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Astronomers catch 'intruder' red-handed in rarely detected stellar flyby event 5nvklj





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Astronomers catch 'intruder' red-handed in rarely detected stellar flyby event

Dragon
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Astronomers catch 'intruder' red-handed in rarely detected stellar flyby event Empty Astronomers catch 'intruder' red-handed in rarely detected stellar flyby event

Post by Dragon Sat Jan 15, 2022 2:55 am

Scientists using the Atacama Large Millimeter/submillimeter Array (ALMA) and the Karl G. Jansky Very Large Array (VLA) made a rare detection of a likely stellar flyby event in the Z Canis Majoris (Z CMa) star system.

An intruder object—not bound to the system—came in close proximity to and interacted with the environment surrounding the binary protostar, causing the formation of chaotic, stretched-out streams of dust and gas in the disk surrounding it.


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Astronomers catch 'intruder' red-handed in rarely detected stellar flyby event 334pu7m
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Astronomers catch 'intruder' red-handed in rarely detected stellar flyby event Empty Re: Astronomers catch 'intruder' red-handed in rarely detected stellar flyby event

Post by Dragon Sat Jan 15, 2022 2:56 am

Astronomers catch 'intruder' red-handed in rarely detected stellar flyby event Alma-catches-intruder
Credit: ALMA (ESO/NAOJ/NRAO), B. Saxton (NRAO/AUI/NSF)

Scientists have captured an intruder object disrupting the protoplanetary disk—birthplace of planets—in Z Canis Majors (Z CMa), a star in the Canis Majoris constellation.

This artist’s impression shows the perturber leaving the star system, pulling a long stream of gas from the protoplanetary disk along with it.

Observational data from the Subaru Telescope, Karl G. Jansky Very Large Array, and Atacama Large Millimeter/submillimeter Array suggest the intruder object was responsible for the creation of these gaseous streams, and its “visit” may have other as yet unknown impacts on the growth and development of planets in the star system.


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Astronomers catch 'intruder' red-handed in rarely detected stellar flyby event 334pu7m
Dragon
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Astronomers catch 'intruder' red-handed in rarely detected stellar flyby event Empty Re: Astronomers catch 'intruder' red-handed in rarely detected stellar flyby event

Post by Dragon Sat Jan 15, 2022 2:58 am

Astronomers catch 'intruder' red-handed in rarely detected stellar flyby event Alma-catches-intruder-1
. Credit: ALMA (ESO/NAOJ/NRAO), S. Dagnello (NRAO/AUI/NSF), NAOJ

As stars grow up, they often interact with their sibling stars—stars growing up near to them in space—but have rarely been observed interacting with outside, or intruder, objects.

Scientists have now made observations of an intruder object disturbing the protoplanetary disk around Z Canis Majoris, a star in the Canis Major constellation, which could have major implications for the development of baby planets.

Perturbations, including long streams of gas, were observed in detail by the Subaru Telescope in the H-band, the Karl G. Jansky Very Large Array in the Ka-band, and using the Atacama Large Millimeter/submillimeter Array’s Band 6 receiver.


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Astronomers catch 'intruder' red-handed in rarely detected stellar flyby event 334pu7m
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Astronomers catch 'intruder' red-handed in rarely detected stellar flyby event Empty Re: Astronomers catch 'intruder' red-handed in rarely detected stellar flyby event

Post by Dragon Sat Jan 15, 2022 2:59 am

Astronomers catch 'intruder' red-handed in rarely detected stellar flyby event Alma-catches-intruder-2
Credit: ALMA (ESO/NAOJ/NRAO), S. Dagnello (NRAO/AUI/NSF), NAOJ

Scientists have made the first comprehensive multi-wavelength observational study of an intruder object disturbing the protoplanetary disk—or birthplace of planets—surrounding the Z Canis Majoris star (Z CMa) in the constellation Canis Major.

This composite image includes data from the Subaru Telescope, Jansky Very Large Array, and the Atacama Large Millimeter/submillimeter Array, revealing in detail the perturbations, including long streams of material, made in Z CMa’s protoplanetary disk by the intruding object.


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Astronomers catch 'intruder' red-handed in rarely detected stellar flyby event 334pu7m
Dragon
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Astronomers catch 'intruder' red-handed in rarely detected stellar flyby event Empty Re: Astronomers catch 'intruder' red-handed in rarely detected stellar flyby event

Post by Dragon Sat Jan 15, 2022 3:00 am



For the first time, scientists have captured an intruder object “breaking and entering” into a developing star system.


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Astronomers catch 'intruder' red-handed in rarely detected stellar flyby event 334pu7m

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