CLARK, C.J.R., VERSTOCKEN, S., BIANCHI, S., FRITZ, J., VIAENE, S., SMITH, M.W.L., BAES, M., CASASOLA, V., CASSARA, L.P., DAVIES, J.I., DE LOOZE, I., DE VIS, P., EVANS, R., GALAMETZ, M., JONES, A.P., LIANOU, S., MADDEN, S., MOSENKOV, A.V. and XILOURIS, M. (2018). DustPedia: Multiwavelength photometry and imagery of 875 nearby galaxies in 42 ultraviolet-microwave bands. Astronomy & Astrophysics, 609, A37-A37.
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Abstract
Aims. The DustPedia project is capitalising on the legacy of the Herschel Space Observatory, using cutting-edge modelling techniques to study dust in the 875 DustPedia galaxies – representing the vast majority of extended galaxies within 3000 km s-1 that were observed by Herschel. This work requires a database of multiwavelength imagery and photometry that greatly exceeds the scope (in terms of wavelength coverage and number of galaxies) of any previous local-Universe survey. Methods. We constructed a database containing our own custom Herschel reductions, along with standardised archival observations from GALEX, SDSS, DSS, 2MASS, WISE, Spitzer, and Planck. Using these data, we performed consistent aperture-matched photometry, which we combined with external supplementary photometry from IRAS and Planck. Results. We present our multiwavelength imagery and photometry across 42 UV-microwave bands for the 875 DustPedia galaxies. Our aperture-matched photometry, combined with the external supplementary photometry, represents a total of 21 857 photometric measurements. A typical DustPedia galaxy has multiwavelength photometry spanning 25 bands. We also present the Comprehensive & Adaptable Aperture Photometry Routine (CAAPR), the pipeline we developed to carry out our aperture-matched photometry. CAAPR is designed to produce consistent photometry for the enormous range of galaxy and observation types in our data. In particular, CAAPR is able to determine robust cross-compatible uncertainties, thanks to a novel method for reliably extrapolating the aperture noise for observations that cover a very limited amount of background. Our rich database of imagery and photometry is being made available to the community.
Item Type: | Article |
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Uncontrolled Keywords: | 0201 Astronomical And Space Sciences; Astronomy & Astrophysics |
Identification Number: | https://doi.org/10.1051/0004-6361/201731419 |
Page Range: | A37-A37 |
SWORD Depositor: | Symplectic Elements |
Depositing User: | Symplectic Elements |
Date Deposited: | 11 Feb 2019 09:46 |
Last Modified: | 18 Mar 2021 01:23 |
URI: | https://shura.shu.ac.uk/id/eprint/23986 |
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