|
| KPNO/KP4in.Gunn_u | 3444.01 | 3455.61 | 3454.34 | 3053.31 | 3850.00 | 488.44 | 1300.35 | 3.29e-9 | KPNO | KP4in | Gunn u | | KPNO/KP4in.Strom_u | 3529.94 | 3534.19 | 3533.34 | 3265.00 | 3800.00 | 277.54 | 1325.37 | 3.19e-9 | KPNO | KP4in | Stromgren u | | KPNO/KP4in.Strom_u | Filter Description | Filter ID (?) : | KPNO/KP4in.Strom_u |
| Description (?) : | Stromgren u |
| Phot.System (?) : | KP4in |
| Detector Type (?) : | Energy counter |
| Band Name (?) : | u |
| Obs. Facility (?) : | KPNO |
| Instrument (?) : | KP4in |
| Comments (?) : | Stromgren u UG11+WG345 |
| | Mathematical properties | Property | Calculated | Specified | Unit | | λref (?) : |
3529.94 | ------- | (Angstrom) |
| λmean (?) : |
3534.19 | ------- | (Angstrom) |
| λcen (?) : |
3534.38 | ------- | (Angstrom) |
| λeff (?) : |
3533.34 | ------- | (Angstrom) |
| λpeak (?) : |
3530.00 | ------- | (Angstrom) |
| λpivot (?) : |
3529.94 | ------- | (Angstrom) |
| λphot (?) : |
3536.25 | ------- | (Angstrom) |
| λmin (?) : |
3265.00 | ------- | (Angstrom) |
| λmax (?) : |
3800.00 | ------- | (Angstrom) |
| Weff (?) : |
277.54 | ------- | (Angstrom) |
| FWHM (?) : |
278.06 | ------- | (Angstrom) |
| Af/AV (?) : |
1.61 | ------- | () |
| Fsun (?) : |
100.40 | ------- | (erg/cm2/s/A) |
| Transmission
Data file: ascii, VOTable Reference for filter response:
KPNO 4Inch filters Transmission components: Filterid:KPNO/KP4in.Strom_u
You can download here the GaiaXPy base XML file for the full KPNO/KP4in 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 (?) : |
------- |
3.18876e-9 | (erg/cm2/s/A) |
| |
------- |
1325.37 | (Jy) |
| ZP Type (?) : |
Pogson |
| PhotCal ID (?) : |
KPNO/KP4in.Strom_u/Vega |
| |
AB System | Property | Specified | Calculated | Unit | | Zero Point (?) : |
------- |
8.73597e-9 | (erg/cm2/s/A) |
| |
------- |
3631.00 | (Jy) |
| ZP Type (?) : |
Pogson |
| PhotCal ID (?) : |
KPNO/KP4in.Strom_u/AB |
| |
ST System | Property | Specified | Calculated | Unit | | Zero Point (?) : |
------- |
3.631e-9 | (erg/cm2/s/A) |
| |
------- |
1509.18 | (Jy) |
| ZP Type (?) : |
Pogson |
| PhotCal ID (?) : |
KPNO/KP4in.Strom_u/ST |
| |
|
Filter added: 2011-10-18 05:31:04
Last update: 2021-07-27 20:05:16 | | KPNO/KP4in.Gunn_v | 3964.28 | 3978.40 | 4007.10 | 3524.65 | 4697.34 | 499.96 | 3390.14 | 6.47e-9 | KPNO | KP4in | Gunn v | | KPNO/KP4in.Strom_v | 4100.22 | 4101.39 | 4100.03 | 3932.34 | 4297.21 | 166.12 | 4181.47 | 7.46e-9 | KPNO | KP4in | Stromgren v | | KPNO/KP4in.Strom_b | 4726.21 | 4727.59 | 4723.25 | 4537.16 | 4941.07 | 197.14 | 4132.50 | 5.55e-9 | KPNO | KP4in | Stromgren b | | KPNO/KP4in.Gunn_g | 4941.61 | 4955.97 | 4929.14 | 4449.01 | 5529.21 | 707.16 | 3909.04 | 4.8e-9 | KPNO | KP4in | Gunn g | | KPNO/KP4in.Strom_y | 5504.67 | 5506.49 | 5502.92 | 5266.73 | 5755.67 | 246.01 | 3600.37 | 3.56e-9 | KPNO | KP4in | Stromgren y | | KPNO/KP4in.Gunn_r | 6485.40 | 6501.25 | 6467.68 | 5922.58 | 7275.36 | 745.78 | 2992.43 | 2.13e-9 | KPNO | KP4in | Gunn r | | KPNO/KP4in.Gunn_I | 8131.90 | 8160.87 | 8104.12 | 7281.66 | 9262.90 | 1271.36 | 2368.23 | 1.07e-9 | KPNO | KP4in | Gunn I | | KPNO/KP4in.Gunn_z | 10096.98 | 10250.91 | 9948.07 | 8147.89 | 12000.00 | 3463.50 | 2054.79 | 6.04e-10 | KPNO | KP4in | Gunn z |
|
| 
 ≡ 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=3534.1903260768&id=KPNO/KP4in.Strom_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=leff&val=3533.3371650352&id=KPNO/KP4in.Strom_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=3529.9443200803&id=KPNO/KP4in.Strom_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=3536.2485122973&id=KPNO/KP4in.Strom_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=277.53617469872,3534.3788748833,0.37665&id=KPNO/KP4in.Strom_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.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><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}
