|
| UKIRT/WFCAM.Z_filter | 8817.9 | 8801.6 | 8129 | 9457 | 926.5 | 2261.3 | UKIRT | WFCAM | WFCAM Z filter (filter only) | | UKIRT/WFCAM.Z | 8830.7 | 8817.0 | 8360 | 9290 | 930.0 | 2261.4 | UKIRT | WFCAM | WFCAM Z filter (total transmission) | | UKIRT/WFCAM.Y | 10318.7 | 10305.0 | 9790 | 10810 | 1020.0 | 2057.2 | UKIRT | WFCAM | WFCAM Y filter (total transmission) | | UKIRT/WFCAM.Y_filter | 10367.8 | 10339.1 | 9648 | 11126 | 999.1 | 2040.9 | UKIRT | WFCAM | WFCAM Y filter (filter only) | | UKIRT/WFCAM.J | 12510.2 | 12483.0 | 11690 | 13280 | 1590.0 | 1556.8 | UKIRT | WFCAM | WFCAM J filter (total transmission) | | UKIRT/WFCAM.J_filter | 12556.0 | 12490.2 | 11481 | 13718 | 1513.2 | 1548.7 | UKIRT | WFCAM | WFCAM J filter (filter only) | | UKIRT/WFCAM.H | 16377.1 | 16313.0 | 14920 | 17840 | 2920.0 | 1038.3 | UKIRT | WFCAM | WFCAM H filter (total transmission) | | UKIRT/WFCAM.H_filter | 16495.8 | 16338.2 | 14565 | 18762 | 2810.3 | 1027.1 | UKIRT | WFCAM | WFCAM H filter (filter only) | | UKIRT/WFCAM.H2_filter | 21416.1 | 21414.3 | 21140 | 21702 | 210.4 | 677.1 | UKIRT | WFCAM | WFCAM H2 filter (filter only) | | UKIRT/WFCAM.Brg_filter | 21832.4 | 21832.1 | 21418 | 22280 | 306.6 | 645.5 | UKIRT | WFCAM | WFCAM Brg filter (filter only) | | UKIRT/WFCAM.K | 22082.8 | 22010.0 | 20290 | 23800 | 3510.0 | 644.1 | UKIRT | WFCAM | WFCAM K filter (total transmission) | | UKIRT/WFCAM.K_filter | 22356.2 | 22185.2 | 19833 | 24743 | 3251.3 | 630.0 | UKIRT | WFCAM | WFCAM K filter (filter only) | | UKIRT/WFCAM.K_filter | Filter Description | Filter ID (?) : | UKIRT/WFCAM.K_filter |
| Description (?) : | WFCAM K filter (filter only) |
| Phot.System (?) : | WFCAM |
| Detector Type (?) : | Energy counter |
| Band Name (?) : | ------ |
| Obs. Facility (?) : | UKIRT |
| Instrument (?) : | WFCAM |
| Comments (?) : | The filter profile here was measured at room temperature and is not
corrected for the wavelength shifts induced by cooling to 120K and
the 10-degree angle of incidence of the beam on the filter. For a
description of the final transmission curve, corrected for detector
quantum efficiency, angle of incidence and the operating temperature
of the filter, please see UKIRT/WFCAM.K.
|
| | Mathematical properties | Property | Calculated | Specified | Unit | | λmean (?) : |
22356.20 | ------- | (Angstrom) |
| λcen (?) : |
22342.88 | ------- | (Angstrom) |
| λeff (?) : |
22185.15 | ------- | (Angstrom) |
| λpeak (?) : |
22830.00 | ------- | (Angstrom) |
| λpivot (?) : |
22286.69 | ------- | (Angstrom) |
| λphot (?) : |
22231.46 | ------- | (Angstrom) |
| λmin (?) : |
19832.70 | ------- | (Angstrom) |
| λmax (?) : |
24743.22 | ------- | (Angstrom) |
| Weff (?) : |
3251.32 | ------- | (Angstrom) |
| FWHM (?) : |
3358.01 | ------- | (Angstrom) |
| Af/AV (?) : |
0.12 | ------- | () |
| Transmission curve
Data file: ascii, VOTable Reference for filter response:
UKIRT: WFCAM | | Calibration properties
Vega System | Property | Specified | Calculated | Unit | | Zero Point (?) : |
------- |
3.837e-11 | (erg/cm2/s/A) |
| |
------- |
630.01 | (Jy) |
| ZP Type (?) : |
Pogson |
| PhotCal ID (?) : |
UKIRT/WFCAM.K_filter/Vega |
| |
AB System | Property | Specified | Calculated | Unit | | Zero Point (?) : |
------- |
2.212e-10 | (erg/cm2/s/A) |
| |
------- |
3631.00 | (Jy) |
| ZP Type (?) : |
Pogson |
| PhotCal ID (?) : |
UKIRT/WFCAM.K_filter/AB |
| |
ST System | Property | Specified | Calculated | Unit | | Zero Point (?) : |
------- |
3.631e-9 | (erg/cm2/s/A) |
| |
------- |
59611.54 | (Jy) |
| ZP Type (?) : |
Pogson |
| PhotCal ID (?) : |
UKIRT/WFCAM.K_filter/ST |
| |
|
Filter added: 2011-10-18 09:28:18
Last update: 2018-07-25 18:20:36 |
|
© SVO, 5065 filters available, Last update: 2019-11-30 | 
 ≡ filter transmission<p><u>Property info:</u><ul><li><b>Unit</b>:Angstrom<li><b>UCD</b>:em.wl<li><b>Utype</b>: <i>photdm:PhotometryFilter.SpectralAxis.Coverage.Location.Value</i></ul></td></table>',WIDTH,400)){kind=link}
 ≡ filter transmission<br> Vg(λ) ≡ Vega spectrum<p><u>Property info:</u><ul><li><b>Unit</b>:Angstrom<li><b>UCD</b>:em.wl.effective</ul></td></table>',WIDTH,400)){kind=link}
 ≡ filter transmission<p>Equivalent to the horizontal size of a rectangle with height equal to maximum transmission and with the same area that the one covered by the filter transmission curve.<p><u>Property info:</u><ul><li><b>Unit</b>:Angstrom<li><b>UCD</b>:instr.bandwidth<li><b>Utype</b>: <i>photdm:PhotometryFilter.SpectralAxis.Coverage.Bounds.Extent</i></ul></td></table>',WIDTH,400)){kind=link}
</b><br><table cellpadding=20><td class=helptd>Zero Point in Vega System.<p>Calculated by the service as:<p><img src=images/latex/zp.png> <p>where:<p> T(λ) ≡ filter transmission<br> Vg(λ) ≡ Vega spectrum<p>F<sub>0,ν</sub>(Jy) = (2.9979246)<sup>-1</sup> 10<sup>5</sup> * λ<sub>eff</sub><sup>2</sup> * F<sub>0,λ</sub>(erg/cm<sup>2</sup>/s/A)<p>In the case that filter owner specifies its own values, they will be the ones provided by the service when queried through the VO.<p><u>Property info:</u><ul><li><b>Unit</b>:Jy<li><b>UCD</b>:phot.flux.density<li><b>Utype</b>: <i>photdm:PhotCal.ZeroPoint.Flux.value</i></ul></td></table>',WIDTH,400)){kind=link}
 ≡ filter transmission<p>f(λ) ≡ flux of the spectrum<p><u>Property info:</u><ul><li><b>Utype</b>: <i>photdm:PhotometricSystem.detectorType</i></ul></td></table>',WIDTH,400)){kind=link}
 ≡ filter transmission<p><img src=showgraph.php?what=lmean&val=22356.19792453&id=UKIRT/WFCAM.K_filter><p><u>Property info:</u><ul><li><b>Unit</b>:Angstrom<li><b>UCD</b>:em.wl<li><b>Utype</b>: <i>photdm:PhotometryFilter.SpectralAxis.Coverage.Location.Value</i></ul></td></table>',STICKY,true,CLOSEBTN,true,WIDTH,400)){kind=link}
 ≡ filter transmission<br> Vg(λ) ≡ Vega spectrum<p><img src=showgraph.php?what=leff&val=22185.152112807&id=UKIRT/WFCAM.K_filter><p><u>Property info:</u><ul><li><b>Unit</b>:Angstrom<li><b>UCD</b>:em.wl.effective</ul></td></table>',STICKY,true,CLOSEBTN,true,WIDTH,400)){kind=link}
 ≡ filter transmission<p><img src=showgraph.php?what=lpiv&val=22286.685388749&id=UKIRT/WFCAM.K_filter><p><u>Property info:</u><ul><li><b>Unit</b>:Angstrom<li><b>UCD</b>:em.wl</ul></td></table>',STICKY,true,CLOSEBTN,true,WIDTH,400)){kind=link}
 ≡ filter transmission<br> Vg(λ) ≡ Vega spectrum<p><img src=showgraph.php?what=lphot&val=22231.460824397&id=UKIRT/WFCAM.K_filter><p><u>Property info:</u><ul><li><b>Unit</b>:Angstrom<li><b>UCD</b>:em.wl</ul></td></table>',STICKY,true,CLOSEBTN,true,WIDTH,400)){kind=link}
 ≡ filter transmission<p>Equivalent to the horizontal size of a rectangle with height equal to maximum transmission and with the same area that the one covered by the filter transmission curve.<p><img src=showgraph.php?what=weff&val=3251.3166112593,22342.87869323,0.833093&id=UKIRT/WFCAM.K_filter><p><u>Property info:</u><ul><li><b>Unit</b>:Angstrom<li><b>UCD</b>:instr.bandwidth<li><b>Utype</b>: <i>photdm:PhotometryFilter.SpectralAxis.Coverage.Bounds.Extent</i></ul></td></table>',STICKY,true,CLOSEBTN,true,WIDTH,400)){kind=link}
![(?)](javascript:Tip('<b>A<sub>f</sub>/A<sub>V</sub></b><br><table cellpadding=20><td class=helptd>Ratio between extintion at λ<sub>eff</sub> and visual extintion. <p>Calculated by the service using the extinction law by <a href="http://adsabs.harvard.edu/abs/1999PASP..111...63F" target="_blank">Fitzpatrick (1999)</a> improved by <a href="http://adsabs.harvard.edu/abs/2005ApJ...619..931I" target="_blank">Indebetouw et al (2005)</a> in the infrared. <p><img src=images/extinctionlaw.png><p>You can download the corresponding <a href=\"getextlaw.php\" target=\"_blank\">data file</a> for the opacity k<sub>λ</sub>. The extinction at each wavelength is calculated as: A<sub>λ</sub> = A<sub>V</sub> * k<sub>λ</sub>/k<sub>V</sub>, where k<sub>λ</sub> is the opacity for a given λ and k<sub>V</sub>=211.4<p><p><u>Property info:</u><ul></ul></td></table>',STICKY,true,CLOSEBTN,true,WIDTH,400)){kind=link}
 ≡ filter transmission<br> Vg(λ) ≡ Vega spectrum<p>F<sub>0,ν</sub>(Jy) = (2.9979246)<sup>-1</sup> 10<sup>5</sup> * λ<sub>eff</sub><sup>2</sup> * F<sub>0,λ</sub>(erg/cm<sup>2</sup>/s/A)<p>In the case that filter owner specifies its own values, they will be the ones provided by the service when queried through the VO.<p><u>VO PhotDM Utypes</u>: <br><i>PhotCal.MagnitudeSystem.type</i> -> VEGAmag <br><i>PhotCal.ZeroPoint.Flux.value</i> -> F<sub>0</sub><p><u>Property info:</u><ul><li><b>UCD</b>:phot.flux.density<li><b>Utype</b>: <i>photdm:PhotCal.ZeroPoint.Flux.value</i></ul></td></table>',STICKY,true,CLOSEBTN,true,WIDTH,400)){kind=link}