Multi-Resolution HEALPix Maps for Multi-Wavelength and Multi-Messenger Astronomy
| Autor: | Martinez-Castellanos, I., Singer, Leo P., Burns, E., Tak, D., Joens, Alyson, Racusin, Judith L., Perkins, Jeremy S. |
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| Rok vydání: | 2021 |
| Předmět: | |
| Druh dokumentu: | Working Paper |
| DOI: | 10.3847/1538-3881/ac6260 |
| Popis: | HEALPix -- the Hierarchical Equal Area isoLatitude Pixelization -- has become a standard in high-energy and gravitational wave astronomy. Originally developed to improve the efficiency of all-sky Fourier analyses, it is now also utilized to share sky localization information. When used for this purpose the need for a homogeneous all-sky grid represents a limitation that hinders a broader community adoption. This work presents mhealpy, a Python library able to create, handle and analyze multi-resolution maps, a solution to this problem. It supports efficient pixel querying, arithmetic operations between maps, adaptive mesh refinement, plotting and serialization into FITS -- Flexible Image Transport System -- files. This HEALPix extension makes it suitable to represent highly resolved regions, resulting in a convenient common format to share spatial information for joint multi-wavelength and multi-messenger analyses. Comment: Submitted to the AAS journals. mhealpy is an open-source project. Documentation is available at https://mhealpy.readthedocs.io |
| Databáze: | arXiv |
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