Английская Википедия:HOPS 383

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Шаблон:Sky Шаблон:Starbox begin Шаблон:Starbox image Шаблон:Starbox observe Шаблон:Starbox character Шаблон:Starbox astrometry Шаблон:Starbox catalog Шаблон:Starbox reference Шаблон:Starbox end HOPS 383 is a Class 0 protostar. It is the first Class 0 protostar discovered to have had an outburst,[1] and as of 2020, the youngest protostar known to have had an outburst.[1] The outburst, discovered by the Herschel Orion Protostar Survey (HOPS) team, was first reported in February 2015 in The Astrophysical Journal Letters.[2]

Observations

Outburst

HOPS 383 had an outburst between 2004 and 2006 (a "dramatic mid-infrared brightening"); the increase in magnitude was detectable at the 24 μm (35 times increase) and 4.5 μm, and was also detectable at the submillimetre.[3]Шаблон:Rp After 6 years, observations showed no signs of fading.[3]Шаблон:Rp

X-Ray

The Chandra X-Ray Observatory detected an X-ray flare from HOPS 383 in December 2017.[4] This was the first detection of X-rays from a Class 0 protostar that will evolve into a sun-like star.[4] The flare lasted 3 hours and 20 minutes.[5] It significantly impacted the previously-thought timeline for when such events occur in the evolution of a protostar. Furthermore, it has improved astronomers' understanding of the Sun's earlier evolutionary stages.

References

Шаблон:Reflist

Шаблон:Stars of Orion