KPNO :Kitt Peak National Observatory KPNO/KOSMOS :KOSMOS (Kitt Peak Ohio State Multi-Object Spectrograph) is a medium dispersion spectrograph (resolving power up to 2600) using grism dispersers.id:KPNO/KOSMOS.a |
| KPNO/KOSMOS.BG38 | 4754.91 | 5035.99 | 4790.56 | 3066.77 | 11000.00 | 2673.38 | 3264.29 | 4.33e-9 | KPNO | KOSMOS | KOSMOS BG38 filter | | KPNO/KOSMOS.BG38 | Filter Description | Filter ID (?) : | KPNO/KOSMOS.BG38 |
| Description (?) : | KOSMOS BG38 filter |
| Phot.System (?) : | KOSMOS |
| Detector Type (?) : | Photon counter |
| Band Name (?) : | ------ |
| Obs. Facility (?) : | KPNO |
| Instrument (?) : | KOSMOS |
| Comments (?) : | ------ |
| | Mathematical properties | Property | Calculated | Specified | Unit | | λref (?) : |
4754.91 | ------- | (Angstrom) |
| λmean (?) : |
5035.99 | ------- | (Angstrom) |
| λcen (?) : |
4877.03 | ------- | (Angstrom) |
| λeff (?) : |
4790.56 | ------- | (Angstrom) |
| λpeak (?) : |
5390.00 | ------- | (Angstrom) |
| λpivot (?) : |
4754.91 | ------- | (Angstrom) |
| λphot (?) : |
4929.50 | ------- | (Angstrom) |
| λmin (?) : |
3066.77 | ------- | (Angstrom) |
| λmax (?) : |
11000.00 | ------- | (Angstrom) |
| Weff (?) : |
2673.38 | ------- | (Angstrom) |
| FWHM (?) : |
2908.02 | ------- | (Angstrom) |
| Af/AV (?) : |
1.20 | ------- | () |
| Fsun (?) : |
168.64 | ------- | (erg/cm2/s/A) |
| Transmission
Data file: ascii, VOTable Reference for filter response:
NoirLab Filters page Transmission components: Filterid:KPNO/KOSMOS.BG38 | | Calibration properties
Vega System | Property | Specified | Calculated | Unit | | Zero Point (?) : |
------- |
4.32838e-9 | (erg/cm2/s/A) |
| |
------- |
3264.29 | (Jy) |
| ZP Type (?) : |
Pogson |
| PhotCal ID (?) : |
KPNO/KOSMOS.BG38/Vega |
| |
AB System | Property | Specified | Calculated | Unit | | Zero Point (?) : |
------- |
4.81463e-9 | (erg/cm2/s/A) |
| |
------- |
3631.00 | (Jy) |
| ZP Type (?) : |
Pogson |
| PhotCal ID (?) : |
KPNO/KOSMOS.BG38/AB |
| |
ST System | Property | Specified | Calculated | Unit | | Zero Point (?) : |
------- |
3.631e-9 | (erg/cm2/s/A) |
| |
------- |
2738.35 | (Jy) |
| ZP Type (?) : |
Pogson |
| PhotCal ID (?) : |
KPNO/KOSMOS.BG38/ST |
| |
|
Filter added: 2023-06-06 14:47:01
Last update: 2023-06-06 14:47:01 | | KPNO/KOSMOS.KP1519 | 6549.96 | 6550.00 | 6548.76 | 6466.85 | 6637.12 | 31.85 | 2465.73 | 1.72e-9 | KPNO | KOSMOS | KOSMOS KP1519 filter | | KPNO/KOSMOS.KP1468 | 6556.48 | 6556.83 | 6555.28 | 6360.00 | 6770.00 | 94.52 | 2632.58 | 1.84e-9 | KPNO | KOSMOS | KOSMOS KP1468 filter | | KPNO/KOSMOS.KP1390 | 6576.75 | 6576.88 | 6578.16 | 6468.95 | 6680.29 | 73.58 | 2549.61 | 1.77e-9 | KPNO | KOSMOS | KOSMOS KP1390 filter | | KPNO/KOSMOS.KP1391 | 6609.21 | 6609.33 | 6610.47 | 6505.57 | 6710.49 | 69.27 | 2800.99 | 1.92e-9 | KPNO | KOSMOS | KOSMOS KP1391 filter | | KPNO/KOSMOS.KP1494 | 6649.45 | 6649.66 | 6649.64 | 6514.48 | 6802.43 | 89.45 | 2915.58 | 1.98e-9 | KPNO | KOSMOS | KOSMOS KP1494 filter | | KPNO/KOSMOS.KP1495 | 6685.44 | 6685.61 | 6685.35 | 6567.53 | 6834.02 | 80.59 | 2925.20 | 1.96e-9 | KPNO | KOSMOS | KOSMOS KP1495 filter | | KPNO/KOSMOS.KP1496 | 6741.07 | 6741.27 | 6740.87 | 6615.58 | 6930.33 | 86.76 | 2907.03 | 1.92e-9 | KPNO | KOSMOS | KOSMOS KP1496 filter | | KPNO/KOSMOS.KP1517 | 6866.62 | 6866.77 | 6866.46 | 6752.75 | 7067.10 | 78.69 | 2855.70 | 1.82e-9 | KPNO | KOSMOS | KOSMOS KP1517 filter | | KPNO/KOSMOS.GG395 | 7091.88 | 7907.11 | 6354.58 | 3653.52 | 11000.00 | 5682.61 | 3057.80 | 1.82e-9 | KPNO | KOSMOS | KOSMOS GG395 filter | | KPNO/KOSMOS.GG455 | 7492.85 | 8153.40 | 6864.61 | 4442.58 | 11000.00 | 5225.90 | 2873.37 | 1.53e-9 | KPNO | KOSMOS | KOSMOS GG455 filter | | KPNO/KOSMOS.GG495 | 7698.00 | 8270.40 | 7153.22 | 4760.57 | 11000.00 | 5044.03 | 2767.73 | 1.4e-9 | KPNO | KOSMOS | KOSMOS GG495 filter | | KPNO/KOSMOS.GG530 | 7910.12 | 8424.03 | 7420.66 | 4987.04 | 11000.00 | 4633.20 | 2671.72 | 1.28e-9 | KPNO | KOSMOS | KOSMOS GG530 filter | | KPNO/KOSMOS.OG570 | 8189.25 | 8616.17 | 7791.64 | 5426.01 | 11000.00 | 4159.90 | 2545.98 | 1.14e-9 | KPNO | KOSMOS | KOSMOS OG570 filter |
|
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 ≡ 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=5035.9932206672&id=KPNO/KOSMOS.BG38><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=4790.5573032831&id=KPNO/KOSMOS.BG38><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=4754.9050543827&id=KPNO/KOSMOS.BG38><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=4929.4957044675&id=KPNO/KOSMOS.BG38><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=2673.3834708501,4877.0302429318,1&id=KPNO/KOSMOS.BG38><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}
