Here is a list of my collaborators:

The number of joint (journal) papers, and the year of the most recent joint publication are listed in paranthesis

[last updated August 12, 2003 ]

2. Martin Rees (6, 2003)

3. Gil Holder (5, 2003)

4. Lloyd Knox (5, 2003)

5. Xiaohui Fan (3, 2003)

6. Gunther Hasinger (3, 1994)

7. Lam Hui (3, 2003)

8. Walter Lewin (3, 1994)

9. Gene Magnier (3, 1994)

10. Peng Oh (3, 2002)

11. Wolfgang Pietsch (3, 1994)

12. Rodrigo Supper (3, 1994)

13. Joachim Trumper (3, 1994)

14. Jan van Paradijs (3, 1994)

15. Tom Abel (2, 2001)

16. Paolo Battinelli (2, 1994)

17. Renyue Cen (2, 2002)

18. Asantha Cooray (2, 2001)

19. Manoj Kaplinghat (2, 2003)

20. Piero Madau (2, 2001)

21. Kristen Menou (2, 2001)

22. Joe Mohr (2, 2001)

23. Jerry Ostriker (2, 2003)

24. Marco Spaans (2, 2000)

25. David Spergel (2, 2003)

26. Anthony Aguirre (1, 2000)

27. Tal Alexander (1, 2002)

28. Rennan Barkana (1, 2001)

29. Mark Birkinshaw (1, 2003)

30. Michael Chu (1, 2003)

31. Luca Ciotti (1, 2003)

32. Julie Comerford (1, 2002)

33. Mark Dijkstra (1, 2003)

34. Daniel Eisenstein (1, 2001)

35. Steen Hansen (1, 2003)

36. Wayne Hu (1, 2003)

37. Richard Lester (1, 1994)

38. Chung-Pei Ma (1, 2003)

39. Sandor Molnar (1, 2003)

40. Richard Mushotzky (1, 2003)

41. Vijay Narayanan (1, 2002)

42. Eliot Quataert (1, 2000)

43. Mario G. Santos (1, 2003)

44. Joop Schaye (1, 2002)

45. Constantinos Skordis (1, 2003)

46. Anne Thoul (1, 1996)

47. Ed Turner (1, 2003)

48. Licia Verde (1, 2002)

49. David H. Weinberg (1, 2003)

50. Matias Zaldarriaga (1, 2002)