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. |
| Gemini/Michelle.Si1 | 77098.24 | 77187.88 | 76965.06 | 72000.00 | 82614.44 | 6870.35 | 63.92 | 3.23e-13 | Gemini | Michelle | Michelle Si1, I79B10 | | Gemini/Michelle.Si2 | 88005.08 | 88128.41 | 87808.32 | 82000.00 | 95000.00 | 8237.92 | 49.61 | 1.93e-13 | Gemini | Michelle | Michelle Si2, I88B10 | | Gemini/Michelle.Si3 | 96675.15 | 96802.10 | 96465.73 | 90000.00 | 104000.00 | 9361.65 | 41.38 | 1.33e-13 | Gemini | Michelle | Michelle Si3, I97B10 | | Gemini/Michelle.Si4 | 102618.91 | 102757.07 | 102394.51 | 96000.00 | 111000.00 | 9845.30 | 36.82 | 1.05e-13 | Gemini | Michelle | Michelle Si4, I103B10 | | Gemini/Michelle.Si4 | Filter Description | Filter ID (?) : | Gemini/Michelle.Si4 |
| Description (?) : | Michelle Si4, I103B10 |
| Phot.System (?) : | Michelle |
| Detector Type (?) : | Energy counter |
| Band Name (?) : | ------ |
| Obs. Facility (?) : | Gemini |
| Instrument (?) : | Michelle |
| Comments (?) : | This filter used to have a small long-wavelength leak that was fixed during semester 2005B by inserting BaF2 blocking elements (which were already in place in the other silicate filters). The effect on photometry of sources with T>140K (N-Q<-4) was negligible. |
| | Mathematical properties | Property | Calculated | Specified | Unit | | λref (?) : |
102618.91 | ------- | (Angstrom) |
| λmean (?) : |
102757.07 | ------- | (Angstrom) |
| λcen (?) : |
102728.95 | ------- | (Angstrom) |
| λeff (?) : |
102394.51 | ------- | (Angstrom) |
| λpeak (?) : |
105000.00 | ------- | (Angstrom) |
| λpivot (?) : |
102618.91 | ------- | (Angstrom) |
| λphot (?) : |
102486.24 | ------- | (Angstrom) |
| λmin (?) : |
96000.00 | ------- | (Angstrom) |
| λmax (?) : |
111000.00 | ------- | (Angstrom) |
| Weff (?) : |
9845.30 | ------- | (Angstrom) |
| FWHM (?) : |
10147.79 | ------- | (Angstrom) |
| Af/AV (?) : |
0.0686 | ------- | () |
| Fsun (?) : |
------- | ------- | (erg/cm2/s/A) |
| Transmission
Data file: ascii, VOTable Reference for filter response:
Gemini: Michelle Transmission components: Filter | | Calibration properties
Vega System | Property | Specified | Calculated | Unit | | Zero Point (?) : |
------- |
1.0527e-13 | (erg/cm2/s/A) |
| |
------- |
36.82 | (Jy) |
| ZP Type (?) : |
Pogson |
| PhotCal ID (?) : |
Gemini/Michelle.Si4/Vega |
| |
AB System | Property | Specified | Calculated | Unit | | Zero Point (?) : |
------- |
1.03823e-11 | (erg/cm2/s/A) |
| |
------- |
3631.00 | (Jy) |
| ZP Type (?) : |
Pogson |
| PhotCal ID (?) : |
Gemini/Michelle.Si4/AB |
| |
ST System | Property | Specified | Calculated | Unit | | Zero Point (?) : |
------- |
3.631e-9 | (erg/cm2/s/A) |
| |
------- |
1269868.78 | (Jy) |
| ZP Type (?) : |
Pogson |
| PhotCal ID (?) : |
Gemini/Michelle.Si4/ST |
| |
|
Filter added: 2011-10-18 04:41:44
Last update: 2020-08-30 19:07:49 | | Gemini/Michelle.N | 101086.04 | 104836.55 | 95374.97 | 75000.00 | 135000.00 | 52642.86 | 36.99 | 1.22e-13 | Gemini | Michelle | Michelle N, I105B53 | | Gemini/Michelle.Np | 112385.82 | 113040.26 | 111324.09 | 97878.18 | 127916.89 | 23168.83 | 30.70 | 7.43e-14 | Gemini | Michelle | Michelle Np, I112B21 | | Gemini/Michelle.Si5 | 116708.63 | 116858.97 | 116460.56 | 109000.00 | 125000.00 | 10510.06 | 28.61 | 6.32e-14 | Gemini | Michelle | Michelle Si5, I116B9 | | Gemini/Michelle.Si6 | 124701.08 | 124857.43 | 124444.49 | 116286.36 | 133500.00 | 10857.60 | 25.12 | 4.86e-14 | Gemini | Michelle | Michelle Si6, I125B9 | | Gemini/Michelle.Qa | 180762.16 | 181041.99 | 180290.98 | 167951.30 | 195285.34 | 19451.40 | 12.08 | 1.11e-14 | Gemini | Michelle | Michelle Qa, I185B9 | | Gemini/Michelle.Q | 203372.69 | 208530.58 | 195515.51 | 156421.04 | 284646.42 | 80391.74 | 9.42 | 7.38e-15 | Gemini | Michelle | Michelle Q, I209B42 |
|
© SVO, 8400 filters available, Last update: 2020-09-01 | 
 ≡ filter transmission<p><u>Property info:</u><ul><li><b>Unit</b>:Angstrom<li><b>UCD</b>:em.wl<li><b>Utype</b>: <i>photdm:PhotometryFilter.SpectralAxis.Coverage.Location.Value</i></ul></td></table>',WIDTH,400)){kind=link}
 ≡ filter transmission<br> Vg(λ) ≡ Vega spectrum<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.SpectralAxis.Coverage.Bounds.Extent</i></ul></td></table>',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>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<br> Vg(λ) ≡ Vega spectrum<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>Utype</b>: <i>photdm:PhotometricSystem.detectorType</i></ul></td></table>',WIDTH,400)){kind=link}
 ≡ filter transmission<p><img src=showgraph.php?what=lmean&val=102757.07293&id=Gemini/Michelle.Si4><p><u>Property info:</u><ul><li><b>Unit</b>:Angstrom<li><b>UCD</b>:em.wl<li><b>Utype</b>: <i>photdm:PhotometryFilter.SpectralAxis.Coverage.Location.Value</i></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=102394.50511&id=Gemini/Michelle.Si4><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=102618.91487157&id=Gemini/Michelle.Si4><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=102486.235913&id=Gemini/Michelle.Si4><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=9845.30103788,102728.949854,0.81&id=Gemini/Michelle.Si4><p><u>Property info:</u><ul><li><b>Unit</b>:Angstrom<li><b>UCD</b>:instr.bandwidth<li><b>Utype</b>: <i>photdm:PhotometryFilter.SpectralAxis.Coverage.Bounds.Extent</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/extinctionlaw.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>Sun spectrum from calspec database: sun_reference_stis_002 with sun_mod_001 for larger wavelengths.<p><img src=images/sunspec.png><p><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>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}