MMT :The MMT Observatory. MMT/MegaCam :Megacam is a CCD mosaic camera for the converted MMT. |
| MMT/MegaCam.u_MMT_filter | 3535.3 | 3550.2 | 3207 | 3906 | 501.6 | 1430.7 | MMT | MegaCam | Megacam u' at MMT (filter only) | | MMT/MegaCam.u_Mag_filter | 3565.8 | 3599.1 | 3176 | 3959 | 548.1 | 1589.6 | MMT | MegaCam | Megacam u' at Magellan (filter only) | | MMT/MegaCam.u_MMT | 3612.7 | 3632.1 | 3235 | 3914 | 338.0 | 1552.2 | MMT | MegaCam | Megacam u' at MMT | | MMT/MegaCam.u_Mag | 3646.9 | 3681.7 | 3221 | 3963 | 371.8 | 1762.9 | MMT | MegaCam | Megacam u' at Magellan | | MMT/MegaCam.u_Mag | Filter Description | Filter ID (?) : | MMT/MegaCam.u_Mag |
| Description (?) : | Megacam u' at Magellan |
| Phot.System (?) : | ------ |
| Detector Type (?) : | Energy counter |
| Band Name (?) : | ------ |
| Obs. Facility (?) : | MMT |
| Instrument (?) : | MegaCam |
| Comments (?) : | ------ |
| | Mathematical properties | Property | Calculated | Specified | Unit | | λmean (?) : |
3646.92 | ------- | (Angstrom) |
| λcen (?) : |
3667.82 | ------- | (Angstrom) |
| λeff (?) : |
3681.73 | ------- | (Angstrom) |
| λpeak (?) : |
3830.00 | ------- | (Angstrom) |
| λpivot (?) : |
3636.64 | ------- | (Angstrom) |
| λphot (?) : |
3688.69 | ------- | (Angstrom) |
| λmin (?) : |
3221.39 | ------- | (Angstrom) |
| λmax (?) : |
3962.59 | ------- | (Angstrom) |
| Weff (?) : |
371.76 | ------- | (Angstrom) |
| FWHM (?) : |
401.70 | ------- | (Angstrom) |
| Af/AV (?) : |
1.55 | ------- | () |
| Fsun (?) : |
------- | ------- | (erg/cm2/s/A) |
| Transmission
Data file: ascii, VOTable Reference for filter response:
MegaCam Filters Transmission components: Filter + Instrument + Atmosphere | | Calibration properties
Vega System | Property | Specified | Calculated | Unit | | Zero Point (?) : |
------- |
3.899e-9 | (erg/cm2/s/A) |
| |
------- |
1762.87 | (Jy) |
| ZP Type (?) : |
Pogson |
| PhotCal ID (?) : |
MMT/MegaCam.u_Mag/Vega |
| |
AB System | Property | Specified | Calculated | Unit | | Zero Point (?) : |
------- |
8.031e-9 | (erg/cm2/s/A) |
| |
------- |
3631.00 | (Jy) |
| ZP Type (?) : |
Pogson |
| PhotCal ID (?) : |
MMT/MegaCam.u_Mag/AB |
| |
ST System | Property | Specified | Calculated | Unit | | Zero Point (?) : |
------- |
3.631e-9 | (erg/cm2/s/A) |
| |
------- |
1641.76 | (Jy) |
| ZP Type (?) : |
Pogson |
| PhotCal ID (?) : |
MMT/MegaCam.u_Mag/ST |
| |
|
Filter added: 2017-08-08 03:09:43
Last update: 2020-03-23 12:58:04 | | MMT/MegaCam.g_Mag_filter | 4562.1 | 4486.2 | 3764 | 5430 | 1234.8 | 3961.3 | MMT | MegaCam | Megacam g' at Magellan (filter only) | | MMT/MegaCam.g_Mag | 4657.1 | 4581.3 | 3772 | 5431 | 972.9 | 3952.5 | MMT | MegaCam | Megacam g' at Magellan | | MMT/MegaCam.g_MMT_filter | 4777.2 | 4688.2 | 3959 | 5615 | 1313.1 | 3958.9 | MMT | MegaCam | Megacam g' at MMT (filter only) | | MMT/MegaCam.g_MMT | 4814.0 | 4726.8 | 3972 | 5614 | 1195.3 | 3941.6 | MMT | MegaCam | Megacam g' at MMT | | MMT/MegaCam.r_Mag | 6346.1 | 6247.8 | 5465 | 7467 | 1411.9 | 3088.4 | MMT | MegaCam | Megacam r' at Magellan | | MMT/MegaCam.r_MMT | 6373.7 | 6285.9 | 5400 | 7303 | 1319.9 | 3071.4 | MMT | MegaCam | Megacam r' at MMT | | MMT/MegaCam.r_Mag_filter | 6376.9 | 6275.2 | 5465 | 7471 | 1472.4 | 3072.7 | MMT | MegaCam | Megacam r' at Magellan (filter only) | | MMT/MegaCam.r_MMT_filter | 6397.5 | 6307.3 | 5403 | 7317 | 1329.3 | 3059.5 | MMT | MegaCam | Megacam r' at MMT (filter only) | | MMT/MegaCam.i_MMT | 7815.1 | 7723.1 | 6827 | 8954 | 1276.0 | 2483.5 | MMT | MegaCam | Megacam i' at MMT | | MMT/MegaCam.i_Mag | 7886.7 | 7818.6 | 7034 | 8892 | 1118.9 | 2456.0 | MMT | MegaCam | Megacam i' at Magellan | | MMT/MegaCam.i_MMT_filter | 7923.1 | 7826.6 | 6839 | 9013 | 1659.8 | 2444.9 | MMT | MegaCam | Megacam i' at MMT (filter only) | | MMT/MegaCam.i_Mag_filter | 7966.9 | 7896.0 | 7042 | 8954 | 1401.6 | 2427.0 | MMT | MegaCam | Megacam i' at Magellan (filter only) | | MMT/MegaCam.z_Mag | 9063.5 | 9008.8 | 8023 | 10812 | 1036.0 | 2243.4 | MMT | MegaCam | Megacam z' at Magellan | | MMT/MegaCam.z_MMT | 9069.7 | 9014.7 | 8087 | 10833 | 1096.3 | 2241.3 | MMT | MegaCam | Megacam z' at MMT | | MMT/MegaCam.z_Mag_filter | 10301.2 | 9960.0 | 8054 | 12190 | 3652.0 | 2004.0 | MMT | MegaCam | Megacam z' at Magellan (filter only) | | MMT/MegaCam.z_MMT_filter | 10468.0 | 10063.0 | 8108 | 12530 | 4059.3 | 1965.9 | MMT | MegaCam | Megacam z' at MMT (filter only) |
|
© SVO, 6368 filters available, Last update: 2020-08-07 | 
 ≡ 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=3646.924378206&id=MMT/MegaCam.u_Mag><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=3681.7312559967&id=MMT/MegaCam.u_Mag><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=3636.6368286339&id=MMT/MegaCam.u_Mag><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=3688.6931968417&id=MMT/MegaCam.u_Mag><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=371.7622926849,3667.8197263812,0.2019&id=MMT/MegaCam.u_Mag><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}