NAOC :National Astronomical Observatories of China. NAOC/BFOSC :Beijing-Faint Object Spectrograph and Camera (BFOSC) |
| NAOC/BFOSC.U | 3624.44 | 3639.10 | 3690.92 | 3150.56 | 4128.20 | 546.46 | 1831.97 | 4.03e-9 | Xinglong | BFOSC | BFOSC U filter | | NAOC/BFOSC.B | 4329.81 | 4370.09 | 4342.14 | 3558.78 | 5704.47 | 970.67 | 3948.09 | 6.28e-9 | Xinglong | BFOSC | BFOSC B filter | | NAOC/BFOSC.V | 5372.53 | 5405.81 | 5345.76 | 4645.30 | 6538.25 | 982.91 | 3626.73 | 3.8e-9 | Xinglong | BFOSC | BFOSC V filter | | NAOC/BFOSC.385LP | 5607.43 | 6053.80 | 5296.68 | 3532.02 | 8442.83 | 4277.09 | 3107.60 | 3.32e-9 | Xinglong | BFOSC | BFOSC 385LP filter | | NAOC/BFOSC.R | 6386.27 | 6451.14 | 6322.85 | 5550.66 | 8469.94 | 1252.71 | 3039.22 | 2.28e-9 | Xinglong | BFOSC | BFOSC R filter | | NAOC/BFOSC.Ha_C1 | 6549.19 | 6549.31 | 6547.21 | 6471.75 | 6629.86 | 65.77 | 2554.76 | 1.79e-9 | Xinglong | BFOSC | BFOSC Halpha C1 filter | | NAOC/BFOSC.Ha_C12 | 6552.12 | 6552.60 | 6550.45 | 6383.29 | 6675.95 | 143.52 | 2735.73 | 1.91e-9 | Xinglong | BFOSC | BFOSC Halpha C12 filter | | NAOC/BFOSC.Ha_C2 | 6598.91 | 6599.08 | 6601.07 | 6517.08 | 6719.71 | 64.13 | 2697.40 | 1.86e-9 | Xinglong | BFOSC | BFOSC Halpha C2 filter | | NAOC/BFOSC.Ha_C3 | 6649.61 | 6649.79 | 6649.83 | 6548.21 | 6754.26 | 71.02 | 2937.43 | 1.99e-9 | Xinglong | BFOSC | BFOSC Halpha C3 filter | | NAOC/BFOSC.Ha_C4 | 6709.94 | 6710.04 | 6709.84 | 6633.74 | 6781.09 | 60.69 | 2936.93 | 1.96e-9 | Xinglong | BFOSC | BFOSC Halpha C4 filter | | NAOC/BFOSC.Ha_C5 | 6756.52 | 6756.63 | 6756.42 | 6674.59 | 6827.21 | 60.24 | 2917.94 | 1.92e-9 | Xinglong | BFOSC | BFOSC Halpha C5 filter | | NAOC/BFOSC.Ha_C6 | 6806.94 | 6807.05 | 6806.82 | 6726.85 | 6889.68 | 62.54 | 2896.17 | 1.87e-9 | Xinglong | BFOSC | BFOSC Halpha C6 filter | | NAOC/BFOSC.Ha_C7 | 6858.13 | 6858.23 | 6858.03 | 6789.80 | 6926.51 | 62.99 | 2873.15 | 1.83e-9 | Xinglong | BFOSC | BFOSC Halpha C7 filter | | NAOC/BFOSC.Ha_C8 | 6910.56 | 6910.66 | 6910.44 | 6834.35 | 6984.66 | 63.76 | 2850.16 | 1.79e-9 | Xinglong | BFOSC | BFOSC Halpha C8 filter | | NAOC/BFOSC.Ha_C9 | 6956.92 | 6957.05 | 6956.78 | 6875.25 | 7040.87 | 66.31 | 2829.67 | 1.75e-9 | Xinglong | BFOSC | BFOSC Halpha C9 filter | | NAOC/BFOSC.Ha_C10 | 7012.84 | 7012.94 | 7012.73 | 6936.78 | 7096.13 | 61.74 | 2804.02 | 1.71e-9 | Xinglong | BFOSC | BFOSC Halpha C10 filter | | NAOC/BFOSC.Ha_C11 | 7064.98 | 7065.11 | 7064.84 | 6972.92 | 7156.23 | 66.16 | 2782.18 | 1.67e-9 | Xinglong | BFOSC | BFOSC Halpha C11 filter | | NAOC/BFOSC.Ha_C11 | Filter Description | Filter ID (?) : | NAOC/BFOSC.Ha_C11 |
| Description (?) : | BFOSC Halpha C11 filter |
| Phot.System (?) : | BFOSC |
| Detector Type (?) : | Energy counter |
| Band Name (?) : | ------ |
| Obs. Facility (?) : | Xinglong |
| Instrument (?) : | BFOSC |
| Comments (?) : | ------ |
| | Mathematical properties | Property | Calculated | Specified | Unit | | λref (?) : |
7064.98 | ------- | (Angstrom) |
| λmean (?) : |
7065.11 | ------- | (Angstrom) |
| λcen (?) : |
7066.33 | ------- | (Angstrom) |
| λeff (?) : |
7064.84 | ------- | (Angstrom) |
| λpeak (?) : |
7062.81 | ------- | (Angstrom) |
| λpivot (?) : |
7064.98 | ------- | (Angstrom) |
| λphot (?) : |
7064.92 | ------- | (Angstrom) |
| λmin (?) : |
6972.92 | ------- | (Angstrom) |
| λmax (?) : |
7156.23 | ------- | (Angstrom) |
| Weff (?) : |
66.16 | ------- | (Angstrom) |
| FWHM (?) : |
61.81 | ------- | (Angstrom) |
| Af/AV (?) : |
0.723 | ------- | () |
| Fsun (?) : |
140.23 | ------- | (erg/cm2/s/A) |
| Transmission
Data file: ascii, VOTable Reference for filter response:
Xinglong Observatory: 2.16-m Telescope Transmission components: Filter | | Calibration properties
Vega System | Property | Specified | Calculated | Unit | | Zero Point (?) : |
------- |
1.6711e-9 | (erg/cm2/s/A) |
| |
------- |
2782.18 | (Jy) |
| ZP Type (?) : |
Pogson |
| PhotCal ID (?) : |
NAOC/BFOSC.Ha_C11/Vega |
| |
AB System | Property | Specified | Calculated | Unit | | Zero Point (?) : |
------- |
2.18093e-9 | (erg/cm2/s/A) |
| |
------- |
3631.00 | (Jy) |
| ZP Type (?) : |
Pogson |
| PhotCal ID (?) : |
NAOC/BFOSC.Ha_C11/AB |
| |
ST System | Property | Specified | Calculated | Unit | | Zero Point (?) : |
------- |
3.631e-9 | (erg/cm2/s/A) |
| |
------- |
6045.19 | (Jy) |
| ZP Type (?) : |
Pogson |
| PhotCal ID (?) : |
NAOC/BFOSC.Ha_C11/ST |
| |
|
Filter added: 2018-12-14 22:33:32
Last update: 2020-12-10 16:33:12 | | NAOC/BFOSC.I | 8806.32 | 8998.45 | 8658.49 | 6928.62 | 12348.04 | 3263.02 | 2243.90 | 8.97e-10 | Xinglong | BFOSC | BFOSC I filter | | NAOC/BFOSC.Z | 10412.75 | 10511.90 | 10300.95 | 8575.24 | 11919.10 | 2563.83 | 1989.62 | 5.62e-10 | Xinglong | BFOSC | BFOSC Z filter |
|
© SVO, 8999 filters available, Last update: 2021-01-18 | 
 ≡ 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>More info:</u><p>Vega spectrum from calspec database.<ul><li><a href="https://ssb.stsci.edu/cdbs_open/cdbs/current_calspec/" target="_blank">STScI current calspec</a>.<li><a href="morefiles/vega.dat" target="_blank">Vega spectrum</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.SpectralAxis.Coverage.Bounds.Extent</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>Utype</b>: <i>photdm:PhotometricSystem.detectorType</i></ul></td></table>',WIDTH,400)){kind=link}
 ≡ filter transmission<p><img src=showgraph.php?what=lmean&val=7065.1073351859&id=NAOC/BFOSC.Ha_C11><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=7064.8377401381&id=NAOC/BFOSC.Ha_C11><p><u>More info:</u><p>Vega spectrum from calspec database.<ul><li><a href="https://ssb.stsci.edu/cdbs_open/cdbs/current_calspec/" target="_blank">STScI current calspec</a>.<li><a href="morefiles/vega.dat" target="_blank">Vega spectrum</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=7064.9800698052&id=NAOC/BFOSC.Ha_C11><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=7064.922751982&id=NAOC/BFOSC.Ha_C11><p><u>More info:</u><p>Vega spectrum from calspec database.<ul><li><a href="https://ssb.stsci.edu/cdbs_open/cdbs/current_calspec/" target="_blank">STScI current calspec</a>.<li><a href="morefiles/vega.dat" target="_blank">Vega spectrum</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=66.160586928445,7066.3265681707,0.84174643&id=NAOC/BFOSC.Ha_C11><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>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/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><img src=images/sunspec.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://ssb.stsci.edu/cdbs_open/cdbs/current_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://ssb.stsci.edu/cdbs_open/cdbs/current_calspec/" target="_blank">STScI current calspec</a>.<li><a href="morefiles/vega.dat" target="_blank">Vega spectrum</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}
