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Last update: 28 Mar 2017
This page is designed by A.V. Moiseev
moisavsao.ru

The SCORPIO-2 project:
Spectral Camera with Optical Reducer for Photometric and Interferometric Observations - 2

Broad-band filters

The broad-band glass filters made in SAO RAS are used for the observation in the Johnson-Cousins (UBVRI) photometric system in the direct images mode.


The glass filters transmission curves are shown by solid line. The measurements were done with the SCORPIO-2/VPHG940@600. The dashed lines indicate the same curves when the CCD EEV 42-40 sensitivity curve was taken into account.

The SDSS (ugriz) glass filters with anti-reflective coating made by Asahi Spectra USA Inc. are also available for direct imaging observations.


The SDSS filters transmission curves are shown by solid line, the manufacturer data. The dashed lines indicate the same curves when the CCD EEV 42-40 sensitivity curve was taken into account.

Intermediate-band filters

The set of passband filters with band width 70-200 A is available for observations in the H-alpha, [SII], [OIII] emission line and in the continuum. The majority of the filters were made by Asahi Spectra USA Inc., the FN674 filter was made by NIIPP (Moscow).


The intermediate-band filters transmission curves.

The main parameters of middle-band filters
name CWL (A) FWHM (A) Tmax(%)Profile
FN501501211987ASC-fileImage
FN608609916691ASC-fileImage
FN641641317991ASC-fileImage
FN6556559 9792ASC-fileImage
FN660660610292ASC-fileImage
FN712713720994ASC-fileImage
FN6746733 6084ASC-fileImage

The set of passband filters with band width ~250 A is available for observations emission lines, continuum and to study spectral energy distribution (SED). These filters were made by Edmund Optics..


The SED filters transmission curves.

The main parameters of middle-band SED filters
name CWL (A) FWHM (A) Tmax(%)Profile
SED400399424993ASC-fileImage
SED425425423897ASC-fileImage
SED450451725695ASC-fileImage
SED475477525193ASC-fileImage
SED500501924688ASC-fileImage
SED525527125187ASC-fileImage
SED575577324992ASC-fileImage
SED600602825399ASC-fileImage
SED625627125095ASC-fileImage
SED650651524996ASC-fileImage
SED675677326298ASC-fileImage
SED700703524297ASC-fileImage
SED725729024993ASC-fileImage
SED750754625192ASC-fileImage
SED775775023995ASC-fileImage
SED800802325891ASC-fileImage
SED825827726289ASC-fileImage
SED850850625192ASC-fileImage
SED875878125294ASC-fileImage
SED900902725590ASC-fileImage
SED925928925289ASC-fileImage
SED975976926087ASC-fileImage

The set of passband filter cut spectral range in observations in IFU mode was made by Asahi Spectra USA Inc..


The IFU filters transmission curves.

The main parameters of the IFU filters
name CWL (A) FWHM (A) Tmax(%)Profile
IFU510509879385ASC-fileImage
IFU610610278988ASC-fileImage
IFU650648275992ASC-fileImage

N.N. Kisilev (MAO, Kiev) kindly provide the set of intermediate-band filters for observations of the emission bands in comets.


The filters transmission curves of the `comets' filters measured with the SCORPIO-2 in the F/4 beam.

The main parameters of `comets' filters (for F/4 beam)
name CWL (A) FWHM (A) Tmax(%)Profile
CN_3980 3982 3613ASC-fileImage
CO+4277 3940ASC-fileImage
Cont_44304429 3661ASC-fileImage
C2_5125*511512379ASC-fileImage
NH2_66306615 3484ASC-fileImage
Cont_68406835 8388ASC-fileImage
* - the surface become degraded

The narrow band filters for observation with scanning FPI

The sets of narrow-band (FWHM=12-25 A) filters are available for observations of galaxies in the [OIII], H-alpha, [NII], [SII] emission limes. You can use this IDL-program to choose the optimal filters for desired systemic velocities.

IFP filters parameters (for F/4 beam)
name CWL (A) FWHM (A) Tmax(%)
IFP502 5010 15 65
IFP508 5075 15 66
IFP513 5123 16 60
IFP514 5138 16 60
IFP516 5153 15 60
IFP517 5168 18 46
IFP519 5183 17 60
AC5038 5028 32 75
AC5065 5055 33 77
AC5110 5100 33 77
AC5176 5166 33 76
AC5211 5201 35 75
AC5241 5231 35 76
#76B 6560 15 71
#77B 6571 14 76
#78B 6580 13 69
#79B 6589 13 71
#80B 6598 14 73
#81B 6608 15 70
AC6700 6690 15 70
AC6715 6705 15 70
AC6730 6720 15 70
AC6745 6735 15 70
AC6760 6750 15 70
AC6775 6765 15 70
AC6790 6780 15 70
AC6790 6780 15 70
AC6836 6829 20 65
AC6852 6845 21 64
IFP657 6570 19 52
IFP659 6581 19 58
IFP661 6604 21 54
IFP663 6627 20 55
IFP665 6641 24 50
IFP667 6661 20 46
IFP670 6695 19 56
IFP671 6711 19 57
IFP673 6727 19 41
IFP674 6741 19 47
IFP676 6755 16 55
IFP677 6771 17 50
IFP679 6782 19 54