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IRSF :InfraRed Survey Facility (IRSF) is located at Sutherland, South Africa and the survey project started since Nov. 2000 in the near infrared (J, H, Ks) bands.
IRSF/Sirius :SIRIUS is a near infrared simultaneous three-band camera, and it is now mounted on the IRSF 1.4 m telescope in Sutherland, South Africa. It was developed at Nagoya Univ. and NAOJ.

IRSF/Sirius.J12449.5312476.9212409.1411453.0513480.661491.221544.952.99e-10IRSFSiriusIRSF Sirius J filter
IRSF/Sirius.H16271.6616339.7516183.4714545.0218060.182795.801030.881.17e-10IRSFSiriusIRSF Sirius H filter
IRSF/Sirius.Ks21419.8421482.5221324.2819508.7523380.632980.44665.554.35e-11IRSFSiriusIRSF Sirius Ks filter
X
IRSF/Sirius.Ks
Filter Description

Filter ID (?) :IRSF/Sirius.Ks
Description (?) :IRSF Sirius Ks filter
Phot.System (?) :Sirius
Detector Type (?) :Photon counter
Band Name (?) :J
Obs. Facility (?) :IRSF
Instrument (?) :Sirius
Comments (?) :------

 
Mathematical properties

Property Calculated Specified Unit
λref (?) : 21419.84 ------- (Angstrom)
λmean (?) : 21482.52 ------- (Angstrom)
λcen (?) : 21447.22 ------- (Angstrom)
λeff (?) : 21324.28 ------- (Angstrom)
λpeak (?) : 22689.83 ------- (Angstrom)
λpivot (?) : 21419.84 ------- (Angstrom)
λphot (?) : 21366.10 ------- (Angstrom)
λmin (?) : 19508.75 ------- (Angstrom)
λmax (?) : 23380.63 ------- (Angstrom)
Weff (?) : 2980.44 ------- (Angstrom)
FWHM (?) : 3211.58 ------- (Angstrom)
Af/AV (?) : 0.126 ------- ()
Fsun (?) : 9.10 ------- (erg/cm2/s/A)

Transmission

Data file: ascii, VOTable

Reference for filter response: SIRIUS filters

Transmission components: Filter

   
Calibration properties

Vega System
PropertySpecified Calculated Unit
Zero Point (?) : ------- 4.34878e-11(erg/cm2/s/A)
  ------- 665.55(Jy)
ZP Type (?) : Pogson
PhotCal ID (?) : IRSF/Sirius.Ks/Vega
 

AB System
PropertySpecified Calculated Unit
Zero Point (?) : ------- 2.37255e-10(erg/cm2/s/A)
  ------- 3631.00(Jy)
ZP Type (?) : Pogson
PhotCal ID (?) : IRSF/Sirius.Ks/AB
 

ST System
PropertySpecified Calculated Unit
Zero Point (?) : ------- 3.631e-9(erg/cm2/s/A)
  ------- 55569.68(Jy)
ZP Type (?) : Pogson
PhotCal ID (?) : IRSF/Sirius.Ks/ST
 


Filter added: 2021-05-05 10:00:51
Last update: 2021-07-27 19:42:01
 

Filter Plots

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If your research benefits from the use of the SVO Filter Profile Service, we would appreciate if you could include the following acknowledgement in your publication:

This research has made use of the Spanish Virtual Observatory (https://svo.cab.inta-csic.es) project funded by MCIN/AEI/10.13039/501100011033/ through grant PID2020-112949GB-I00

and we would appreciate if you could include the following references in your publication: