CFHT :Canada-France-Hawaii Telescope CFHT/Wircam :WIRCam (Wide-field InfraRed Camera), is the near infrared mosaic imager at CFHT |
| CFHT/Wircam.Y | 10241.51 | 10258.80 | 10221.26 | 9386.00 | 11134.00 | 1084.17 | 2073.32 | 5.95e-10 | CFHT | Wircam | Wircam Y | | CFHT/Wircam.LowOH1 | 10628.59 | 10628.76 | 10628.29 | 10512.00 | 10744.00 | 102.87 | 1999.33 | 5.31e-10 | CFHT | Wircam | Wircam Low OH-1 | | CFHT/Wircam.LowOH2 | 11892.09 | 11892.29 | 11891.86 | 11764.00 | 12018.75 | 118.28 | 1692.30 | 3.59e-10 | CFHT | Wircam | Wircam Low OH-2 | | CFHT/Wircam.J | 12518.72 | 12544.57 | 12481.45 | 11535.86 | 13544.22 | 1547.90 | 1551.01 | 2.98e-10 | CFHT | WFC | Wircam J | | CFHT/Wircam.W | 14524.26 | 14531.68 | 14514.06 | 13890.20 | 15166.15 | 866.93 | 1244.15 | 1.77e-10 | CFHT | Wircam | Wircam W filter | | CFHT/Wircam.CH4_off | 15883.50 | 15892.05 | 15872.46 | 15092.00 | 16680.00 | 946.47 | 1076.31 | 1.28e-10 | CFHT | Wircam | Wircam CH4 off | | CFHT/Wircam.H | 16243.54 | 16309.91 | 16158.20 | 14628.97 | 18085.44 | 2885.70 | 1044.35 | 1.2e-10 | CFHT | Wircam | Wircam H | | CFHT/Wircam.CH4_on | 16909.64 | 16918.98 | 16896.56 | 16091.42 | 17702.35 | 1052.69 | 987.39 | 1.04e-10 | CFHT | Wircam | Wircam CH4 on | | CFHT/Wircam.H2 | 21299.47 | 21300.22 | 21298.24 | 20994.00 | 21594.00 | 298.08 | 685.59 | 4.53e-11 | CFHT | Wircam | Wircam H2 | | CFHT/Wircam.H2 | Filter Description | Filter ID (?) : | CFHT/Wircam.H2 |
| Description (?) : | Wircam H2 |
| Phot.System (?) : | Wircam |
| Detector Type (?) : | Energy counter |
| Band Name (?) : | ------ |
| Obs. Facility (?) : | CFHT |
| Instrument (?) : | Wircam |
| Comments (?) : | ------ |
| | Mathematical properties | Property | Calculated | Specified | Unit | | λref (?) : |
21299.47 | ------- | (Angstrom) |
| λmean (?) : |
21300.22 | ------- | (Angstrom) |
| λcen (?) : |
21301.68 | ------- | (Angstrom) |
| λeff (?) : |
21298.24 | ------- | (Angstrom) |
| λpeak (?) : |
21256.00 | ------- | (Angstrom) |
| λpivot (?) : |
21299.47 | ------- | (Angstrom) |
| λphot (?) : |
21298.75 | ------- | (Angstrom) |
| λmin (?) : |
20994.00 | ------- | (Angstrom) |
| λmax (?) : |
21594.00 | ------- | (Angstrom) |
| Weff (?) : |
298.08 | ------- | (Angstrom) |
| FWHM (?) : |
294.54 | ------- | (Angstrom) |
| Af/AV (?) : |
0.128 | ------- | () |
| Fsun (?) : |
9.26 | ------- | (erg/cm2/s/A) |
| Transmission
Data file: ascii, VOTable Reference for filter response:
CFHT filters Transmission components: Filter | | Calibration properties
Vega System | Property | Specified | Calculated | Unit | | Zero Point (?) : |
------- |
4.53103e-11 | (erg/cm2/s/A) |
| |
------- |
685.59 | (Jy) |
| ZP Type (?) : |
Pogson |
| PhotCal ID (?) : |
CFHT/Wircam.H2/Vega |
| |
AB System | Property | Specified | Calculated | Unit | | Zero Point (?) : |
------- |
2.39971e-10 | (erg/cm2/s/A) |
| |
------- |
3631.00 | (Jy) |
| ZP Type (?) : |
Pogson |
| PhotCal ID (?) : |
CFHT/Wircam.H2/AB |
| |
ST System | Property | Specified | Calculated | Unit | | Zero Point (?) : |
------- |
3.631e-9 | (erg/cm2/s/A) |
| |
------- |
54940.57 | (Jy) |
| ZP Type (?) : |
Pogson |
| PhotCal ID (?) : |
CFHT/Wircam.H2/ST |
| |
|
Filter added: 2010-04-17 05:58:56
Last update: 2020-12-10 16:28:39 | | CFHT/Wircam.Ks | 21434.00 | 21497.46 | 21337.77 | 19577.92 | 23431.05 | 3208.56 | 674.62 | 4.44e-11 | CFHT | Wircam | Wircam Ks | | CFHT/Wircam.Brackett_gamma | 21719.09 | 21719.84 | 21719.91 | 21402.17 | 22026.51 | 304.43 | 637.28 | 4.05e-11 | CFHT | Wircam | Wircam Brackett gamma | | CFHT/Wircam.Kcont | 22244.87 | 22245.68 | 22243.68 | 21941.15 | 22549.06 | 330.98 | 636.17 | 3.85e-11 | CFHT | Wircam | Wircam K continuum | | CFHT/Wircam.CO | 23199.93 | 23200.89 | 23198.52 | 22904.73 | 23502.57 | 400.29 | 591.40 | 3.29e-11 | CFHT | Wircam | Wircam CO filter |
|
| 
 ≡ 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>More info:</u><p>Vega spectrum from calspec database.<ul><li><a href="https://ui.adsabs.harvard.edu/abs/2014PASP..126..711B/abstract" target="_blank">Bohlin, Gordon, & Tremblay (2014)</a>.<li><a href="https://www.stsci.edu/hst/instrumentation/reference-data-for-calibration-and-tools/astronomical-catalogs/calspec" target="_blank">STScI current calspec</a>.<li><a href="morefiles/vega.dat" target="_blank">Vega spectrum file</a> (units: Angstrom erg/cm2/s/A).</ul><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}
 ≡ filter transmission (energy counter).<br> Vg(λ) ≡ Vega spectrum.<p><i>(T(λ) must be multiplied by λ for photon counting devices)</i><p>F<sub>0,ν</sub>(Jy) = (2.9979246)<sup>-1</sup> 10<sup>5</sup> * λ<sub>ref</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 (energy counter).<br> Vg(λ) ≡ Vega spectrum.<p><i>(T(λ) must be multiplied by λ for photon counting devices)</i><p><u>Property info:</u><ul><li><b>Unit</b>:erg/cm2/s/A<li><b>Utype</b>: <i>PhotCal.ZeroPoint</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=21300.2181386&id=CFHT/Wircam.H2><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=21298.2449071&id=CFHT/Wircam.H2><p><u>More info:</u><p>Vega spectrum from calspec database.<ul><li><a href="https://ui.adsabs.harvard.edu/abs/2014PASP..126..711B/abstract" target="_blank">Bohlin, Gordon, & Tremblay (2014)</a>.<li><a href="https://www.stsci.edu/hst/instrumentation/reference-data-for-calibration-and-tools/astronomical-catalogs/calspec" target="_blank">STScI current calspec</a>.<li><a href="morefiles/vega.dat" target="_blank">Vega spectrum file</a> (units: Angstrom erg/cm2/s/A).</ul><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=21299.466229362&id=CFHT/Wircam.H2><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=21298.7457562&id=CFHT/Wircam.H2><p><u>More info:</u><p>Vega spectrum from calspec database.<ul><li><a href="https://ui.adsabs.harvard.edu/abs/2014PASP..126..711B/abstract" target="_blank">Bohlin, Gordon, & Tremblay (2014)</a>.<li><a href="https://www.stsci.edu/hst/instrumentation/reference-data-for-calibration-and-tools/astronomical-catalogs/calspec" target="_blank">STScI current calspec</a>.<li><a href="morefiles/vega.dat" target="_blank">Vega spectrum file</a> (units: Angstrom erg/cm2/s/A).</ul><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=298.080943263,21301.6814833,0.80843&id=CFHT/Wircam.H2><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>ref</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> Sun(λ) ≡ Sun spectrum.<p><img src=images/sunspec.png><p><p><u>More info:</u><p>Sun spectrum from calspec database: sun_reference_stis_002 composed with sun_mod_001 for larger wavelengths.<ul><li><a href="https://ui.adsabs.harvard.edu/abs/2014PASP..126..711B/abstract" target="_blank">Bohlin, Gordon, & Tremblay (2014)</a>.<li><a href="https://www.stsci.edu/hst/instrumentation/reference-data-for-calibration-and-tools/astronomical-catalogs/calspec" target="_blank">STScI current calspec</a>.<li><a href="morefiles/sun.dat" target="_blank">Sun composed spectrum</a> (units: Angstrom erg/cm2/s/A).</ul><p><u>Property info:</u><ul><li><b>Unit</b>:erg/cm2/s/A<li><b>UCD</b>:phot.flux.density</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>ref</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>More info:</u><p>Vega spectrum from calspec database.<ul><li><a href="https://ui.adsabs.harvard.edu/abs/2014PASP..126..711B/abstract" target="_blank">Bohlin, Gordon, & Tremblay (2014)</a>.<li><a href="https://www.stsci.edu/hst/instrumentation/reference-data-for-calibration-and-tools/astronomical-catalogs/calspec" target="_blank">STScI current calspec</a>.<li><a href="morefiles/vega.dat" target="_blank">Vega spectrum file</a> (units: Angstrom erg/cm2/s/A).</ul><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}
