Table 2.

Observational support for model or theory predictions: agreement (✓); not inconsistent (∼); no measurements available (–); no agreement (×).

Pulse physical property	Wave theories			Pseudo-wave theories/models
	Fast-mode		Slow-mode soliton	Field-line stretchinga	Current shell	Continuous reconnection
	Small amp. linear wave	Large amp. wave/shock
Phase velocity [v]	✓	✓	∼	∼	×	×
Acceleration [a]	✓	✓	✓	×	×	×
Broadening	✓	✓	✓	✓	–	–
ΔB	–	–	–	–	–	–
ΔT	✓	✓	✓	✓	✓	×
$\mathrm{\Delta }{n}_{\mathrm{e}}$	✓	✓	✓	✓	✓	×
Height	✓	✓	✓	✓	×	×
Area bounded	✓	✓	✓	×	×	×
Rotation	∼	∼	∼	✓	✓	✓
Reflection	✓	✓	✓	×	×	×
Refraction	✓	✓	✓	×	×	×
Transmission	✓	✓	✓	×	×	×
Stationary fronts	✓	✓	×	✓	✓	✓
Co-spatial Type II	×	✓	×	×	×	×
Moreton wave	×	✓	×	×	×	✓

^aDescribing only the slower component of the two-wave scenario (i.e. the density perturbation component).