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Toward 3D Spectra of Galaxies: Extinction from Inclination-dependent Composites

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If you have a question about this talk, please contact Dr Jonathan Gair .

Galaxies are oriented at various viewing angles and located at different distances from us, large samples of fiber-fed spectra from sky surveys therefore contain spatial information about the galaxies. Careful sample selection in avoiding biases should allow us to re-construct statistically galaxy spectra in 3D. Here I present the inclination dependency in composite spectra of star-forming disk galaxies from the Sloan Digital Sky Survey. I discuss what we learnt about extinction in the galaxies.

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

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Meeting room 4, Centre for Mathematical Sciences Biffen Lecture Theatre, Department of Genetics, Downing Site Centre for Mathematical Sciences MR12, CMS

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