• DOI:10.3847/1538-3881/aa6ff9
Corpus ID: 59125676

An Updated 2017 Astrometric Solution for Betelgeuse

@article{Harper2017AnU2,
  title={An Updated 2017 Astrometric Solution for Betelgeuse},
  author={G. Harper and A. Brown and E. Guinan and E. O’Gorman and A. Richards and P. Kervella and L. Decin},
  journal={The Astronomical Journal},
  year={2017},
  volume={154},
  pages={11}
}

• G. Harper, A. Brown, +4 authors L. Decin
• Published 2017
• Physics
• The Astronomical Journal

We provide an update for the astrometric solution for the Type II supernova progenitor Betelgeuse using the revised Hipparcos Intermediate Astrometric Data (HIAD) of van Leeuwen, combined with existing VLA and new e-MERLIN and ALMA positions. The 2007 Hipparcos refined abscissa measurements required the addition of so-called Cosmic Noise of 2.4 mas to find an acceptable 5-parameter stochastic solution. We find that a measure of radio Cosmic Noise should also be included for the radio positions… Expand

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