Galactic cirri in deep optical imaging
Abstract
The presence of Galactic cirri in deep optical observations is one of the most challenging problems that the extragalactic community is already facing, and it is expected to be even tougher in the near future with the increasing depth of optical surveys. To address this problem, we have performed a photometric characterization of Galactic cirri in the IAC Stripe82 Legacy Survey using g, r, i and z SDSS bands. Through comprehensive image processing techniques we show that, in most cases, the colors of the cirri differ significantly from the colors of extragalactic sources. This could be a promising way to discern extragalactic features from dust of the Milky-Way. We suggest that the use of multi-band and ultra-deep optical photometry produced by the Large Synoptic Survey Telescope will be very efficient in detecting the Galactic dust with a higher spatial resolution than those provided by far infrared observations.
Cite
@article{arxiv.2012.01465,
title = {Galactic cirri in deep optical imaging},
author = {Javier Román and Ignacio Trujillo and Mireia Montes},
journal= {arXiv preprint arXiv:2012.01465},
year = {2020}
}
Comments
Contributed talk at IAU Symposium 355: The Realm of the Low Surface Brightness Universe. Based in the work by Rom\'an et al. 2020 at https://www.aanda.org/articles/aa/abs/2020/12/aa36111-19/aa36111-19.html. arXiv admin note: text overlap with arXiv:1907.00978