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Upcoming guests on Daily Space:
- Dr. Matthew Graham
July 2, 2020
“Black Hole Collision May Have Exploded with Light”
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One particularly interesting kind of flare and fade system is the symbiotic nova V407 Cygni. This system consists of a Mira variable – a giant red star that pulsates over a period of hundreds of days – and a compact white dwarf star.
A star recently went missing. This is one of those stories where I took the time to read the research paper in detail because the press release headline just seemed way too fantastic – stars shouldn’t just disappear. But this one did.
One theory that is slowly starting to gain traction is the possibility that the theoretical particle the axion might be that missing dark matter particle.
In a new paper accepted to Astrophysical Journal Letters, a team with first author Jinyi Yang has announced the discovery of another super distant quasar, this one seen 700 million years after the Big Bang.
There is new evidence that asteroids impacted ancient Martian glaciers and the resulting splash, for lack of a better term, drove water and dust into the Martian atmosphere.
In planetary science, the Gemini Planet Imager has spent the last four years providing the sharpest images to date of the disks around young stars, including a newly released catalog of 26 debris disks.
The Hubble Space Telescope has imaged the changing shadow of a planetary disk on background dust and gas clouds, and like a shadow puppet of a bat, it appears to flap dark wings.
Several years ago, theorists predicted that if a black hole merger occurred in the heart of a galaxy, the merger of the two black holes, under the gravitational influence of a supermassive black hole, could cause the resulting merged black hole to fly out of the heart of the galaxy and into the surrounding material.
In April of 2019, a binary star system of extremely unequal mass was detected merging in a galaxy some 800 million light-years away. The more massive object was a fairly common 23 solar-mass black hole, but the smaller object was estimated to be about 2.6 solar masses, and no one is completely sure if it is a neutron star or a black hole.