GRAVITY Collaboration,
A. Caratti o Garatti,
R. Fedriani,
R. Garcia Lopez,
M. Koutoulaki,
K. Perraut,
H. Linz,
W. Brandner,
P. Garcia,
L. Klarmann et al. (43 more)
A&A, 635 (2020) L12
Published online: 24 March 2020
DOI: 10.1051/0004-6361/202037583
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