The Chandra Deep Field-North Survey. VIII. X-Ray Constraints on Spiral Galaxies from 0.4 < z < 1.5

We present a statistical X-ray study of spiral galaxies in the Hubble Deep Field-North and its flanking fields using the Chandra Deep Field-North 1 Ms data set. We find that ~L* galaxies with 0.4<~z<~1.5 have X-ray luminosity and ratios of X-ray to B-band luminosity similar to those in the local universe. The data, however, are consistent with an increase in both by a factor of ~2-3. We have also determined that typical spiral galaxies at 0.4<~z<~1.5 should be detected in the 0.5-2 keV band in the flux range (3-6) × 10^-18 erg cm^-2 s^-1.