DOI: 10.15125/bath-00915
title: Dataset for "The mid-infrared Leavitt Law for Classical Cepheids in the Magellanic Clouds"

description: This dataset provides mid-infrared mean magnitudes for Classical Cepheids in the Magellanic Clouds. It consists of data for 2352 Large Magellanic Cloud (LMC) and 2672 Small Magellanic Cloud (SMC) Cepheids. These data were produced using the methods described in the associated paper, "The mid-infrared Leavitt Law for Classical Cepheids in the Magellanic Clouds". The dataset includes the following information for each Cepheid: host galaxy, ID, 3.6µm mean magnitude and associated uncertainty, 4.5µm mean magnitude and associated uncertainty, colour excess E(B-V) and associated uncertainty, a flag to show rejected data, and an alternative ID (if applicable).
description: Mid-infrared images of the Magellanic Clouds were obtained by the Spitzer Space Telescope at 3.6µm and 4.5µm wavelengths. We developed a fully-automated photometry pipeline to process this data and produce mid-infrared light curves for Cepheids in the Magellanic Clouds. A template light curve fitting procedure using Monte Carlo Markov Chain (MCMC) processes was developed to obtain mean magnitudes of these Cepheids with sparse observations.
description: Period values given in the dataset are taken from the following paper: Soszyński, I., Udalski, A., Szymański, M.K., Wyrzykowski, Ł., Ulaczyk, K., Poleski, R., . . . Pawlak, M., 2017. "Concluding Henrietta Leavitt's Work on Classical Cepheids in the Magellanic System and Other Updates of the OGLE Collection of Variable Stars". Acta Astronomica, 67(2), p.103. DOI: https://doi.org/10.32023/0001-5237/67.2.1.
description: These data were obtained through the development of a photometry pipeline using the DAOPHOT/ALLSTAR/ALLFRAME software, provided by Peter Stetson (Stetson 1987; Stetson & Harris 1988; Stetson 1994). MOPEX was also used to created mosaic images from single CBCD images (Makovoz & Khan 2005).

- Makovoz, D. and Khan, I. 2005. "Mosaicking with MOPEX". In: P. Shopbell, M. Britton, and R. Ebert, eds. Astronomical Data Analysis Software and Systems XIV, ASP Conference Series, Vol. 347, 24–27 October 2004, Pasadena, CA. San Francisco, CA: Astronomical Society of the Pacific, p.81.
- Stetson, P.B., 1987. "DAOPHOT - A computer program for crowded-field stellar photometry". Publications of the Astronomical Society of the Pacific, 99, p.191. DOI: https://doi.org/10.1086/131977.
- Stetson, P.B., 1994. "The center of the core-cusp globular cluster M15: CFHT and HST Observations, ALLFRAME reductions". Publications of the Astronomical Society of the Pacific, 106, p.250. DOI: https://doi.org/10.1086/133378.
- Stetson, P.B. and Harris, W.E., 1988. "CCD photometry of the globular cluster M92". The Astronomical Journal, 96, p.909. DOI: https://doi.org/10.1086/114856.
description: Each row in the dataset contains all our data for a specific Cepheid, as outlined in the dataset abstract.
description: Further relevant documentation may be found in the following resources.

   Chown, A. H., Scowcroft, V., and Wuyts, S.,  2020.   The mid-infrared Leavitt Law for Classical Cepheids in the Magellanic Clouds.    arXiv.  Available from: https://doi.org/10.48550/ARXIV.2010.09784.