UA-113443594-1

Tel Aviv University-led team discovers new way supermassive black holes are...

IMAGE: This is an artistic impression of a gas disk feeding a massive black hole while emitting radiation. view more  Credit: NASA Supermassive black holes weigh millions to billions times more than our sun and lie at the center of most galaxies. A supermassive black hole several million times the mass of the sun is situated in the heart of our very own Milky Way. Despite…

Antarctic ice sheet could suffer a one-two climate punch

MADISON, Wis. -- Scientists have long speculated that our planet's climate system is intimately linked to the Earth's celestial motions. The pacing of the most recent ice ages, for example, is attributable to changes in the shape of our planet's orbit around the sun as well as to cyclic changes in the tilt of the Earth on its axis and its "top-like" wobble on that…

Double star system flips planet-forming disk into pole position

IMAGE: Artist's impression of a view of the double star system and surrounding disc. view more  Credit: University of Warwick/Mark Garlick New research led by an astronomer at the University of Warwick has found the first confirmed example of a double star system that has flipped its surrounding disc to a position that leaps over the orbital plane of those stars. The international team of astronomers…

Astronomers develop world’s largest, most inclusive ‘stellar library’

SEATTLE, Wash. (Jan. 8, 2019) -- Want to learn everything there is to know about a subject? Go to the library. Want to learn everything there is to know about stars? Go to the stellar library. Renbin Yan, an associate professor of physics and astronomy in the UK College of Arts and Sciences, along with a team of astronomers from the Sloan Digital Sky Survey…

Birth of a black hole or neutron star captured for the...

IMAGE: An image of AT2018cow and its host galaxy obtained on August 17, 2018 using W. M. Keck Observatory's instrument, the DEep Imaging and Multi-Object Spectrograph (DEIMOS). view more  Credit: R. MARGUTTI/W. M. KECK OBSERVATORY Maunakea, Hawaii - A Northwestern University-led international team of astronomers is getting closer to understanding the mysterious bright object that burst in the northern sky this summer, dubbed AT2018cow or 'The…

Unusual supernova opens a rare window on the collapse of a...

An unusual supernova studied by multiple telescopes, including the SOAR telescope and other telescopes at the National Science Foundation's (NSF) Cerro Tololo Inter-American Observatory (CTIO) and NSF's Kitt Peak National Observatory (KPNO), is thought to herald the birth of a new black hole or neutron star, caught at the exact moment of its creation. Observations made with facilities ranging from X-rays to optical and radio…

Hubble sees the brightest quasar in the early universe

The NASA/ESA Hubble Space Telescope has discovered the brightest quasar ever seen in the early Universe. After 20 years of searching, astronomers have identified the ancient quasar with the help of strong gravitational lensing. This unique object provides an insight into the birth of galaxies when the Universe was less than a billion years old. Astronomers using data from the NASA/ESA Hubble Space Telescope have…

New technique more precisely determines the ages of stars, Embry-Riddle researchers...

IMAGE: Embry-Riddle researchers used data captured by the Gaia satellite (shown here in an artist's impression) to determine the ages of stars. view more  Credit: European Space Agency - D. Ducros, 2013 How old are each of the stars in our roughly 13-billion-year-old galaxy? A new technique for understanding the star-forming history of the Milky Way in unprecedented detail makes it possible to determine the ages…

Oscillating X-rays from consumed stars offer new insights into the nature...

The streams of electromagnetic energy released from a star destroyed by the tidal forces of a supermassive black hole nearly 290 million light years away encode valuable information about the physical properties of black holes, a new study finds. The results provide a new way to identify types of black holes that have been challenging to observe using other means. It's thought that a black…

Astronomers map ‘light echoes’ of newly discovered black hole

IMAGE: Recent research has revealed new insights about the environment near a relatively small, 'stellar mass' black hole named MAXI J1820+070, which is about 10 times the mass of the sun.... view more  Credit: Nature Publishing Group A team of astronomers led by Erin Kara, the Neil Gehrels Prize Postdoctoral Fellow in the University of Maryland's Department of Astronomy, has charted the environment surrounding a relatively…
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