Dataset for "The mid-infrared Leavitt Law for Classical Cepheids in the Magellanic Clouds"
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).
Cite this dataset as:
Chown, A.,
Scowcroft, V.,
Wuyts, S.,
2020.
Dataset for "The mid-infrared Leavitt Law for Classical Cepheids in the Magellanic Clouds".
Bath: University of Bath Research Data Archive.
Available from: https://doi.org/10.15125/BATH-00915.
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Mid-infrared catalogue of Cepheids in the Magellanic Clouds from Chown et al. (2020)
This dataset is presented in the paper, "The mid-infrared Leavitt Law for Classical Cepheids in the Magellanic Clouds", and used in a follow-up paper to explore the 3D structure of the Magellanic Clouds. The file is under embargo until the follow-up paper has been submitted to the journal to be considered for publication. After this, the file will become publicly available.
Creators
Abigail Chown
University of Bath
Victoria Scowcroft
University of Bath
Stijn Wuyts
University of Bath
Contributors
University of Bath
Rights Holder
Coverage
Temporal coverage:
From 15 July 2005 to 1 January 2012
Documentation
Data collection method:
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.
Data processing and preparation activities:
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.
Technical details and requirements:
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.
Additional information:
Each row in the dataset contains all our data for a specific Cepheid, as outlined in the dataset abstract.
Methodology link:
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.
Funders
University of Bath
https://doi.org/10.13039/501100000835
Publication details
Publication date: 27 October 2020
by: University of Bath
Version: 1
DOI: https://doi.org/10.15125/BATH-00915
URL for this record: https://researchdata.bath.ac.uk/id/eprint/915
Related papers and books
Chown, A. H., Scowcroft, V., and Wuyts, S., 2020. The mid-infrared Leavitt law for classical Cepheids in the Magellanic Clouds. Monthly Notices of the Royal Astronomical Society, 500(1), 817-837. Available from: https://doi.org/10.1093/mnras/staa3186.
Related theses
Chown, A., 2022. The three-dimensional structure of the Magellanic Clouds as traced by Classical Cepheids: (Alternative Format Thesis). Thesis (PhD). University of Bath. Available from: https://researchportal.bath.ac.uk/en/studentTheses/the-three-dimensional-structure-of-the-magellanic-clouds-as-trace.
Related datasets and code
Optical Gravitational Lensing Experiment, n.d. OGLE Collection of Variable Stars. Astronomical Observatory of the University of Warsaw. Available from: https://ogledb.astrouw.edu.pl/~ogle/OCVS/.
Contact information
Please contact the Research Data Service in the first instance for all matters concerning this item.
Contact person: Abigail Chown
Faculty of Science
Physics
