BOK :The 90'' (2.3 m) Bok Telescope on Kitt Peak is the largest telescope operated solely by Steward Observatory. BOK/90prime :90Prime is a prime focus wide-field imager for the Steward Observatory 90” telescope. |
| BOK/90prime.sdss_u | 3481.55 | 3495.80 | 3508.54 | 3062.60 | 3939.25 | 553.90 | 1385.28 | 3.37e-9 | BOK | 90prime | 90prime SDSS u' filter | | BOK/90prime.U | 3600.94 | 3618.13 | 3674.22 | 3092.58 | 4134.80 | 587.72 | 1806.67 | 4.01e-9 | BOK | 90prime | 90prime U filter | | BOK/90prime.U | Filter Description | Filter ID (?) : | BOK/90prime.U |
| Description (?) : | 90prime U filter |
| Phot.System (?) : | ------ |
| Detector Type (?) : | Energy counter |
| Band Name (?) : | U |
| Obs. Facility (?) : | BOK |
| Instrument (?) : | 90prime |
| Comments (?) : | ------ |
| | Mathematical properties | Property | Calculated | Specified | Unit | | λref (?) : |
3600.94 | ------- | (Angstrom) |
| λmean (?) : |
3618.13 | ------- | (Angstrom) |
| λcen (?) : |
3617.11 | ------- | (Angstrom) |
| λeff (?) : |
3674.22 | ------- | (Angstrom) |
| λpeak (?) : |
3685.00 | ------- | (Angstrom) |
| λpivot (?) : |
3600.94 | ------- | (Angstrom) |
| λphot (?) : |
3687.03 | ------- | (Angstrom) |
| λmin (?) : |
3092.58 | ------- | (Angstrom) |
| λmax (?) : |
4134.80 | ------- | (Angstrom) |
| Weff (?) : |
587.72 | ------- | (Angstrom) |
| FWHM (?) : |
601.23 | ------- | (Angstrom) |
| Af/AV (?) : |
1.55 | ------- | () |
| Fsun (?) : |
100.39 | ------- | (erg/cm2/s/A) |
| Transmission
Data file: ascii, VOTable Reference for filter response:
90prime info Transmission components: Filter | | Calibration properties
Vega System | Property | Specified | Calculated | Unit | | Zero Point (?) : |
------- |
4.01209e-9 | (erg/cm2/s/A) |
| |
------- |
1806.67 | (Jy) |
| ZP Type (?) : |
Pogson |
| PhotCal ID (?) : |
BOK/90prime.U/Vega |
| |
AB System | Property | Specified | Calculated | Unit | | Zero Point (?) : |
------- |
8.06338e-9 | (erg/cm2/s/A) |
| |
------- |
3631.00 | (Jy) |
| ZP Type (?) : |
Pogson |
| PhotCal ID (?) : |
BOK/90prime.U/AB |
| |
ST System | Property | Specified | Calculated | Unit | | Zero Point (?) : |
------- |
3.631e-9 | (erg/cm2/s/A) |
| |
------- |
1635.07 | (Jy) |
| ZP Type (?) : |
Pogson |
| PhotCal ID (?) : |
BOK/90prime.U/ST |
| |
|
Filter added: 2017-08-08 13:09:24
Last update: 2020-12-10 16:28:08 | | BOK/90prime.B | 4294.26 | 4332.01 | 4306.97 | 3608.41 | 5277.99 | 976.45 | 3946.17 | 6.38e-9 | BOK | 90prime | 90prime B filter | | BOK/90prime.Wash_M | 5128.15 | 5174.14 | 5088.31 | 4373.96 | 6372.08 | 1207.88 | 3760.40 | 4.35e-9 | BOK | 90prime | 90prime Washington M filter | | BOK/90prime.V | 5316.87 | 5340.91 | 5297.94 | 4767.84 | 6308.80 | 808.77 | 3677.34 | 3.93e-9 | BOK | 90prime | 90prime V filter | | BOK/90prime.R | 6350.22 | 6417.49 | 6287.91 | 5473.13 | 8388.76 | 1292.66 | 3055.31 | 2.32e-9 | BOK | 90prime | 90prime R filter | | BOK/90prime.halpha_657 | 6575.09 | 6575.19 | 6576.48 | 6507.50 | 6639.46 | 67.52 | 2502.63 | 1.73e-9 | BOK | 90prime | 90prime Halpha filter at 657.52nm | | BOK/90prime.halpha_659 | 6594.30 | 6594.41 | 6596.65 | 6529.03 | 6656.21 | 68.57 | 2650.98 | 1.83e-9 | BOK | 90prime | 90prime Halpha filter at 659.42nm | | BOK/90prime.halpha_662 | 6626.46 | 6626.59 | 6626.96 | 6557.07 | 6697.93 | 74.37 | 2908.97 | 1.99e-9 | BOK | 90prime | 90prime Halpha filter at 662.65nm | | BOK/90prime.halpha_664 | 6646.71 | 6646.84 | 6646.77 | 6578.00 | 6718.40 | 74.83 | 2944.00 | 2.0e-9 | BOK | 90prime | 90prime Halpha filter at 664.67nm | | BOK/90prime.I | 8648.76 | 8806.92 | 8530.19 | 7008.47 | 11603.08 | 2944.68 | 2282.95 | 9.41e-10 | BOK | 90prime | 90prime I filter | | BOK/90prime.sdss_z | 9966.10 | 10138.94 | 9812.51 | 8152.97 | 12000.00 | 3642.30 | 2032.45 | 6.33e-10 | BOK | 90prime | 90prime SDSS z' 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=3618.1281855751&id=BOK/90prime.U><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=3674.2183431403&id=BOK/90prime.U><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=3600.9388113511&id=BOK/90prime.U><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=3687.0273647167&id=BOK/90prime.U><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=587.71874407746,3617.1125461255,0.705&id=BOK/90prime.U><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}
