“DESI”的版本间差异

2023年7月8日 (六) 04:09的最新版本

https://github.com/EigenHermit/get_stamp_desi_ls/ 在DESI里面切大图的程序，输入RA，DEC和boxsize从DESI的图像数据库里面切出fits file

(i) luminous red galaxies (LRGs) in the redshift range z = 0.3 to z = 1
(ii) emission line galaxies (ELGs) to z = 1.7
(iii) quasars to higher redshifts (2.1 < z < 3.5)
(iv) a magnitude-limited Bright Galaxy Survey out to z~0.6 with a median redshift of z~0.2

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 http://desi.lbl.gov/
+==辅助数据==
+*https://github.com/EigenHermit/get_stamp_desi_ls/ 在DESI里面切大图的程序，输入RA，DEC和boxsize从DESI的图像数据库里面切出fits file
+==图像巡天==
-*previously [[BigBOSS]]
+*  The Beijing-Arizona Sky Survey (BASS)
+* The DECam Legacy Survey (DECaLS)
-==图像==
+* The Mayall z-band Legacy Survey (MzLS)
-* BASS[http://batc.bao.ac.cn/BASS/doku.php] lead by Zhouxu
+* https://www.legacysurvey.org/
-* DECaLS
+* 14000平方度，g,r,z及WISE的四个波段
 ==光谱巡天==
+* * 5000根光纤
-*  5 000 spectra simultaneously
-*  wavelength range 360 to 980 nm *
+*  wavelength range 360 to 980 nm
-* spectral resolution of R = between 2000 and 5 500,
+* spectral resolution of R = between 2000 and 5500
+* 天区覆盖：14000 deg2，总样本 30 million spectroscopic target
-* fi�ve-year survey starting in 2020,
+* 四个子样本
-* measuring redshifts over a solid angle of 14 000 deg2
-* More than 30 million spectroscopic targets will be selected for four different tracer samples
 :* (i) luminous red galaxies (LRGs) in the redshift range z = 0.3 to z = 1
 :* (ii) emission line galaxies (ELGs) to z = 1.7