Determining the motion of the local group using type IA supernovae light curve shapes

We have measured our Galaxy's motion relative to distant galaxies in which Type Ia supernovae (SNe Ia) have been observed. The effective recession velocity of this sample is 7000 km s^-1^, which approaches the depth of the survey of brightest cluster galaxies by Lauer Maza et al. 1994), we find the best solution for the motion of the Local Group in this frame is 600 +/- 350 km s ^-^ in the direction l = 260ᵈeg^, b = +54ᵈeg^, with a 1 σ error ellipse that measures 90ᵈeg^ x 25ᵈeg^. This solution is consistent with the rest frame of the cosmic microwave background (CMB) as determined by the COBE measurement of the dipole temperature anisotropy, and also with many plausible bulk flows expected to accompany observed density variations. It is inconsistent with the velocity observed by Lauer & Postman.