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MOSAIX: a tool to built large mosaics from GALEX images

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Abstract

Large sky surveys are providing a huge amount of information for studies of the interstellar medium, the galactic structure or the cosmic web. Setting into a common frame information coming from different wavelengths, over large fields of view, is needed for this kind of research. GALEX is the only nearly all-sky survey at ultraviolet wavelengths and contains fundamental information for all types of studies. GALEX field of view is circular embedded in a squared matrix of 3840×3840 pixels. This fact makes it hard to get GALEX images properly overlapped with the existing astronomical tools such as Aladin or Montage. We developed our own software for this purpose. In this article, we describe this software and makes it available to the community.

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Notes

  1. Visit http://montage.ipac.caltech.edu for more details.

  2. Visit the general FAQ of GR6 in galex.stsci.edu for a complete list of products.

  3. The difference in pixel sizes between the center and the edge of the image is ∼0.2 mas.

  4. The mfits library written by Dr. Jason Fiege (fiege@physics.umanitoba.ca) at University of Manitoba is available for free. Some modifications were included in the scripts here developed.

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Acknowledgements

Thanks to Dr. Jason Dieter Fiege,Footnote 4 writing resulting matrix in a FITS file is easy. With his mfits library we can fit coordinates and other header settings. We would like to thank the anonymous referee for many useful comments that improved this paper. We acknowledge financial support from Ministerio de Economía y Competitividad of Spain through grant AYA2011-29754-C03-01

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  1. AEGORA Research Group, Fac. de CC Matemáticas, Universidad Complutense de Madrid, 28040, Madrid, Spain

    Marcelo Armengot, Nestor Sánchez, Javier López-Santiago & Ana Inés Gómez de Castro

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  1. Marcelo Armengot
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  2. Nestor Sánchez
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  3. Javier López-Santiago
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  4. Ana Inés Gómez de Castro
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Correspondence to Marcelo Armengot.

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Armengot, M., Sánchez, N., López-Santiago, J. et al. MOSAIX: a tool to built large mosaics from GALEX images. Astrophys Space Sci 354, 113–119 (2014). https://doi.org/10.1007/s10509-014-1997-5

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  • DOI: https://doi.org/10.1007/s10509-014-1997-5

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