STELLA :STELLA Robotic Observatory STELLA/WiFSIP :The Wide Field STELLA Imaging Photometer (WIFSThe Wide Field STELLA Imaging Photometer (WIFSIP) is the large-format CCD imager and photometer for STELLA.IP) is the large-format CCD imager and photometer for STELLA. |
| STELLA/WiFSIP.Strom_u | 3495.78 | 3499.80 | 3497.61 | 3291.35 | 3733.58 | 308.67 | 1284.74 | 3.15e-9 | STELLA | WiFSIP | STELLA WiFSIP Stromgren u filter | | STELLA/WiFSIP.Sloan_u | 3559.94 | 3572.85 | 3600.55 | 3081.19 | 3995.50 | 491.88 | 1542.24 | 3.57e-9 | STELLA | WiFSIP | STELLA WiFSIP Sloan u filter | | STELLA/WiFSIP.Sloan_u | Filter Description | Filter ID (?) : | STELLA/WiFSIP.Sloan_u |
| Description (?) : | STELLA WiFSIP Sloan u filter |
| Phot.System (?) : | SDSS |
| Detector Type (?) : | Energy counter |
| Band Name (?) : | u |
| Obs. Facility (?) : | STELLA |
| Instrument (?) : | WiFSIP |
| Comments (?) : | ------ |
| | Mathematical properties | Property | Calculated | Specified | Unit | | λref (?) : |
3559.94 | ------- | (Angstrom) |
| λmean (?) : |
3572.85 | ------- | (Angstrom) |
| λcen (?) : |
3581.15 | ------- | (Angstrom) |
| λeff (?) : |
3600.55 | ------- | (Angstrom) |
| λpeak (?) : |
3615.00 | ------- | (Angstrom) |
| λpivot (?) : |
3559.94 | ------- | (Angstrom) |
| λphot (?) : |
3610.29 | ------- | (Angstrom) |
| λmin (?) : |
3081.19 | ------- | (Angstrom) |
| λmax (?) : |
3995.50 | ------- | (Angstrom) |
| Weff (?) : |
491.88 | ------- | (Angstrom) |
| FWHM (?) : |
498.14 | ------- | (Angstrom) |
| Af/AV (?) : |
1.58 | ------- | () |
| Fsun (?) : |
102.52 | ------- | (erg/cm2/s/A) |
| Transmission
Data file: ascii, VOTable Reference for filter response:
STELLA WiFSIP Transmission components: Filter | | Calibration properties
Vega System | Property | Specified | Calculated | Unit | | Zero Point (?) : |
------- |
3.56642e-9 | (erg/cm2/s/A) |
| |
------- |
1542.24 | (Jy) |
| ZP Type (?) : |
Pogson |
| PhotCal ID (?) : |
STELLA/WiFSIP.Sloan_u/Vega |
| |
AB System | Property | Specified | Calculated | Unit | | Zero Point (?) : |
------- |
8.39669e-9 | (erg/cm2/s/A) |
| |
------- |
3631.00 | (Jy) |
| ZP Type (?) : |
Pogson |
| PhotCal ID (?) : |
STELLA/WiFSIP.Sloan_u/AB |
| |
ST System | Property | Specified | Calculated | Unit | | Zero Point (?) : |
------- |
3.631e-9 | (erg/cm2/s/A) |
| |
------- |
1570.16 | (Jy) |
| ZP Type (?) : |
Pogson |
| PhotCal ID (?) : |
STELLA/WiFSIP.Sloan_u/ST |
| |
|
Filter added: 2015-12-07 14:13:52
Last update: 2020-12-10 16:34:03 | | STELLA/WiFSIP.Bessel_U | 3637.52 | 3651.49 | 3704.35 | 3176.21 | 4132.19 | 530.94 | 1871.17 | 4.09e-9 | STELLA | WiFSIP | STELLA WiFSIP Bessel U filter | | STELLA/WiFSIP.Strom_v | 4102.00 | 4103.31 | 4101.99 | 3946.55 | 4268.95 | 186.47 | 4200.74 | 7.48e-9 | STELLA | WiFSIP | STELLA WiFSIP Stromgren v filter | | STELLA/WiFSIP.Bessel_B | 4343.29 | 4381.07 | 4336.91 | 3775.38 | 5744.24 | 979.49 | 4033.54 | 6.43e-9 | STELLA | WiFSIP | STELLA WiFSIP Bessel B filter | | STELLA/WiFSIP.Strom_b | 4665.15 | 4666.31 | 4664.02 | 4502.12 | 4841.89 | 185.38 | 4219.51 | 5.82e-9 | STELLA | WiFSIP | STELLA WiFSIP Stromgren b filter | | STELLA/WiFSIP.Sloan_g | 4686.09 | 4747.86 | 4647.02 | 3883.22 | 5640.78 | 1463.41 | 3944.35 | 5.48e-9 | STELLA | WiFSIP | STELLA WiFSIP Sloan g filter | | STELLA/WiFSIP.Strom_y | 5503.81 | 5505.14 | 5502.58 | 5306.36 | 5709.38 | 210.94 | 3593.47 | 3.56e-9 | STELLA | WiFSIP | STELLA WiFSIP Stromgren y filter | | STELLA/WiFSIP.Sloan_r | 6162.73 | 6199.95 | 6121.14 | 5350.83 | 7028.47 | 1302.88 | 3159.78 | 2.53e-9 | STELLA | WiFSIP | STELLA WiFSIP Sloan r filter | | STELLA/WiFSIP.Bessel_R | 6381.50 | 6451.40 | 6313.53 | 5474.00 | 8523.42 | 1298.89 | 3040.17 | 2.29e-9 | STELLA | WiFSIP | STELLA WiFSIP Bessel R filter | | STELLA/WiFSIP.Sloan_i | 7663.04 | 7695.26 | 7628.04 | 6810.24 | 8546.36 | 1354.18 | 2527.78 | 1.3e-9 | STELLA | WiFSIP | STELLA WiFSIP Sloan i filter | | STELLA/WiFSIP.Bessel_I | 8699.30 | 8858.90 | 8578.37 | 7025.87 | 11000.00 | 3006.02 | 2273.92 | 9.26e-10 | STELLA | WiFSIP | STELLA WiFSIP Bessel I filter | | STELLA/WiFSIP.Sloan_z | 9571.54 | 9664.65 | 9499.36 | 8186.45 | 11000.00 | 2633.98 | 2139.25 | 7.11e-10 | STELLA | WiFSIP | STELLA WiFSIP Sloan z filter |
|
| 
 ≡ 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://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.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=3572.8502379293&id=STELLA/WiFSIP.Sloan_u><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=3600.5547575381&id=STELLA/WiFSIP.Sloan_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=3559.9425066156&id=STELLA/WiFSIP.Sloan_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=3610.2877087171&id=STELLA/WiFSIP.Sloan_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=491.87618626284,3581.1518082337,0.68953&id=STELLA/WiFSIP.Sloan_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.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://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}
