Type of Submission

Event

Graduation Year

2015

Location

Atrium, Center for Natural Sciences, Illinois Wesleyan University

Start Date

20-4-2013 9:00 AM

End Date

20-4-2013 10:00 AM

Disciplines

Physics

Abstract

The study of very distant “dusty” galaxies whose visible light is obscured by cosmic dust is a developing field in astronomy. To discover such galaxies, images of the sky are made with telescopes sensitive to millimeter-wavelength light. Because these images are inherently low in signal-to-noise, special image processing techniques are needed to reliably identify galaxies in them. Usually, a software “filter” is applied to a sky image in order to better distinguish galaxies from noise. We have developed a novel filter that, in principle, performs better than the standard filter used in the astronomical community. Our study, which involved testing this new filter, is presented here. This is a continuation of an improvement over work previously presented in 2010.

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Physics Commons

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Apr 20th, 9:00 AM Apr 20th, 10:00 AM

Tests of a Novel Technique for Finding Galaxies in Millimeter Wavelength Maps

Atrium, Center for Natural Sciences, Illinois Wesleyan University

The study of very distant “dusty” galaxies whose visible light is obscured by cosmic dust is a developing field in astronomy. To discover such galaxies, images of the sky are made with telescopes sensitive to millimeter-wavelength light. Because these images are inherently low in signal-to-noise, special image processing techniques are needed to reliably identify galaxies in them. Usually, a software “filter” is applied to a sky image in order to better distinguish galaxies from noise. We have developed a novel filter that, in principle, performs better than the standard filter used in the astronomical community. Our study, which involved testing this new filter, is presented here. This is a continuation of an improvement over work previously presented in 2010.

 

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