Gemini :Gemini Observatory Gemini/TReCS :Filters used in T-ReCS (Thermal-Region Camera Spectrograph), a mid-infrared imager and long-slit spectrograph built by the University of Florida for Gemini South |
| Gemini/TReCS.k | 21888.6 | 21621.9 | 19002 | 25054 | 4026.0 | 655.0 | Gemini | TReCS | TReCS k | | Gemini/TReCS.l | 38457.1 | 38154.3 | 34610 | 42086 | 5696.0 | 239.2 | Gemini | TReCS | TReCS l | | Gemini/TReCS.m | 46693.6 | 46427.5 | 42043 | 51130 | 5722.0 | 167.0 | Gemini | TReCS | TReCS m | | Gemini/TReCS.Si1 | 77187.9 | 76965.1 | 72000 | 82614 | 6870.3 | 63.9 | Gemini | TReCS | TReCS Si1 | | Gemini/TReCS.PAH1 | 85994.5 | 85881.0 | 81386 | 91232 | 4473.6 | 51.9 | Gemini | TReCS | TReCS PAH1 | | Gemini/TReCS.Si2 | 87245.7 | 86987.7 | 81340 | 92770 | 7645.8 | 50.6 | Gemini | TReCS | TReCS Si2 | | Gemini/TReCS.ArIII | 89973.6 | 89964.6 | 88510 | 91620 | 1346.1 | 47.7 | Gemini | TReCS | TReCS ArIII | | Gemini/TReCS.Si3 | 96668.2 | 96340.0 | 89769 | 103947 | 9285.4 | 41.5 | Gemini | TReCS | TReCS Si3 | | Gemini/TReCS.n | 103112.6 | 94539.0 | 74251 | 133730 | 47500.6 | 38.1 | Gemini | TReCS | TReCS n | | Gemini/TReCS.Si4 | 103872.8 | 103494.3 | 96168 | 112008 | 10203.4 | 36.0 | Gemini | TReCS | TReCS Si4 | | Gemini/TReCS.SIV | 104563.7 | 104549.6 | 103100 | 106172 | 1655.2 | 35.3 | Gemini | TReCS | TReCS SIV | | Gemini/TReCS.PAH2 | 112911.9 | 112738.2 | 106118 | 119870 | 6316.9 | 30.5 | Gemini | TReCS | TReCS PAH2 | | Gemini/TReCS.nprime | 113449.3 | 111850.0 | 98151 | 129061 | 21883.4 | 30.5 | Gemini | TReCS | TReCS nprime | | Gemini/TReCS.Si5 | 116487.2 | 116076.3 | 107614 | 124767 | 11560.2 | 28.8 | Gemini | TReCS | TReCS Si5 | | Gemini/TReCS.Si6 | 123453.3 | 123018.4 | 114490 | 131940 | 11793.1 | 25.7 | Gemini | TReCS | TReCS Si6 | | Gemini/TReCS.NeII | 127966.8 | 127947.8 | 125810 | 130467 | 2275.6 | 24.0 | Gemini | TReCS | TReCS NeII | | Gemini/TReCS.NeII_ref | 130574.2 | 130553.9 | 128152 | 132978 | 2267.6 | 23.0 | Gemini | TReCS | TReCS NeII_ref | | Gemini/TReCS.Qa | 183379.5 | 182904.8 | 172608 | 195853 | 14869.2 | 11.8 | Gemini | TReCS | TReCS Qa | | Gemini/TReCS.Qa | Filter Description | Filter ID (?) : | Gemini/TReCS.Qa |
| Description (?) : | TReCS Qa |
| Phot.System (?) : | TReCS |
| Detector Type (?) : | Energy counter |
| Band Name (?) : | ------ |
| Obs. Facility (?) : | Gemini |
| Instrument (?) : | TReCS |
| Comments (?) : | trecs_fQa.dat
Transmission curve for T-ReCS Qa 18.3 um filter
No blocking element needed.
Measurement temperature = 25K
Author: James De Buizer, digitized from info from U. Reading
Created: 2003 Apr 9
|
| | Mathematical properties | Property | Calculated | Specified | Unit | | λmean (?) : |
183379.53 | ------- | (Angstrom) |
| λcen (?) : |
183260.06 | ------- | (Angstrom) |
| λeff (?) : |
182904.83 | ------- | (Angstrom) |
| λpeak (?) : |
182510.00 | ------- | (Angstrom) |
| λpivot (?) : |
183203.38 | ------- | (Angstrom) |
| λphot (?) : |
183021.30 | ------- | (Angstrom) |
| λmin (?) : |
172608.48 | ------- | (Angstrom) |
| λmax (?) : |
195853.05 | ------- | (Angstrom) |
| Weff (?) : |
14869.18 | ------- | (Angstrom) |
| FWHM (?) : |
15221.13 | ------- | (Angstrom) |
| Af/AV (?) : |
0.03 | ------- | () |
| Fsun (?) : |
------- | ------- | (erg/cm2/s/A) |
| Transmission
Data file: ascii, VOTable Reference for filter response:
Gemini: T-ReCS Transmission components: Filter | | Calibration properties
Vega System | Property | Specified | Calculated | Unit | | Zero Point (?) : |
------- |
1.054e-14 | (erg/cm2/s/A) |
| |
------- |
11.76 | (Jy) |
| ZP Type (?) : |
Pogson |
| PhotCal ID (?) : |
Gemini/TReCS.Qa/Vega |
| |
AB System | Property | Specified | Calculated | Unit | | Zero Point (?) : |
------- |
3.254e-12 | (erg/cm2/s/A) |
| |
------- |
3631.00 | (Jy) |
| ZP Type (?) : |
Pogson |
| PhotCal ID (?) : |
Gemini/TReCS.Qa/AB |
| |
ST System | Property | Specified | Calculated | Unit | | Zero Point (?) : |
------- |
3.631e-9 | (erg/cm2/s/A) |
| |
------- |
4051873.74 | (Jy) |
| ZP Type (?) : |
Pogson |
| PhotCal ID (?) : |
Gemini/TReCS.Qa/ST |
| |
|
Filter added: 2011-10-18 04:47:34
Last update: 2020-03-23 12:58:04 | | Gemini/TReCS.Qwide | 214251.9 | 202898.8 | 162700 | 289370 | 75272.5 | 8.9 | Gemini | TReCS | TReCS Qwide | | Gemini/TReCS.Qb | 245850.4 | 245162.9 | 226100 | 264178 | 19525.5 | 6.6 | Gemini | TReCS | TReCS Qb |
|
© SVO, 6356 filters available, Last update: 2020-07-31 | 
 ≡ 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}
</b><br><table cellpadding=20><td class=helptd>Zero Point in Vega System.<p>Calculated by the service as:<p><img src=images/latex/zp.png> <p>where:<p> T(λ) ≡ 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>eff</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<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=183379.530786&id=Gemini/TReCS.Qa><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=182904.832571&id=Gemini/TReCS.Qa><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=183203.38404264&id=Gemini/TReCS.Qa><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=183021.299327&id=Gemini/TReCS.Qa><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=14869.1777655,183260.06144,0.6521&id=Gemini/TReCS.Qa><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>eff</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 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>eff</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}