1570002

MAXI J1813-095 was discovered as a new transient by MAXI on 2018 February 19 and its position confirmed by Swift/XRT on February 20th. The source is mildly absorbed (N_H ~ 1.3e22) and shows a hard power-law in XRT (Gamma ~ 1.45). No source has been previously known at these coordinates. The source is likely an X-ray binary but for its exact nature broad-band spectra are necessary. INTEGRAL is crucial to obtain the high-energy spectrum a determine if the continuum rolls over and to measure the cutoff energy. This will narrow down the nature of the source (accreting black hole or neutron star white dwarf X-ray burster etc.). Furthermore by obtaining one revolution with INTEGRAL we will be able to investigate the timing behaviour and check for X-ray bursts or dips and coherent pulsations. [truncated! Please see actual data for full text]