Gemini :Gemini Observatory Gemini/Flamingos2 :Filters used in Flamingos-2, a near-infrared imaging spectrograph at Gemini-South, offering observations in the 1.0-2.4 μm wavelength range in a 6.1 arcmin circular field of view.id:Gemini/Flamingos2.a |
| Gemini/Flamingos2.Y | 10197.50 | 10210.28 | 10182.69 | 9556.50 | 10825.59 | 858.42 | 2070.63 | 5.97e-10 | Gemini | Flamingos2 | Flamingos2 Y | | Gemini/Flamingos2.Jlow | 11208.71 | 11233.07 | 11178.47 | 10247.32 | 12054.69 | 1285.89 | 1806.90 | 4.31e-10 | Gemini | Flamingos2 | Flamingos2 Jlow | | Gemini/Flamingos2.J | 12542.19 | 12568.30 | 12504.14 | 11575.00 | 13510.26 | 1446.93 | 1527.28 | 2.91e-10 | Gemini | Flamingos2 | Flamingos2 J | | Gemini/Flamingos2.JH | 13668.73 | 14333.87 | 12758.35 | 8891.83 | 18264.52 | 6316.34 | 1454.64 | 2.33e-10 | Gemini | Flamingos2 | Flamingos2 JH | | Gemini/Flamingos2.H | 16283.49 | 16348.41 | 16199.14 | 14667.01 | 18070.84 | 2751.66 | 1028.98 | 1.16e-10 | Gemini | Flamingos2 | Flamingos2 H | | Gemini/Flamingos2.HK | 18367.19 | 19377.82 | 17004.80 | 12460.67 | 25442.09 | 9892.54 | 934.10 | 8.3e-11 | Gemini | Flamingos2 | Flamingos2 HK | | Gemini/Flamingos2.K-blue_filter | 20541.04 | 20579.12 | 20485.15 | 18952.30 | 22189.88 | 2360.93 | 710.44 | 5.05e-11 | Gemini | Flamingos2 | Flamingos2 K-blue filter | | Gemini/Flamingos2.K-blue | 20544.58 | 20582.76 | 20488.49 | 18952.13 | 22192.44 | 2351.77 | 710.20 | 5.04e-11 | Gemini | Flamingos2 | Flamingos2 K-blue | | Gemini/Flamingos2.Ks | 21552.19 | 21616.27 | 21454.68 | 19649.70 | 23541.51 | 3036.98 | 658.36 | 4.25e-11 | Gemini | Flamingos2 | Flamingos2 Ks | | Gemini/Flamingos2.K-long_filter | 21862.64 | 22060.41 | 21572.94 | 18679.43 | 25304.46 | 5220.38 | 649.61 | 4.07e-11 | Gemini | Flamingos2 | Flamingos2 K-long filter | | Gemini/Flamingos2.K-long | 21899.52 | 22097.52 | 21608.42 | 18683.72 | 25305.73 | 5035.58 | 647.78 | 4.05e-11 | Gemini | Flamingos2 | Flamingos2 K-long | | Gemini/Flamingos2.K-long | Filter Description | Filter ID (?) : | Gemini/Flamingos2.K-long |
| Description (?) : | Flamingos2 K-long |
| Phot.System (?) : | Flamingos2 |
| Detector Type (?) : | Photon counter |
| Band Name (?) : | ------ |
| Obs. Facility (?) : | Gemini |
| Instrument (?) : | Flamingos2 |
| Comments (?) : | The throughput data include the entrance window, filter, nine lenses, and two flat mirrors, i.e. all transmissive elements. Excluded are the detector, grisms, telescope and atmosphere. |
| | Mathematical properties | Property | Calculated | Specified | Unit | | λref (?) : |
21899.52 | ------- | (Angstrom) |
| λmean (?) : |
22097.52 | ------- | (Angstrom) |
| λcen (?) : |
21935.45 | ------- | (Angstrom) |
| λeff (?) : |
21608.42 | ------- | (Angstrom) |
| λpeak (?) : |
24520.00 | ------- | (Angstrom) |
| λpivot (?) : |
21899.52 | ------- | (Angstrom) |
| λphot (?) : |
21740.48 | ------- | (Angstrom) |
| λmin (?) : |
18683.72 | ------- | (Angstrom) |
| λmax (?) : |
25305.73 | ------- | (Angstrom) |
| Weff (?) : |
5035.58 | ------- | (Angstrom) |
| FWHM (?) : |
5806.41 | ------- | (Angstrom) |
| Af/AV (?) : |
0.123 | ------- | () |
| Fsun (?) : |
8.44 | ------- | (erg/cm2/s/A) |
| Transmission
Data file: ascii, VOTable Reference for filter response:
Gemini: Flamingos2id:Gemini/Flamingos2.K-long | | Calibration properties
Vega System | Property | Specified | Calculated | Unit | | Zero Point (?) : |
------- |
4.04927e-11 | (erg/cm2/s/A) |
| |
------- |
647.78 | (Jy) |
| ZP Type (?) : |
Pogson |
| PhotCal ID (?) : |
Gemini/Flamingos2.K-long/Vega |
| |
AB System | Property | Specified | Calculated | Unit | | Zero Point (?) : |
------- |
2.26975e-10 | (erg/cm2/s/A) |
| |
------- |
3631.00 | (Jy) |
| ZP Type (?) : |
Pogson |
| PhotCal ID (?) : |
Gemini/Flamingos2.K-long/AB |
| |
ST System | Property | Specified | Calculated | Unit | | Zero Point (?) : |
------- |
3.631e-9 | (erg/cm2/s/A) |
| |
------- |
58086.44 | (Jy) |
| ZP Type (?) : |
Pogson |
| PhotCal ID (?) : |
Gemini/Flamingos2.K-long/ST |
| |
|
Filter added: 2020-01-08 22:13:00
Last update: 2021-07-27 19:12:28 | | Gemini/Flamingos2.K-red_filter | 23121.96 | 23162.33 | 23062.91 | 21387.87 | 24919.87 | 2579.80 | 582.30 | 3.27e-11 | Gemini | Flamingos2 | Flamingos2 K-red filter | | Gemini/Flamingos2.K-red | 23129.89 | 23170.26 | 23070.77 | 21393.27 | 24921.11 | 2533.40 | 581.96 | 3.26e-11 | Gemini | Flamingos2 | Flamingos2 K-red |
|
| 
 ≡ 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=22097.516597131&id=Gemini/Flamingos2.K-long><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=21608.417370049&id=Gemini/Flamingos2.K-long><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=21899.520137929&id=Gemini/Flamingos2.K-long><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=21740.477051673&id=Gemini/Flamingos2.K-long><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=5035.5778259708,21935.449828229,1&id=Gemini/Flamingos2.K-long><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}
