Aerosol generating article, aerosol generating device, and aerosol generating system

An aerosol generating system comprising:

• an aerosol generating device including a battery and a heater for generating heat from electric power supplied by the battery;
• and
• an aerosol generating article accommodated in the aerosol generating device to generate an aerosol when heated by the heater,
• wherein the aerosol generating article comprises:
• a base portion configured to generate the aerosol when heated;
• a medium portion arranged at a downstream end of the base portion;
• and
• a thermally conductive wrapper comprising a first wrapper portion surrounding the base portion and a second wrapper portion surrounding the medium portion, and
• wherein a thickness of the first wrapper portion is less than a thickness of the second wrapper portion such that the amount of heat transferred through the first wrapper portion is greater than the amount of heat transferred through the second wrapper portion.