CFHT :Canada-France-Hawaii Telescope CFHT/Wircam :WIRCam (Wide-field InfraRed Camera), is the near infrared mosaic imager at CFHTid:CFHT/Wircam.a |
| CFHT/Wircam.Y | 10241.51 | 10258.80 | 10220.90 | 9386.00 | 11134.00 | 1084.17 | 2054.36 | 5.87e-10 | CFHT | Wircam | Wircam Y | | CFHT/Wircam.LowOH1 | 10628.59 | 10628.77 | 10628.28 | 10512.00 | 10744.00 | 102.87 | 1969.51 | 5.23e-10 | CFHT | Wircam | Wircam Low OH-1 | | CFHT/Wircam.LowOH2 | 11892.09 | 11892.28 | 11891.86 | 11764.00 | 12018.75 | 118.29 | 1663.28 | 3.53e-10 | CFHT | Wircam | Wircam Low OH-2 | | CFHT/Wircam.J | 12518.72 | 12544.57 | 12481.13 | 11535.86 | 13544.22 | 1547.90 | 1532.19 | 2.93e-10 | CFHT | WFC | Wircam J | | CFHT/Wircam.W | 14524.26 | 14531.68 | 14514.00 | 13890.20 | 15166.15 | 866.93 | 1220.82 | 1.73e-10 | CFHT | Wircam | Wircam W filter | | CFHT/Wircam.W | Filter Description | Filter ID (?) : | CFHT/Wircam.W |
| Description (?) : | Wircam W filter |
| Phot.System (?) : | Wircam |
| Detector Type (?) : | Energy counter |
| Band Name (?) : | W |
| Obs. Facility (?) : | CFHT |
| Instrument (?) : | Wircam |
| Comments (?) : | Manufacturer (Materion) data on the transmission of the filter at the center. The data has been compensated for the angles of the beam in WIRCam and the temperature differential.
|
| | Mathematical properties | Property | Calculated | Specified | Unit | | λref (?) : |
14524.26 | ------- | (Angstrom) |
| λmean (?) : |
14531.68 | ------- | (Angstrom) |
| λcen (?) : |
14530.04 | ------- | (Angstrom) |
| λeff (?) : |
14514.00 | ------- | (Angstrom) |
| λpeak (?) : |
14849.30 | ------- | (Angstrom) |
| λpivot (?) : |
14524.26 | ------- | (Angstrom) |
| λphot (?) : |
14518.96 | ------- | (Angstrom) |
| λmin (?) : |
13890.20 | ------- | (Angstrom) |
| λmax (?) : |
15166.15 | ------- | (Angstrom) |
| Weff (?) : |
866.93 | ------- | (Angstrom) |
| FWHM (?) : |
884.59 | ------- | (Angstrom) |
| Af/AV (?) : |
0.241 | ------- | () |
| Fsun (?) : |
31.34 | ------- | (erg/cm2/s/A) |
| Transmission
Data file: ascii, VOTable Reference for filter response:
Wircam Filters Transmission components: Filterid:CFHT/Wircam.W | | Calibration properties
Vega System | Property | Specified | Calculated | Unit | | Zero Point (?) : |
------- |
1.73494e-10 | (erg/cm2/s/A) |
| |
------- |
1220.82 | (Jy) |
| ZP Type (?) : |
Pogson |
| PhotCal ID (?) : |
CFHT/Wircam.W/Vega |
| |
AB System | Property | Specified | Calculated | Unit | | Zero Point (?) : |
------- |
5.16011e-10 | (erg/cm2/s/A) |
| |
------- |
3631.00 | (Jy) |
| ZP Type (?) : |
Pogson |
| PhotCal ID (?) : |
CFHT/Wircam.W/AB |
| |
ST System | Property | Specified | Calculated | Unit | | Zero Point (?) : |
------- |
3.631e-9 | (erg/cm2/s/A) |
| |
------- |
25550.15 | (Jy) |
| ZP Type (?) : |
Pogson |
| PhotCal ID (?) : |
CFHT/Wircam.W/ST |
| |
|
Filter added: 2018-07-26 10:07:47
Last update: 2021-07-27 18:55:07 | | CFHT/Wircam.CH4_off | 15883.50 | 15892.06 | 15872.22 | 15092.00 | 16680.00 | 946.55 | 1055.10 | 1.25e-10 | CFHT | Wircam | Wircam CH4 off | | CFHT/Wircam.H | 16243.54 | 16309.91 | 16157.46 | 14628.97 | 18085.44 | 2885.70 | 1032.90 | 1.17e-10 | CFHT | Wircam | Wircam H | | CFHT/Wircam.CH4_on | 16909.64 | 16918.98 | 16896.52 | 16091.42 | 17702.35 | 1052.69 | 966.92 | 1.01e-10 | CFHT | Wircam | Wircam CH4 on | | CFHT/Wircam.H2 | 21299.47 | 21300.22 | 21298.24 | 20994.00 | 21594.00 | 298.08 | 669.62 | 4.42e-11 | CFHT | Wircam | Wircam H2 | | CFHT/Wircam.Ks | 21434.00 | 21497.46 | 21337.56 | 19577.92 | 23431.05 | 3208.56 | 664.76 | 4.34e-11 | CFHT | Wircam | Wircam Ks | | CFHT/Wircam.Brackett_gamma | 21719.09 | 21719.84 | 21719.93 | 21402.17 | 22026.51 | 304.43 | 622.06 | 3.95e-11 | CFHT | Wircam | Wircam Brackett gamma | | CFHT/Wircam.Kcont | 22244.87 | 22245.68 | 22243.68 | 21941.15 | 22549.06 | 330.98 | 621.24 | 3.76e-11 | CFHT | Wircam | Wircam K continuum | | CFHT/Wircam.CO | 23199.93 | 23200.89 | 23198.53 | 22904.73 | 23502.57 | 400.29 | 577.38 | 3.22e-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</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.bandwidth.extent.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>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>UCD</b>:meta.code<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=14531.67922521&id=CFHT/Wircam.W><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=leff&val=14514.00072964&id=CFHT/Wircam.W><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=14524.256627807&id=CFHT/Wircam.W><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=14518.955562709&id=CFHT/Wircam.W><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=866.93140630417,14530.041041566,0.9598371359&id=CFHT/Wircam.W><p><u>Property info:</u><ul><li><b>Unit</b>:Angstrom<li><b>UCD</b>:instr.bandwidth<li><b>Utype</b>: <i>photdm:PhotometryFilter.bandwidth.extent.value</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/extlaw.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/sun.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}
