4 天之前 · Decades of W.M. Keck Observatory research on the famed Wolf-Rayet 104 “pinwheel star” system has taken a new turn.

6 天之前 · A new spin on decades of W. M. Keck Observatory research Maunakea, Hawaiʻi – A recent study reveals the famous Wolf-Rayet 104 “pinwheel star” holds more mystery but is even less likely to be the potential ‘Death Star’ it was once thought to be. Research by W. M. Keck Observatory Instrument Scientist and astronomer Grant Hill finally confirms what has been suspected for years: WR 104 ...

Exploring the local and distant Universe from the world’s largest and most scientifically productive telescopes on Earth. Much of what we do is hypothesis testing, or refining previous measurements, but sometimes there is this bolt out of the blue of a completely unanticipated discovery. That is rare, but it is the best!

They use sodium lasers to excite sodium atoms that naturally exist in the atmosphere 90 km (55 miles) above the Earth’s surface. The laser creates an “artificial star” that allows the Keck adaptive optics system to observe 70-80 percent of the targets in the sky, compared to the 1 percent accessible without the laser.

6 天之前 · A recent study reveals that the famous Wolf-Rayet 104 "pinwheel star" holds more mystery but is even less likely to be the potential "death star" it was once thought to be. Research by W. M. Keck ...

New research led by W. M. Keck Observatory Instrument Scientist and astronomer Grant Hill has confirmed what scientists have long suspected—WR 104 comprises two massive stars: a Wolf-Rayet star ...

2024年10月24日 · Now, with the help of the Caltech-built Keck Cosmic Web Imager (KCWI) at the W. M. Keck Observatory in Hawai‘i, astronomers have, for the first time, mapped the location of those unusual filaments in three dimensions in addition to the speed at which they are streaming outward from the site of the blast.

3 天之前 · Tags: astronomy news astrophysics binary star system cosmic dust formation cosmic radiation Death Star star deep space exploration exoplanet safety gamma-ray astronomy gamma-ray burst high-energy astrophysics Keck Observatory pinwheel star space hazards stellar evolution stellar winds supernova explosion universe mysteries Wolf-Rayet star WR 104

3 天之前 · An illustration of the so-called "Death Star" known as Wolf-Rayet 104 which appears like a cosmic pinwheel. | Credit: U.C. Berkeley Space Sciences Laboratory/W. M. Keck Observatory

3 天之前 · In the latest study by Keck Observatory Instrument Scientist and astronomer Grant Hill, new spectroscopic observations using three Keck instruments—LRIS, ESI, and NIRSPEC (Low Resolution Imaging ...