SDSS J083253.18+064316.7: one strange object with double-peaked narrow
  H\alpha but single-peaked narrow H\beta
  In this letter, we firstly report one unique object SDSS J0832+0643 with
particular features of narrow balmer emission lines: double-peaked narrow
H\alpha but single-peaked narrow H\beta. The particular features can not be
expected by currently proposed kinematic models for double-peaked narrow
emission lines, because the proposed kinematic models lead to similar line
profiles of narrow balmer emission lines. However, due to radiative transfer
effects, the non-kinematic model can be naturally applied to well explain the
particular features of narrow balmer emission lines: larger optical depth in
H\alpha than 10 leads to observed double-peaked narrow H\alpha, but smaller
optical depth in H\beta around 2 leads to observed single-peaked narrow H\beta.
Therefore, SDSS J0832+0643 can be used as strong evidence to support the
non-kinematic model for double-peaked narrow emission lines.
