Gemini :Gemini Observatory Gemini/GMOS-N :Filters used in the Gemini Multi-Object Spectrograph (GMOS) in Gemini North |
| Gemini/GMOS-N.u | 3593.6 | 3644.0 | 3063 | 4110 | 611.3 | 1727.4 | Gemini | GMOS-N | GMOS-N u, G0308 | | Gemini/GMOS-N.HeII | 4684.5 | 4684.0 | 4585 | 4775 | 75.6 | 4217.2 | Gemini | GMOS-N | GMOS-N HeII, G0320 | | Gemini/GMOS-N.HeII | Filter Description | Filter ID (?) : | Gemini/GMOS-N.HeII |
| Description (?) : | GMOS-N HeII, G0320 |
| Phot.System (?) : | GMOS-N |
| Detector Type (?) : | Energy counter |
| Band Name (?) : | ------ |
| Obs. Facility (?) : | Gemini |
| Instrument (?) : | GMOS-N |
| Comments (?) : | ------ |
| | Mathematical properties | Property | Calculated | Specified | Unit | | λmean (?) : |
4684.50 | ------- | (Angstrom) |
| λcen (?) : |
4684.85 | ------- | (Angstrom) |
| λeff (?) : |
4684.00 | ------- | (Angstrom) |
| λpeak (?) : |
4686.00 | ------- | (Angstrom) |
| λpivot (?) : |
4684.25 | ------- | (Angstrom) |
| λphot (?) : |
4684.16 | ------- | (Angstrom) |
| λmin (?) : |
4585.44 | ------- | (Angstrom) |
| λmax (?) : |
4774.56 | ------- | (Angstrom) |
| Weff (?) : |
75.59 | ------- | (Angstrom) |
| FWHM (?) : |
72.09 | ------- | (Angstrom) |
| Af/AV (?) : |
1.22 | ------- | () |
| Fsun (?) : |
------- | ------- | (erg/cm2/s/A) |
| Transmission
Data file: ascii, VOTable Reference for filter response:
Gemini: GMOS Transmission components: Filter | | Calibration properties
Vega System | Property | Specified | Calculated | Unit | | Zero Point (?) : |
------- |
5.763e-9 | (erg/cm2/s/A) |
| |
------- |
4217.23 | (Jy) |
| ZP Type (?) : |
Pogson |
| PhotCal ID (?) : |
Gemini/GMOS-N.HeII/Vega |
| |
AB System | Property | Specified | Calculated | Unit | | Zero Point (?) : |
------- |
4.962e-9 | (erg/cm2/s/A) |
| |
------- |
3631.00 | (Jy) |
| ZP Type (?) : |
Pogson |
| PhotCal ID (?) : |
Gemini/GMOS-N.HeII/AB |
| |
ST System | Property | Specified | Calculated | Unit | | Zero Point (?) : |
------- |
3.631e-9 | (erg/cm2/s/A) |
| |
------- |
2657.29 | (Jy) |
| ZP Type (?) : |
Pogson |
| PhotCal ID (?) : |
Gemini/GMOS-N.HeII/ST |
| |
|
Filter added: 2011-10-18 04:39:20
Last update: 2020-03-23 12:58:04 | | Gemini/GMOS-N.g | 4750.6 | 4647.5 | 3900 | 5600 | 1437.7 | 3942.7 | Gemini | GMOS-N | GMOS-N g, G0301 | | Gemini/GMOS-N.HeIIC | 4780.5 | 4779.4 | 4680 | 4873 | 80.9 | 4065.2 | Gemini | GMOS-N | GMOS-N HeIIC, G0321 | | Gemini/GMOS-N.OIII | 4996.3 | 4995.4 | 4899 | 5094 | 55.3 | 3954.1 | Gemini | GMOS-N | GMOS-N OIII, G0318 | | Gemini/GMOS-N.OIIIC | 5143.8 | 5142.9 | 5047 | 5240 | 82.2 | 3838.1 | Gemini | GMOS-N | GMOS-N OIIIC, G0319 | | Gemini/GMOS-N.r | 6304.6 | 6224.5 | 5500 | 7200 | 1319.3 | 3105.0 | Gemini | GMOS-N | GMOS-N r, G0303 | | Gemini/GMOS-N.Ha | 6577.1 | 6578.5 | 6508 | 6646 | 73.2 | 2534.9 | Gemini | GMOS-N | GMOS-N Ha, G0310 | | Gemini/GMOS-N.HaC | 6632.0 | 6632.2 | 6561 | 6703 | 69.4 | 2923.3 | Gemini | GMOS-N | GMOS-N HaC, G0311 | | Gemini/GMOS-N.SII | 6720.1 | 6719.8 | 6612 | 6824 | 59.6 | 2929.7 | Gemini | GMOS-N | GMOS-N SII, G0317 | | Gemini/GMOS-N.OVIC | 6790.2 | 6790.1 | 6732 | 6848 | 53.4 | 2903.7 | Gemini | GMOS-N | GMOS-N OVIC, G0346 | | Gemini/GMOS-N.OVI | 6838.2 | 6838.0 | 6781 | 6898 | 54.4 | 2882.0 | Gemini | GMOS-N | GMOS-N OVI, G0345 | | Gemini/GMOS-N.ri | 7054.7 | 6745.2 | 5426 | 8593 | 2897.4 | 2765.5 | Gemini | GMOS-N | GMOS-N r+i, G0349 | | Gemini/GMOS-N.i | 7785.9 | 7713.8 | 6860 | 8602 | 1411.0 | 2493.4 | Gemini | GMOS-N | GMOS-N i, G0302 | | Gemini/GMOS-N.CaT | 8567.3 | 8501.0 | 7368 | 9694 | 1480.8 | 2308.5 | Gemini | GMOS-N | GMOS-N CaT, G0309 | | Gemini/GMOS-N.Zc | 8817.9 | 8801.5 | 8129 | 9457 | 926.9 | 2261.3 | Gemini | GMOS-N | GMOS-N Z, G0322 | | Gemini/GMOS-N.DS920 | 9219.2 | 9217.0 | 9034 | 9400 | 190.0 | 2261.7 | Gemini | GMOS-N | GMOS-N DS920, G0312 | | Gemini/GMOS-N.z | 9722.7 | 9571.6 | 8248 | 11000 | 2517.2 | 2135.4 | Gemini | GMOS-N | GMOS-N z, G0304 | | Gemini/GMOS-N.Y | 10367.8 | 10339.1 | 9648 | 11126 | 999.6 | 2040.8 | Gemini | GMOS-N | GMOS-N Y, G0323 |
|
© SVO, 6368 filters available, Last update: 2020-08-07 | 
 ≡ 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=4684.49521675&id=Gemini/GMOS-N.HeII><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=4683.99978533&id=Gemini/GMOS-N.HeII><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=4684.2486924356&id=Gemini/GMOS-N.HeII><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=4684.16434403&id=Gemini/GMOS-N.HeII><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=75.5855277005,4684.85294118,0.748&id=Gemini/GMOS-N.HeII><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}