Английская Википедия:Elias 2-27

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Шаблон:Sky Шаблон:Starbox begin Шаблон:Starbox observe Шаблон:Starbox character Шаблон:Starbox astrometry Шаблон:Starbox detail Шаблон:Starbox catalog Шаблон:Starbox reference Шаблон:Starbox end Elias 2-27 (2MASS J16264502-2423077)[1] is a YSO star[1] with a protoplanetary disk around it, located in the Ophiuchus Molecular Cloud (ρ Oph Cld, 5 Oph Cld, Ophiuchus Dark Cloud), a star-forming region in the Ophiuchus constellation, some Шаблон:Convert away. This star system became the first ever observed with density waves in the disk, giving it a spiral structure. Elias 2-27 is located near the double star Rho Ophiuchi (5 Ophiuchi).[2][3]

Disk

Файл:Spirals with a Tale to Tell.jpg
Protoplanetary disk surrounding the young star Elias 2-27, located some 450 light years away.[4]

In 2016, it was discovered that disk perturbations from density waves organized the disk debris into a pinwheel structure, with sweeping spiral arms; using observations from the Atacama Large Millimeter Array (ALMA) radio telescope. This marks the first instance of such an observation in a protoplanetary disk, though they have been previously predicted. The spiral arms start at Шаблон:Convert and extend out to Шаблон:Convert.[5][2] The disk has a 14 AU wide gap at 69 AU radius with a reduced amount of dust.[6] The disk is very massive at 0.08Шаблон:±Шаблон:Solar mass.[7] Шаблон:OrbitboxPlanet begin Шаблон:OrbitboxPlanet disk Шаблон:Orbitbox end

Further reading

References

Шаблон:Reflist

Шаблон:Stars of Ophiuchus

  1. 1,0 1,1 Ошибка цитирования Неверный тег <ref>; для сносок SIMBAD не указан текст
  2. 2,0 2,1 Шаблон:Cite news
  3. Шаблон:Cite web
  4. Шаблон:Cite web
  5. Шаблон:Cite news
  6. Шаблон:Citation
  7. Шаблон:Citation