Gemini South tagged posts

Gemini South Observes Ultra-Hot Nova Erupting With Surprising Chemical Signature

Astronomers uncover extremely hot and violent eruption from first ever near-infrared analysis of a recurrent nova outside of the Milky Way Galaxy. Using the Gemini South telescope, one half of the International Gemini Observatory, partly funded by the U.S. National Science Foundation and operated by NSF NOIRLab, and the Magellan Baade Telescope, astronomers have for the first time observed a recurring nova outside of the Milky Way in near-infrared light. The data revealed highly unusual chemical emissions as well as one of the hottest temperatures ever reported for a nova, both indicative of an extremely violent eruption.

Nova explosions occur in binary star systems in which a white dwarf — the dense remnant of a dead star — continually siphons stellar material from a nearby compan...

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Gemini South’s high-def version of ‘A Star is Born’

Two near-infrared images of the star-forming region in the Carina Nebula known as the Western Wall illustrate the capabilities of a wide-field adaptive optics camera at the Gemini South 8.1-meter telescope on Cerro Pachón mountain in Chile. Both images were captured by captured by Rice University astronomer Patrick Hartigan and colleagues from telescopes at the National Science Foundation’s NOIRLab observatory near near Vicuña, Chile. The lefthand image was taken with the four-meter Blanco telescope’s Extremely Wide-Field Infrared Imager in 2015. The righthand image, taken in January 2018, has about 10 times finer resolution thanks to a mirror in the Gemini South Adaptive Optics Imager that changes shape to correct for atmospheric distortion caused by Earth’s atmosphere...
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