Multi-Epoch Coronagraphic Imaging of Herbig Ae Circumstellar Disk Systems

Details Multi-Epoch Coronagraphic Imaging of Herbig Ae Circumstellar Disk Systems Multi-Epoch Coronagraphic Imaging of Herbig Ae Circumstellar Disk Systems

Jan 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009aas...21340906w&link_type=abstract

American Astronomical Society, AAS Meeting #213, #409.06; Bulletin of the American Astronomical Society, Vol. 41, p.208

Astronomy and Astrophysics

Astrophysics

Scientific paper

We present multi-epoch coronagraphic imaging polarimetry observations of select Herbig Ae stars, based on data obtained with UKIRT's Imager-Spectrometer (UIST). We will focus on the HD 163296 system, whose spatially resolved scattered light disk exhibited variability in multi-epoch HST coronagraphic observations, possibly due to variable self-shadowing induced by changes in the structure of the inner disk wall (Wisniewski et al 2008; Sitko et al 2008). The morphology and surface brightness of the scattered light disk from our 2008-epoch J- and H-band UKIRT data will be compared against our 2007-epoch H-band UKIRT data to further diagnose the variability of this system.
J.P. Wisniewski acknowledges the support of a NSF Astronomy & Astrophysics Postdoctoral Fellowship (0802230).

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