|
| LaSilla/COMBO17.U | 3652.67 | 3660.41 | 3692.10 | 3262.02 | 3998.78 | 354.81 | 1723.63 | 3.87e-9 | LaSilla | WFI | U WFI filter for COMBO-17 | | LaSilla/COMBO17.420m | 4179.71 | 4182.71 | 4179.07 | 3970.75 | 4418.29 | 261.44 | 4304.49 | 7.39e-9 | LaSilla | WFI | 420/30 WFI filter for COMBO-17 | | LaSilla/COMBO17.B | 4572.59 | 4599.59 | 4553.48 | 3940.89 | 5122.43 | 831.35 | 4097.53 | 5.88e-9 | LaSilla | WFI | B WFI filter for COMBO-17 | | LaSilla/COMBO17.464nm | 4617.27 | 4617.89 | 4616.88 | 4508.46 | 4739.39 | 131.97 | 4269.47 | 6.0e-9 | LaSilla | WFI | 465/15 WFI filter for COMBO-17 | | LaSilla/COMBO17.485nm | 4860.31 | 4863.04 | 4857.32 | 4650.41 | 5094.21 | 309.33 | 3834.93 | 4.87e-9 | LaSilla | WFI | 486/30 WFI filter for COMBO-17 | | LaSilla/COMBO17.518nm | 5188.55 | 5189.32 | 5187.70 | 5060.03 | 5330.48 | 163.95 | 3809.54 | 4.24e-9 | LaSilla | WFI | 518/16 WFI filter for COMBO-17 | | LaSilla/COMBO17.V | 5370.88 | 5390.12 | 5353.10 | 4830.31 | 5963.66 | 815.90 | 3690.30 | 3.84e-9 | LaSilla | WFI | V WFI filter for COMBO-17 | | LaSilla/COMBO17.571nm | 5717.19 | 5718.79 | 5715.61 | 5536.47 | 5923.36 | 240.55 | 3470.27 | 3.18e-9 | LaSilla | WFI | 571/24 WFI filter for COMBO-17 | | LaSilla/COMBO17.604nm | 6044.97 | 6045.98 | 6043.87 | 5893.11 | 6194.90 | 196.69 | 3269.66 | 2.68e-9 | LaSilla | WFI | 605/21 WFI filter for COMBO-17 | | LaSilla/COMBO17.646nm | 6451.85 | 6453.34 | 6447.07 | 6286.44 | 6636.12 | 246.83 | 2949.80 | 2.12e-9 | LaSilla | WFI | 646/27 WFI filter for COMBO-17 | | LaSilla/COMBO17.R | 6466.42 | 6517.80 | 6411.63 | 5562.24 | 7646.82 | 1518.80 | 3041.77 | 2.18e-9 | LaSilla | WFI | R WFI filter for COMBO-17 | | LaSilla/COMBO17.696nm | 6959.48 | 6960.34 | 6958.53 | 6812.76 | 7117.82 | 195.71 | 2812.33 | 1.74e-9 | LaSilla | WFI | 696/23 WFI filter for COMBO-17 | | LaSilla/COMBO17.753nm | 7531.04 | 7531.81 | 7530.17 | 7348.07 | 7719.35 | 189.46 | 2566.43 | 1.36e-9 | LaSilla | WFI | 752/20 WFI filter for COMBO-17 | | LaSilla/COMBO17.815nm | 8157.78 | 8158.75 | 8156.62 | 7949.85 | 8391.00 | 219.91 | 2335.40 | 1.05e-9 | LaSilla | WFI | 816/24 WFI filter for COMBO-17 | | LaSilla/COMBO17.855nm | 8557.07 | 8557.85 | 8556.60 | 8249.71 | 8806.00 | 156.12 | 2224.84 | 9.11e-10 | LaSilla | WFI | 856/14 WFI filter for COMBO-17 | | LaSilla/COMBO17.855nm | Filter Description | Filter ID (?) : | LaSilla/COMBO17.855nm |
| Description (?) : | 856/14 WFI filter for COMBO-17 |
| Phot.System (?) : | COMBO-17 |
| Detector Type (?) : | Photon counter |
| Band Name (?) : | ------ |
| Obs. Facility (?) : | LaSilla |
| Instrument (?) : | WFI |
| Comments (?) : | Full instrument transmission |
| | Mathematical properties | Property | Calculated | Specified | Unit | | λref (?) : |
8557.07 | ------- | (Angstrom) |
| λmean (?) : |
8557.85 | ------- | (Angstrom) |
| λcen (?) : |
8561.02 | ------- | (Angstrom) |
| λeff (?) : |
8556.60 | ------- | (Angstrom) |
| λpeak (?) : |
8553.00 | ------- | (Angstrom) |
| λpivot (?) : |
8557.07 | ------- | (Angstrom) |
| λphot (?) : |
8557.13 | ------- | (Angstrom) |
| λmin (?) : |
8249.71 | ------- | (Angstrom) |
| λmax (?) : |
8806.00 | ------- | (Angstrom) |
| Weff (?) : |
156.12 | ------- | (Angstrom) |
| FWHM (?) : |
143.08 | ------- | (Angstrom) |
| Af/AV (?) : |
0.544 | ------- | () |
| Fsun (?) : |
98.04 | ------- | (erg/cm2/s/A) |
| Transmission
Data file: ascii, VOTable Reference for filter response:
The COMBO-17 survey Transmission components: Filter + Instrumentid:LaSilla/COMBO17.855nm
You can download here the GaiaXPy base XML file for the full LaSilla/COMBO17 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 (?) : |
------- |
9.10897e-10 | (erg/cm2/s/A) |
| |
------- |
2224.84 | (Jy) |
| ZP Type (?) : |
Pogson |
| PhotCal ID (?) : |
LaSilla/COMBO17.855nm/Vega |
| |
AB System | Property | Specified | Calculated | Unit | | Zero Point (?) : |
------- |
1.48661e-9 | (erg/cm2/s/A) |
| |
------- |
3631.00 | (Jy) |
| ZP Type (?) : |
Pogson |
| PhotCal ID (?) : |
LaSilla/COMBO17.855nm/AB |
| |
ST System | Property | Specified | Calculated | Unit | | Zero Point (?) : |
------- |
3.631e-9 | (erg/cm2/s/A) |
| |
------- |
8868.61 | (Jy) |
| ZP Type (?) : |
Pogson |
| PhotCal ID (?) : |
LaSilla/COMBO17.855nm/ST |
| |
|
Filter added: 2020-01-26 16:24:15
Last update: 2021-07-27 20:06:18 | | LaSilla/COMBO17.I | 8553.80 | 8602.26 | 8523.43 | 7432.44 | 9771.00 | 1492.70 | 2300.06 | 9.42e-10 | LaSilla | WFI | I WFI filter for COMBO-17 | | LaSilla/COMBO17.915nm | 9140.89 | 9142.32 | 9139.72 | 8875.88 | 9435.74 | 263.53 | 2254.38 | 8.09e-10 | LaSilla | WFI | 914/27 WFI filter for COMBO-17 |
|
| 
 ≡ 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=8557.8496799736&id=LaSilla/COMBO17.855nm><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=8556.6009346208&id=LaSilla/COMBO17.855nm><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=8557.0708778629&id=LaSilla/COMBO17.855nm><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=8557.1263260861&id=LaSilla/COMBO17.855nm><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=156.11767474445,8561.0201239341,1&id=LaSilla/COMBO17.855nm><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}
