[ad_1]
Posted 22 & # 39; November 2018
In 2016 a group & # 39; astronomers from Pennsylvania State University who cited rilaxxaw preprint star KIC 8462852 "strange light curve" as "consistent with & # 39; ' swarm & # 39; aliens built megastructures. In this ordinary star soon went viral as "the most mysterious star in the universe" as the Yale astronomer Tabetha Boyajian described KIC 8462852, popularly known as star & # 39; Tabby.
"The heads found by Kepler are real. Something seems to go & # 39; forward from this star and we still have no idea & # 39; X & # 39; is," said the German astronomer Michael Hippke.
But research & # 39; up led by Huan Meng, an astronomer at the University & # 39; Arizona concluded that the microscopic dust ring originating from ċirkostulari material found in the star system is causing turning and tbajjija exhibited by KIC 8462852. "It can & # 39; be anything from interstellar medium", says Meng – which means the item (s) in focus & # 39; this investigation is definitely within the planetary system of the star & # 39; Tabby.
Now, the astronomisti using the VISTA telescope in the desert & # 39; Atacama in northern & # 39; Chile discovered the stunning stars and tbajjit the odd light are reminiscent of the star & # 39; Tabby.
The team spotted the object in the data were part of a larger survey of the center of the galaxy called the Variable VISTA in Vía LACTEAS, or VVV. Instead of illuminating, this star in & # 39; getting turned down. The team called VVV-WIT-07, for "X & # 39; is this?"
Saito and his colleagues plan to follow the star b & # 39; most telescopes with & # 39; health, such as the Gemini telescope & # 39; 8.1 meters or Ataiama Large Millimeter Array, both in Chile.
"If this phenomenon is the same as what is happening with & # 39; the star & # 39; Tabby, then we can not invoking explanation elaborated on x & # 39; is happening in two systems", says Boyajian . "If you're starting to see stars like this all over the place, then have to be very common thing that occurs in nature. That's really cool."
The behavior of & # 39; new star is baffling, says astronomer Roberto Saito of & # 39; Federal University & # 39; & # 39 in Santa Catarina; Franianópolis, Brazil. He and his colleagues reported the flickering of the star in the 6 & # 39; November at arXiv.org.
"We do not know x & # 39; is the object," he says. "And what is interesting." The star can & # 39; have some sort of & # 39; orbitanti debris periodically block the starlight, but Saito and colleagues say they need more observations to figure out if that is possible or if the parċleta be caused by something else.
From 2010 to 2018, the star power waxed and failed with no set pattern similar to that of the star & # 39; Tabby, except light & # 39; VVV-WIT-07 fell & # 39; up to 80 percent, while the star & # 39; Tabby decreased by & # 39; only about 20 percent.
As VVV-WIT-07 is located in the galaxy plane, the view from Earth to the star is full & # 39; dust, making it difficult to provide details such as the distance of the star or x & # 39 type & # 39;; star. If young stars is variable, for example, then its light lights can be internal.
"Pretty much everything on the table for right now," Boyajian says. "We need more data."
image credit: Comets JPL / Caltech to converge on a star.
The Daily Galaxy via & # 39; University & # 39; Vanderbilt, R.K. Saito et al. VVV-WIT-07: Other star & # 39; Boyajian or object & # 39; Mamajek? arXiv: 1811.02265. Posted on 6 & # 39; November, 2018, and dailygalaxy.com
[ad_2]
Source link
