Bibcode
Zurita, C.; Casares, J.; Corral-Santana, J. M.
Referencia bibliográfica
The Astronomer's Telegram, #4204
Advertised on:
6
2012
Número de citas
0
Número de citas referidas
0
Descripción
We performed BVRi imaging of the Neutron Star X-ray Binary MAXI
J1647-227 (Negoro et al., ATEL #4175; Kennea et al., ATEL #4178, #4192)
with the 2.5 m Nordic Optical Telescope, NOT, at the Observatorio del
Roque de los Muchachos, La Palma, from 18 to 20th June 2012. The target
was calibrated using four different Landolt (1992) standard fields
observed during the second night. Our average BVRi magnitudes are:
B=20.80+-0.10, V= 20.08+-0.06, R=19.72+-0.07, i=19.00+-0.10;
B=20.23+-0.05, V=19.96+-0.04, R=19.60+-0.06 , i=19.34+-0.06 and
B=20.44+-0.02, V= 20.09+-0.02, R=19.67+-0.02, i=19.20+-0.04 on June 18,
19 and 20 respectively.