ALFALFA and MaNGA

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ALFALFA & MaNGA match

Here, I used the v1_2_0 version catalog of MaNGA "MaNGA_targets_extNSA_tiled.fits" and [math]\alpha[/math]40 of ALFALFA.[1] I also supplemented the SDSS information through PhotoObjID given by ALFALFA [math]\alpha[/math]40 catalog

To match these two catalogs, I chosed "RA"&"DEC" in MaNGA catalog, and "ra"&"dec" given by SDSS which had been supplemented ALFALFA catalog. I did not use "RAdeg_OC" and "DECdeg_OC" in ALFALFA catalog because they are different with the SDSS ra & dec for the same PhotoObjID object. It could because that SDSS released catalog has changed the galaxy properties a little bit after DR7, ALFALFA might used the old value (DR7).

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