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A planetary collision afterglow and transit of the resultant debris cloud

Planets grow in rotating disks of dust and gas around forming stars, some of which can subsequently collide in giant impacts after the gas component is removed from the disk1–3. Monitoring programmes with the warm Spitzer mission have recorded substantial and rapid changes in mid-infrared output for several stars, interpreted as variations in the surface area of warm, dusty material ejected by planetary-scale collisions and heated by the central star: for example, NGC 2354–ID8 (refs. 4,5), HD 166191 (ref. 6) and V488 Persei7. Here we report combined observations of the young (about 300 million years old), solar-like star ASASSN-21qj: an infrared brightening consistent with a blackbody temperature of 1,000 Kelvin and a luminosity that is 4 percent that of the star lasting for about 1,000 days, partially overlapping in time with a complex and deep, wavelength-dependent optical eclipse that lasted for about 500 days. The op ....

United States , Distrito Federal , Rizzo Smith , Astronomical Society Of The Pacific , Analysis Center , Sky Automated Survey For Supernovae , American Chemical Society , G All Sky Automated Survey Catalog , Astrophysics Source Code Library , Exoplanet Survey Satellite , Sky Automated , Astronomical Data Analysis Software , Space Sci , All Sky Automated Survey , All Sky Automated , Acta Astron , Sky Automated Survey , Vizier On Line Data Catalog , Remote Observatory Atacama Desert , Variable Star Observers , Release Products , Infrared Processing , Astronomical Society , Open Science , Milky Way , Large Magellanic Cloud ,

Star's strange behavior ascribed to giant planet smash-up

Emissions in infrared shot up, then visible light dropped two years later. ....

Sky Automated Survey For Supernovae , Solar System , All Sky Automated Survey , Infrared Survey ,

Astronomers Detect Afterglow of Collision between Two Ice-Giant Exoplanets

Astronomers Detect Afterglow of Collision between Two Ice-Giant Exoplanets
sci.news - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from sci.news Daily Mail and Mail on Sunday newspapers.

Matthew Kenworthy , Zoe Leinhardt , Mark Garlick , University Of Bristol , Sky Automated Survey For Supernovae , Las Cumbres Observatory Global Telescope Network , All Sky Automated Survey , Leiden Observatory , Infrared Survey Explorer , Webb Space Telescope ,

Observations explore the nature of infrared source IRAS 07253-2001

Observations explore the nature of infrared source IRAS 07253-2001
phys.org - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from phys.org Daily Mail and Mail on Sunday newspapers.

Sankt Peterburg , Natalia Ikonnikova , Sky Automated Survey For Supernovae , Sciencex Network , Lomonosov Moscow State University , Caucasian Mountain Observatory , All Sky Automated Survey , Long Term Brightness Variability , Spectral Peculiarities ,

Hubble snaps a seemingly peaceful galaxy. Don't be fooled.

NASA's Hubble Space Telescope captured an image of a spiral galaxy, UGC 11860, to study the remnants of a supernova detected in 2014. ....

United States , Carl Sagan , Tony Korody Sygma , Sky Automated Survey For Supernovae , European Space Agency , Space Telescope , All Sky Automated Survey , Tony Korody , Light Speed ,