Filter Profile Service
A repository of Filter information for the VO.
Grant PID2020-112494GBI00 funded by
Astronomy (7905)Planetary science (616)Earth Obs. (2452)

LaSilla :La Silla ESO Observatory
LaSilla/EFOSC :EFOSC2, or the ESO Faint Object Spectrograph and Camera (v.2) to give its full name, is a very versatile instrument for low resolution spectroscopy and
GaiaXPy base XML file. You can download here the GaiaXPy base XML file for the full LaSilla/EFOSC filter set. Please, take a look to the GaiaXPy web page and additional documentation for more information.

LaSilla/EFOSC.ESO6403536.173549.613572.673102.093980.28496.631478.303.54e-9La SillaEFOSCEFOSC ESO#640, Bessell U
LaSilla/EFOSC.ESO6394335.954377.944344.093592.425738.271006.843954.066.31e-9La SillaEFOSCEFOSC ESO#639, Bessell B
Filter Description

Filter ID (?) :LaSilla/EFOSC.ESO639
Description (?) :EFOSC ESO#639, Bessell B
Phot.System (?) :EFOSC
Detector Type (?) :Energy counter
Band Name (?) :B
Obs. Facility (?) :La Silla
Instrument (?) :EFOSC
Comments (?) :------

Mathematical properties

Property Calculated Specified Unit
λref (?) : 4335.95 ------- (Angstrom)
λmean (?) : 4377.94 ------- (Angstrom)
λcen (?) : 4340.26 ------- (Angstrom)
λeff (?) : 4344.09 ------- (Angstrom)
λpeak (?) : 4420.00 ------- (Angstrom)
λpivot (?) : 4335.95 ------- (Angstrom)
λphot (?) : 4368.55 ------- (Angstrom)
λmin (?) : 3592.42 ------- (Angstrom)
λmax (?) : 5738.27 ------- (Angstrom)
Weff (?) : 1006.84 ------- (Angstrom)
FWHM (?) : 1011.22 ------- (Angstrom)
Af/AV (?) : 1.32 ------- ()
Fsun (?) : 174.32 ------- (erg/cm2/s/A)


Data file: ascii, VOTable

Reference for filter response: ESO Filter information

Transmission components: Filterid:LaSilla/EFOSC.ESO639

You can download here the GaiaXPy base XML file for the full LaSilla/EFOSC filter set.
Please, take a look to GaiaXPy documentation for more information.

- GaiaXPy base XML file.

Calibration properties

Vega System
PropertySpecified Calculated Unit
Zero Point (?) : ------- 6.30517e-9(erg/cm2/s/A)
  ------- 3954.06(Jy)
ZP Type (?) : Pogson
PhotCal ID (?) : LaSilla/EFOSC.ESO639/Vega

AB System
PropertySpecified Calculated Unit
Zero Point (?) : ------- 5.79001e-9(erg/cm2/s/A)
  ------- 3631.00(Jy)
ZP Type (?) : Pogson
PhotCal ID (?) : LaSilla/EFOSC.ESO639/AB

ST System
PropertySpecified Calculated Unit
Zero Point (?) : ------- 3.631e-9(erg/cm2/s/A)
  ------- 2277.05(Jy)
ZP Type (?) : Pogson
PhotCal ID (?) : LaSilla/EFOSC.ESO639/ST

Filter added: 2011-10-18 05:43:13
Last update: 2021-07-27 20:06:50
LaSilla/EFOSC.ESO7244361.754471.244442.373220.515814.911615.453420.535.39e-9La SillaEFOSCEFOSC ESO#724, Tyson B
LaSilla/EFOSC.ESO7434771.184771.394770.684693.494850.8874.144110.675.41e-9La SillaEFOSCEFOSC ESO#743, Hβ Cont
LaSilla/EFOSC.ESO7424859.974860.184859.234777.524941.9574.613225.194.09e-9La SillaEFOSCEFOSC ESO#742, Hβ
LaSilla/EFOSC.ESO6875004.225004.355004.094941.245074.2457.313957.034.74e-9La SillaEFOSCEFOSC ESO#687, OIII
LaSilla/EFOSC.ESO7825114.665130.845105.004657.905610.02788.293778.234.33e-9La SillaEFOSCEFOSC ESO#782, Gunn g
LaSilla/EFOSC.ESO6415498.965545.595457.674754.197011.301143.233601.023.57e-9La SillaEFOSCEFOSC ESO#641, Bessell V
LaSilla/EFOSC.ESO6926558.306558.416557.426490.006624.8463.912505.761.75e-9La SillaEFOSCEFOSC ESO#692, Halpha
LaSilla/EFOSC.ESO6426518.646627.866414.355472.469366.931719.983042.752.15e-9La SillaEFOSCEFOSC ESO#642, Bessell R
LaSilla/EFOSC.ESO7096644.616644.756644.766568.526718.3073.222919.081.98e-9La SillaEFOSCEFOSC ESO#709, Halpha Red
LaSilla/EFOSC.ESO7846677.406698.326656.656038.477364.71953.752906.771.95e-9La SillaEFOSCEFOSC ESO#784, Gunn r
LaSilla/EFOSC.ESO7006730.036730.126729.936670.006793.4660.802913.191.93e-9La SillaEFOSCEFOSC ESO#700, [SII]
LaSilla/EFOSC.ESO7057983.208018.497946.217141.248920.261413.682415.711.14e-9La SillaEFOSCEFOSC ESO#705, Gunn i

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This research has made use of the Spanish Virtual Observatory ( project funded by MCIN/AEI/10.13039/501100011033/ through grant PID2020-112949GB-I00

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