|
| CAHA/LAICA.SDSS_u | 3536.99 | 3553.63 | 3564.44 | 3033.00 | 3998.75 | 528.33 | 1421.01 | 3.41e-9 | CAHA | LAICA | LAICA SDSS u | | CAHA/LAICA.SDSS_u | Filter Description | Filter ID (?) : | CAHA/LAICA.SDSS_u |
| Description (?) : | LAICA SDSS u |
| Phot.System (?) : | LAICA |
| Detector Type (?) : | Energy counter |
| Band Name (?) : | u |
| Obs. Facility (?) : | CAHA |
| Instrument (?) : | LAICA |
| Comments (?) : | ------ |
| | Mathematical properties | Property | Calculated | Specified | Unit | | λref (?) : |
3536.99 | ------- | (Angstrom) |
| λmean (?) : |
3553.63 | ------- | (Angstrom) |
| λcen (?) : |
3551.19 | ------- | (Angstrom) |
| λeff (?) : |
3564.44 | ------- | (Angstrom) |
| λpeak (?) : |
3700.00 | ------- | (Angstrom) |
| λpivot (?) : |
3536.99 | ------- | (Angstrom) |
| λphot (?) : |
3576.52 | ------- | (Angstrom) |
| λmin (?) : |
3033.00 | ------- | (Angstrom) |
| λmax (?) : |
3998.75 | ------- | (Angstrom) |
| Weff (?) : |
528.33 | ------- | (Angstrom) |
| FWHM (?) : |
602.38 | ------- | (Angstrom) |
| Af/AV (?) : |
1.61 | ------- | () |
| Fsun (?) : |
107.98 | ------- | (erg/cm2/s/A) |
| Transmission
Data file: ascii, VOTable Reference for filter response:
CAHA: LAICA manual Transmission components: Filterid:CAHA/LAICA.SDSS_u
You can download here the GaiaXPy base XML file for the full CAHA/LAICA 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 (?) : |
------- |
3.40527e-9 | (erg/cm2/s/A) |
| |
------- |
1421.01 | (Jy) |
| ZP Type (?) : |
Pogson |
| PhotCal ID (?) : |
CAHA/LAICA.SDSS_u/Vega |
| |
AB System | Property | Specified | Calculated | Unit | | Zero Point (?) : |
------- |
8.7012e-9 | (erg/cm2/s/A) |
| |
------- |
3631.00 | (Jy) |
| ZP Type (?) : |
Pogson |
| PhotCal ID (?) : |
CAHA/LAICA.SDSS_u/AB |
| |
ST System | Property | Specified | Calculated | Unit | | Zero Point (?) : |
------- |
3.631e-9 | (erg/cm2/s/A) |
| |
------- |
1515.21 | (Jy) |
| ZP Type (?) : |
Pogson |
| PhotCal ID (?) : |
CAHA/LAICA.SDSS_u/ST |
| |
|
Filter added: 2010-04-17 05:58:56
Last update: 2021-07-27 18:46:01 | | CAHA/LAICA.Johnson_U | 3668.54 | 3679.47 | 3718.47 | 3214.50 | 4113.00 | 472.31 | 1708.71 | 3.81e-9 | CAHA | LAICA | LAICA Johnson U | | CAHA/LAICA.Johnson_B | 4087.58 | 4153.63 | 4213.68 | 3209.93 | 5691.00 | 1285.03 | 3050.88 | 5.47e-9 | CAHA | LAICA | LAICA Johnson B | | CAHA/LAICA.Johnson_B2 | 4240.75 | 4328.63 | 4345.61 | 3224.33 | 5898.33 | 1443.56 | 3267.89 | 5.45e-9 | CAHA | LAICA | LAICA Johnson B2 | | CAHA/LAICA.SDSS_g | 4886.42 | 4926.35 | 4857.35 | 4152.67 | 5694.44 | 1128.69 | 3939.61 | 4.95e-9 | CAHA | LAICA | LAICA SDSS g | | CAHA/LAICA.Johnson_V | 5468.05 | 5517.03 | 5425.48 | 4615.80 | 7084.00 | 1144.11 | 3621.80 | 3.63e-9 | CAHA | LAICA | LAICA Johnson V | | CAHA/LAICA.SDSS_r | 6230.07 | 6269.87 | 6187.41 | 5419.30 | 7183.44 | 1361.58 | 3177.18 | 2.45e-9 | CAHA | LAICA | LAICA SDSS r | | CAHA/LAICA.Johnson_R | 6538.63 | 6607.58 | 6466.18 | 5515.33 | 7876.00 | 1843.37 | 3029.90 | 2.12e-9 | CAHA | LAICA | LAICA Johnson R | | CAHA/LAICA.SDSS_i | 7703.45 | 7743.62 | 7658.50 | 6792.50 | 8788.75 | 1489.59 | 2513.62 | 1.27e-9 | CAHA | LAICA | LAICA SDSS i | | CAHA/LAICA.Johnson_I | 8837.01 | 8907.02 | 8799.19 | 7418.70 | 9990.00 | 2137.20 | 2298.06 | 8.82e-10 | CAHA | LAICA | LAICA Johnson I | | CAHA/LAICA.SDSS_z | 9092.68 | 9138.44 | 9068.08 | 7860.00 | 9990.00 | 1677.78 | 2201.28 | 7.98e-10 | CAHA | LAICA | LAICA SDSS 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=3553.6277704885&id=CAHA/LAICA.SDSS_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=3564.4385326261&id=CAHA/LAICA.SDSS_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=3536.9896170218&id=CAHA/LAICA.SDSS_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=3576.5236963398&id=CAHA/LAICA.SDSS_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=528.33341481499,3551.1904761905,0.33&id=CAHA/LAICA.SDSS_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}
