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Time-variability and disk geometry in Herbig Ae/Be disks

Published online by Cambridge University Press:  13 January 2020

R. Szakáts ,
P. Ábrahám  and
Á. Kóspál Open the ORCID record for Á. Kóspál [Opens in a new window]
R. Szakáts
Affiliation:
Konkoly Observatory, Research Centre for Astronomy and Earth Sciences, Hungarian Academy of Sciences, Konkoly-Thege Miklós út 15-17, H-1121, Budapest, Hungary email: szakats.robert@csfk.mta.hu
P. Ábrahám
Affiliation:
Konkoly Observatory, Research Centre for Astronomy and Earth Sciences, Hungarian Academy of Sciences, Konkoly-Thege Miklós út 15-17, H-1121, Budapest, Hungary email: szakats.robert@csfk.mta.hu
Á. Kóspál
Affiliation:
Konkoly Observatory, Research Centre for Astronomy and Earth Sciences, Hungarian Academy of Sciences, Konkoly-Thege Miklós út 15-17, H-1121, Budapest, Hungary email: szakats.robert@csfk.mta.hu Max Planck Institute for Astronomy, Königstuhl 17, D-69117 Heidelberg, Germany
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Abstract

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The origin of optical-infrared variability in young, intermediate mass Herbig Ae/Be stars is linked to their circumstellar disk. Therefore, variability could serve as a diagnostic tool to constrain the structure and dynamics of the (inner) disk. Here we discuss this diagnostic potential, and report some preliminary results from our coordinated BV RIJHKs and Spitzer monitoring observations of nine Herbig Ae stars. We aim to understand the response of the inner disks thermal emission on the changing stellar irradiation, and to separate it from UX Orionis-type fading events, which also provide information on the disk. This project is a pilot study for the era of time domain astronomy of young stars, opened by Kepler K2, Gaia, ASAS-SN, TESS, Spitzer, WISE, and JWST.

Keywords

stars: pre–main-sequencecircumstellar matter
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 14 , Symposium S345: Origins: From the Protosun to the First Steps of Life , August 2018 , pp. 375 - 377
Copyright
© International Astronomical Union 2020 

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