???????? SCORPIO. ?????? III. ?????????????: ?????? ? ???? ?????? ???????. - PowerPoint PPT Presentation

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???????? SCORPIO. ?????? III. ?????????????: ?????? ? ???? ?????? ???????.

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Title: 1 Author: Anatoly V. Zasov Last modified by: Dodonov Created Date: 4/16/2003 5:39:40 AM Document presentation format: Company – PowerPoint PPT presentation

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Title: ???????? SCORPIO. ?????? III. ?????????????: ?????? ? ???? ?????? ???????.


1
???????? SCORPIO. ?????? III.?????????????
?????? ? ???? ?????? ???????.
  • ??????? ?.?.
  • ??????????? ??????????????? ???????????? ???

2
??????? ????????? ? ????????? ?????? ????????????
????????
????
f2
fT
DT
???
f1
D1
D2
??????
??????????
  • ????????? ?????? ??? - ?????????
  • ????????????? ??????????
  • ???????? ?????????? ????????? ????? ????????

3
???-?????????
???-??????? ??????????? ? ??????????? ?
??????????? ????????????? ?????????? ??? ???
4
?????? ?????????? ??? (EEV 42-40)
Binning 2?2 ??? ??????????? (map) 1x2 ???
???????? (obj, neon, flat) ??????????
????????????? ????? ?????????
????????????? ????? ???? 0.36/px ??????????
???? ??? ?????????? ? seeing 1
???????? ?????????? ??? ???????????? ???????????
??? ????? ?????????? ??? ??????????
SLOW 1.8 ? 180 ? obj (??? ???????)
NORM 2.5 e 85 ? obj (??????)
FAST 4 e 30 ? Neon, flat, sunsky, ????? ??????
Gain (??????? ?????????????? ? ??????? ???)
High 0.5 e/ADU ??????????? ?????????? obj
Low 2.0 e/ADU Neon, flat, sunsky, ?????
??????
5
????????????? ?????????? ??? ????????????
??????????? ?? SCORPIO
  • BIAS ????? ???? ????????
  • DARK ???????? ??? (????? ????????????)
  • NEON ?????????? ????? ???? ????
  • FLAT ???????????? ??????? ???? (????
    ?????????????? ????????????????, ???????? ?
    ????????????? ????, ??????)
  • ????????? ??????????????????????, ??????? ???
    ?????-??????????, ????????? ??????? ? ?.?.

6
BIAS (??? ????????, ??????????? ????)
???? ? ??????? ??????????? ?????????? ???????
?? ???? ????? ?????????? ???
? ?????????? ?????? ?????? EEV 42-40 ??????? bias
?????????? 98-100 counts. ???? ?? ?????? ???????
????????? ?????????? ????? 1 e (2ADU, gainhigh)
?????? ???-?? ?? ???. ?? ???? ? ???? ???????
bias ???????? ?????? ? ???????? 0.5 e
??????? ???? ?? ?????? bias ????? ???? ??????????
?????? ????????? ??????? ?????? bias (superbias,
meanbias)
7
??????????? BIAS
????? ?????????? ????? ?? ?????????? ?
?????????? ?????????????? ???!
N ltbiasgt
1 2.5 e
10 0.79 e
20 0.56 e
30 0.46 e
??????????? ??????????? ??? ?? ???? ???? ?
????????? ???? ? ???????? VPHG2300 ?? 20 ?????
(?????? ? ????? ??????????) 3-4?
8
OVERSCAN
????? ? bin 1x2 ???????? ???????
2048x1024 ?????? ?????? 2068?1046
? ????? ??? OVERSCANBIAS, ?? ? ??????? ??????
???????? ??? ???? ??????????? ?????????!
????????? ?????? ??? ???????? ?????? bias ??
????, ?? ?????? superbias ????? ???????? ??
?????? ?????? ??????? overscsan. ?? ????? ????
?????????? ???? ??????? ????? ???????? ?
superbias ? ??????? overscan (SignalOver1)-(Mea
nBiasOver2)(Signal-Meanbias)(Over1-Over2)
9
???????? ?????? BIAS ? ??????? ????
1e
10
???????? ??? DARK
?? 20 ????? ? ????? ??? EEV 42-40 ???????? ???
????? 0.6 e (1 ADU, gainhigh), ??? ?
??????????? ?????????? ?????????????, ?
?????????? ??????? ???????? ????? ????. ?.?. ?
??????????? ?????????? DARK ?? ?????????. ??,
???? ?????????? ?????? ? ?????? ??? (???????? ?
Zeiss-1000) ???? ????????? ? ???????? ??
?????????? ????? DARK (c ??? ?? ???????????).
11
?????????? ????? ???? ????
???????? ???????? ???????????? ????? ? He-Ne-Ar
??????????? ?????? ????? ?? ?????? ???? ?????
5000?, ??????? ????? ?????? ????????? ?? ????????
?????????? (?? ??????????????? Texp ?
??????????? ????????????)
12
??????????? ?????????????? ?????????
??? ?? ????? ??????, ??? ?????? ?????????????
??????? ?????!
??????????? ?????????????? ????????? ?? ???????
????????????? ?????
??? ??????????? ???????? ????? ?????????? ?????
(?? ??????? ?? FLAT ? ?????????? ? ????? ????
????). ?? ???????? ? ?????? ????????, ?
??????????? ?? ????, ??? ???????
?????????????????? ????????? ????????.
13
????????????? ???????????
????? ????? F(x,y)
???? ????????? ????????? ?????????? ?????????, ?
????? ?????????????? ?????????? ??????????
?????????? ????????? ???????? ?????, ?? ? ??????
????????????? ?? SCOPRPIO ?? ?????, ? ?????
??????? ? ?? ????? ?????????? ??????????? ??????
??????.
???????? ????? ???? ???? ?? ?????? ???????
??????? ????
14
???????? ?????? ?????????? (????????????)
???????? ??????
?????, ????? ???? ?????????? ????? ????? ??
?????????????? ????????? ??? ?????? ? ????
?????????? ????? ????? ?? ????????? (F/4).
??????? ???????, ????????? ????????? ?????? ???
??????? ? ?????????? ?????? ?????????. ??
SCORPIO ????? ?????? ????????? (?????????????
????? ?????? ?????????). ?????? ???????
????????? ??-?? ????????? ????????????? ??
????? 5-10 ??/? (???????, ???? ?? ???????
??????????)
15
??????? ???? FLAT
? ??????? ?? ???????????????? FLAT, ?????
??????? ?????????????? ???????????????? ? ?????
??????? ????????? (?????).
?????? ?????????? ????????????????
?????????? ?? ?????? ????? ?????????
- ???? ?????? ???
- ???? ?? ????
- ????? ????? ????
??????? ???????
16
???????? ??????? (?????)
?????? ??? c ???????? ????????? ???????
????????? ?????????????, ?? ????????????? ? ????
??????? (fringes) ? ??????? ??????? ???????
??? ?????????????????? ????? ??????? ??
????????????? ????????????? ??????? ?????????
?????, ?.?. ?????? ??? ???????, ????? ???? ? FLAT
??? ???? ???????????? ??????????, ??? ?????
????????? ?????? ??????????
?????????????????? ????????? ? ?????? ???????
?? ???????
????? ??????? ?? FLAT
VPHG550G
17
?????? ?? ???? ?????? ?? FLAT?
VPHG 1200G
?????? ????? ?????????
??? ?????????? ????
  • ????????? (??? ??????????????) ????? ????????? ?
    ??????????????? ??????? (???????-?? ???!)
  • ???????????? ?????????? ????????????
    ????????????????
  • ????????? ????????? ???????? ??????????? ?????
    ????

????? ???????????? ?????????? ??????????? ????
(sunsky) ???????? ??????? ? ????? ???????
???????, ?? ????? ???? ??????? ?????????????
??????
18
????? ?????????? ? ??????? ????
BIAS (1x2, 2x2,..)
Slitpos
????????? ??? (? ????? ???? ??????????)
MAP
NEON
OBJ
OBJ
NEON
????/????? ?????? ? ???????? ??????? ????????,
?? ????, ???????-????????? ???????. ??????????
(??? ??????? NEON) ????? ????????????
???????????? ????????? ???????? ????????????!
FLAT
FLAT
BIAS (1x2, 2x2,..)
19
??????
  1. ????????? ????????? ????????? (z)
  2. ????????? ????????? ??????????? ????? (Preal)

y
x
????????? ???????? ????? ???????????? ??
?????-?????????? ???????? ?????? ??????? ????
(x) ? ??????? ??????? (y) ??????????? ????????
???????? ????? ????????? ?? ??????? ?????????
(????????? ????????? ??????????? ?j ???????
??????????!).
?????? ???????? ???????? ??-?? ?????? (?? 12
?????? ???????????? ??????????) c EEV42-40 0-1.5
px (? ??????? 0.50.1 px) ?? 10 ????????? z.
20
?????? ??????????? ?????????
????????? ?????????? ?????????? ?????? ???, ???
?? ??????? ??? ?? ?????? 1-2 px, ?? ??? ?? ??????
???????! ????????? ??????????? ????????? ??
?????????????? ???????
? ?????? ??????? ?? ?????? ???????????
??????????? ????????? ????? ?????????? ??
???????? ?????? ????? (? ????????? ?? ??????
????? ????)
21
????????? ???? ??????????? ???????
????????????? ??????? ???? ????????? (?????? 1-2
???????).
22
????????? ???? ?????????????? ???????
?????? V20mag ??? seeing 1.5 ? ?????? ???? ?
??? ?? ????????
??? ?????? ???????? ??????????????? ??? ???
????????? ???? ???? ??????????? ?????
????????????, ?????? ?????????? ??? ?? ??????????
???????!
23
?????? ????? ????.
????????? ???????? ??????? ????
????????? ?????????? ???????
- obj 1
- obj 2
  • ??????????? ????? ?????????? ??????
  • ?? ???????? ???????????? ????????????? ?????
    ???? ????? ???????? ?????????? (5-10 ???)
  • ???????? ? ???????????? ?????????

24
?????? ????? ???? ?????? ?? ???????????
V723 Cas (VPHG1200G)
????????? ???????? ???? ????? ????
???????? ??????? ????? ???? ?????????? ?????????
???????????? ????????, ???????? ???????? ???????
???????????? ?????? ???? (?? 0.5), ??? ????????
? ???????? ?????? ????? ?? ??????? ?? ?????????
??????????. ?? ????? ?????????? ???????? ???
??????????? ?????????????? ???????? ?? ??????
???? ?????? 6500Å (?.?. ? ??????? ????????? ??
???????) .
25
???????? ??????????? ????? ??????????.
?????? ?????????? ?????? ?????? ?????????? ????
???? ??????? ?????? ?? ???????, ?????? ?? ???
?? ???????? ?????????? ? ?????? ?? ???.
26
??????????
???????? ????????????? ??????????????? ?????????
?? ?????? ???????????? ????????? ?????????
?????????? (?????????? ? ??? ??????????, ?????? ?
?.?.). ?????? ?? ??? ???????? ????? ?????? ??
????? ???????? ??????. ?? ???????? ??
???????????!
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