“ALFALFA and MaNGA”的版本间差异
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To match these two catalogs, I chosed "RA"&"DEC" in MaNGA catalog, and "ra"&"dec" given by SDSS which had been supplemented to ALFALFA catalog. I did not use "RAdeg_OC" and "DECdeg_OC" in the ALFALFA catalog because they are different with the SDSS ra & dec for the same PhotoObjID object. It could because that the SDSS catalog has changed the galaxy properties a little bit after DR7, ALFALFA might used the old value (DR7). |
To match these two catalogs, I chosed "RA"&"DEC" in MaNGA catalog, and "ra"&"dec" given by SDSS which had been supplemented to ALFALFA catalog. I did not use "RAdeg_OC" and "DECdeg_OC" in the ALFALFA catalog because they are different with the SDSS ra & dec for the same PhotoObjID object. It could because that the SDSS catalog has changed the galaxy properties a little bit after DR7, ALFALFA might used the old value (DR7). |
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*Download the combined catalogs: [[File: |
*Download the combined catalogs: [[File:manga_alfalfa_sdssdr7.fits]] |
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2014年12月18日 (四) 09:12的版本
Here, I used the v1_2_0 version catalog of MaNGA "MaNGA_targets_extNSA_tiled.fits" and 40 of ALFALFA.[1] I also supplemented the SDSS information to ALFALFA 40 catalog through PhotoObjID.
To match these two catalogs, I chosed "RA"&"DEC" in MaNGA catalog, and "ra"&"dec" given by SDSS which had been supplemented to ALFALFA catalog. I did not use "RAdeg_OC" and "DECdeg_OC" in the ALFALFA catalog because they are different with the SDSS ra & dec for the same PhotoObjID object. It could because that the SDSS catalog has changed the galaxy properties a little bit after DR7, ALFALFA might used the old value (DR7).
- Download the combined catalogs: 文件:Manga alfalfa sdssdr7.fits
- I got 2300 matched sources within 3", the spatial distribution is as follows.
- The stellar mass distribution
- The redshift distribtuion
- The r-band petromag r90/r50 distribution
