Astronomers find giant planet around very young star


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“For decades, conventional wisdom held that large Jupiter-mass take a minimum of 10 million years to form,” said Christopher Johns-Krull, the lead author of a new study about the planet, CI Tau b, that will be published in the Astrophysical Journal. “That’s been called into question over the past decade, and many new ideas have been offered, but the bottom line is that we need to identify a number of newly formed planets around young stars if we hope to fully understand planet formation.”

CI Tau b is at least eight times larger than Jupiter and orbits a 2 million-year-old star about 450 light years from Earth in the constellation Taurus. Johns-Krull and a dozen co-authors from Rice, Lowell Observatory, the University of Texas at Austin, NASA and Northern Arizona University made the peer-reviewed study available online this week.

Earth and the sun are more than 4 billion years old, and while the 3,300-plus catalog of exoplanets includes some older and some younger than Earth, the obstacles to finding planets around newly formed stars are varied and daunting, Johns-Krull said. There are relatively few candidate stars that are young enough, bright enough to view in sufficient detail with existing telescopes and still retain circumstellar disks of gas and dust from which planets form. Stars so young also are often active, with visual outbursts and dimmings, strong magnetic fields and enormous starspots that can make it appear that planets exist where they do not.

http://phys.org/news/2016-05-astronomers-giant-planet-young-star.html

ASTRONOMERS FIND GIANT PLANET AROUND VERY YOUNG STAR


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For decades, conventional wisdom held that large Jupiter-mass planets take a minimum of 10 million years to form,” said Christopher Johns-Krull, the lead author of a new study about the planet, CI Tau b, that will be published in the Astrophysical Journal. “That’s been called into question over the past decade, and many new ideas have been offered, but the bottom line is that we need to identify a number of newly formed planets around young stars if we hope to fully understand planet formation.”

CI Tau b is at least eight times larger than Jupiter and orbits a 2 million-year-old star about 450 light years from Earth in the constellation Taurus. Johns-Krull and a dozen co-authors from Rice, Lowell Observatory, the University of Texas at Austin, NASA and Northern Arizona University made the peer-reviewed study available online this week.

http://www.infowars.com/astronomers-find-giant-planet-around-very-young-star/

 

A NEW TYPE OF GALAXY IS SO BIG IT BAFFLES ASTRONOMERS


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Astronomers have discovered enormous, new galaxies they call “Super Spirals.” These galaxies are so enormous, they are beyond our understanding.

http://www.infowars.com/a-new-type-of-galaxy-is-so-big-it-baffles-astronomers/

Astronomers Predict a Supernova


Supernova Refsdal

Several months ago, we wrote about the discovery of Supernova Refsdal, an exploding star in a faraway galaxy, whose light had split into four images on its way to Earth.

Now astronomers have used the Hubble Space Telescope to spot the supernova — again! On December 11th, Patrick Kelly (University of California, Berkeley) and colleagues spotted a fifth image of the exact same explosion, more than a year after Hubble caught the previous four images.

The time travel trick occurs by way of gravitational lensing. The gravity of a massive object magnifies light sources in just the right place behind it and may distort or split their images.

In the case of Supernova Refsdal, the light traveled toward Earth for more than 9 billion years. On its way here, it passed near a massive elliptical galaxy. Though a perfectly spherical galaxy would have created a ring, the oval-shaped galaxy instead created an Einstein’s Cross, splitting the supernova’s light into four images around the lensing galaxy.

Astronomers Predict a Supernova

 

ASTRONOMERS PREDICT A SUPERNOVA


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Now astronomers have used the Hubble Space Telescope to spot the supernova — again! On December 11th, Patrick Kelly (University of California, Berkeley) and colleagues spotted a fifth image of the exact same explosion, more than a year after Hubble caught the previous four images.

The time travel trick occurs by way of gravitational lensing. The gravity of a massive object magnifies light sources in just the right place behind it and may distort or split their images.

Astronomers Predict a Supernova

Astronomers spot young, ‘Jupiter-like’ planet


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The planet’s methane-rich atmosphere makes 51 Eridani b more “Jupiter-like” than any other exoplanet scientists have discovered, co-author Travis Barman, a researcher at University of Arizona, said in a statement.

He said the new instrument could play a vital role in identifying and understanding how solar systems similar to ours form.

http://www.usatoday.com/story/news/nation-now/2015/08/14/astronomers-discover-jupiter-like-planet-solar-system/31712325/

ASTRONOMERS SPOT YOUNG, ‘JUPITER-LIKE’ PLANET


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The planet 51 Eridani b is roughly twice the size of Jupiter and young by planetary standards, at 20 million years old. At 800 degrees Fahrenheit, the planet’s surface is still glowing with heat from its creation and offers clues about how it was formed, according to a study published in the journal Science on Thursday.

http://www.infowars.com/astronomers-spot-young-jupiter-like-planet/