|
| OSN/Stromgren.u2 | 3422.95 | 3427.40 | 3424.88 | 3186.25 | 3729.31 | 280.31 | 1271.53 | 3.25e-9 | OSN | | u stromgren, OSN #s07 | | OSN/Stromgren.u2 | Filter Description | Filter ID (?) : | OSN/Stromgren.u2 |
| Description (?) : | u stromgren, OSN #s07 |
| Phot.System (?) : | Stromgren |
| Detector Type (?) : | Photon counter |
| Band Name (?) : | u |
| Obs. Facility (?) : | OSN |
| Instrument (?) : | ------ |
| Comments (?) : | size (50, 50, 7) |
| | Mathematical properties | Property | Calculated | Specified | Unit | | λref (?) : |
3422.95 | ------- | (Angstrom) |
| λmean (?) : |
3427.40 | ------- | (Angstrom) |
| λcen (?) : |
3424.60 | ------- | (Angstrom) |
| λeff (?) : |
3424.88 | ------- | (Angstrom) |
| λpeak (?) : |
3364.00 | ------- | (Angstrom) |
| λpivot (?) : |
3422.95 | ------- | (Angstrom) |
| λphot (?) : |
3427.86 | ------- | (Angstrom) |
| λmin (?) : |
3186.25 | ------- | (Angstrom) |
| λmax (?) : |
3729.31 | ------- | (Angstrom) |
| Weff (?) : |
280.31 | ------- | (Angstrom) |
| FWHM (?) : |
293.78 | ------- | (Angstrom) |
| Af/AV (?) : |
1.66 | ------- | () |
| Fsun (?) : |
97.31 | ------- | (erg/cm2/s/A) |
| Transmission
Data file: ascii, VOTable Reference for filter response:
OSN Transmission components: Filterid:OSN/Stromgren.u2
You can download here the GaiaXPy base XML file for the full OSN/Stromgren filter set.
Please, take a look to GaiaXPy documentation for more information. - GaiaXPy base XML file. | | Calibration properties
Vega System | Property | Specified | Calculated | Unit | | Zero Point (?) : |
------- |
3.25348e-9 | (erg/cm2/s/A) |
| |
------- |
1271.53 | (Jy) |
| ZP Type (?) : |
Pogson |
| PhotCal ID (?) : |
OSN/Stromgren.u2/Vega |
| |
AB System | Property | Specified | Calculated | Unit | | Zero Point (?) : |
------- |
9.29064e-9 | (erg/cm2/s/A) |
| |
------- |
3631.00 | (Jy) |
| ZP Type (?) : |
Pogson |
| PhotCal ID (?) : |
OSN/Stromgren.u2/AB |
| |
ST System | Property | Specified | Calculated | Unit | | Zero Point (?) : |
------- |
3.631e-9 | (erg/cm2/s/A) |
| |
------- |
1419.08 | (Jy) |
| ZP Type (?) : |
Pogson |
| PhotCal ID (?) : |
OSN/Stromgren.u2/ST |
| |
|
Filter added: 2020-01-15 13:17:38
Last update: 2021-07-27 20:26:57 | | OSN/Stromgren.u | 3496.66 | 3500.12 | 3498.12 | 3295.70 | 3708.90 | 266.92 | 1300.87 | 3.19e-9 | OSN | | u stromgren, OSN #s01 | | OSN/Stromgren.v | 4114.52 | 4116.05 | 4114.85 | 3965.79 | 4277.83 | 210.72 | 4297.79 | 7.61e-9 | OSN | | v stromgren, OSN #s02 | | OSN/Stromgren.v_z3 | 4128.36 | 4129.87 | 4130.00 | 3941.99 | 4323.68 | 191.98 | 4245.36 | 7.47e-9 | OSN | | v stromgren, zone 3, OSN #s08 | | OSN/Stromgren.v_z2 | 4129.83 | 4131.34 | 4131.49 | 3949.55 | 4322.62 | 197.96 | 4255.37 | 7.48e-9 | OSN | | v stromgren, zone 2, OSN #s08 | | OSN/Stromgren.v_z1 | 4130.43 | 4131.96 | 4132.12 | 3953.64 | 4326.37 | 199.33 | 4257.20 | 7.48e-9 | OSN | | v stromgren, zone 1, OSN #s08 | | OSN/Stromgren.b | 4677.82 | 4678.84 | 4676.84 | 4545.85 | 4817.20 | 177.18 | 4227.52 | 5.79e-9 | OSN | | b stromgren, OSN #s03 | | OSN/Stromgren.b_z1 | 4725.28 | 4726.66 | 4722.43 | 4541.78 | 4912.36 | 197.62 | 4136.11 | 5.55e-9 | OSN | | b stromgren, zone 1, OSN #s09 | | OSN/Stromgren.b_z2 | 4727.13 | 4728.50 | 4724.06 | 4543.21 | 4914.06 | 194.01 | 4127.27 | 5.54e-9 | OSN | | b stromgren, zone 2, OSN #s09 | | OSN/Stromgren.Hbetan | 4863.24 | 4863.30 | 4863.43 | 4817.04 | 4911.25 | 30.87 | 2674.04 | 3.39e-9 | OSN | | Hbeta (n) stromgren, OSN #s06 | | OSN/Stromgren.Hbetaw | 4862.15 | 4863.59 | 4860.64 | 4679.59 | 5063.54 | 205.59 | 3733.93 | 4.74e-9 | OSN | | Hbeta (w) stromgren, OSN #s05 | | OSN/Stromgren.Hbetan_z1 | 4879.31 | 4879.36 | 4881.14 | 4833.88 | 4922.95 | 32.20 | 3163.20 | 3.98e-9 | OSN | | Hbeta(n) stromgren, zone 1, OSN #s12 | | OSN/Stromgren.Hbetan_z2 | 4882.13 | 4882.21 | 4883.89 | 4803.49 | 4950.00 | 34.06 | 3303.01 | 4.15e-9 | OSN | | Hbeta(n) stromgren, zone 2, OSN #s12 | | OSN/Stromgren.Hbetaw_z1 | 4885.89 | 4886.24 | 4889.11 | 4783.21 | 4992.93 | 102.60 | 3417.97 | 4.29e-9 | OSN | | Hbeta(w) stromgren, zone 1, OSN #s11 | | OSN/Stromgren.Hbetaw_z2 | 4887.02 | 4887.38 | 4890.40 | 4784.36 | 4995.60 | 102.79 | 3419.89 | 4.29e-9 | OSN | | Hbeta(w) stromgren, zone 2, OSN #s11 | | OSN/Stromgren.Hbetaw_z3 | 4894.30 | 4894.71 | 4898.14 | 4786.87 | 5011.17 | 102.03 | 3476.20 | 4.35e-9 | OSN | | Hbeta(w) stromgren, zone 3, OSN #s11 | | OSN/Stromgren.y | 5502.37 | 5503.52 | 5501.29 | 5354.27 | 5645.54 | 208.49 | 3602.00 | 3.57e-9 | OSN | | y stromgren, OSN #s04 | | OSN/Stromgren.y_z1 | 5504.89 | 5506.22 | 5503.62 | 5262.18 | 5684.94 | 200.66 | 3600.28 | 3.56e-9 | OSN | | y stromgren, zone 1, OSN #s10 | | OSN/Stromgren.y_z2 | 5512.78 | 5514.12 | 5511.48 | 5271.71 | 5703.65 | 197.29 | 3595.47 | 3.55e-9 | OSN | | y stromgren, zone 2, OSN #s10 |
|
|
 ≡ 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=3427.3960028618&id=OSN/Stromgren.u2><p>Filter transmission is transformed to "<i>energy counter</i>" for these calculations, that is, the photon count transmission is multiplied by λ and normalized so that peak transmission is equal to 1.<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=3424.8818015241&id=OSN/Stromgren.u2><p>Filter transmission is transformed to "<i>energy counter</i>" for these calculations, that is, the photon count transmission is multiplied by λ and normalized so that peak transmission is equal to 1.<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=3422.9504064801&id=OSN/Stromgren.u2><p>Filter transmission is transformed to "<i>energy counter</i>" for these calculations, that is, the photon count transmission is multiplied by λ and normalized so that peak transmission is equal to 1.<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=3427.8627816602&id=OSN/Stromgren.u2><p>Filter transmission is transformed to "<i>energy counter</i>" for these calculations, that is, the photon count transmission is multiplied by λ and normalized so that peak transmission is equal to 1.<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=280.30532183771,3424.6018821392,1&id=OSN/Stromgren.u2><p>Filter transmission is transformed to "<i>energy counter</i>" for these calculations, that is, the photon count transmission is multiplied by λ and normalized so that peak transmission is equal to 1.<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>Filter transmission is transformed to "<i>energy counter</i>" for these calculations, that is, the photon count transmission is multiplied by λ and normalized so that peak transmission is equal to 1.<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>Filter transmission is transformed to \"<i>energy counter</i>\" for these calculations, that is, the photon count transmission is multiplied by λ and normalized so that peak transmission is equal to 1.<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}
