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| Paper: |
The MCELS Data Reduction Pipeline and Its Application to PNe Searches in the LMC |
| Volume: |
491, Fifty Years of Wide Field Studies in the Southern Hemisphere: Resolved Stellar Populations in the Galactic Bulge and the Magellanic Clouds |
| Page: |
366 |
| Authors: |
Paredes, L.; Points, S. D.; Smith, R. C.; Rest, A.; Damke, G.; Zenteno, A.; MCELS Team |
| Abstract: |
The Magellanic Cloud Emission-Line Survey (MCELS) obtained observations
toward the Large and Small Magellanic Clouds (LMC and SMC, respectively)
over six years using the UM/CTIO Curtis Schmidt 0.61m telescope to produce
deep images in [O III], H-alpha, and [S II] emission-lines, in addition to
adjacent green and red continuum filters. This survey covered the central
8°x8° of the LMC and the central 3.5°x4.5°
of the SMC and encompasses most of the gaseous extent of each galaxy with an
angular resolution of 5 arcsec or better, allowing us to identify and study
interstellar structures on ∼1-1000 pc physical scales. We have modified
the SuperMACHO/Essence-w pipeline, developed for Blanco 4m Mosaic II data, to
reduce MCELS data in a uniform manner. In addition to basic reductions (e.g.,
bias-subtraction, flat-fielding, etc), this pipeline uses spatially-varying
convolution kernels to match the PSFs of the narrow-band and broad-band
images and produce continuum-subtracted images for the narrow-band filters.
We use flux measurements of previously identified planetary nebulae (PNe)
in the LMC, e.g. Reid & Parker (2010), and photometry obtained by our pipeline to
create color-magnitude and color-color diagrams in the MCELS filters to
search for new PNe candidates in the LMC. |
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