CTIO :Cerro Tololo Inter-American Observatory CTIO/SOI :The SOAR Optical Imager (SOI) is a bent-Cassegrain mounted optical imager using a mini-mosaic of two E2V 2k x 4k CCDs to cover a 5.26 arcminute square field of view at a scale of 0.077''/pixel. |
| CTIO/SOI.strom_u | 3464.0 | 3461.1 | 3207 | 3728 | 336.8 | 1270.0 | CTIO | SOI | SOI strom u filter | | CTIO/SOI.sdss_u | 3531.6 | 3556.4 | 3113 | 3991 | 530.5 | 1478.5 | CTIO | SOI | SOI SDSS u' filter | | CTIO/SOI.bessel_U | 3614.6 | 3670.0 | 3063 | 4154 | 600.4 | 1803.0 | CTIO | SOI | SOI Bessel U filter | | CTIO/SOI.strom_v | 4087.5 | 4085.0 | 3929 | 4246 | 150.7 | 4209.4 | CTIO | SOI | SOI strom v filter | | CTIO/SOI.strom_v | Filter Description | Filter ID (?) : | CTIO/SOI.strom_v |
| Description (?) : | SOI strom v filter |
| Phot.System (?) : | Stromgren |
| Detector Type (?) : | Energy counter |
| Band Name (?) : | v |
| Obs. Facility (?) : | CTIO |
| Instrument (?) : | SOI |
| Comments (?) : | ------ |
| | Mathematical properties | Property | Calculated | Specified | Unit | | λmean (?) : |
4087.47 | ------- | (Angstrom) |
| λcen (?) : |
4089.02 | ------- | (Angstrom) |
| λeff (?) : |
4085.02 | ------- | (Angstrom) |
| λpeak (?) : |
4032.10 | ------- | (Angstrom) |
| λpivot (?) : |
4086.40 | ------- | (Angstrom) |
| λphot (?) : |
4085.78 | ------- | (Angstrom) |
| λmin (?) : |
3929.29 | ------- | (Angstrom) |
| λmax (?) : |
4246.18 | ------- | (Angstrom) |
| Weff (?) : |
150.70 | ------- | (Angstrom) |
| FWHM (?) : |
160.00 | ------- | (Angstrom) |
| Af/AV (?) : |
1.41 | ------- | () |
| Fsun (?) : |
------- | ------- | (erg/cm2/s/A) |
| Transmission
Data file: ascii, VOTable Reference for filter response:
SOAR Transmission components: Filter | | Calibration properties
Vega System | Property | Specified | Calculated | Unit | | Zero Point (?) : |
------- |
7.562e-9 | (erg/cm2/s/A) |
| |
------- |
4209.39 | (Jy) |
| ZP Type (?) : |
Pogson |
| PhotCal ID (?) : |
CTIO/SOI.strom_v/Vega |
| |
AB System | Property | Specified | Calculated | Unit | | Zero Point (?) : |
------- |
6.523e-9 | (erg/cm2/s/A) |
| |
------- |
3631.00 | (Jy) |
| ZP Type (?) : |
Pogson |
| PhotCal ID (?) : |
CTIO/SOI.strom_v/AB |
| |
ST System | Property | Specified | Calculated | Unit | | Zero Point (?) : |
------- |
3.631e-9 | (erg/cm2/s/A) |
| |
------- |
2021.13 | (Jy) |
| ZP Type (?) : |
Pogson |
| PhotCal ID (?) : |
CTIO/SOI.strom_v/ST |
| |
|
Filter added: 2017-08-05 14:35:34
Last update: 2020-03-23 12:58:04 | | CTIO/SOI.bessel_B | 4344.5 | 4319.2 | 3580 | 5417 | 981.9 | 3943.1 | CTIO | | SOI Bessel B filter | | CTIO/SOI.strom_b | 4694.5 | 4692.1 | 4554 | 4859 | 181.6 | 4194.0 | CTIO | SOI | SOI strom b filter | | CTIO/SOI.sdss_g | 4726.8 | 4642.9 | 3906 | 5518 | 1277.4 | 3972.7 | CTIO | SOI | SOI SDSS g' filter | | CTIO/SOI.bessel_V | 5385.1 | 5338.2 | 4758 | 6552 | 814.5 | 3661.6 | CTIO | SOI | SOI Bessel V filter | | CTIO/SOI.strom_y | 5455.5 | 5452.7 | 5265 | 5671 | 221.1 | 3622.6 | CTIO | SOI | SOI strom y filter | | CTIO/SOI.sdss_r | 6264.2 | 6181.7 | 5399 | 7092 | 1334.2 | 3126.9 | CTIO | SOI | SOI SDSS r' filter | | CTIO/SOI.bessel_R | 6451.0 | 6327.3 | 5505 | 8079 | 1257.2 | 3037.8 | CTIO | SOI | SOI Bessel R filter | | CTIO/SOI.Halpha | 6571.6 | 6572.2 | 6487 | 6658 | 74.3 | 2538.3 | CTIO | SOI | SOI Halpha filter | | CTIO/SOI.SII | 6742.5 | 6742.3 | 6663 | 6816 | 52.0 | 2923.7 | CTIO | SOI | SOI SII filter | | CTIO/SOI.sdss_i | 7709.4 | 7628.3 | 6742 | 8620 | 1473.1 | 2521.9 | CTIO | SOI | SOI SDSS i' filter | | CTIO/SOI.TiO | 7780.0 | 7779.5 | 7689 | 7880 | 100.5 | 2491.5 | CTIO | SOI | SOI TiO filter | | CTIO/SOI.CN | 8123.2 | 8122.8 | 8035 | 8203 | 88.1 | 2377.2 | CTIO | SOI | SOI CN filter | | CTIO/SOI.bessel_I | 8805.8 | 8535.1 | 7038 | 11137 | 2780.1 | 2281.9 | CTIO | SOI | SOI Bessel I filter | | CTIO/SOI.sdss_z | 9841.2 | 9620.9 | 7984 | 11400 | 2608.6 | 2103.5 | CTIO | SOI | SOI SDSS z' filter |
|
© SVO, 6356 filters available, Last update: 2020-07-31 | 
 ≡ 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=4087.4664039967&id=CTIO/SOI.strom_v><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=4085.0246110912&id=CTIO/SOI.strom_v><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=4086.3994199862&id=CTIO/SOI.strom_v><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=4085.776483005&id=CTIO/SOI.strom_v><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=150.69619184364,4089.0178506787,0.7515&id=CTIO/SOI.strom_v><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}