Observations of the [1] system made a few years ago with the ALMA provided the first hints of ongoing planet formation. In the ALMA images, astronomers spotted two spiral arms of dust and gas within in the inner region of the [1] disk. Then, in 2019 and early 2020, Dr. Boccaletti and his colleagues from France, Taiwan, the United States, and Belgium used the [2] instrument to perform imaging of [1] in polarized and unpolarized near-infrared light to study the morphology of its disk and search for signs of planet formation.
The astronomers confirmed the presence of the spiral arms first detected by ALMA. “Spirals of this type signal the presence of baby planets, which ‘kick’ the gas, creating disturbances in the disk in the form of a wave, somewhat like the wake of a boat on a lake,” said co-author Dr. Emmanuel Di Folco, an astronomer in the Astrophysics Laboratory of Bordeaux.“As the planet rotates around the central star, this wave gets shaped into a spiral arm.”
Which of the following systems has been redacted by [1]?

Observations of the [1] system made a few years ago with the ALMA provided the first hints of ongoing planet formation. In the ALMA images, astronomers spotted two spiral arms of dust and gas within in the inner region of the [1] disk. Then, in 2019 and early 2020, Dr. Boccaletti and his colleagues from France, Taiwan, the United States, and Belgium used the [2] instrument to perform imaging of [1] in polarized and unpolarized near-infrared light to study the morphology of its disk and search for signs of planet formation.
The astronomers confirmed the presence of the spiral arms first detected by ALMA. “Spirals of this type signal the presence of baby planets, which ‘kick’ the gas, creating disturbances in the disk in the form of a wave, somewhat like the wake of a boat on a lake,” said co-author Dr. Emmanuel Di Folco, an astronomer in the Astrophysics Laboratory of Bordeaux.“As the planet rotates around the central star, this wave gets shaped into a spiral arm.”
Which of the following instruments has been redacted by [2]?

Observations of the [1] system made a few years ago with the ALMA provided the first hints of ongoing planet formation. In the ALMA images, astronomers spotted two spiral arms of dust and gas within in the inner region of the [1] disk. Then, in 2019 and early 2020, Dr. Boccaletti and his colleagues from France, Taiwan, the United States, and Belgium used the [2] instrument to perform imaging of [1] in polarized and unpolarized near-infrared light to study the morphology of its disk and search for signs of planet formation.
The astronomers confirmed the presence of the spiral arms first detected by ALMA. “Spirals of this type signal the presence of baby planets, which ‘kick’ the gas, creating disturbances in the disk in the form of a wave, somewhat like the wake of a boat on a lake,” said co-author Dr. Emmanuel Di Folco, an astronomer in the Astrophysics Laboratory of Bordeaux.“As the planet rotates around the central star, this wave gets shaped into a spiral arm.”

What does the ALMA stand for?

Observations of the [1] system made a few years ago with the ALMA provided the first hints of ongoing planet formation. In the ALMA images, astronomers spotted two spiral arms of dust and gas within in the inner region of the [1] disk. Then, in 2019 and early 2020, Dr. Boccaletti and his colleagues from France, Taiwan, the United States, and Belgium used the [2] instrument to perform imaging of [1] in polarized and unpolarized near-infrared light to study the morphology of its disk and search for signs of planet formation.
The astronomers confirmed the presence of the spiral arms first detected by ALMA. “Spirals of this type signal the presence of baby planets, which ‘kick’ the gas, creating disturbances in the disk in the form of a wave, somewhat like the wake of a boat on a lake,” said co-author Dr. Emmanuel Di Folco, an astronomer in the Astrophysics Laboratory of Bordeaux.“As the planet rotates around the central star, this wave gets shaped into a spiral arm.”
Recently, Wasp-76b was in the news. Which of the following reasons brought it in the news?

Observations of the [1] system made a few years ago with the ALMA provided the first hints of ongoing planet formation. In the ALMA images, astronomers spotted two spiral arms of dust and gas within in the inner region of the [1] disk. Then, in 2019 and early 2020, Dr. Boccaletti and his colleagues from France, Taiwan, the United States, and Belgium used the [2] instrument to perform imaging of [1] in polarized and unpolarized near-infrared light to study the morphology of its disk and search for signs of planet formation.
The astronomers confirmed the presence of the spiral arms first detected by ALMA. “Spirals of this type signal the presence of baby planets, which ‘kick’ the gas, creating disturbances in the disk in the form of a wave, somewhat like the wake of a boat on a lake,” said co-author Dr. Emmanuel Di Folco, an astronomer in the Astrophysics Laboratory of Bordeaux.“As the planet rotates around the central star, this wave gets shaped into a spiral arm.”
Which of the following statements is incorrect?