Saturday , July 24 2021

The huge planet, 13 times the mass of Jupiter, was in the orbit "exotic" red star / dead star




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Brazilian researchers have discovered strong signs of a huge object in the Cygnus constellation that orbits a living star and white dwarf.

Leandro Almeida

Brazilian astronomers are right published Astronomical magazine evidence of a "giant Jupiter" planet in the distance and"exotic"Star System on the Milky Way. Except for 13 times the mass of Jupiter, the exoplanet is the first to be in orbit in an older or more advanced binary where one of the two stars is dead."

What is a Binary Star?

Think our solar system is "normal?" Think again. The most common star systems in our Milky Way galaxy are multi-star systems in which two or more stars in orbit, or rather in orbit, are located in a common center of mass. Maybe up to 85% of the stars are in binary systemsincluding famous "stars" Sirius, Spica, Rigel and Alpha Centauri. The binary stars are gravitatively linked to each other, so they should not be confused with the "double stars" that usually refer to stars that appear optically very close to each other in the field of vision in a binocular or telescope, but can be entirely in other star systems. There are also many triple and higher star systems. Polaris, North Star, is a three star star while Kepler's data was previously used to find "impossible three star star" system KIC 2856960.

However, & nbsp;The KIC 10544976 star system is also unique. & Nbsp;

Alpha and Beta Centauri from Miramar Beach, Argentina. Alpha is the star closest to our sun. & Nbsp;photo credit: Getty

Getty

What did astronomers discover?

"We managed to get quite convincing evidence of the existence of a huge exoplanet, with a mass almost 13 times the mass of Jupiter in the developed binary system," said lead author Leonardo Andrade de Almeida at the Federal University of Rio Grande do Norte (UFRN). "This is the first exoplanet approval for this type of system." Almeida and co-author Augusto Damineli studied the nearby binary star system KIC 10544976 using data from ground telescopes from 2005 to 2017 and from Kepler's space telescope from 2009 to 2013. Kepler Space Telescope, which mission completed in 2018has been responsible for most of the 4000+ exoplanet discoveries so far.

The artist's concept of Kepler's space telescope.

NASA

What is KIC 10544976?

KIC 10544976 contains a white dwarf star (a dead low star with a high surface temperature) and a red dwarf star (a live magnetically active star with a small mass compared to our sun), every second in orbit every 0.35 days. "The system is unique," said Almeida. "No similar system has enough data to allow us to calculate the orbital period variations and magnetic cycle activity of the living star."

KIC 10544976 is located in the Cygnus constellation "swan" in the northern sky hemisphere, a region that Kepler's space telescope carefully studied.

This illustration depicts NASA's exponential hunter, Kepler's space telescope. On October 30, 2018, the agency announced that Kepler's fuel was over and was being removed from the current and safe orbit away from Earth.

NASA / Wendy Stenzel

How was the giant Jupiter discovered?

The orbits of the stars are slightly different, and the astronomers noticed the differences between the time each of the two stars. "The binary orbital period variations are related to the gravitational attraction of the three objects around the orbit around the common center of mass," said Almeida. The main goal of the study was to study the "live" cycle of the magnetic activity of the binary activity by watching the red dwarf star, monitoring the speed and energy of the solar flares and the variability of its brightness caused by the sun spots. "The changes in our Sun's magnetic activity can cause a change in its magnetic field," said Almeida. "The same applies to all isolated stars. In binaries, these variants also cause changes in the orbital period called Applegate mechanism.

The researchers measured the magnetic cycles and found that the results were as expected for some low-mass stars, and found only one long-term variation. "This completely disproves the hypothesis that the orbital period changes are related to magnetic activity," said Almeida. "The most probable explanation is the presence of a giant planet in orbit binary, about 13 times the mass of Jupiter."

The Giant Magellan Telescope (GMT) in the Atacama Desert of Chile will help you get answers to this exotic environment as well as the chance to live there.

2019 GMTO Corporation / Mason Media Inc.

Why do we need to take a closer look at the giant Jupiter

How does "giant Jupiter" develop and develop? Is it a "first generation" planet that developed at the same time as the two stars were billions of years ago? Or did it come from the gas that was discharged during the death of a white dwarf, making it a second-generation planet? Is There Life For The Giant Jupiter? These are questions that can only be answered by ground-based telescopes with primary mirrors longer than 20 meters, so S & A, and Paulo Research Foundation (FAPESP) invests $ 40 million Giant Magellan Telescope (GMT)that is currently under construction in the Atacama desert of Chile and is expected to be the first light in 2024.

"We are testing 20 systems in which external structures may have a gravitational effect, such as KIC 10544976, and most of them are only seen in the southern hemisphere," said Almeida. "GMT will allow us to directly discover these objects and get important answers about this exotic environment as well as the opportunity to live there."

The Future of Exoplanet Hunting

With the Kepler Space Telescope in 2011, the exoplanet hunt undoubtedly became the hottest genre of astronomy and planet science. This mission ended in October 2018, but it is expected that in April 2018 the launch of the TESS (Transit Exoplan Polling Satellite) will lead to much more exponential discoveries that can be confirmed new generation giant earth telescopes.

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Brazilian researchers have discovered strong signs of a huge object in the Cygnus constellation that orbits a living star and white dwarf.

Leandro Almeida

Brazilian astronomers have just published proof of the "giant Jupiter" planet far away in the Astronomical Journal"exotic"The star system on the Milky Way. With the exception of 13 times the mass of Jupiter, the exoplanet is the first in orbit of the oldest or most advanced binary, where one of the two stars is dead.

What is a Binary Star?

I think our solar system is "normal?" Think again. The most common star systems in our Milky Way galaxy are multi-star systems in which two or more stars in orbit, or rather in orbit, are located in a common center of mass. It is possible that up to 85% of the stars are in binary systems, including the famous "stars" Sirius, Spica, Rigel and Alpha Centauri. The binary stars are gravitatively linked to each other, so they should not be confused with "double stars", which usually refer to stars that appear optically very close to each other in the field of vision in a binocular or telescope, but may have completely different star systems. There are also many triple and higher star systems. Polaris, North Star, is a three star star, while Kepler's data is used to find the "impossible three-star" system KIC 2856960.

However The KIC 10544976 star system is also unique.

Alpha and Beta Centauri from the beach in Miramar, Argentina. Alpha is the star closest to our sun. photo credit: Getty

Getty

What did astronomers discover?

"We managed to get quite convincing evidence of a huge exoplanet, which weighs nearly 13 times the mass of Jupiter in the developed binary system," said lead author Leonardo Andrade de Almeida at the Grand University of Rio Grande do Norte (UFRN). . "This is the first exoplanet approval for this type of system." Almeida and co-author Augusto Damineli studied the nearby binary star system KIC 10544976 using data from ground telescopes from 2005 to 2017 and from Kepler's space telescope for the period 2009-2013. Kepler's Space Telescope, which completed its mission in 2018, has been responsible for most of the 4,000+ exoplanet discoveries so far.

The artist's concept of Kepler's space telescope.

NASA

What is KIC 10544976?

KIC 10544976 contains a white dwarf star (a dead low star with a high surface temperature) and a red dwarf star (a live magnetically active star with a small mass compared to our sun), every second in orbit every 0.35 days. "The system is unique," said Almeida. "No similar system has enough data to allow us to calculate the variation of the orbital period and the magnetic cycle activity for the living star."

ZIK 10544976 is located in the Cygnus "Swan" constellation in the northern part of the hemisphere, closely explored by Kepler's space telescope.

This illustration depicts NASA's exponential hunter, Kepler's space telescope. On October 30, 2018, the agency announced that Kepler's fuel was over and was being removed from the current and safe orbit away from Earth.

NASA / Wendy Stenzel

How was the giant Jupiter discovered?

The orbits of the stars are slightly different, and astronomers noticed the differences in the time required for each of the two stars to stop each other. "The binary orbital period variations are linked to the gravitational attraction of the three objects around the orbit around the common center of mass," said Almeida. The main task of the study was to study the binary "life" red dwarf star magnetic activity cycle, controlling the speed and energy of the sun rays, as well as the changes in the brightness of the sun spots. "Our solar magnetic variation ultimately leads to a change in its magnetic field," said Almeida. "The same applies to all isolated stars. In binaries, these variants cause changes in the orbital period, which we call the Applegate mechanism."

The researchers measured the magnetic cycles and found that the results were as expected for certain low mass stars and found only one long-term variation. "This completely disproves the hypothesis that the orbital period variation is associated with magnetic activity," said Almeida. "The most probable explanation is the presence of a giant planet, orbiting the binary, with a mass of about 13 times that of Jupiter."

The Giant Magellan Telescope (GMT) in the Atacama Desert of Chile will help you get answers to this exotic environment as well as the chance to live there.

2019 GMTO Corporation / Mason Media Inc.

Why we need to take a closer look at the giant Jupiter

How did the giant Jupiter develop and develop? Is it a "first generation" planet that developed simultaneously with both stars several years ago? Or did it come from the gas that was discharged during the death of a white dwarf, making it a second-generation planet? Is There Life For "The Giant Jupiter?" These are questions that can only be answered by ground-based telescopes with primary mirrors longer than 20 meters, so the São Paulo Research Foundation (FAPESP) invests $ 40 million in the Giant Magellan Telescope (GMT), currently being built in the Atacama desert of Chile and waited for the first light in 2024.

"We are testing 20 systems in which external structures can have a gravitational effect, such as KIC 10544976, and most of them are only visible from the southern hemisphere," said Almeida. "GMT will allow us to directly discover these objects and get important answers about this exotic environment as well as the possibility of life."

The Future of Exoplanet Hunting

With the Kepler Space Telescope in 2011, the exoplanet hunt undoubtedly became the hottest genre of astronomy and planet science. This mission ended in October 2018, but the launch of the TESS (Transiting Exoplanet Survey Satellite) in April 2018 will await much more exponential discoveries that can be confirmed by the new generation of giant telescopes.


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