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Are Bulges and Disks Real? *** Seminar cancelled ***

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If you have a question about this talk, please contact David Titterington.

Decomposing images of galaxies into separate bulge and disk components has become a minor industry in studying galactic structure, but raises the question of whether such decompositions reflect an astrophysical distinction, or whether they have just become convenient fitting functions. With the advent of large-scale spectroscopic data, such as that offered by the SDSS -IV MaNGA integral-field unit survey of 10,000 nearby galaxies, we can now address this question. I will present the techniques that we have been developing to exploit these observations in novel ways, and the first results that are starting to emerge from this rich data set.

This talk is part of the Cavendish Astrophysics Seminars series.

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