العلوم والبيئة
ALMA catches a dying star mid-transformation, with a ring from its last outburst
المصدر: Phys.org - latest science and technology news stories · نُشر
Astronomers have used radio observations from the Atacama Large Millimeter/submillimeter Array (ALMA) to catch a dying star in the middle of a dramatic transformation, and the data show a ring that records its final outburst. The new research was posted to the arXiv preprint serv
Astronomers have used radio observations from the Atacama Large Millimeter/submillimeter Array (ALMA) to catch a dying star in the middle of a dramatic transformation, and the data show a ring that records its final outburst. The new research was posted to the arXiv preprint server on Sept. 18.
The paper has been accepted for publication in The Astrophysical Journal.
أخبار ذات صلة
MIT astronomers catch a star in a feast that could last billions of years
Astronomers have discovered a bizarre star system about 300 light-years from Earth where a small star is slowly devouring a nearby brown dwarf, an object too massive to be a planet but too small to be a true star. Unlike stars that rapidly swallow their companions, this one is gr
All Top News -- ScienceDaily ·
Hubble Space Telescope may have found a planet born after its star died
A strange chemical signature in old Hubble observations may point to a planet that formed after its star had already died. Astronomers found unusually high levels of niobium around the white dwarf HS 0209+0832, suggesting some of the star’s expelled material may have assembled in
All Top News -- ScienceDaily ·
Ancient people relied on genetic variation already present in wild plants to domesticate crops like rice and corn
Oryza rufipogon is an ordinary-looking wild grass found today in parts of China, India and Southeast Asia. More than 8,000 years ago, people living in the Lower Yangtze Valley began cultivating it.
Phys.org - latest science and technology news stories ·
A migration running out of time? New Zealand banded dotterels reach Australia later each year
On open beaches, gravel riverbeds and bare volcanic plateaus, banded dotterels—or double-banded plovers, as they are called in Australia—are a familiar and much-loved sight across New Zealand, the only country where these charismatic plovers breed.
Phys.org - latest science and technology news stories ·
This economist believes the system is broken. Maybe she has a point
Governments need to work hand in hand with the private sector, rather than leaving business to its own devices. They should be "moving away from fixing market failures and government failures toward actively shaping how markets are governed." International economist and governmen
Phys.org - latest science and technology news stories ·