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| pointing_error_1 [2018/04/13 03:06] – hivon | pointing_error_1 [2018/04/13 08:15] (current) – [Additional material] hivon |
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| Following the [[systematicswg/telecons/2018-02-21/start|2018-02-21 telecon]], | Following the [[systematicswg/telecons/2018-02-21/start|2018-02-21 telecon]], |
| I enclose {{:systematicswg:Hivon_Quickpol_pages20-23.pdf|a few slides}} ((there is a typo is the last equation of the 2nd page with a factor <math>\Omega_{\rm{pix}}</math> (pixel area) missing on the rhs member)) | I enclose {{:systematicswg:hivon_quickpol_pages20-23short-rot90.pdf|a few slides}} ((there is a typo is the last equation of the 2nd page with a factor <math>\Omega_{\rm{pix}}</math> (pixel area) missing on the rhs member)) |
| showing how the temperature signal affects the BB power spectrum measurement | showing how the temperature signal affects the BB power spectrum measurement |
| because of the reconstructed pointing error, which acts as an extra source of noise. It applies the formalism described in Appendix F of the QuickPol paper ([[http://adsabs.harvard.edu/abs/2017A&A...598A..25H| Hivon, Mottet & Ponthieu, 2017, A&A 598, A25]]). | because of the reconstructed pointing error, which acts as an extra source of noise. It applies the formalism described in Appendix F of the QuickPol paper ([[http://adsabs.harvard.edu/abs/2017A&A...598A..25H| Hivon, Mottet & Ponthieu, 2017, A&A 598, A25]]). |
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| ==== Additional material ==== | ==== Additional material ==== |
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| * 2018/03/06 06:53 \\ {{:systematicswg:hivon_pointing_noise_v3.png?300}} \\ Figure comparing the pointing error induced noise, | * 2018/03/06 06:53 \\ {{:systematicswg:hivon_pointing_noise_v3.png?50}} \\ Figure comparing the pointing error induced noise, |
| * to the instrumental noise (assumed arbitrarily to be 2 uK.arcmin in Q and U), | * <del>to the instrumental noise (assumed arbitrarily to be 2 uK.arcmin in Q and U)</del> **(see bug fix below)**, |
| * and to the BB modes from lensing, and from primordial tensorial modes of T/S in the range 10<sup>-2</sup> to 10<sup>-4</sup>. | * and to the BB modes from lensing, and from primordial tensorial modes of T/S in the range 10<sup>-2</sup> to 10<sup>-4</sup>. |
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| * 2018/03/07 11:34 \\ {{:systematicswg:hivon_pointing_noise_v3i1.png?300}} \\ Updated with a (polarized) instrumental noise of 0.62 uK.arcmin, more representative of [[baseline|PICO expected performances]]. | * 2018/03/07 11:34 \\ {{:systematicswg:hivon_pointing_noise_v3i1.png?50}} \\ Updated with a (polarized) instrumental noise of <del>0.62 uK.arcmin</del> (**see bug fix below**), more representative of [[baseline|PICO expected performances]]. |
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| | * **__2018/04/13: Bug fix__** \\ {{:systematicswg:hivon_pointing_noise_v3i2.png?400}} \\ Same plot as above, //with a correction of instrumental noise curves (in purple), really at 0.62 uK.arcmin this time.// |
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