Observations of Eddington-limited type-I X-ray bursts from 4U 1812-12

During more than 3 years (August 1996-October 1999) monitoring of a 40 degr ees x 40 degrees sky region around the Galactic Centre by the Wide Field Ca meras on board BeppoSAX, a total of 8 type-1 bursts have been detected from a sky position consistent with that of 4U 1812-12, a likely neutron-star l ow-mass Xray binary. We present the results of a detailed study of the burs ts of 4U 1812-12, about 15 years after the last reported observations of X- ray bursts from this source (Murakami et al. 1983). Clear evidence for phot ospheric radius expansion due to Eddington-limited burst luminosity is pres ent in most of the observed events, allowing an accurate estimate of the so urce distance (similar to 4 kpc) and its burst parameters.