Title: 2011 term per curiam opinions of the Supreme Court of the United States
Content:  Chief Justice: John Roberts Associate Justices: Antonin Scalia, Anthony Kennedy, Clarence Thomas, Ruth Bader Ginsburg, Stephen Breyer, Samuel Alito, Sonia Sotomayor, Elena Kagan
Title: 2011 term opinions of the Supreme Court of the United States
Content:  The 2011 term of the Supreme Court of the United States began October 3, 2011, and concluded September 30, 2012. The table illustrates which opinion was filed by each justice in each case and which justices joined each opinion.
Title: Supreme Court of the United States
Content:  There are currently nine justices on the Supreme Court: Chief Justice John Roberts and eight associate justices. Among the current members of the Court, Clarence Thomas is the longest-serving justice, with a tenure of days  as of ; the most recent justice to join the court is Amy Coney Barrett, whose tenure began on October 27, 2020.
Title: Demographics of the Supreme Court of the United States
Content:  Of the 115 justices, 110 (95.7%) have been men. All Supreme Court justices were males until 1981, when Ronald Reagan fulfilled his 1980 campaign promise to place a woman on the Court, which he did with the appointment of Sandra Day O'Connor. O'Connor was later joined on the Court by Ruth Bader Ginsburg, appointed by Bill Clinton in 1993. After O'Connor retired in 2006, Ginsburg was joined by Sonia Sotomayor and Elena Kagan, who were successfully appointed to the Court in 2009 and 2010, respectively, by Barack Obama. In September 2020, following Ginsburg's death, Donald Trump nominated Amy Coney Barrett to succeed her. Barrett was confirmed the following month. The only other woman to be nominated to the Court 
Title: List of justices of the Supreme Court of the United States
Content:  Since the Supreme Court was established in 1789, 115 people have served on the Court. The length of service on the Court for the 106 non-incumbent justices ranges from William O. Douglas's 36 years, 211 days to the 163-day tenure of Thomas Johnson. As of, the length of service for the nine incumbent justices ranges from Clarence Thomas' to Amy Coney Barrett's. Five individuals were confirmed for associate justice, and later appointed chief justice separately: John Rutledge, Edward Douglass White, Charles Evans Hughes, Harlan F. Stone, and William Rehnquist. While listed twice, each of them has been assigned only one index number. The justices of the Supreme Court are:
Title: Supreme Court of the United States
Content:  Italian-American justice. Marshall was succeeded by African-American Clarence Thomas in 1991. O'Connor was joined by Ruth Bader Ginsburg in 1993. After O'Connor's retirement Ginsburg was joined in 2009 by Sonia Sotomayor, the first Hispanic and Latina justice, and in 2010 by Elena Kagan. After Ginsburg's death on September 18, 2020, Amy Coney Barrett was confirmed as the fifth woman in the Court's history on October 26, 2020. There have been six foreign-born justices in the Court's history: James Wilson (1789–1798), born in Caskardy, Scotland; James Iredell (1790–1799), born in Lewes, England; William Paterson (1793–1806), born in County Antrim, Ireland; David Brewer (1889–1910), born to American missionaries in Smyrna, Ottoman Empire (now Izmir, Turkey); George Sutherland (1922–1939), born in Buckinghamshire, England; and Felix Frankfurter (1939–1962), born in Vienna, Austria-Hungary (now in Austria).
Title: Supreme Court of the United States
Content:  The Court currently has six male and three female justices. Among the nine justices, there is one African-American justice (Justice Thomas) and one Hispanic justice (Justice Sotomayor). One of the justices was born to at least one immigrant parent: Justice Alito's father was born in Italy. At least six justices are Roman Catholics and two are Jewish. It is unclear whether Neil Gorsuch considers himself a Catholic or an Episcopalian. Historically, most justices have been Protestants, including 36 Episcopalians, 19 Presbyterians, 10 Unitarians, 5 Methodists, and 3 Baptists. The first Catholic justice was Roger Taney in 1836, and 1916 saw the appointment of the first Jewish justice, Louis Brandeis. In recent years the historical situation has reversed, as most recent justices have been either Catholic or Jewish. All current justices, except 
Title: Lincoln's Inn Society
Content: Stephen Breyer '64 — Associate Justice of the Supreme Court ; Anthony Kennedy '61 — Associate Justice of the Supreme Court ; David Souter '66 — Associate Justice of the Supreme Court ; Laurence Silberman '61 – Senior Judge, United States Court of Appeals for the District of Columbia Circuit Joseph Califano '55 — Former U.S. Secretary of Health, Education and Welfare ; Jim Cooper '80 — U.S. Congressman from Tennessee ; Bob Graham '62 — Former U.S. Senator from Florida ; Ken Mehlman '91 — Chairman of the Republican National Committee ; Larry Pressler '71 — Former U.S. Senator from South 
Title: Demographics of the Supreme Court of the United States
Content:  Some states have been over-represented, partly because there were fewer states from which early justices could be appointed. New York has produced fifteen justices, three of whom have served as chief justice. Ohio has produced ten justices, including two chief justices; Massachusetts nine (including Stephen Breyer and Elena Kagan); and Virginia eight, including three chief justices. There have been six justices each from Pennsylvania, Tennessee, and Maryland (the latter including current chief justice John Roberts and current associate justice Brett Kavanaugh); and five each from Kentucky and New Jersey. States that have produced four justices include California, Illinois (one chief and three associates each), and Georgia. A handful of justices were 
Title: 2011 term per curiam opinions of the Supreme Court of the United States
Content:  The Supreme Court of the United States handed down thirteen per curiam opinions during its 2011 term, which began October 3, 2011 and concluded September 30, 2012. Because per curiam decisions are issued from the Court as an institution, these opinions all lack the attribution of authorship or joining votes to specific justices. All justices on the Court at the time the decision was handed down are assumed to have participated and concurred unless otherwise noted.

Question: who are the 9 justices of the supreme court 2011?
Answer: John Roberts.