Table 3

Required Capabilities for Imaging Surveys on 2.5-4 Meter Telescopes


Survey Survey Title Area Bands Comments Nights Tel #1 [2.5m diam/ 0.5 arcsec FWHM/ 3% emissivity] Nights Tel #2 [2.5m diam/ 1.0 arcsec FWHM/ 10% emissivity] Nights Tel #3 [4.0m diam/ 0.5 arcsec FWHM/ 3% emissivity] Nights Tel #4 [4.0m diam/ 1.0 arcsec FWHM/ 10% emissivity] other
1/a 1000 KBOs 1500 R plus 20 nts/yr to not lose 110 248 77 131  
1/a largest KBOs ### R do twice to discover         11 (1.0 m)
2/a M/L in Pleiades 10 JK   1 1 1 1  
2/b Cool WDs in disk 20 BVIMgHCaH   4.7 11.1 3 5.4  
2/c open clusters (Hyades) 50 RIZ   3.1 3.6 3 3.2  
2/c open clusters (Hyades) 50 Hshort,Hlong   21.2 21.2 12.6 12.6  
2/c open clusters (young) 50 RIZ   7.5 19.8 4.7 9.5  
3/a Luminous extragalactic stars 10 BVRI do 10 times for var's 9.6 13.2 8.3 9.7  
4/a protostar candidates 120 JHKL L not included 28.2 30.1 23.2 24  
4/b PMS objects 120 RI   4.7 5 4.6 4.7  
4/b PMS objects 120 JHKL L not included 30.7 31.3 24.2 24.6  
6/a halo star IDs 9 I,M,T1,51   79.3 294 31.5 115.3 13 (6.5 m)
6/b turnoff star IDs 90 BVRI   771 2742 305 1076 120 (6.5 m)
6/c old disk stars 22 u,b,y   44.6 54.2 18.1 22  
7/a 1st tier; largest scale 125 I extended objects 56.1 (see note 1) 56.1 23.3 (see note 1) 23.3  
7/a 2nd tier; deep galaxy search 5 UBRI ext. obj. (time dom by U) 272 (see note 1) 272 106 (see note 1) 106  
7/a 2nd tier; deep galaxy search 5 JHK extended objects see note 2 see note 2 15,748 see note 2  
8/a wide field 10 UBVRI extended objects 33.8 (see note 1) 33.8 13.8 (see note 1) 13.8  
8/a wide field 10 JHK extended objects see note 2 see note 2 4,217 see note 2  
8/a deep 0.5 UBVRI extended objects 24.9 (see note 1) 24.9 9.7 (see note 1) 9.7  
8/a deep 0.5 JHK extended objects see note 2 see note 2 8,394 see note 2  


Posted: 1/29/98
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