|
| GCPD/Stromgren.u_ADPS | 3450.5 | 3447.5 | 3135 | 3790 | 372.4 | 1267.8 | | | Stromgren u filter in GCPD (ADPS) | | GCPD/Stromgren.u_ADPS | Filter Description | Filter ID (?) : | GCPD/Stromgren.u_ADPS |
| Description (?) : | Stromgren u filter in GCPD (ADPS) |
| Phot.System (?) : | Stromgren |
| Detector Type (?) : | Energy counter |
| Band Name (?) : | u |
| Obs. Facility (?) : | ------ |
| Instrument (?) : | ------ |
| Comments (?) : | ------ |
| | Mathematical properties | Property | Calculated | Specified | Unit | | λmean (?) : |
3450.55 | ------- | (Angstrom) |
| λcen (?) : |
3448.94 | ------- | (Angstrom) |
| λeff (?) : |
3447.49 | ------- | (Angstrom) |
| λpeak (?) : |
3400.00 | ------- | (Angstrom) |
| λpivot (?) : |
3443.58 | ------- | (Angstrom) |
| λphot (?) : |
3452.23 | ------- | (Angstrom) |
| λmin (?) : |
3134.62 | ------- | (Angstrom) |
| λmax (?) : |
3790.38 | ------- | (Angstrom) |
| Weff (?) : |
372.45 | ------- | (Angstrom) |
| FWHM (?) : |
377.11 | ------- | (Angstrom) |
| Af/AV (?) : |
1.65 | ------- | () |
| Transmission
Data file: ascii, VOTable | | Calibration properties
Vega System | Property | Specified | Calculated | Unit | | Zero Point (?) : |
------- |
3.198e-9 | (erg/cm2/s/A) |
| |
------- |
1267.81 | (Jy) |
| ZP Type (?) : |
Pogson |
| PhotCal ID (?) : |
GCPD/Stromgren.u_ADPS/Vega |
| |
AB System | Property | Specified | Calculated | Unit | | Zero Point (?) : |
------- |
9.159e-9 | (erg/cm2/s/A) |
| |
------- |
3631.00 | (Jy) |
| ZP Type (?) : |
Pogson |
| PhotCal ID (?) : |
GCPD/Stromgren.u_ADPS/AB |
| |
ST System | Property | Specified | Calculated | Unit | | Zero Point (?) : |
------- |
3.631e-9 | (erg/cm2/s/A) |
| |
------- |
1439.50 | (Jy) |
| ZP Type (?) : |
Pogson |
| PhotCal ID (?) : |
GCPD/Stromgren.u_ADPS/ST |
| |
|
Filter added: 2014-12-07 03:24:45
Last update: 2018-03-21 17:34:01 | | GCPD/Stromgren.u | 3485.0 | 3485.0 | 3173 | 3810 | 362.9 | 4748.0 | | | Stromgren u filter in GCPD (revised by Mann & von Braun 2014) | | GCPD/Stromgren.v_ADPS | 4107.9 | 4108.1 | 3750 | 4425 | 223.2 | 4120.6 | | | Stromgren v filter in GCPD (ADPS) | | GCPD/Stromgren.v | 4125.0 | 4125.0 | 3786 | 4512 | 233.4 | 4932.8 | | | Stromgren v filter in GCPD (revised by Mann & von Braun 2014) | | GCPD/Stromgren.b_ADPS | 4669.1 | 4663.3 | 4325 | 4947 | 202.1 | 4180.5 | | | Stromgren b filter in GCPD (ADPS) | | GCPD/Stromgren.b | 4671.0 | 4671.0 | 4398 | 4898 | 166.3 | 4347.7 | | | Stromgren b filter in GCPD (revised by Mann & von Braun 2014) | | GCPD/Stromgren.y | 5474.0 | 5474.0 | 5044 | 5957 | 357.7 | 3776.2 | | | Stromgren y filter in GCPD (revised by Mann & von Braun 2014) | | GCPD/Stromgren.y_ADPS | 5478.3 | 5472.7 | 5152 | 5822 | 253.1 | 3609.3 | | | Stromgren y filter in GCPD (ADPS) |
| Filter Plots
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© SVO, 5630 filters available, Last update: 2020-01-23 | 
 ≡ 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}
</b><br><table cellpadding=20><td class=helptd>Zero Point in Vega System.<p>Calculated by the service as:<p><img src=images/latex/zp.png> <p>where:<p> T(λ) ≡ 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>eff</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<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=3450.5456332095&id=GCPD/Stromgren.u_ADPS><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=3447.493853162&id=GCPD/Stromgren.u_ADPS><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=3443.582804885&id=GCPD/Stromgren.u_ADPS><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=3452.2329101387&id=GCPD/Stromgren.u_ADPS><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=372.44884591836,3448.9448051948,1&id=GCPD/Stromgren.u_ADPS><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>eff</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> Vg(λ) ≡ Vega spectrum<p>F<sub>0,ν</sub>(Jy) = (2.9979246)<sup>-1</sup> 10<sup>5</sup> * λ<sub>eff</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}