Limits on the electromagnetic counterpart to S190814bv
Por:
Watson, A. M., Butler, N. R., Lee, W. H., Becerra, R. L., Pereyra, M., Angeles, F., Farah, A., Figueroa, L., Gonzalez-Buitrago, D., Quiros, F., Ruiz-Diaz-Soto, J., Tejada de Vargas, C., Tinoco, S. J., Wolfram, T.
Publicada:
1 mar 2020
Resumen:
We derive limits on any electromagnetic counterpart to the compact
binary merger S190814bv, whose parameters are consistent with the merger
of a black hole and a neutron star. We present observations with the new
wide-field optical imager DDOTI and also consider Swift/BAT observations
reported by Palmer et al. We show that Swift/BAT would have detected a
counterpart with similar properties to a typical on-axis short GRB at
the 98 per cent confidence level, whereas our DDOTI observations only
rule out such a counterpart at the 27 per cent confidence level. Neither
has sufficient sensitivity to rule out an off-axis counterpart like GW
170817. We compare the efficiency of Swift/BAT and DDOTI for future
observations, and show that DDOTI is likely to he about twice as
efficient as Swift/BAT for off-axis events up to about 100 Mpc.
Filiaciones:
Watson, A. M.:
Univ Nacl Autonoma Mexico, Inst Astron, Apartado Postal 70-264, Mexico City 04510, Cdmx, Mexico
Butler, N. R.:
Arizona State Univ, Sch Earth & Space Explorat, Tempe, AZ 85287 USA
Lee, W. H.:
Univ Nacl Autonoma Mexico, Inst Astron, Apartado Postal 70-264, Mexico City 04510, Cdmx, Mexico
Becerra, R. L.:
Univ Nacl Autonoma Mexico, Inst Astron, Apartado Postal 70-264, Mexico City 04510, Cdmx, Mexico
Pereyra, M.:
Univ Nacl Autonoma Mexico, Inst Astron, Ensenada 22860, Baja California, Mexico
Angeles, F.:
Univ Nacl Autonoma Mexico, Inst Astron, Apartado Postal 70-264, Mexico City 04510, Cdmx, Mexico
Farah, A.:
Univ Nacl Autonoma Mexico, Inst Astron, Apartado Postal 70-264, Mexico City 04510, Cdmx, Mexico
Figueroa, L.:
Univ Nacl Autonoma Mexico, Inst Astron, Ensenada 22860, Baja California, Mexico
Gonzalez-Buitrago, D.:
Univ Nacl Autonoma Mexico, Inst Astron, Ensenada 22860, Baja California, Mexico
Quiros, F.:
Univ Nacl Autonoma Mexico, Inst Astron, Ensenada 22860, Baja California, Mexico
Ruiz-Diaz-Soto, J.:
Univ Nacl Autonoma Mexico, Inst Astron, Apartado Postal 70-264, Mexico City 04510, Cdmx, Mexico
Tejada de Vargas, C.:
Univ Nacl Autonoma Mexico, Inst Astron, Ensenada 22860, Baja California, Mexico
Tinoco, S. J.:
Univ Nacl Autonoma Mexico, Inst Astron, Apartado Postal 70-264, Mexico City 04510, Cdmx, Mexico
Wolfram, T.:
Arizona State Univ, Sch Earth & Space Explorat, Tempe, AZ 85287 USA
|