Subaru :Subaru Telescope Subaru/FOCAS :The Faint Object Camera and Spectrograph (FOCAS) is a versatile optical imaging and spectroscopy unit which can be installed at the Cassegrain focus of Subaru Telescope. |
| Subaru/FOCAS.U | 3574.69 | 3591.19 | 3636.14 | 3047.20 | 4106.59 | 550.05 | 1682.50 | 3.82e-9 | Subaru | FOCAS | FOCAS U | | Subaru/FOCAS.N373 | 3732.61 | 3732.78 | 3735.09 | 3671.57 | 3790.00 | 59.85 | 1644.04 | 3.53e-9 | Subaru | FOCAS | FOCAS N373 | | Subaru/FOCAS.N373 | Filter Description | Filter ID (?) : | Subaru/FOCAS.N373 |
| Description (?) : | FOCAS N373 |
| Phot.System (?) : | FOCAS |
| Detector Type (?) : | Energy counter |
| Band Name (?) : | ------ |
| Obs. Facility (?) : | Subaru |
| Instrument (?) : | FOCAS |
| Comments (?) : | ------ |
| | Mathematical properties | Property | Calculated | Specified | Unit | | λref (?) : |
3732.61 | ------- | (Angstrom) |
| λmean (?) : |
3732.78 | ------- | (Angstrom) |
| λcen (?) : |
3732.90 | ------- | (Angstrom) |
| λeff (?) : |
3735.09 | ------- | (Angstrom) |
| λpeak (?) : |
3730.00 | ------- | (Angstrom) |
| λpivot (?) : |
3732.61 | ------- | (Angstrom) |
| λphot (?) : |
3735.22 | ------- | (Angstrom) |
| λmin (?) : |
3671.57 | ------- | (Angstrom) |
| λmax (?) : |
3790.00 | ------- | (Angstrom) |
| Weff (?) : |
59.85 | ------- | (Angstrom) |
| FWHM (?) : |
59.28 | ------- | (Angstrom) |
| Af/AV (?) : |
1.53 | ------- | () |
| Fsun (?) : |
------- | ------- | (erg/cm2/s/A) |
| Transmission
Data file: ascii, VOTable Reference for filter response:
SUBARU: FOCAS Transmission components: Filter | | Calibration properties
Vega System | Property | Specified | Calculated | Unit | | Zero Point (?) : |
------- |
3.53289e-9 | (erg/cm2/s/A) |
| |
------- |
1644.04 | (Jy) |
| ZP Type (?) : |
Pogson |
| PhotCal ID (?) : |
Subaru/FOCAS.N373/Vega |
| |
AB System | Property | Specified | Calculated | Unit | | Zero Point (?) : |
------- |
7.80268e-9 | (erg/cm2/s/A) |
| |
------- |
3631.00 | (Jy) |
| ZP Type (?) : |
Pogson |
| PhotCal ID (?) : |
Subaru/FOCAS.N373/AB |
| |
ST System | Property | Specified | Calculated | Unit | | Zero Point (?) : |
------- |
3.631e-9 | (erg/cm2/s/A) |
| |
------- |
1689.70 | (Jy) |
| ZP Type (?) : |
Pogson |
| PhotCal ID (?) : |
Subaru/FOCAS.N373/ST |
| |
|
Filter added: 2011-10-18 08:08:43
Last update: 2020-08-30 19:07:49 | | Subaru/FOCAS.N386 | 3856.85 | 3857.35 | 3860.43 | 3761.53 | 3957.17 | 109.68 | 3108.69 | 6.25e-9 | Subaru | FOCAS | FOCAS N386 | | Subaru/FOCAS.B | 4372.43 | 4410.10 | 4373.84 | 3637.57 | 5102.56 | 1023.38 | 3963.93 | 6.21e-9 | Subaru | FOCAS | FOCAS B | | Subaru/FOCAS.N487 | 4874.29 | 4874.40 | 4876.54 | 4820.17 | 4929.10 | 53.82 | 3111.47 | 3.92e-9 | Subaru | FOCAS | FOCAS N487 | | Subaru/FOCAS.N502 | 5020.57 | 5020.70 | 5020.43 | 4961.39 | 5079.26 | 59.98 | 3943.27 | 4.69e-9 | Subaru | FOCAS | FOCAS N502 | | Subaru/FOCAS.N512 | 5115.37 | 5115.50 | 5115.21 | 5060.00 | 5170.00 | 61.09 | 3884.46 | 4.45e-9 | Subaru | FOCAS | FOCAS N512 | | Subaru/FOCAS.V | 5464.17 | 5489.32 | 5440.82 | 4804.36 | 6181.68 | 972.32 | 3597.05 | 3.64e-9 | Subaru | FOCAS | FOCAS V | | Subaru/FOCAS.N642 | 6417.40 | 6417.76 | 6416.99 | 6320.66 | 6516.17 | 125.67 | 3071.74 | 2.24e-9 | Subaru | FOCAS | FOCAS N642 | | Subaru/FOCAS.N658 | 6571.53 | 6571.66 | 6572.36 | 6510.00 | 6630.00 | 73.53 | 2528.11 | 1.75e-9 | Subaru | FOCAS | FOCAS N658 | | Subaru/FOCAS.R | 6549.06 | 6577.22 | 6519.51 | 5844.05 | 7445.59 | 1159.30 | 2965.09 | 2.09e-9 | Subaru | FOCAS | FOCAS R | | Subaru/FOCAS.N670 | 6706.24 | 6706.41 | 6706.09 | 6640.00 | 6778.71 | 84.30 | 2937.97 | 1.96e-9 | Subaru | FOCAS | FOCAS N670 | | Subaru/FOCAS.I | 8034.36 | 8070.97 | 7995.78 | 7097.96 | 9077.86 | 1454.65 | 2397.83 | 1.12e-9 | Subaru | FOCAS | FOCAS I |
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© SVO, 8967 filters available, Last update: 2020-11-27 | 
 ≡ 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}
 ≡ 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>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<br> Vg(λ) ≡ Vega spectrum<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=3732.78039229&id=Subaru/FOCAS.N373><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=3735.09345522&id=Subaru/FOCAS.N373><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=3732.6058000203&id=Subaru/FOCAS.N373><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=3735.21636947&id=Subaru/FOCAS.N373><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=59.8489235501,3732.89783615,0.6828&id=Subaru/FOCAS.N373><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>Sun spectrum from calspec database: sun_reference_stis_002 with sun_mod_001 for larger wavelengths.<p><img src=images/sunspec.png><p><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>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}
