Gemini :Gemini Observatory Gemini/Michelle :Filters used in Michelle, a mid-infrared (7-26 micron) imager and spectrometer, formerly in use at UKIRT but now on long-term loan at Gemini. id:Gemini/Michelle.a |
| Gemini/Michelle.Si1 | 77098.24 | 77187.88 | 76967.08 | 72000.00 | 82614.44 | 6870.34 | 62.36 | 3.15e-13 | Gemini | Michelle | Michelle Si1, I79B10 | | Gemini/Michelle.Si2 | 88005.08 | 88128.41 | 87804.80 | 82000.00 | 95000.00 | 8237.97 | 48.52 | 1.88e-13 | Gemini | Michelle | Michelle Si2, I88B10 | | Gemini/Michelle.Si2 | Filter Description | Filter ID (?) : | Gemini/Michelle.Si2 |
| Description (?) : | Michelle Si2, I88B10 |
| Phot.System (?) : | Michelle |
| Detector Type (?) : | Energy counter |
| Band Name (?) : | ------ |
| Obs. Facility (?) : | Gemini |
| Instrument (?) : | Michelle |
| Comments (?) : | ------ |
| | Mathematical properties | Property | Calculated | Specified | Unit | | λref (?) : |
88005.08 | ------- | (Angstrom) |
| λmean (?) : |
88128.41 | ------- | (Angstrom) |
| λcen (?) : |
88086.38 | ------- | (Angstrom) |
| λeff (?) : |
87804.80 | ------- | (Angstrom) |
| λpeak (?) : |
85000.00 | ------- | (Angstrom) |
| λpivot (?) : |
88005.08 | ------- | (Angstrom) |
| λphot (?) : |
87886.53 | ------- | (Angstrom) |
| λmin (?) : |
82000.00 | ------- | (Angstrom) |
| λmax (?) : |
95000.00 | ------- | (Angstrom) |
| Weff (?) : |
8237.97 | ------- | (Angstrom) |
| FWHM (?) : |
8726.12 | ------- | (Angstrom) |
| Af/AV (?) : |
0.0638 | ------- | () |
| Fsun (?) : |
0.0404 | ------- | (erg/cm2/s/A) |
| Transmission
Data file: ascii, VOTable Reference for filter response:
Gemini: Michelle Transmission components: Filterid:Gemini/Michelle.Si2 | | Calibration properties
Vega System | Property | Specified | Calculated | Unit | | Zero Point (?) : |
------- |
1.87831e-13 | (erg/cm2/s/A) |
| |
------- |
48.52 | (Jy) |
| ZP Type (?) : |
Pogson |
| PhotCal ID (?) : |
Gemini/Michelle.Si2/Vega |
| |
AB System | Property | Specified | Calculated | Unit | | Zero Point (?) : |
------- |
1.4055e-11 | (erg/cm2/s/A) |
| |
------- |
3631.00 | (Jy) |
| ZP Type (?) : |
Pogson |
| PhotCal ID (?) : |
Gemini/Michelle.Si2/AB |
| |
ST System | Property | Specified | Calculated | Unit | | Zero Point (?) : |
------- |
3.631e-9 | (erg/cm2/s/A) |
| |
------- |
938039.20 | (Jy) |
| ZP Type (?) : |
Pogson |
| PhotCal ID (?) : |
Gemini/Michelle.Si2/ST |
| |
|
Filter added: 2011-10-18 04:41:44
Last update: 2021-07-27 19:13:39 | | Gemini/Michelle.Si3 | 96675.26 | 96802.23 | 96475.97 | 90000.00 | 104000.00 | 9362.64 | 40.38 | 1.3e-13 | Gemini | Michelle | Michelle Si3, I97B10 | | Gemini/Michelle.Si4 | 102618.92 | 102757.08 | 102385.67 | 96000.00 | 111000.00 | 9845.30 | 35.93 | 1.02e-13 | Gemini | Michelle | Michelle Si4, I103B10 | | Gemini/Michelle.N | 101086.04 | 104836.55 | 95310.79 | 75000.00 | 135000.00 | 52642.86 | 40.44 | 1.19e-13 | Gemini | Michelle | Michelle N, I105B53 | | Gemini/Michelle.Np | 112385.82 | 113040.26 | 111323.73 | 97878.18 | 127916.89 | 23168.82 | 30.45 | 7.23e-14 | Gemini | Michelle | Michelle Np, I112B21 | | Gemini/Michelle.Si5 | 116708.68 | 116859.02 | 116473.49 | 109000.00 | 125000.00 | 10510.18 | 27.93 | 6.15e-14 | Gemini | Michelle | Michelle Si5, I116B9 | | Gemini/Michelle.Si6 | 124701.08 | 124857.43 | 124444.07 | 116286.36 | 133500.00 | 10857.55 | 24.52 | 4.73e-14 | Gemini | Michelle | Michelle Si6, I125B9 | | Gemini/Michelle.Qa | 180762.16 | 181041.99 | 180299.89 | 167951.30 | 195285.34 | 19451.41 | 11.80 | 1.08e-14 | Gemini | Michelle | Michelle Qa, I185B9 | | Gemini/Michelle.Q | 203372.62 | 208530.52 | 195498.62 | 156421.04 | 284646.42 | 80391.85 | 9.91 | 7.18e-15 | Gemini | Michelle | Michelle Q, I209B42 |
|
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 ≡ 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=88128.407200869&id=Gemini/Michelle.Si2><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=87804.799267026&id=Gemini/Michelle.Si2><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=88005.076147141&id=Gemini/Michelle.Si2><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=87886.526270168&id=Gemini/Michelle.Si2><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=8237.9718029715,88086.383174209,0.83&id=Gemini/Michelle.Si2><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}
