Generic :Generic filters, not directly associated to any specific instrument. Generic/Johnson :Johnson generic photometric system |
| Generic/Johnson.U | 3511.89 | 3531.05 | 3570.65 | 3010.00 | 4100.00 | 657.00 | 1564.20 | 3.68e-9 | | | Johnson U | | Generic/Johnson.B | 4390.08 | 4430.42 | 4378.12 | 3709.09 | 5550.00 | 972.69 | 4023.81 | 6.29e-9 | | | Johnson B | | Generic/Johnson.V | 5501.42 | 5537.19 | 5466.11 | 4698.00 | 7204.00 | 889.65 | 3562.51 | 3.57e-9 | | | Johnson V | | Generic/Johnson.R | 6819.10 | 6939.56 | 6695.58 | 5233.33 | 9400.00 | 2069.97 | 2814.93 | 1.88e-9 | | | Johnson R | | Generic/Johnson.I | 8657.45 | 8780.66 | 8565.14 | 7000.00 | 11800.00 | 2316.00 | 2282.78 | 9.33e-10 | | | Johnson I | | Generic/Johnson.I | Filter Description | Filter ID (?) : | Generic/Johnson.I |
| Description (?) : | Johnson I |
| Phot.System (?) : | Johnson |
| Detector Type (?) : | Energy counter |
| Band Name (?) : | I |
| Obs. Facility (?) : | ------ |
| Instrument (?) : | ------ |
| Comments (?) : | Johnson I generic filter
|
| | Mathematical properties | Property | Calculated | Specified | Unit | | λref (?) : |
8657.45 | ------- | (Angstrom) |
| λmean (?) : |
8780.66 | ------- | (Angstrom) |
| λcen (?) : |
8642.73 | ------- | (Angstrom) |
| λeff (?) : |
8565.14 | ------- | (Angstrom) |
| λpeak (?) : |
8600.00 | ------- | (Angstrom) |
| λpivot (?) : |
8657.45 | ------- | (Angstrom) |
| λphot (?) : |
8644.41 | ------- | (Angstrom) |
| λmin (?) : |
7000.00 | ------- | (Angstrom) |
| λmax (?) : |
11800.00 | ------- | (Angstrom) |
| Weff (?) : |
2316.00 | ------- | (Angstrom) |
| FWHM (?) : |
2205.45 | ------- | (Angstrom) |
| Af/AV (?) : |
0.543 | ------- | () |
| Fsun (?) : |
------- | ------- | (erg/cm2/s/A) |
| Transmission
Data file: ascii, VOTable Transmission components: Filter | | Calibration properties
Vega System | Property | Specified | Calculated | Unit | | Zero Point (?) : |
------- |
9.32858e-10 | (erg/cm2/s/A) |
| |
------- |
2282.78 | (Jy) |
| ZP Type (?) : |
Pogson |
| PhotCal ID (?) : |
Generic/Johnson.I/Vega |
| |
AB System | Property | Specified | Calculated | Unit | | Zero Point (?) : |
------- |
1.48381e-9 | (erg/cm2/s/A) |
| |
------- |
3631.00 | (Jy) |
| ZP Type (?) : |
Pogson |
| PhotCal ID (?) : |
Generic/Johnson.I/AB |
| |
ST System | Property | Specified | Calculated | Unit | | Zero Point (?) : |
------- |
3.631e-9 | (erg/cm2/s/A) |
| |
------- |
8885.36 | (Jy) |
| ZP Type (?) : |
Pogson |
| PhotCal ID (?) : |
Generic/Johnson.I/ST |
| |
|
Filter added: 2010-04-17 05:58:56
Last update: 2020-08-30 19:07:49 | | Generic/Johnson.J | 12317.30 | 12487.81 | 12100.90 | 9693.00 | 15507.00 | 3193.55 | 1571.48 | 3.22e-10 | | | Johnson J | | Generic/Johnson.M | 49749.35 | 50311.43 | 48900.11 | 41250.00 | 62500.00 | 11279.52 | 146.72 | 1.84e-12 | | | Johnson M |
| Filter Plots
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|
© SVO, 8400 filters available, Last update: 2020-09-01 | 
 ≡ 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=8780.66471311&id=Generic/Johnson.I><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=8565.14405188&id=Generic/Johnson.I><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=8657.4536946085&id=Generic/Johnson.I><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=8644.40616174&id=Generic/Johnson.I><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=2315.99698866,8642.72727273,1&id=Generic/Johnson.I><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}
