WHT :William Herschel Telescope WHT/LRIS :LIRIS (Long-slit Intermediate Resolution Infrared Spectrograph) is a near-IR imager/spectrograph for use at the Cassegrain focus of the 4.2m William Herschel Telescope.id:WHT/LRIS.a |
| WHT/LRIS.Z | 10329.75 | 10334.30 | 10326.17 | 9697.60 | 10926.72 | 507.09 | 2037.17 | 5.72e-10 | WHT | LRIS | LRIS Z | | WHT/LRIS.Jc | 12312.11 | 12312.69 | 12311.32 | 12112.00 | 12596.40 | 186.66 | 1580.07 | 3.12e-10 | WHT | LRIS | LRIS Jc | | WHT/LRIS.J | 12488.24 | 12516.57 | 12447.05 | 11010.00 | 13995.00 | 1544.38 | 1538.67 | 2.96e-10 | WHT | LRIS | LRIS J | | WHT/LRIS.Pab | 12945.35 | 12946.01 | 12946.58 | 12711.40 | 13195.80 | 211.29 | 1429.23 | 2.56e-10 | WHT | LRIS | LRIS Pab | | WHT/LRIS.Hc | 15773.52 | 15774.75 | 15771.65 | 15214.00 | 16398.10 | 243.85 | 1060.32 | 1.28e-10 | WHT | LRIS | LRIS Hc | | WHT/LRIS.H | 16189.14 | 16262.19 | 16093.14 | 14097.30 | 18198.20 | 2828.81 | 1038.86 | 1.19e-10 | WHT | LRIS | LRIS H | | WHT/LRIS.FeII | 16467.57 | 16468.61 | 16468.36 | 16013.00 | 16994.90 | 270.31 | 994.12 | 1.1e-10 | WHT | LRIS | LRIS FeII | | WHT/LRIS.CH4 | 16823.29 | 16843.06 | 16797.34 | 15177.12 | 18496.70 | 1376.28 | 974.59 | 1.03e-10 | WHT | LRIS | LRIS CH4 | | WHT/LRIS.HeI | 20612.29 | 20613.70 | 20610.16 | 20017.70 | 21192.10 | 312.60 | 710.71 | 5.01e-11 | WHT | LRIS | LRIS HeI | | WHT/LRIS.H2p10 | 21240.66 | 21242.31 | 21237.82 | 20518.30 | 21991.10 | 339.09 | 672.85 | 4.47e-11 | WHT | LRIS | LRIS H2p10 | | WHT/LRIS.Ks | 21411.65 | 21472.75 | 21319.04 | 19016.50 | 23935.70 | 3012.81 | 665.72 | 4.35e-11 | WHT | LRIS | LRIS Ks | | WHT/LRIS.Brg | 21710.45 | 21712.67 | 21708.65 | 21018.80 | 22491.70 | 360.33 | 626.13 | 3.98e-11 | WHT | LRIS | LRIS Brg | | WHT/LRIS.H2p21 | 22416.73 | 22418.51 | 22414.12 | 21712.00 | 23098.20 | 403.07 | 612.99 | 3.66e-11 | WHT | LRIS | LRIS H2p21 | | WHT/LRIS.H2p21 | Filter Description | Filter ID (?) : | WHT/LRIS.H2p21 |
| Description (?) : | LRIS H2p21 |
| Phot.System (?) : | LRIS |
| Detector Type (?) : | Energy counter |
| Band Name (?) : | ------ |
| Obs. Facility (?) : | WHT |
| Instrument (?) : | LRIS |
| Comments (?) : | ------ |
| | Mathematical properties | Property | Calculated | Specified | Unit | | λref (?) : |
22416.73 | ------- | (Angstrom) |
| λmean (?) : |
22418.51 | ------- | (Angstrom) |
| λcen (?) : |
22413.00 | ------- | (Angstrom) |
| λeff (?) : |
22414.12 | ------- | (Angstrom) |
| λpeak (?) : |
22385.80 | ------- | (Angstrom) |
| λpivot (?) : |
22416.73 | ------- | (Angstrom) |
| λphot (?) : |
22415.30 | ------- | (Angstrom) |
| λmin (?) : |
21712.00 | ------- | (Angstrom) |
| λmax (?) : |
23098.20 | ------- | (Angstrom) |
| Weff (?) : |
403.07 | ------- | (Angstrom) |
| FWHM (?) : |
397.08 | ------- | (Angstrom) |
| Af/AV (?) : |
0.119 | ------- | () |
| Fsun (?) : |
7.69 | ------- | (erg/cm2/s/A) |
| Transmission
Data file: ascii, VOTable Reference for filter response:
ING: LRIS Transmission components: Filterid:WHT/LRIS.H2p21 | | Calibration properties
Vega System | Property | Specified | Calculated | Unit | | Zero Point (?) : |
------- |
3.65703e-11 | (erg/cm2/s/A) |
| |
------- |
612.99 | (Jy) |
| ZP Type (?) : |
Pogson |
| PhotCal ID (?) : |
WHT/LRIS.H2p21/Vega |
| |
AB System | Property | Specified | Calculated | Unit | | Zero Point (?) : |
------- |
2.16622e-10 | (erg/cm2/s/A) |
| |
------- |
3631.00 | (Jy) |
| ZP Type (?) : |
Pogson |
| PhotCal ID (?) : |
WHT/LRIS.H2p21/AB |
| |
ST System | Property | Specified | Calculated | Unit | | Zero Point (?) : |
------- |
3.631e-9 | (erg/cm2/s/A) |
| |
------- |
60862.55 | (Jy) |
| ZP Type (?) : |
Pogson |
| PhotCal ID (?) : |
WHT/LRIS.H2p21/ST |
| |
|
Filter added: 2011-10-18 09:33:25
Last update: 2021-07-27 20:45:17 | | WHT/LRIS.Kc | 22671.23 | 22673.41 | 22667.99 | 22010.40 | 23396.60 | 350.30 | 600.99 | 3.51e-11 | WHT | LRIS | LRIS Kc |
|
| 
 ≡ 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=22418.509380562&id=WHT/LRIS.H2p21><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=22414.117655716&id=WHT/LRIS.H2p21><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=22416.731656506&id=WHT/LRIS.H2p21><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=22415.296526849&id=WHT/LRIS.H2p21><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=403.07213700571,22412.997973278,0.66015&id=WHT/LRIS.H2p21><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}
