  Using a deprojection technique, we study the X-ray properties of the galaxy
cluster Abell 1835 observed with Chandra, including temperature, abundance,
electron density, gas mass fraction, and total mass. A comparison with the
results without deprojection shows that the properties do not change much. When
we compare the results with those of XMM-Newton, the difference between the
temperature profiles derived from Chandra and XMM-Newton data still exists,
even if the point-spread function effect of XMM-Newton is corrected. To
investigate the reasons for the difference, we used the spectra to
cross-calibrate the temperatures. They show that the Chandra spectra can be
fitted well with XMM-Newton temperatures. Furthermore, we derive the electron
density profile from Chandra data with XMM-Newton temperatures and calculate
the projected mass, which is consistent with the XMM-Newton mass and a little
lower than the weak lensing mass at r_500. Thus, it seems that the temperature
derived from XMM-Newton may be more reliable.
