“ALFALFA and MaNGA”的版本间差异
跳到导航
跳到搜索
无编辑摘要 |
|||
| （未显示同一用户的6个中间版本） | |||
| 第1行： | 第1行： | ||
== 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.[http://arecibo.tc.cornell.edu/hiarchive/alfalfa/] |
Here, I used the v1_2_0 version catalog of MaNGA "MaNGA_targets_extNSA_tiled.fits" and <math>\alpha</math>40 of ALFALFA.[http://arecibo.tc.cornell.edu/hiarchive/alfalfa/] |
||
I also supplemented the SDSS information to ALFALFA <math>\alpha</math>40 catalog through PhotoObjID. |
I also supplemented the SDSS information to ALFALFA <math>\alpha</math>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 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 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). |
||
*Download the combined catalogs: [[File:manga_alfalfa_sdssdr7.txt]] |
|||
*I got 2300 matched sources within 3", the spatial distribution is as follows. |
*I got 2300 matched sources within 3", the spatial distribution is as follows. |
||
[[File:spacedistrib_magalf. |
[[File:spacedistrib_magalf.jpg]] |
||
*The stellar mass distribution |
*The stellar mass distribution |
||
[[File: |
[[File:Msdistrib_magalf.jpg]] |
||
*The redshift distribtuion |
*The redshift distribtuion |
||
[[File:zdistrib_magalf. |
[[File:zdistrib_magalf.jpg]] |
||
*The r-band petromag r90/r50 distribution |
*The r-band petromag r90/r50 distribution |
||
[[File:r90r50distrib_magalf. |
[[File:r90r50distrib_magalf.jpg]] |
||
2014年12月18日 (四) 09:13的最新版本
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.txt
- 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
