English
 
Help Privacy Policy Disclaimer
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
Add to Basket
  Local TagsRelease HistoryDetailsSummary

Released
Journal Article

APEX Observations of the CO Envelope around the Young FUor-type Star V883 Ori

MPS-Authors

White,  J. A.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Kóspál,  Á.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Rab,  C.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Ábrahám,  P.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Cruz-Sáenz de Miera,  F.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Csengeri,  T.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Fehér,  O.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Güsten,  R.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Henning,  T.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Vorobyov,  E.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Audard,  M.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

Postel,  A.
Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners;

External Resource

https://ui.adsabs.harvard.edu/abs/2019ApJ...877...21W
(Any fulltext)

Fulltext (restricted access)
There are currently no full texts shared for your IP range.
Fulltext (public)
There are no public fulltexts stored in PuRe
Supplementary Material (public)
There is no public supplementary material available
Citation

White, J. A., Kóspál, Á., Rab, C., Ábrahám, P., Cruz-Sáenz de Miera, F., Csengeri, T., et al. (2019). APEX Observations of the CO Envelope around the Young FUor-type Star V883 Ori. The Astrophysical Journal, 877.


Cite as: https://hdl.handle.net/21.11116/0000-0005-D214-7
Abstract
The accretion-driven outbursts of young FU Orionis-type stars may be a common stage of pre-main-sequence evolution and can have a significant impact on the circumstellar environment as it pertains to the growth of solids and eventually planets. This episodic accretion is thought to be sustained by additional gas infalling from the circumstellar envelope and disk. We present APEX observations of the CO gas in the envelope around V883 Orionis, a young outbursting star. The observations mapped the 12CO(4-3), 12CO(3-2), and 13CO(3-2) lines with the FLASH+ instrument and the 12CO(6-5) line with the SEPIA instrument. We detected high signal-to-noise emission extending out to radii >10,000 au and calculated integrated fluxes of 1100 Jy km s−1 for 12CO(6-5), 2400 Jy km s−1 for 12CO(4-3), 1600 Jy km s−1 for 12CO(3-2), and 450 Jy km s−1 for 13CO(3-2). We used the thermochemical code PRODIMO to test several models and find the data are best described by an envelope structure with M env ≈ 0.2-0.4 M ☉ and a mass- infall rate of {\dot{M}}\inf =1{--}2 {10}-6 {M}ȯ {yr}}-1. We infer that the observed envelope and outflow structure around V883 Ori could be caused by multiple outbursts, consistent with episodic accretion.