What was the role of the Federalist Papers in the US Constitution?

The Federalist Papers were a series of articles written by Alexander Hamilton, John Jay, and James Madison, under the name "Publius," and published in newspapers between 1787 and 1788, to convince New York citizens to adopt the newly proposed Constitution of the United States. The essays may have played a minor role in securing ratification in NY, but they have a lasting value as the authoritative explanation of the Constitution and the form of government established in the United States. Though written for political purposes, they were later published under the title, The Federalist, and became one of the most important pieces of American political philosophy.