Документ взят из кэша поисковой машины. Адрес оригинального документа : http://curl.sai.msu.ru/mass/download/doc/shtrel_control.pdf Дата изменения: Sun Jan 3 19:31:39 2010 Дата индексирования: Mon Oct 1 20:16:20 2012 Кодировка: Поисковые слова: clouds

DIMM
. , .
3 2010 .

1



() (DIMM) [1]. , , . [2] , . , DIMM . , DIMM . , , . 5 ­ 10 . , . , . , DIMM, , . . . MASS/DIMM , 2007 1 . 100 000 , 2007 ­ 2009 . - . DIMM 1

http://curl.sai.msu.ru/mass/download/doc/res2009rus.pdf

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dimm2 3 , ,

2

dimm

[3] , Ft . , Ic : Ic = Ft D 2 2 , 42 f 2 (1 )

D DIMM , f "+DIMM" . /f M : Ic = Ft D2 42 M 206256
2

(2 )

, (2) . , . , (2) D f , , Ic Ft . ( ) . , dimm . . , , 10%. , . ICX424AL ( EC650 Prosilica) , B0V K5III 470 600 , 1.6 . ef f E () Q() : 1
2 3

2 ef f

=

1 E ()Q() 2 d E ()Q()d

(3 )

http://dragon/mass/download/doc/dimm_soft_description.pdf http://curl.sai.msu.ru/mass/download/doc/infrasoft.pdf

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3

dimm

DIMM . , , 17 2008 . 2 . , 4 . , . , ( Aur, Lir, Boo) , (2) 20 ­ 40%. , , EC650, , , . 6 2009 3 , 9 2.5 . 29 , 2 12 , 2 . Ї , I = 2 ), r , Ft /( r . Ї I , : Ї IR = -240.86 + 1.6174I Ї IL = -304.61 + 1.7604I (4 )

, 4100 ADU, . , 17 2008 , . 17 2008 4 2009 , 35 ­ 40 ADU. .

4



1 . . 1 . , , (S 0.2). Sm = (SL + SR )/2. Sm 0.41. 13% 0.3. . . . , Sm > 0.41 0.84 0.96 . Sm < 0.41 1.11 . Sm < 0.3 , 0.92 . 3


1.0

1.0

0.8

0.8

F(S)

0.4

F()
0.2 0.3 0.4 0.5 0.6

0.6

0.6

0.4

0.2

0.2

0.0 0.1

0.0 0.0 0.5 1.0

S



1.5

2.0

2.5

. 1: : ( ) (-). Sm . : . Sm > 0.4125, Sm < 0.4125, - Sm > 0.3 , , , 10 , DIMM. [4] DIMM, TMT.

5

DIMM

() DIMM , - . , [4], , , . , 2 , a 2 o :
2 2 2 = o + a ,

(5 )

S So Sa : S = So Sa (6 ) , DIMM, 4


Sa . , - [5]:
2 2 a = 3 = 0.134

D r0

5/3

,

(7 )

D r0 , [4], , , , . , - () :
f
c

f

c

Sa =

0

Ta (f ) df

T0 (f ) df
0

(8 )

T0 , Ta , fc = D/. , : 2 (9 ) arccos z - z 1 - z 2 . T0 (z ) =
1

z = f /fc :

4 (1 0 ) 3 0 Ta [6]. , ( ): D 5/3 5/3 L z , (1 1 ) Ta E (z ) = T0 (z ) exp -3.44 r0 T0 (z ) = D r0
5/3

, , , DIMM: T
SE a

(z ) = T0 (z ) exp -3.44

z

5/3

1 - (z )

1/3

(1 2 )

, s = (D/r0 )5/3 . (8) Sa (11) (12) . 2 . r0 > 0.25D s Sa = e-
0.12125 s+0.00287 s
2

.

(1 3 )

, D DIMM. s DIMM s= D r0
5/3

= 5

D

2

·

l2,t , Kl,t

(1 4 )


1.0
S
a

0.9 0.8 0.7

LE MTF SE MTF

S

a

0.6 0.5 0.4 0.3 0.2 0 1 2 3 4 5 6
5/3

7

8

9

10

s = (D/r0)

.

2: Sa . - , (11). - , (12). (12) (13)

l2,t , Kl,t , l2,t . , (3).

6

DIMM

. 2 , , , ( = 1 , D/r0 1) , 10%. , 30% = 2 . , , , 4. . 3, , . Sm 0.47, 0.46 0.48 . , . S < 0.3 3% 7% . 2009 - , , . 4. , 6


1.0

1.0

0.8

0.8

F(S)

0.4

F()
0.2 0.3 0.4 0.5 0.6 0.7 0.8

0.6

0.6

0.4

0.2

0.2

0.0 0.1

0.0 0.0 0.5 1.0

S



1.5

2.0

2.5

. 3: : ( ) (-) . Sm , min(SL , SR ). : . Smin > 0.45, Smin < 0.45, - DIMM, 7 - 8 . 12 - 15 0.2 - 0.25 . Sa . . 3, , , . , Smin > 0.45 ( ) Smin < 0.45 , . 0.95 0.99 0.97 . . 1 . , ( ) 0.05 , . ( ) - 0.01 . , , . , (6 12) . , . , Smin > 0.3 7


l /
0.8 0.6

S

o

t

1.0

0.4 0.2 Dec Nov Oct Sep Aug Jul Jun May Apr Mar Feb Jan Dec Nov Oct Sep Aug Jul Jun May Apr Mar Feb Jan Dec Nov Oct Sep 2008 2009

. 4: : . : ( ) ( ) DIMM l /t , . 4 . , , 1, .

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, 5 ­ 10 . ( ) Y DIMM ( ) X. 1 ­ 2 . 0, , , - . , 3 / (. 5 ). R = (X 2 + Y 2 )1/2 Y. , , R > 3 15%, R > 6.4 3% . , 2.3 /

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1: 2007 ­ 2009 .
Smin Smin Smin Smin Smin > > > > < 0.30 0.35 0.40 0.45 0.45 25% 0.751 0.747 0.746 0.746 0.739 0.765 50% 0.969 0.965 0.961 0.959 0.950 0.989 75% 1.292 1.296 1.280 1.265 1.243 1.347

10
X (azimuth) Y (altitude)

0.60
0.7 < 0.9 < 1.1 < 1.3 < All data < < < < 0.9" 1.1" 1.3" 1.5"

8

0.55

X-, Y-ampl, arcs

0.50 6 So 4 0.40 2 0 1 2 3 4
wind

0.45

0.35

5

6

7

0.30 0

2

V

, m/c

4 6 Amplitude R,"

8

. 5: : ( ) ( ) . : ( , ) 9 /. , R 5 4 1 , . , . . 5 . , 4 . R < 3 . , 0.35 R 8 , , 9


. , , DIMM, . ADXL203 Analog Device 1 ( 1 /2 ). DIMM, 1 - 2 .

8



MASS/DIMM 2007 2009 , , , , . , . , , , , . - . , .


[1] Sarazin M., Roddier F., Astron. Astrophys. 227, 294, 1990 [2] Tokovinin A., Kornilov V., MNRAS, 381, 1179, 2007. [3] Tokovinin A., PASP, V.114, 1156, 2002 [4] Wang L., Schock M., Chanan G., Skidmore W., Blum R., Bustos E., Els S., Riddle R., Ё Seguel J., Travouillon T., Vasquez J., Walker D., Gillett P., Applied Optics, V. 46, No. 25, p.6460, 2007 [5] Fried D.L., JOSA, v.55, no.11, pp. 1427-1435, 1965 [6] Fried D.L., JOSA, v.56, no.10, pp. 1372-1379, 1966

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