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.id:CTIO/SOI.a → GaiaXPy base XML file. You can download here the GaiaXPy base XML file for the full CTIO/SOI filter set. Please, take a look to the GaiaXPy web page and additional documentation for more information. |
| CTIO/SOI.strom_u | 3458.83 | 3464.04 | 3460.91 | 3207.49 | 3727.75 | 336.78 | 1286.23 | 3.22e-9 | CTIO | SOI | SOI strom u filter | | CTIO/SOI.strom_u | Filter Description | Filter ID (?) : | CTIO/SOI.strom_u |
| Description (?) : | SOI strom u filter |
| Phot.System (?) : | Stromgren |
| Detector Type (?) : | Energy counter |
| Band Name (?) : | u |
| Obs. Facility (?) : | CTIO |
| Instrument (?) : | SOI |
| Comments (?) : | ------ |
| | Mathematical properties | Property | Calculated | Specified | Unit | | λref (?) : |
3458.83 | ------- | (Angstrom) |
| λmean (?) : |
3464.04 | ------- | (Angstrom) |
| λcen (?) : |
3469.73 | ------- | (Angstrom) |
| λeff (?) : |
3460.91 | ------- | (Angstrom) |
| λpeak (?) : |
3459.80 | ------- | (Angstrom) |
| λpivot (?) : |
3458.83 | ------- | (Angstrom) |
| λphot (?) : |
3464.40 | ------- | (Angstrom) |
| λmin (?) : |
3207.49 | ------- | (Angstrom) |
| λmax (?) : |
3727.75 | ------- | (Angstrom) |
| Weff (?) : |
336.78 | ------- | (Angstrom) |
| FWHM (?) : |
365.19 | ------- | (Angstrom) |
| Af/AV (?) : |
1.64 | ------- | () |
| Fsun (?) : |
98.34 | ------- | (erg/cm2/s/A) |
| Transmission
Data file: ascii, VOTable Reference for filter response:
SOAR Transmission components: Filterid:CTIO/SOI.strom_u
You can download here the GaiaXPy base XML file for the full CTIO/SOI filter set.
Please, take a look to GaiaXPy documentation for more information. - GaiaXPy base XML file. | | Calibration properties
Vega System | Property | Specified | Calculated | Unit | | Zero Point (?) : |
------- |
3.22316e-9 | (erg/cm2/s/A) |
| |
------- |
1286.23 | (Jy) |
| ZP Type (?) : |
Pogson |
| PhotCal ID (?) : |
CTIO/SOI.strom_u/Vega |
| |
AB System | Property | Specified | Calculated | Unit | | Zero Point (?) : |
------- |
9.09892e-9 | (erg/cm2/s/A) |
| |
------- |
3631.00 | (Jy) |
| ZP Type (?) : |
Pogson |
| PhotCal ID (?) : |
CTIO/SOI.strom_u/AB |
| |
ST System | Property | Specified | Calculated | Unit | | Zero Point (?) : |
------- |
3.631e-9 | (erg/cm2/s/A) |
| |
------- |
1448.98 | (Jy) |
| ZP Type (?) : |
Pogson |
| PhotCal ID (?) : |
CTIO/SOI.strom_u/ST |
| |
|
Filter added: 2017-08-05 14:34:55
Last update: 2021-07-27 19:00:14 | | CTIO/SOI.sdss_u | 3517.31 | 3531.64 | 3556.40 | 3113.10 | 3991.20 | 530.46 | 1467.58 | 3.56e-9 | CTIO | SOI | SOI SDSS u' filter | | CTIO/SOI.bessel_U | 3596.37 | 3614.60 | 3669.86 | 3063.32 | 4153.57 | 600.36 | 1756.12 | 4.07e-9 | CTIO | SOI | SOI Bessel U filter | | CTIO/SOI.strom_v | 4086.40 | 4087.47 | 4085.01 | 3929.29 | 4246.18 | 150.70 | 4250.34 | 7.63e-9 | CTIO | SOI | SOI strom v filter | | CTIO/SOI.bessel_B | 4305.86 | 4344.51 | 4317.93 | 3580.34 | 5416.98 | 981.91 | 3942.67 | 6.38e-9 | CTIO | | SOI Bessel B filter | | CTIO/SOI.strom_b | 4693.43 | 4694.52 | 4692.11 | 4553.69 | 4859.45 | 181.56 | 4208.50 | 5.73e-9 | CTIO | SOI | SOI strom b filter | | CTIO/SOI.sdss_g | 4676.20 | 4726.83 | 4641.79 | 3905.57 | 5518.05 | 1277.36 | 4042.19 | 5.54e-9 | CTIO | SOI | SOI SDSS g' filter | | CTIO/SOI.bessel_V | 5360.23 | 5385.15 | 5338.24 | 4758.41 | 6552.11 | 814.54 | 3693.56 | 3.85e-9 | CTIO | SOI | SOI Bessel V filter | | CTIO/SOI.strom_y | 5454.07 | 5455.54 | 5452.69 | 5265.28 | 5670.77 | 221.12 | 3632.29 | 3.66e-9 | CTIO | SOI | SOI strom y filter | | CTIO/SOI.sdss_r | 6224.97 | 6264.17 | 6180.90 | 5399.44 | 7091.70 | 1334.19 | 3162.14 | 2.45e-9 | CTIO | SOI | SOI SDSS r' filter | | CTIO/SOI.bessel_R | 6388.84 | 6450.81 | 6326.15 | 5505.27 | 8079.45 | 1257.06 | 3086.70 | 2.27e-9 | CTIO | SOI | SOI Bessel R filter | | CTIO/SOI.Halpha | 6571.40 | 6571.57 | 6572.14 | 6486.81 | 6657.58 | 74.30 | 2549.87 | 1.77e-9 | CTIO | SOI | SOI Halpha filter | | CTIO/SOI.SII | 6742.36 | 6742.48 | 6742.24 | 6662.70 | 6815.54 | 51.95 | 2907.23 | 1.92e-9 | CTIO | SOI | SOI SII filter | | CTIO/SOI.sdss_i | 7670.57 | 7709.38 | 7627.55 | 6741.74 | 8619.90 | 1473.11 | 2526.06 | 1.29e-9 | CTIO | SOI | SOI SDSS i' filter | | CTIO/SOI.TiO | 7779.76 | 7779.97 | 7779.52 | 7689.03 | 7879.78 | 100.53 | 2458.95 | 1.22e-9 | CTIO | SOI | SOI TiO filter | | CTIO/SOI.CN | 8122.99 | 8123.16 | 8122.78 | 8034.66 | 8202.62 | 88.14 | 2350.09 | 1.07e-9 | CTIO | SOI | SOI CN filter | | CTIO/SOI.bessel_I | 8650.74 | 8805.22 | 8533.57 | 7038.15 | 11136.74 | 2779.58 | 2321.92 | 9.3e-10 | CTIO | SOI | SOI Bessel I filter | | CTIO/SOI.sdss_z | 9720.30 | 9841.36 | 9616.62 | 7984.29 | 11399.70 | 2608.78 | 2122.35 | 6.73e-10 | CTIO | SOI | SOI SDSS z' filter |
|
| 
 ≡ 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=3464.0369906742&id=CTIO/SOI.strom_u><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=3460.9121692672&id=CTIO/SOI.strom_u><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=3458.82526825&id=CTIO/SOI.strom_u><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=3464.3956581885&id=CTIO/SOI.strom_u><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=336.78180104283,3469.7272167445,0.7994&id=CTIO/SOI.strom_u><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}
