The First Adaptive Optics High Resolution Mid-IR Imaging of Evolved Stars: Case Studies of RV Boo and AC Her

Details The First Adaptive Optics High Resolution Mid-IR Imaging of Evolved Stars: Case Studies of RV Boo and AC Her The First Adaptive Optics High Resolution Mid-IR Imaging of Evolved Stars: Case Studies of RV Boo and AC Her

Jul 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004aspc..313...82b&link_type=abstract

Asymmetrical Planetary Nebulae III: Winds, Structure and the Thunderbird, Proceedings of the conference held 28 July - 1 August

Astronomy and Astrophysics

Astronomy

Scientific paper

We present high resolution (˜0.1 arcsec) very high Strehl ratio (0.97±0.03) mid-IR images of RV Boo and AC Her utilizing the MMT adaptive secondary AO system. RV Boo was imaged at 9.8 μm; AC Her was imaged at 9.8, 11.7, and 18 μm. At such high Strehls we can achieve super-resolutions of 0.1 arcsec by deconvolving RV Boo with a PSF derived from an unresolved star. We resolve RV Boo into a 0.16 arcsec FWHM extension at a position angle of 120 degrees. At a distance of 390 pc, this corresponds to a FWHM of ˜60 AU. We measure a total flux at 9.8 μm of 145±24 Jy for the disk and star. For AC Her, we find no extension greater than 0.2 arcsec.

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