What is the typical rise time, in days, for a Type Ia supernova to reach its maximum light from the moment of explosion?

Answer

15 to 20 days

The time required for a Type Ia event to progress from the explosion onset until it reaches its peak brightness of approximately M = -19.3 is typically observed to be between 15 and 20 days.

What is the typical rise time, in days, for a Type Ia supernova to reach its maximum light from the moment of explosion?
astronomystarssupernovaexplosionLuminositypeak