Thursday, October 14, 2021

A Jovian analogue orbiting a white dwarf star | Nature

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The Keck Observatory data used in this study are freely available in the Keck Observatory Archive ( https://koa.ipac.caltech.edu/cgi-bin/KOA/nph-KOAlogin ).

Publisher: Nature
Date: 2021-10-13
Author: 2021 The Author s under exclusive licence to Springer Nature Limited
Twitter: @nature
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Astronomers may have spotted first planet orbiting three stars - CNET

This composite image of GW Orionis comes from the European Southern Observatory's Very Large Telescope in Chile.

But new analysis of the protoplanetary cloud suggests that process may have already yielded some pretty big cosmic fruit.

Researchers led by Jeremy Smallwood, a recent Ph.D. graduate in astronomy from the University of Nevada, Las Vegas, noticed a significant and befuddling gap in the dusty discs, which are not only broken up but also warped.

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Publisher: CNET
Author: Eric Mack
Twitter: @CNET
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New gas-giant planet found orbiting white dwarf star | Darlington and Stockton Times

Astronomers have discovered evidence of a gas-giant planet orbiting a white dwarf star in the Milky Way.

The new research indicates the gas-giant, Jupiter-mass planet is orbiting a white dwarf star in a wide orbit in the Milky Way.

Publisher: Darlington and Stockton Times
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Bad Astronomy | Planets around red dwarfs might be found by aurorae on the stars

Following up on work presented last year with a single star, a team of astronomers has found evidence for planets orbiting quite a few nearby red dwarf stars , and they've done it in an entirely new way: By looking for aurorae on the stars themselves .

An aurora on Earth is caused when electrically charged subatomic particle (like electrons) in the Sun's solar wind stream past the Earth and are caught by our planet's magnetic field .

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Publisher: SYFY WIRE
Date: 2021-10-12T09:00:00-04:00
Author: https www facebook com Phil Plait 251070648641
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EarthSky | 51 Eridani b: An exoplanet orbits its star

In these five frames, taken by the @GeminiObs and processed by @semaphore_P , the gas giant 51 Eridani b completes part of its 20-AU orbit around its host star.

Planetary geologist Paul Byrne at Washington University in St. Louis ( @ThePlanetaryGuy on Twitter) tweeted this cool animation this week (October 11, 2021). It shows a distant exoplanet called 51 Eridani b – orbiting the star 51 Eridani – located just 96 light-years away.

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Publisher: EarthSky | Updates on your cosmos and world
Date: 2021-10-12T16:15:40 00:00
Twitter: @earthskyscience
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Experts say orbiting farms could solve UK's solar power shortcomings

Experts have said they can provide reliable energy to a quarter of British homes while circumventing some of the biggest drawbacks of solar energy.

Considering that, in winter, the UK is in a darkness for half of the day, huge strides in energy storage would have to be made in order for on-the-ground solar to be effective round the clock.

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Publisher: Digit
Date: 2021-10-11T10:11:18 00:00
Twitter: @digitfyi
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Fact check: Did aliens send radio signals from outside the solar system?

On October 13, several news websites reported that Earth has received its first radio signals from outside our solar system and speculated that it could be 'aliens calling.'

The articles were based on a paper published on October 11 in Nature Astronomy . The researchers said that they had discovered radio signals from 19 distant red dwarf stars or M dwarfs.

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Publisher: The Indian Express
Date: 2021-10-14T15:47:27 05:30
Author: Aswathi Pacha
Twitter: @The Indian Express
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Mysterious radio signals originating from distant stars could hint at possible hidden planets-

In a major discovery, scientists have found radio waves emitting from distant stars, possibly indicating the existence of hidden planets. The discovery was made by the world's most powerful radio telescope, the Low-Frequency Array (LOFAR), which is located in the Netherlands.

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Publisher: Tech2
Date: 2021-10-14 10:26:38 05:30
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