SVO Filter Profile Service

GCPD :Filters at GCPD
GCPD/Cape :The UcBV photometric systemid:GCPD/Cape.a
→ GaiaXPy base XML file. You can download here the GaiaXPy base XML file for the full GCPD/Cape filter set. Please, take a look to the GaiaXPy web page and additional documentation for more information.

GCPD filters: Cape Cousins DDO Eggen Geneva JHKLMN Johnson Stromgren Vilnius Walraven Washington WBVR

Filter ID

λ_ref

λ_mean

λ_eff

λ_min

λ_max

W_eff

ZP_ν

ZP_λ

3901.60

3932.95

3978.48

3276.50

5002.82

503.51

2875.82

5.66e-9

Cape Johnson U filter in GCPD (revised by Mann & von Braun 2014)

GCPD/Cape.Uc

Filter Description

Filter ID (?) : GCPD/Cape.Uc

Description (?) : Cape Johnson U filter in GCPD (revised by Mann & von Braun 2014)

Phot.System (?) : Johnson

Detector Type (?) : Energy counter

Band Name (?) : U

Obs. Facility (?) : ------

Instrument (?) : ------

Comments (?) : Cape Town Royal Observatory
24-inch refracting telescope
2 mm Corning 9863
Arp (1958) : http://adsabs.harvard.edu/abs/1958AJ.....63..118A

Mathematical properties

Property Calculated Specified Unit

λ_ref (?) : 3901.60 ------- (Angstrom)

λ_mean (?) : 3932.95 ------- (Angstrom)

λ_cen (?) : 3838.13 ------- (Angstrom)

λ_eff (?) : 3978.48 ------- (Angstrom)

λ_peak (?) : 3864.40 ------- (Angstrom)

λ_pivot (?) : 3901.60 ------- (Angstrom)

λ_phot (?) : 3998.19 ------- (Angstrom)

λ_min (?) : 3276.50 ------- (Angstrom)

λ_max (?) : 5002.82 ------- (Angstrom)

W_eff (?) : 503.51 ------- (Angstrom)

FWHM (?) : 414.03 ------- (Angstrom)

A_f/A_V (?) : 1.47 ------- ()

F_sun (?) : 130.22 ------- (erg/cm2/s/A)

Transmission

Data file: ascii, VOTable

Reference for filter response: Mann & von Braun 2014id:GCPD/Cape.Uc

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

- GaiaXPy base XML file.

Calibration properties

Vega System
Property Specified Calculated Unit
Zero Point (?) : ------- 5.66367e-9 (erg/cm2/s/A)

------- 2875.82 (Jy)

ZP Type (?) : Pogson

PhotCal ID (?) : GCPD/Cape.Uc/Vega

AB System
Property Specified Calculated Unit
Zero Point (?) : ------- 7.15092e-9 (erg/cm2/s/A)

------- 3631.00 (Jy)

ZP Type (?) : Pogson

PhotCal ID (?) : GCPD/Cape.Uc/AB

ST System
Property Specified Calculated Unit
Zero Point (?) : ------- 3.631e-9 (erg/cm2/s/A)

------- 1843.70 (Jy)

ZP Type (?) : Pogson

PhotCal ID (?) : GCPD/Cape.Uc/ST

Reference for calibration: Mann & von Braun 2014

Filter added: 2014-12-06 03:20:03
Last update: 2022-05-04 15:49:14

GCPD/Cape.Uc_ADPS

3924.26

3938.19

3968.68

3437.95

4747.54

373.12

3182.81

6.2e-9

Cape Johnson U filter in GCPD (ADPS)

GCPD/Cape.B_ADPS

4310.17

4334.51

4314.16

3641.74

5102.34

759.97

4032.64

6.51e-9

Cape Johnson B filter in GCPD (ADPS)

GCPD/Cape.V_ADPS

5447.82

5467.65

5428.95

4857.19

6500.00

625.86

3648.21

3.69e-9

Cape Johnson V filter in GCPD (ADPS)

Filter Plots

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 SVO Filter Profile Service "Carlos Rodrigo", funded by MCIN/AEI/10.13039/501100011033/ through grant PID2023-146210NB-I00

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

Rodrigo, C., Cruz, P., Aguilar, J.F., et al. 2024; https://ui.adsabs.harvard.edu/abs/2024A%26A...689A..93R/abstract
The SVO Filter Profile Service. Rodrigo, C., Solano, E., Bayo, A., 2012; https://ui.adsabs.harvard.edu/abs/2012ivoa.rept.1015R/abstract
The SVO Filter Profile Service. Rodrigo, C., Solano, E., 2020; https://ui.adsabs.harvard.edu/abs/2020sea..confE.182R/abstract