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Using Wobbling Stellar Material, Astronomers Measure The Spin Of A Supermassive Black Hole For First Time

Using Wobbling Stellar Material, Astronomers Measure The Spin Of A Supermassive Black Hole For First Time
eurasiareview.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from eurasiareview.com Daily Mail and Mail on Sunday newspapers.

Czech Republic , University Of Leeds , Kavli Institute For Astrophysics , Space Research , University Of Syracuse , Masaryk University , European Space Agency , Academy Of Sciences , Research Scientist Dheeraj Dj Pasham , Tel Aviv University , Scientist Dheeraj , Polish Academy , Zwicky Transient , Interior Composition Explorer , International Space Station , Rubin Observatory , European Space ,

Space Junk is Going to be a Problem for Vera Rubin

Our space junk problem is creating a growing problem for ground-based astronomy. The problem is worst for the Vera Rubin Observatory. ....

United States , Pablo Carlos Budassi , Avi Loeb , Verac Rubin , Legacy Survey Of Space , Legacy Survey Of Space Time , United States Space Surveillance Network , Space Surveillance Networks , Vera Rubin Observatory , Giant Magellan Telescope , European Extremely Large Telescope , Space Debris , Legacy Survey , Low Earth Orbits , Low Earth Orbit , Zwicky Transient , Zwicky Transient Facility , Space Surveillance Network , Nature Astronomy , Astrophysical Journal Letters , Zero Debris , Small Space Debris ,

Space junk is going to be a problem for Vera Rubin

Space junk is going to be a problem for Vera Rubin
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.

Abraham Loeb , Pablo Carlos Budassi , Avi Loeb , Vera Rubin , Verac Rubin , Space Surveillance Networks , Us Space Surveillance Network , Legacy Survey Of Space Time , Legacy Survey Of Space , Vera Rubin Observatory , Giant Magellan Telescope , European Extremely Large Telescope , Space Debris , Legacy Survey , Low Earth Orbits , Low Earth Orbit , Zwicky Transient , Zwicky Transient Facility , Surveillance Network , Nature Astronomy , Astrophysical Journal , Zero Debris , Small Space ,

A 12.4-day periodicity in a close binary system after a supernova

Neutron stars and stellar-mass black holes are the remnants of massive star explosions1. Most massive stars reside in close binary systems2, and the interplay between the companion star and the newly formed compact object has been theoretically explored3, but signatures for binarity or evidence for the formation of a compact object during a supernova explosion are still lacking. Here we report a stripped-envelope supernova, SN 2022jli, which shows 12.4-day periodic undulations during the declining light curve. Narrow Hα emission is detected in late-time spectra with concordant periodic velocity shifts, probably arising from hydrogen gas stripped from a companion and accreted onto the compact remnant. A new Fermi-LAT γ-ray source is temporally and positionally consistent with SN 2022jli. The observed properties of SN 2022jli, including periodic undulations in the optical light curve, coherent Hα emission shifting and evidence for association with a γ-ray source, poin ....

Nordrhein Westfalen , Az Arbayjane Sharqi , United States , Portegies Zwart , Freitas Pacheco , Sloan Digital Sky , Sexten Center , Optical Survey , Zwicky Transient Facility Phase , Astronomical Data Analysis Software , Leiden Argentine Bonn , Nuclear Spectroscopic Telescope Array Nustarx Ray , Keck Infrared Transient Survey , Society Of Photo , X Photometric Survey Telescope , Intermediate Palomar Transient , Discovery Report , Name Server Discovery Report , Early Data Release , Zwicky Transient Facility , Hubble Space Telescope Key Project , Wilkinson Microwave Anisotropy Probe , Hubble Space Telescope , Apache Point Observatory Catalog , Optical Diffuse Interstellar , Open Source Softw ,

Minutes-duration optical flares with supernova luminosities

In recent years, certain luminous extragalactic optical transients have been observed to last only a few days1. Their short observed duration implies a different powering mechanism from the most common luminous extragalactic transients (supernovae), whose timescale is weeks2. Some short-duration transients, most notably AT2018cow (ref. 3), show blue optical colours and bright radio and X-ray emission4. Several AT2018cow-like transients have shown hints of a long-lived embedded energy source5, such as X-ray variability6,7, prolonged ultraviolet emission8, a tentative X-ray quasiperiodic oscillation9,10 and large energies coupled to fast (but subrelativistic) radio-emitting ejecta11,12. Here we report observations of minutes-duration optical flares in the aftermath of an AT2018cow-like transient, AT2022tsd (the ‘Tasmanian Devil’). The flares occur over a period of months, are highly energetic and are probably nonthermal, implying that they arise from a near-relativistic ....

South Korea , United States , United Kingdom , Ch Ungch Ong Bukto , Ugarte Postigo , Rivera Sandoval , International Astronomical Union , Astrophysics Source Code Library , Gildas Team , Ms High Energy Astrophysics Cambridge Univ , Thai National Telescope , Zwicky Transient Facility Bright , Spectroscopic Survey Of Transient Objects , Sloan Digital Sky , Astronomical Society Of The Pacific , Astronomical Data Analysis Software , Galactic Center , Large Array Survey Telescope , Dark Energy , Line Data Analysis Software , Discovery Report , Name Server Discovery Report , Automatic Learning , Rapid Classification , Name Server Astronote , Black Hole ,