SIMBAD references

2017AstBu..72..277B - Astrophys. Bull., 72, 277-285 (2017)

On the jet of a young star RW AurA and related problems.

BERDNIKOV L.N., BURLAK M.A., VOZYAKOVA O.V., DODIN A.V., LAMZIN S.A. and TATARNIKOV A.M.

Abstract (from CDS):

Having compared images of a jet of the young star RW AurA obtained with an interval of 21.3 yr, we have found that the outermost knots of the jet have emerged approximately 350 years ago. We come up with arguments that the jet itself has appeared at the same time, and intensive accretion onto the star has begun due to rearrangement of its protoplanetary disk structure caused by the tidal effect of the companion RW Aur B. More precisely suppose that intensification of accretion is a response to changing conditions in the outer-disk regions which has followed after the sound wave, generated by these changes, has passed the disk in the radial direction. In our opinion difference in the parameters of blue and red lobes of the RWAurA jet is a result of the asymmetric distribution of the circumstellar matter above and below the disk due to companion's passage. It was found from the analysis of the RW Aur historical light curve that deep and long-term (delta t > 150 days) light attenuations of RW AurA observed after 2010 had no precedents in the previous 110 years.We also associate the change in the character of photometric variability of the star with the rearrangement of the structure of inner ( r < 1 AU) regions of its protoplanetary disk, and discuss why these changes have begun only 350 years after the beginning of the active accretion phase.

Abstract Copyright:

Journal keyword(s): stars: variables: T Tauri - Herbig Ae/Be - stars: individual: RW Aur - binaries: visual - ISM: jets and outflows - accretion - accretion discs

Status at CDS : Objects in title, abstract, text, figures, and all or part of small table(s) being processed in SIMBAD.

Simbad objects: 1

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