Polarimetry and Astrometry of NIR Flares as Event Horizon Scale, Dynamical Probes for the Mass of Sgr A*
| Author | |
| Abstract |
We present new astrometric and polarimetric observations of flares from Sgr A* obtained with GRAVITY, the near-infrared interferometer at ESO s Very Large Telescope Interferometer (VLTI), bringing the total sample of well-covered astrometric flares to four and polarimetric ones to six, where we have for two flares good coverage in both domains. All astrometric flares show clockwise motion in the plane of the sky with a period of around an hour, and the polarization vector rotates by one full loop in the same time. |
| Year of Publication |
2023
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| Date Published |
2023-09
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| Journal Title |
Astronomy & Astrophysics
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| Volume |
677
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| Start Page or Article ID (correct) |
L10
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| DOI | |
| Download citation | |
| JILA PI | |
Journal Article
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| JILA Topics | |
| Publication Status |
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