Distinguishing an ejected blob from alternative flare models at the Galactic centre with GRAVITY - MULTI-ECHELLE Access content directly
Journal Articles Monthly Notices of the Royal Astronomical Society Year : 2014

Distinguishing an ejected blob from alternative flare models at the Galactic centre with GRAVITY

F. H. Vincent
P. Varniere
F. Eisenhauer
  • Function : Author
P. J. Armitage
  • Function : Author

Abstract

The black hole at the Galactic centre exhibits regularly flares of radiation, the origin of which is still not understood. In this article, we study the ability of the near-future GRAVITY infrared instrument to constrain the nature of these events. We develop realistic simulations of GRAVITY astrometric data sets for various flare models. We show that the instrument will be able to distinguish an ejected blob from alternative flare models, provided the blob inclination is >= 45deg, the flare brightest magnitude is 14 <= mK <= 15 and the flare duration is >= 1h30.
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Dates and versions

hal-00983424 , version 1 (01-08-2022)

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F. H. Vincent, T. Paumard, Guy Perrin, P. Varniere, F. Casse, et al.. Distinguishing an ejected blob from alternative flare models at the Galactic centre with GRAVITY. Monthly Notices of the Royal Astronomical Society, 2014, 441 (4), pp.3477-3487. ⟨10.1093/mnras/stu812⟩. ⟨hal-00983424⟩
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