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Compare L19 w/Bovy for some chosen sight lines #29

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willclarkson opened this issue May 13, 2021 · 1 comment
Open

Compare L19 w/Bovy for some chosen sight lines #29

willclarkson opened this issue May 13, 2021 · 1 comment

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@willclarkson
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willclarkson commented May 13, 2021 •
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Sight-lines to watch:

  • Direction of Orion nebula - known to be problematic with DR2 (i.e. fraction of known YSOs - e.g. classified as so by Spitzer). Appears to be a background subtraction issue in Gaia Bp and Rp (spectral integration not PSF photometry) that moves these objects away from their expected positions in the CMD. Objects appear bluer than should be.
  • Pick some sight-lines without known YSOs - above problem far smaller.

For more, see Riello et al. 2021: Riello et al. 2021 A&A
@Thalos12
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Thalos12 commented May 13, 2021 •
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  • Green et al 2019: link
  • Lallement et al 2019: link

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@willclarkson @Thalos12