We report the discovery of a bright , brown dwarf companion to the star HIP 64892 , imaged with VLT/SPHERE during the SHINE exoplanet survey .
The host is a B9.5V member of the Lower-Centaurus-Crux subgroup of the Scorpius Centaurus OB association .
The measured angular separation of the companion ( 1.2705 \pm 0.0023 ” ) corresponds to a projected distance of 159 \pm 12 AU .
We observed the target with the dual-band imaging and long-slit spectroscopy modes of the IRDIS imager to obtain its SED and astrometry .
In addition , we reprocessed archival NACO L-band data , from which we also recover the companion .
Its SED is consistent with a young ( ¡30 Myr ) , low surface gravity object with a spectral type of M9 _ { \gamma } \pm 1 .
From comparison with the BT-Settl atmospheric models we estimate an effective temperature of T _ { \textrm { eff } } = 2600 \pm 100 K , and comparison of the companion photometry to the COND evolutionary models yields a mass of \sim 29 - 37 M _ { \text { J } } at the estimated age of 16 ^ { +15 } _ { -7 } Myr for the system .
HIP 64892 is a rare example of an extreme-mass ratio system ( q \sim 0.01 ) and will be useful for testing models relating to the formation and evolution of such low-mass objects .