Friday , May 7 2021

Discovery exoplanet super-ground & # 39; ancient orbiting adjoining star



The nearest single star star looks like a large, frozen planet.

Serpenters have found strong evidence of a strange world of around 3.2 times more massive than Earth that rotates the Barnard Star, a red nozzle that only sleeps 6 light years of & The sun. Barnard's Star is the nearest neighbor of our sun, other than the three-star Alpha Centauri system, which is approximately 4.3 light years away.

The new world found, known as Starard Barnard & b, is currently a candidate of a planet. But the researchers who have seen are confident that the alien planet will eventually be confirmed. [Barnard’s Star b: What We Know About the “Super-Earth’ Candidate]

"After a very careful analysis, we are 99 percent confident that the planet is there," said Ignasi Ribas, from the Institute of Studies in Catalonia Places and the Institute of Space Sciences in Spain, in a statement.

"However, we will continue to observe the star that moves rapidly to exclude possible but unlikely natural variations of brightness that could grow like a planet," added Ribas, lead author of a new study announcing find Barnard's Seren b. That study was published online today (November 14) in the Nature magazine.

Impressing a new artist away

Seren Barnard, b if confirmed, will not be in the nearest exoplanet to Earth. That designation is captured by Proxima world-wide world of the world, which is set by Proxima Centauri, one of the Alpha Centauri drives.

NASA's Kepler space telescope showed that small planets were commonplace in galaxy Ffordd Llaethog in general. Together, Proxima ba Starard Barnard strongly suggests that these worlds are "common in our neighborhood too," said co-author of study Johanna Teske, Department of Earth Magnetism at the Carnegie Science Institute in Washington, DC, at Space.com. "And that's super-exciting."

Close-up solar neighbor

Seren Barnard is named after the American E.E. astronomer. Barnard, who discovered in 1916 how quickly Ribas was mentioned. No other star moves faster across the Earth or Star Barnard, which travels around the full moon width every 180 years. [Gallery: The Strangest Alien Planets]

This obviously unlicensed proposal is due to the proximity of the Barnard Star and its high speed (but not recording) of 310,000 mph (500,000 km / h) compared to the sun .

RELATED: 2018 Space Calendar:

33 Photographs

2018 Space Calendar

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January 1, 2: Supermoon / Full Moon Wolf

The moon will make its approach closer to Earth on New Year's Day and it will appear more and more brilliant than custom, gaining the difference of Supermoon & # 39;

In addition, the first full moon of any year gains the full Moon Moon difference. The term was created by American Native Americans as a goal to the sweetheart wolves that they would often hear outside their villages in January.

Picture: Matt Cardy / Getty Images

January 3, 4: Quadrantids Meteor showers

The Quadrantid meteoric shower, known to be producing 50-100 meters during its peak, is the first major meteoric shower 2018.

Unfortunately, the full full moon light will obstruct most of the show.

Photo: NurPhoto / NurPhoto through Getty Images

January 31: Lunar Eclipse / Blue Moon Total

Moon Moon is the term for the second full moon in a month with more than one full moon.

Moon Moon in January also happens to accompany a full mold eclipse.

Photo: REUTERS / Mike Hutchings

February 15: Regional Solar Eclipse

This type of solar eclipse occurs when the moon breaks a shadow that only includes part of the Sun.

Only part of South America and Antarctica will be the partial solar eclipse on February 15 only. Those who want to take it will need to wear special protective glasses.

Photo: REUTERS / Tatyana Makeyeva TPX IMAGES DAY

March 2: Full Worm Moon

Another season produced by American Native, namely the Full Worm Moon & # 39; is the difference given to the first full moon in March.

As the temperature warms, the ground begins to soften and the seagulls begin to bend their heads through the soil again.

Photo: NICHOLAS KAMM / AFP / Getty Images

March 15: Mercury Reaches the Greater Combination

Mercury will reach its largest eastern stretch of the sun (that is its highest point above the horizon) on March 15.

This will make the planet more visible than usual.

Photo: The Royal Observatory of Greenwich, London

April 22, 23: Lyrid Meteor shower

The Lyrid meteorological shower, which usually produces about 20 meters per hour, will reach its peak between the 22nd and 23st of the morning.

Photo: Ye Aung Thu / AFP / Getty Images

April 30: Full Pink Moon

Another season is Full Pink Color & # 39; and is believed to have been compiled by Native American tribes.

In April, the weather finally begins to warm up and flowers begin to appear, earning their nutrition name in full moon every month.

Photo: Ben Birchall / PA Images through Getty Images

May 6, 7: Eta Aquarid Meteor shower

The Eta Aquarids meteorological shower, which comprises Halley's Comet abandoned particles, can produce up to 60 meter per hour at its highest.

Although most of the activity is observed in the South Hemisphere, northern people can continue to take the show if the weather permits.

Photo: NASA

May 9: Thursday reaches the Opposition

The gas giant will make its approach closest to Earth on May 9, making it appear brighter than any other time of year.

Image: Archive of General History through Getty Images

May 29: Full Moon Moon

This name was usually given by the Native American tribes in May as a normal moon when the flowers are usually bloomed.

Photo: REUTERS / Navesh Chitrakar TPX ARRANGEMENTS AND DAYS

June 27: Saturn reaches the Opposition

Saturn will make its closest approach to Earth on June 27, making it appear brighter than any other time of year.

Photo: NASA / JPL-Caltech / Space Science Institute / Leaflet through REUTERS

June 28: Full Strawberry Lion

As the full full moon of spring, stalliners can expect that this is big and bright – but contrary to its name, it is not bright.

A strawberries season is reaching its top in June, winning the first full moon name of the month.

Picture: Matt Cardy / Getty Images

July 13: Regional Solar Eclipse

This type of solar eclipse occurs when the Moon breaks a shadow that only includes a part of the Sun.

The partial solar eclipse on July 13 will be visible only in parts of southern Australia and Antarctica. Those who want to take it will need to wear special protective glasses.

Photo: REUTERS / Mal Langsdon TPX ARRANGEMENTS AND DAY

July 27: Mars reaches the Opposition

You guess – Mars will make its closest approach to Earth on July 27, making it seem brighter, and so more visible, than at any other time of year.

Photo: NASA / Leaflet through Reuters

July 27: Full Buck Moon

The full moon in July was called Full Full Lake & # 39; by American Native loads, as it appears during this time of year when male deer begins to grow their new willowrs.

Photo: REUTERS / Carlo Allegri

July 28, 29: Total Lunar Eclipse

A gray eclipse occurs when the moon passes completely through the shadow of the Earth, lending the moon into a dark-red look.

July lunch eclipse will be visible in North America, east Asia and Australia.

Photo: REUTERS / Kacper Pempel

August 11: Regional Solar Eclipse

This type of solar eclipse occurs when the moon breaks a shadow that only includes part of the Sun.

The partial solar eclipse on August 11 will be visible only in parts of Canada, the Groenland, northern Europe, and the north and east of Asia. Those who want to take it will need to wear special protective glasses.

Photo: REUTERS / Samrang Pring TPX ARRANGEMENTS AND DAYS

August 12, 13: Perseid Meteor shower

The Perseids meteor shower, which contains dust particles left by the Swift-Tuttle Comet, can produce up to 60 meter per hour at its highest.

The thin crescent moon on the 12th of August will create favorable viewing conditions for the celestial scene, which should be visible throughout the world.

Photo: REUTERS / Paul Hanna

August 17: Venus Reaches the Greater Combination

Venus will make its approach closest to Earth on August 17, making it appear brighter, and so more visible, than at any other time of year.

Photo: Photo12 / UIG through Getty Images

August 26: Full Moon Sturmon

He won this August's full moon from Native American tribes, as the assault was caught easily during this month.

Photo: Pradita Utana / NurPhoto through Getty Images

September 7: Neptune reaches the Opposition

Neptune will make its nearest aspect to Earth on 7 September, making it appear brighter, and so more visible, than at any other time of year.

However, due to its distance from Earth, the blue planet will only appear to be even those who use telescopes.

Photo: Time Life / NASA Pictures / LIFE / Getty Images Photo Collection)

September 24, 25: Full Harvest

The name & Harvest Moon & # 39; goes to the full moon that's closest to the autumn equinox every year.

Photo: Santiago Vidal / LatinContent / Getty Images

October 8: Magic Meteor shower

It's only about 10 meter per hour, the Dracon meteoric shower, which contains dust particles left behind by Comet 21P Giacobini-Zinner.

However, the new moon on October 9th will create highly favorable viewing conditions for the shower, which should be visible all over the world.

Photo: NASA

October 21, 22: Orionid Meteor shower

Another shower produced by the Halley comet, the Orionids, is likely to be at least partially blocked due to the slightest light on October 21.

Photo: Yuri Smityuk TASS through Getty Images

October 23: Uranus reaches the Opposition

Uranus will make its approach closest to Earth on October 23, making it appear brighter, and therefore more visible, than at any other time of year.

Unfortunately, it is so far from the Earth that it will not be visible without a powerful telescope.

Picture: Life Time Pictures / Jet Propulsion Lab / NASA / LIFE / Getty Images Images Collection

October 24: Full Hunter Lounge

A full satellite of October was called Full & Full Hunter Lounge & # 39; by the tribes of Naive America since animals were seen more easily during this time of year after the leaves were lost leaves /

Photo: PA Wire / PA Images

November 5, 6: Shower Meteor Showers

Taurids is a small meteoric shower that only produces at least 5-10 meter per hour.

Photo: NASA

November 17, 18: Leonid Meteor Shower

Leonid's meteor shower, which is turned from Leo's composition, is producing at least 15 meter per hour.

Photo: Ali Jarekji / Reuters

November 23: Full Beaver Moon

Native American tribes were given November full moon, which would establish river traps during the month in the hope of catching the creatures for their warm fur.

Picture: Matt Cardy / Getty Images

December 13, 14: Geminids Meteor Shower

Geminids meteoric shower, produced by asteroids left behind by the asthmaid of the 3200 Phaethon, is famously known as one of the most spectacular of its kind.

The show can produce up to 120 meter per hour at its peak and will be visible across the planet on Tuesday 13 March.

Photo: REUTERS / Navesh Chitrakar

December 21, 22: Ursids Meteor shower

It is only about 10 meter per hour that the Dracon meteoric shower, which contains the dust particles that the Tuttle Comet has behind, generates about 10 meter per hour.

Unfortunately, the full moon on December 22 is likely to create adverse viewing conditions for the smaller show.

Photo: REUTERS / Daniel Aguilar DA / LA

December 22: Full Cold Moon

Amazingly, December's full satellite was named by the Native American tribes after the cold weather, the winter.

Picture: Matt Cardy / Getty Images




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ESTABLISHMENT

And Seren Barnard is getting closer to us every day: In about 10,000 years, the red dwarf will take over the nearest star mantle of the Alpha Centauri system. At that time, Seren Barnard will separate only the light of 3.8 years.

The Barnard Star is twice as old as the Earth's sun, sixth six as huge and only 3 percent are luminous. Due to Star Barnard's no matter what its "lively zone" – the range of distances where fluid water is possible on the surface of the world – lies very close. Indeed, researchers estimate that the zone is a slip that lies 0.06 UA to 0.10 UA of the star. (The sunscreen distance is an AU, or an astronomical unit – about 93 million miles, or 150 million kilometers).

The habitable zone concept is, of course, difficult. Ensuring that people living in the world really require strong active knowledge of composition and atmospheric thickness, among other features. And it's hard to find such information for exoplanets.

Long search

Seren Barnard has been a target of exoplanet hunters for a long time, but their searches have always become empty – so far.

And the new discovery was not easy: Ribas and a team analyzed a large number of data, archival and newly collected, before drawing up Starard Barnard & b.

They use the "radial velocity" method, which looks for changes in starlight caused by removing the gravity of the rolling planet. Such dolls cause a star to slightly bubble, moving its light towards red wavelengths at times and towards the end of the spectrum blue in others, as seen from the Earth. [7 Ways to Discovery Alien Planets]

"We used observations from seven different instruments, which contain 20 years of measurements, making it one of the largest and most extensive data sets ever used for precise speed speeds," he said. Ribas in the same statement. "The combination of all data led to a total of 771 measurements – a great deal of information!"

He never stopped using the radial speed method to find such a small planet in orbit so far, the members of the study team said. (Large, large planets carry their support stars more powerful and thus cause more dramatic, easy-to-find light shifts).

The seven instruments were the High Resolution Radial Planed Excellence (HARPS) Search, at La Silla Observatory of the Southern European Observatory (ESO) in Chile; Spectragraph Ultraviolet and Visual Echelle on the Very Large Telescope, at the ESO Paranal Observatory in Chile; HARPS-North, at the Galileo National Telescope in the Canary Islands; the Echelle Spectrometer High Resolution, in the 10 meter Keck telescope in Hawaii; Spectrograph Finder Planet Institute of Carnegie, in the 6.5-m Magellan telescope at Las Campanas Observatory in Chile; the Automatic Planet Finder in the 2.4-m telescope at the Lick Observatory of the University of California; a & CARMENES, at the Alto Calar Observatory in Spain.

The researchers also found suggestions of another possible planet in the system, orbiting further than Star Barnard and b – a further way, with an orbital period of 6,600 Earth days. But this second sign is too weak to be considered a candidate in the planet, Teske said.

"There's not enough data," he told Space.com.

Super-frigid

Barn Barnard is a minimum of 3.2 times more massive than our own plan, making it "super-ground" – the class of meals that are really larger than the Earth but less than "frozen horses" such as Neptune and Wranws.

The new planet candidate lies 0.4 UA of a host star and completes one orbit every 233 Earth days, according to the new study.

This orbital distance is similar to what Mercury has injected into radiation in our own solar system. However, because Seren Barnard is so proud, the potential planet lies just around the "snowline" of the system – the region where volatile materials such as water can reconcile into solid solids.

"So far, only large planets had been found at a distance of their stars," said Rodrigo Diaz, Institute of Astronomy and Space Physics at the National Council of Scientific and Technical Research and the University of Buenos Aires in Argentina . namely the "News and Views" article that was published today in Nature.

"The discovery of the authors of a low mass planet near the snowline imposes strong restrictions on forming models for this type of planet," added Diaz, who was not part of the new study.

The Barnard Star b, if it really exists, is very promising places of life as we know, at least not on the surface. The potential planet is very similar, with a superficial temperature estimated at around 275 degrees Fahrenheit (less than 170 degrees Fahrenheit), members of the study team said.

Barnard's Star b confirmation is unlikely to come from additional radial speed measures, Diaz wrote. But super-detailed measurements of star positions, such as those made by the Gaia space agency of the European Space Agency, can do the work in the next few years, he added.

"Even more exciting, the next generation of earthly instrumentation, which comes into force in the 2020s, should have a direct image of the planet reported, and measure its light spectrum," said Diaz.

"Using this spectrum, the features of the planet's atmosphere – such as its wind rate and rotation, could be included," he added. "This awesome planet therefore gives us a key piece in planetary form and evolution, and it could be among the first low mass exoplanets whose environment is tested in detail."

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