Recovering the structure of edge-on debris disks non-parametrically

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• Yinuo Han, University of Cambridge
• Wednesday 02 March 2022, 13:15-13:45
• The Hoyle Lecture Theatre + Zoom .

If you have a question about this talk, please contact Francisco Paz-C.

The structure of debris disks carries an abundance of information, such as on the presence of embedded bodies and the dynamical history of the planetary system. Edge-on debris disks offer a unique opportunity to simultaneously access the radial and vertical distribution of material, however recovering either distribution in an unbiased way is challenging. In this talk, I present a non-parametric method to recover the face-on surface brightness profile and height profile given an observation of an azimuthally symmetric, edge-on debris disk. Compared to parametric approaches, this method not only avoids biasing the fitted profiles towards an assumed functional form, but also provides more realistic uncertainties on the underlying model. I also present results from applying the algorithm to ALMA and mid-infrared observations, comparing our results with those from parametric studies for each example and discussing the implications of the new structural information.

This talk is part of the Institute of Astronomy Seminars series.

This talk is included in these lists:

• Combined External Astrophysics Talks DAMTP
• Cosmology lists
• Cosmology, Astrophysics and General Relativity
• Institute of Astronomy Seminars
• Institute of Astronomy Talk Lists
• Kavli Institute for Cosmology Talk Lists
• Priscilla
• The Hoyle Lecture Theatre + Zoom

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