Theoretical constraints on brane inflation and cosmic superstring
  radiation
  We analyze theoretical constraints on the consistency of brane inflation
leading to cosmic superstring formation and on the subsequent radiation of
these cosmic superstrings. We first investigate the implications of recently
elucidated supergravity constraints on models of brane inflation. We show that
both D3/D7 and D3/anti-D3 brane inflation are subject to non-trivial
constraints. Both models can be shown to satisfy those constraints, but for the
case of D3/D7 there may be important consequences for the inflationary
mechanism. We then analyze the strong theoretical constraints on the types of
allowed radiation by cosmic superstrings, should they be formed; such
constraints do not apply to their field theoretical analogues. We argue that in
a warped background where one might expect axionic radiation to be enhanced
relative to gravitational radiation, neithe F-strings nor D-strings can emit
axionic radiation, while FD-strings cannot give rise to
Neveu-Schwarz--Neveu-Schwarz particle emission, and their Ramond-Ramond
particle emission is not well-defined.
