. 23, 2015 at 12:01 AM Updated May 23, 2015 at 3:47 PM »  Social News BRITISH COLUMBIA, Canada — For the first time, white dwarf stars have been photographed during the beginning stages of their 40-million-year migration, according to astronomers. White dwarfs move away from the center of densely packed globular star clusters as they age and cool down. While astronomers have long known about the process, this is the first time it has been observed in action, according to the Space Telescope Science Institute. "We've seen the final picture before: white dwarfs that have already sorted themselves out and are orbiting in a location outside the core that is appropriate for their mass," study author Jeremy Heyl said in a statement . “But in this study, which comprises about a quarter of all the young white dwarfs in the cluster, we're actually catching the stars in the process of moving outward and segregating themselves according to mass.” Astronomers observed the white dwarfs’ movement within the globular star cluster 47 Tucanae, which contains hundreds of thousands of stars in the Milky Way galaxy, using images captured by the Hubble Telescope. For the study, astronomers tracked about 3,000 white dwarfs using ultraviolet light. They divided the stars into two groups: white dwarfs starting the journey at about 6 million years old and white dwarfs that completed the journey at around 100 million years old. “The entire process doesn't take very long, only a few hundreds of millions of years, out of the 10-billion-year age of the cluster, for the white dwarfs to reach their new home in the outer suburbs,” Heyl said. The study was published in The Astrophysical Journal . By Natalie Crofts, KSL MailTribune.com By Natalie Crofts, KSL Posted May. 23, 2015 at 12:01 AM Updated May 23, 2015 at 3:47 PM » Comment or view comments   Reader Reaction »  STAY INFORMED   Email NewsLetter   Sign Up Today   Sign up for our newsletter and have the top headlines from your community delivered right to your inbox. Southern Oregon Directory Featured Businesses Loading... Business Name address Location, ST | website.com Find Southern Oregon Attractions Bars Restaurants Beauty Salons Entertainment Doctors Medical Specialists Contractors Education Lawn Services Lawyers Shopping Travel Tanning Used Cars Wedding Services ▼ Add your business here + Events Calendar Connect with MailTribune.com Facebook Twitter RSS Back to top Reader Services Reader Services Home Subscriptions Subscriber controls Contact us Submissions Photos Events Letters to the editor Corrections Announcements Obituaries Story ideas Since you asked Alerts Email Alerts RSS Feeds Text Alerts Advertise Media Kit Home Products and services Ad rates Advertising contacts Propel Marketing Mail Tribune Daily Tidings The Nickel Shop Our Valley Blogs Mobile Site Stay Informed   Email newsletter   Sign Up Today   Sign up for our newsletter and have the top headlines from your community delivered right to your inbox. Your privacy is important, read our privacy policy. © Copyright 2016 Local Media Group, Inc. All Rights Reserved.    Privacy Policy  |  Terms of Service  |  Local Media Group Publications Original content available for non-commercial use under a Creative Commons license, except where noted. MailTribune.com | P.O. Box 1108, Medford, OR 97501