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2 clusters · 4 sources · 4 days · First seen · Last updated

Categories: TECHNOLOGY

V445 Puppis helium nova gas bullets

Entities: Hubble Space Telescope · NASA · V445 Puppis · University of Warwick · John Mills

Overview

Astronomers first reported that the rare helium nova V445 Puppis, which erupted in 2000, had cleared its surrounding dust cloud and revealed clumps of oxygen‑rich gas moving at speeds up to about 20 million miles per hour.

A few days later, observations with the Hubble Space Telescope, NASA’s TESS mission and the Very Large Telescope measured the same ejecta traveling at roughly 32 million km/h. The study, led by John Mills of the University of Warwick, confirmed the high‑speed “cosmic bullets” and highlighted their uncertain origin, noting that such eruptions may inform understanding of the pathways to Type Ia supernovae.

Timeline

  1. about 24 hours ago

    [TECHNOLOGY] 2 sources
    V445 Puppis helium nova ejects 32 million km/h cosmic bullets

    Hubble observed 32 million km/h oxygen‑rich ejecta from the rare helium nova V445 Puppis, a binary white‑dwarf system studied by John Mills and colleagues.

  2. 5 days ago

    [TECHNOLOGY] 2 sources
    Helium nova V445 Puppis ejects unprecedented high‑speed gas bullets

    A rare helium nova (V445 Puppis) in the Milky Way has emitted unprecedented high‑speed gas “bullets,” observed after dust cleared; researchers say it’s the first such finding in any nova.

Sources

independent.co.uk · ithome.com · mobtech.interia.pl · uk-times.com