Candidate planetary systems detected by microlens method are thought to travel at least 540 km (1.2 million mph) per 540 km.
Impressions of the superniputin exoplanet artist orbiting a low-mass star near the center of our Milky Way galaxy. Image credits: NASA/JPL-Caltech/R. Hurt, Caltech-IPAC.
“I think this is the so-called Super Neptune world orbiting a low-mass star at the distance between Venus and Earth's orbit,” University of Maryland, College Park, NASA Goddard. At the Space Flight Center.
“The star is so weak that it is outside its habitable zone. If so, it will be the first planet ever discovered orbiting a fast star.”
The system was first discovered indirectly in 2011 thanks to the microlens event MOA-2011-BLG-262.
“Microlenses occur because a large amount of presence distorts the fabric of space-time,” the astronomer explained.
“Whenever an intervening object appears to drift near a background star, light from the star curve passes through space-time, distorted around nearby objects.”
“If the alignment is particularly close, the distortion around the object behaves like a natural lens and can amplify the light of the background star.”
In MOA-2011-BLG-262, microlens signals revealed pairs of celestial bodies.
Astronomers have determined relative masses (one is about 2,300 times heavier than the other), but their exact mass depends on how far they are from the Earth.
“It's easy to determine the mass ratio,” said Dr. David Bennett, a senior research scientist at the Goddard Space Flight Center at the University of Maryland, College Park and NASA.
The MOA-2011-BLG-262 Discovery Team has a microlens object that is about 20% of the stars, about 29 times heavier than Earth, or Jupiter's mass with Exomoon. They suspected it was one of roughly four times more illicit planets.
To understand which explanations were more likely, Dr. Terry, Dr. Bennett and his colleagues searched data from the Keck Observatory in Hawaii and the Gaia satellite at the ESA.
If the pair are illegitimate Exoplanets and Exomoons, they will not look effective – dark objects lost in the black space of the universe.
Researchers discovered a strong suspect about 24,000 light years away and put it in the bulge of the Milky Way galaxy.
By comparing the position of the stars in 2011 and 2021, they calculated its speed.
But that's its 2D motion. If it's heading towards us or away from us, it must be moving even faster.
Its true speed may increase to the galaxy's escape speed exceeding 600 km/s (1.3 million mph) per second.
If so, the planetary system is destined to traverse intergalactic space for millions of years to come.
“To make sure the newly identified star is part of the system that caused the 2011 signal, we looked again in another year and it moved the right amount and moved in the right direction. And I want to see where it is. We've detected a signal,” Dr. Bennett said.
“If a high-resolution observation indicates that the stars remain in the same position, it can be sure that it is not part of the system that caused the signal,” says Aparna Bhatacharya at the University of Maryland. The doctor said. College Park and NASA's Goddard Space Flight Center.
“That means the Rogue Planet and the Exomoon model are preferred.”
Team's paper It was released this week Astronomy Journal.
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Sean K. Terry et al. 2025. A candidate high-speed peeling system for galaxy swelling. AJ 169, 131; doi:10.3847/1538-3881/ad9b0f
Source: www.sci.news
