Английская Википедия:BP Tauri

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Шаблон:Short description Шаблон:Sky Шаблон:Starbox begin Шаблон:Starbox image Шаблон:Starbox observe Шаблон:Starbox character Шаблон:Starbox astrometry Шаблон:Starbox detail Шаблон:Starbox catalog Шаблон:Starbox reference Шаблон:Starbox end

BP Tauri is a young T Tauri star in the constellation of Taurus about Шаблон:Val away, belonging to the Taurus Molecular Cloud.

Properties

BP Tauri is still accreting mass at the low rate of Шаблон:Val and Шаблон:Val/year,[1] as evidenced by X-rays produced by infalling matter,[2] and may be still in the process of spin-up.[3] Its chromospheric magnetic fields are rather strong at 2.5Шаблон:± kilogauss,[4] and contains strong non-dipole components.[5] The star is producing 40% of its luminosity via the energy released by accretion.[6]

Suspected companions

There were two suspected stellar companions to BP Tauri on projected separations 3.00 and Шаблон:Val.[7] These were proven to be a background stars not related to BP Tauri with Gaia data though.[8][9]

Protoplanetary system

The star is surrounded by a protoplanetary disk. The disk is strongly depleted in carbon and carbon monoxide.[10] Шаблон:OrbitboxPlanet begin Шаблон:OrbitboxPlanet disk Шаблон:Orbitbox end

Variability

BP Tauri varies in brightness, producing a strong flares due to unsteady accretion[6] held by stellar magnetic field. The lightcurve period is variable from 6.1 to 7.6 days, and quiescent periods without variability are also known.[11]

References

Шаблон:Reflist

Шаблон:Stars of Taurus

  1. Шаблон:Citation
  2. Шаблон:Citation
  3. Шаблон:Citation
  4. Ошибка цитирования Неверный тег <ref>; для сносок Flores2019 не указан текст
  5. Шаблон:Citation
  6. 6,0 6,1 Ошибка цитирования Неверный тег <ref>; для сносок Ericco2001 не указан текст
  7. Шаблон:Cite journal
  8. Шаблон:Cite Gaia EDR3
  9. Шаблон:Cite Gaia EDR3
  10. Шаблон:Cite journal
  11. Шаблон:Cite journal