SIMBAD references

2008A&A...492L..21S - Astronomy and Astrophysics, volume 492, L21-24 (2008/12-2)

Captured at millimeter wavelengths: a flare from the classical T Tauri star DQ Tauri.


Abstract (from CDS):

For several hours on 2008 April 19, the T Tauri spectroscopic binary DQ Tau was observed to brighten, reaching a maximum detected flux of 468mJy and likely making it (briefly) the brightest object at 3mm in the Taurus star-forming region. We present the light curve of a rarely before observed millimeter flare originating in the region around a pre-main-sequence star, and the first from a classical T Tauri star. We discuss the properties and nature of the flaring behavior in the context of pulsed accretion flows (the current picture based largely on studies of this object's optically variable spectrum), as well as magnetospheric re-connection models (a separate theory that predicts millimeter flares for close binaries of high orbital eccentricity). We believe that the flare mechanism is linked to the binary orbit, and therefore periodic. DQ Tau makes a strong case for multi-wavelength follow-up studies, performed in parallel, of future flares to help determine whether magnetospheric and dynamical interactions in a proto-binary system are independent.

Abstract Copyright:

Journal keyword(s): radio continuum: stars - stars: individual: DQ Tau - stars: pre-main sequence - stars: binaries: spectroscopic - stars: flare - stars: magnetic fields

Simbad objects: 12

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