Rene A. Ong - Publications & Talks


	RENE ONG - Publications, Talks, etc.

Recent Publications

Talks and Conference Papers

Publications Since 1996 :

1. The Energy Spectrum of the Blazar Markarian 421 above 130 GeV, J.E. Carson, J. Kildea, R.A. Ong et al., Accepted by Astrophys. J. (2007). Paper: PDF.

2. Whipple 10m Observations of LSI +61 303: 2005-2006, A. Smith et al., Submitted to Astrophys. Space Sci. (2007).

3. Observations of the Unidentified TeV Gamma-Ray Source TeV J2032+4130 with the Whipple Observatory 10 m Telescope, A. Konopelko et al., Astrophys. J. 658, 1062 (2007). Paper: PDF.

4. Very High Energy Observations of Gamma-Ray Burst Locations with the Whipple Telescope, D. Horan et al., Astrophys. J. 655, 396 (2007). Paper: PDF.

5. TeV Gamma-Ray Observations of the Perseus and Abell 2029 Galaxy Clusters, J.S. Perkins et al., Astrophys. J. 644, 148 (2006). Paper: PDF.

6. The First VERITAS Telescope, J. Holder et al., Astroparticle Phys. 25, 391 (2006). Paper: PDF.

7. A Search for Primordial Black Hole Evaporations using the Whipple Gamma-ray Telescope, E.T. Linton et al., J. Cosmology and Astroparticle Phys. 01, 013 (2006). Paper: PDF.

8. A Multi-wavelength View of the TeV Blazar Markarian 421: Correlated Variability, Flaring, and Spectral Evolution , M. Blazejowski et al., Astrophys. J. 630, 130 (2005). Paper: PDF.

9. Observations of the BL Lac Object 3C 66A with STACEE , D.A. Bramel et al., Astrophys. J. 629, 108 (2005). Paper: PDF.

10. A Survey of Unidentified EGRET Sources at Very High Energies , S.J. Fegan et al., Astrophys. J. 624, 638 (2005). Paper is 40 MB.

11. Spectrum of Very High Energy Gamma Rays from the Blazar 1ES 1959+650 During Flaring Activity in 2002, M.K. Daniel et al., Astrophys. J. 621, 181 (2005). Paper: PDF.

12. A Search for TeV Gamma-Ray Emission from High-Peaked Flat-Spectrum Radio Quasars using the Whipple Air Cherenkov Telescope, A.D. Falcone et al., Astrophys. J. 613, 710 (2004). Paper: PDF.

13. Observation of M87 at 400 GeV with the Whipple 10 Meter Telescope, S. Le Bohec et al., Astrophys. J. 610, 156 (2004). Paper: PDF.

14. TeV Gamma-Ray Observations of the Galactic Center, K. Kosack et al., Astrophys. J. 608, L97 (2004). Paper: PDF.

15. High-Energy Gamma-Ray Observations of W Comae with the Solar Tower Atmospheric Cherenkov Effect Experiment (STACEE), R.A. Scalzo et al., Astrophys. J. 607, 778 (2004). Paper: PDF.

16. Constraints on the Very High Energy Emission from BL Lacertae Objects, D. Horan et al., Astrophys. J. 603, 51 (2004). Paper: PDF.

17. Astrophysics around 100 GeV with STACEE, D.A. Williams et al., New Astr. Rev. 48, 359 (2004).

18. VERITAS: the Very Energetic Radiation Imaging Telescope Array System, F. Krennrich et al., New Astr. Rev. 48, 345 (2004).

19. Search for High-Energy Gamma Rays from an X-ray Selected Blazar Sample, I. de la Calle Perez et al., Astrophys. J. 599, 909 (2003). Paper: PDF.

20. Search for TeV Emissions from Pulsars in Binary Systems, T.A. Hall et al., Astrophys. J. 583, 853 (2003). Paper: PDF.

21. Detection of TeV Gamma Rays from the BL Lacertae Object 1ES 1959+650 with the Whipple 10 Meter Telescope, J. Holder et al., Astrophys. J. 583, L9 (2003). Paper: PDF.

22. The TeV Spectrum of H1426+428, D.Petry et al.,
Astrophys. J. 580, 102 (2002). Paper: PDF.

23. STACEE Observations of Markarian 421 During an Extended Gamma-Ray Outburst, L.M.Boone et al., Astrophys. J. 575, L5 (2002). Paper: PDF.

24. Discovery of Spectral Variability of Markarian 421 at TeV Energies, F.Krennrich et al.,
Astrophys. J. 575, L9 (2002). Paper: PDF.

25. Detection of the BL Lacertae Object H1426+428 at TeV Gamma-Ray Energies, D. Horan et al., Astrophys. J. 571, 753 (2002). Paper: PDF.

26. The STACEE-32 Ground-Based Gamma-Ray Detector, D.S. Hanna et al., Nucl. Inst. Meth. Phys. Res. A491, 126 (2002).
Preprint: PDF.

27. VERITAS: the Very Energetic Radiation Imaging Telescope Array System, T.C. Weekes et al.,
Astropart. Phys. 17, 221 (2002). Paper: PDF.

28. Cutoff in the TeV Energy Spectrum of Markarian 421 During Strong Flares in 2001, F. Krennrich et al.,
Astrophys. J. 560, L45 (2001). Paper: PDF.

29. Measurement of the Cosmic Ray Energy Spectrum and Composition from 10¹⁷ to 10^18.3 eV using a Hybrid
Fluorescence Technique, T. Abu-Zayyad et al., Astrophys. J. 557, 686 (2001). Paper: PDF.

30. A Measurement of the Average Longitudinal Development Profile of Cosmic Ray Air Showers between 10¹⁷ and
10¹⁸ eV, T. Abu-Zayyad et al., Astropart. Phys. 16, 1 (2001). Paper: PDF.

31. High Energy Gamma-Ray Observations of the Crab Nebula and Pulsar with the Solar Tower Atmospheric
Cherenkov Effect Experiment, S. Oser et al., Astrophys. J. 547, 949 (2001). Paper: PDF.

32. A Measurement of the Cosmic Ray Spectrum and Composition at the Knee, J.W. Fowler et al., Astropart. Phys. 15,
49 (2001). Paper: PDF.

33. Evidence for Changing of the Cosmic Ray Composition between 10¹⁷ to 10¹⁸ from Multi-Component
Measurements, T. Abu-Zayyad et al., Phys. Rev. Lett. 84, 4276 (2000). Paper: PDF.

34. The Cosmic Ray Composition between 10¹⁴ and 10¹⁶eV, M.A.K. Glasmacher et al., Astropart. Phys. 12, 1 (1999).
Paper: PDF.

35. The Cosmic Ray Energy Spectrum between 10¹⁴ and 10¹⁶eV, M.A.K. Glasmacher et al., Astropart. Phys. 10, 291
(1999). Paper: PDF.

36. Very High Energy Gamma-Ray Astronomy, Rene A. Ong, Physics Reports, 305, 93 (1998). Paper: PDF.

37. Prototype Test Results of the Solar Tower Atmospheric Cherenkov Effect Experiment (STACEE), M.Chantell et al.,
Nucl. Inst. Meth. Phys. Res. A 408, 468 (1998). Paper: PDF.

38. Constraints on Gamma-Ray Emission from the Galactic Plane at 300 TeV, A. Borione et al., Astrophys. J. 493, 175
(1998). Paper: PDF.

39. Limits on the Isotropic Diffuse Flux of Ultrahigh Energy Gamma-Radiation, M.C. Chantell et al., Phys. Rev. Lett. 79,
1805 (1997). Paper: PDF.

40. A Search for Ultrahigh Energy Gamma-Ray Emission from the Crab Nebula and Pulsar, A. Borione et al.,
Astrophys. J. 481, 313 (1997). Paper: PDF.

41. High Statistics Search for Ultrahigh Energy Gamma-Ray Emission from Cygnus X-3 and Hercules X-1,
A. Borione et al., Phys. Rev. D 55, 1714 (1997). Paper: PDF.

42. Detection of Atmospheric Cherenkov Radiation using Solar Heliostat Mirrors, R.A. Ong et al.,
Astropart. Phys. 5, 353 (1996). Preprint: Text (PS) and Figures (PS).

43. Large Area Atmospheric Cherenkov Detectors for High Energy Gamma-Ray Astronomy, Rene A. Ong,
Nuovo Cimento, 19C, 971 (1996).

44. A Search of Ultrahigh Energy Gamma Rays from EGRET-Detected Active Galactic Nuclei using CASA-MIA,
M. Catanese et al., Astrophys. J. 469, 572 (1996). Paper: PDF.

45. A Search for Diffuse Sources of Ultrahigh Energy Gamma Rays, A. Borione et al., Nucl. Phys. B 48, 483 (1996).

68 Additional Publications Prior to 1996.

Selected Talks and Conference Papers:

Year Forum, Location, and Date Title Talk

Paper

2006 Invited Talk, The Cronin Fest, A Celebration of James W. Cronin's 75th Birthday, The University of Chicago, Chicago IL, 9 Sep 2006 Cosmic Ray Studies to 10^16 eV
Ultra High Energy Cosmic Ray Research with CASA-MIA Talk (2.2 MB)
Paper

Review Talk, 6th Rencontres du Vietnam: Challenges in Particle Astrophysics, Hanoi, Vietnam, 9 Aug 2006 VHE Gamma-Ray Astronomy: Status and Future Talk (4.4 MB)
Paper

2005 Rapporteur Talk, 29th Int. Cosmic Ray Conference, Pune, India, 10 Aug 2005 OG1: Gamma-ray Science and Techniques
The Status of VHE Gamma-Ray Astronomy Talk (6.7 MB)
Paper (astro-ph/0605191)

Plenary Talk, XXII Int. Symposium on Lepton-Photon Interactions, Uppsala, Sweden, 4 Jul 2005 Future Facilities in Astroparticle Physics and Cosmology Talk (7.8 MB)

Colloquium, Department of Physics, Columbia University, New York NY, 18 Apr 2005 Very High-Energy (VHE) Astrophysics Talk (8.8 MB)

Colloquium, Department of Physics, University of Michigan, Ann Arbor MI, 23 Mar 2005 The Extreme Universe Talk (8.4 MB)

2004 Report, High Energy Physics Advisory Panel (HEPAP), Washington D.C., 24 Sep 2004 Report of the Scientific Assessment Group for Experiments in Non-Accelerator Physics (SAGENAP) Talk (0.7 MB)
Final Report (0.7 MB)

Colloquium, Department of Physics, Brown University, Providence RI, 1 Mar 2004 The Limits of Particle Physics and Astronomy Talk (5.1 MB)

2003 Seminar, Department of Physics and Astronomy, University of California, San Diego (UCSD), La Jolla CA, 4 Nov 2003 Observations of AGN at Very High Energies Talk (5.1 MB)

LHEA Seminar, Goddard Space Flight Center, Greenbelt MD, 24 Oct 2003 Status of VHE Astronomy Talk (3.3 MB)

Talk Series, XXXI SLAC Summer Institute, "Cosmic Connections", Stanford Linear Accelerator Center, Stanford CA, 1-4 Aug 2003 High-Energy Cosmic Rays Talk, Day 1 (3.4 MB)
Talk, Day 2 (3.8 MB)

Colloquium, Department of Physics, University of California, Irvine (UCI), Irvine CA, 1 May 2003 The Extreme Universe Talk (5.7 MB)

Seminar, Department of Statistics, UCLA, 11 Mar 2003 Exploring the High Energy Universe Talk (2.9 MB)

Opening Talk, Cosmic Ray Astrophysics Symposium, AAAS Annual Meeting, Denver CO, 16 Feb 2003 Cosmic Ray Frontiers Talk (2.3 MB)

2002 Multiwavelength Workshop for Next Generation Gamma-Ray Experiments, Adler Planetarium, Chicago IL, 1-2 Nov 2002 Discussion Topics Talk

Summary Talk, Int. Symposium: The Universe View in Gamma Rays Summary
The Status of VHE Astronomy Talk (3.0 MB)
Paper (astro-ph/0304336)

Int. Symposium: The Universe Viewed in Gamma Rays, Kashiwa, Japan, 25-28 Sep 2002 The VERITAS Project Talk (2.6 MB)
Paper (astro-ph/0302610)

2001 EEP Seminar, Dept of Physics and Astronomy, UCLA, 5 Dec 2001 A Twenty Year Roadmap for Particle Physics Talk (2.4 MB)

Colloquium, Dept. of Physics and Astronomy, University of Alabama, Tuscaloosa AL, 14 Nov 2001 The Extreme Universe: Probing the Limits of Particle Physics and Astronomy Talk (4.5 MB)

Journal Club Talk, Division of Astronomy and Astrophysics, UCLA, 9 Oct 2001 Extreme High-Energy Variability of Markarian 421 Talk (1.2MB)

27th Int. Cosmic Ray Conference, Hamburg, Germany, 7-15 Aug 2001 STACEE Observations of Active Galactic Nuclei and Other Sources Talk
Paper

GLAST-LAT Collaboration Meeting, Stanford CA 1-2 Aug 2001 The VHE Sky 2006-2010 Talk

Colloquium, Dept. of Physics, Stanford University, Stanford CA, 27 Feb 2001 The Violent Universe: Extending the Limits of Particle Physics and Astronomy (na)

1999
2000 Colloquium, Inst. for Theoretical Physics, Santa Barbara CA, 26 Jan 2000 Astronomy of the Very High Energy Universe Talk

Review Talk, Special HEAD Session at 195th AAS Meeting, Atlanta GA, 11-15 Jan 2002 Very High Energy Gamma-Ray Astronomy (na)

Plenary Talk, XIX Int. Sym. on Lepton and Photon Interactions, Stanford CA, 9-14 Aug 1999 High Energy Particles from the Universe Talk (5.0 MB)
Paper
(hep-ex/0003014)

GeV-TeV Gamma Ray Astrophysics Workshop, Snowbird UT, 13-16 Aug 1999 STACEE-32 Design, Performance, and Preliminary Results Paper


1.	The Energy Spectrum of the Blazar Markarian 421 above 130 GeV, J.E. Carson, J. Kildea, R.A. Ong et al., Accepted by Astrophys. J. (2007). Paper: PDF.



2.	Whipple 10m Observations of LSI +61 303: 2005-2006, A. Smith et al., Submitted to Astrophys. Space Sci. (2007).



3.	Observations of the Unidentified TeV Gamma-Ray Source TeV J2032+4130 with the Whipple Observatory 10 m Telescope, A. Konopelko et al., Astrophys. J. 658, 1062 (2007). Paper: PDF.



4.	Very High Energy Observations of Gamma-Ray Burst Locations with the Whipple Telescope, D. Horan et al., Astrophys. J. 655, 396 (2007). Paper: PDF.



5.	TeV Gamma-Ray Observations of the Perseus and Abell 2029 Galaxy Clusters, J.S. Perkins et al., Astrophys. J. 644, 148 (2006). Paper: PDF.



6.	The First VERITAS Telescope, J. Holder et al., Astroparticle Phys. 25, 391 (2006). Paper: PDF.



7.	A Search for Primordial Black Hole Evaporations using the Whipple Gamma-ray Telescope, E.T. Linton et al., J. Cosmology and Astroparticle Phys. 01, 013 (2006). Paper: PDF.


8.	A Multi-wavelength View of the TeV Blazar Markarian 421: Correlated Variability, Flaring, and Spectral Evolution , M. Blazejowski et al., Astrophys. J. 630, 130 (2005). Paper: PDF.


9.	Observations of the BL Lac Object 3C 66A with STACEE , D.A. Bramel et al., Astrophys. J. 629, 108 (2005). Paper: PDF.


10.	A Survey of Unidentified EGRET Sources at Very High Energies , S.J. Fegan et al., Astrophys. J. 624, 638 (2005). Paper is 40 MB.


11.	Spectrum of Very High Energy Gamma Rays from the Blazar 1ES 1959+650 During Flaring Activity in 2002, M.K. Daniel et al., Astrophys. J. 621, 181 (2005). Paper: PDF.


12.	A Search for TeV Gamma-Ray Emission from High-Peaked Flat-Spectrum Radio Quasars using the Whipple Air Cherenkov Telescope, A.D. Falcone et al., Astrophys. J. 613, 710 (2004). Paper: PDF.


13.	Observation of M87 at 400 GeV with the Whipple 10 Meter Telescope, S. Le Bohec et al., Astrophys. J. 610, 156 (2004). Paper: PDF.


14.	TeV Gamma-Ray Observations of the Galactic Center, K. Kosack et al., Astrophys. J. 608, L97 (2004). Paper: PDF.


15.	High-Energy Gamma-Ray Observations of W Comae with the Solar Tower Atmospheric Cherenkov Effect Experiment (STACEE), R.A. Scalzo et al., Astrophys. J. 607, 778 (2004). Paper: PDF.


16.	Constraints on the Very High Energy Emission from BL Lacertae Objects, D. Horan et al., Astrophys. J. 603, 51 (2004). Paper: PDF.


17.	Astrophysics around 100 GeV with STACEE, D.A. Williams et al., New Astr. Rev. 48, 359 (2004).


18.	VERITAS: the Very Energetic Radiation Imaging Telescope Array System, F. Krennrich et al., New Astr. Rev. 48, 345 (2004).


19.	Search for High-Energy Gamma Rays from an X-ray Selected Blazar Sample, I. de la Calle Perez et al., Astrophys. J. 599, 909 (2003). Paper: PDF.


20.	Search for TeV Emissions from Pulsars in Binary Systems, T.A. Hall et al., Astrophys. J. 583, 853 (2003). Paper: PDF.


21.	Detection of TeV Gamma Rays from the BL Lacertae Object 1ES 1959+650 with the Whipple 10 Meter Telescope, J. Holder et al., Astrophys. J. 583, L9 (2003). Paper: PDF.


22.	The TeV Spectrum of H1426+428, D.Petry et al., Astrophys. J. 580, 102 (2002). Paper: PDF.


23.	STACEE Observations of Markarian 421 During an Extended Gamma-Ray Outburst, L.M.Boone et al., Astrophys. J. 575, L5 (2002). Paper: PDF.


24.	Discovery of Spectral Variability of Markarian 421 at TeV Energies, F.Krennrich et al., Astrophys. J. 575, L9 (2002). Paper: PDF.


25.	Detection of the BL Lacertae Object H1426+428 at TeV Gamma-Ray Energies, D. Horan et al., Astrophys. J. 571, 753 (2002). Paper: PDF.


26.	The STACEE-32 Ground-Based Gamma-Ray Detector, D.S. Hanna et al., Nucl. Inst. Meth. Phys. Res. A491, 126 (2002). Preprint: PDF.


27.	VERITAS: the Very Energetic Radiation Imaging Telescope Array System, T.C. Weekes et al., Astropart. Phys. 17, 221 (2002). Paper: PDF.


28.	Cutoff in the TeV Energy Spectrum of Markarian 421 During Strong Flares in 2001, F. Krennrich et al., Astrophys. J. 560, L45 (2001). Paper: PDF.


29.	Measurement of the Cosmic Ray Energy Spectrum and Composition from 10¹⁷ to 10^18.3 eV using a Hybrid Fluorescence Technique, T. Abu-Zayyad et al., Astrophys. J. 557, 686 (2001). Paper: PDF.


30.	A Measurement of the Average Longitudinal Development Profile of Cosmic Ray Air Showers between 10¹⁷ and 10¹⁸ eV, T. Abu-Zayyad et al., Astropart. Phys. 16, 1 (2001). Paper: PDF.


31.	High Energy Gamma-Ray Observations of the Crab Nebula and Pulsar with the Solar Tower Atmospheric Cherenkov Effect Experiment, S. Oser et al., Astrophys. J. 547, 949 (2001). Paper: PDF.


32.	A Measurement of the Cosmic Ray Spectrum and Composition at the Knee, J.W. Fowler et al., Astropart. Phys. 15, 49 (2001). Paper: PDF.


33.	Evidence for Changing of the Cosmic Ray Composition between 10¹⁷ to 10¹⁸ from Multi-Component Measurements, T. Abu-Zayyad et al., Phys. Rev. Lett. 84, 4276 (2000). Paper: PDF.


34.	The Cosmic Ray Composition between 10¹⁴ and 10¹⁶eV, M.A.K. Glasmacher et al., Astropart. Phys. 12, 1 (1999). Paper: PDF.


35.	The Cosmic Ray Energy Spectrum between 10¹⁴ and 10¹⁶eV, M.A.K. Glasmacher et al., Astropart. Phys. 10, 291 (1999). Paper: PDF.


36.	Very High Energy Gamma-Ray Astronomy, Rene A. Ong, Physics Reports, 305, 93 (1998). Paper: PDF.


37.	Prototype Test Results of the Solar Tower Atmospheric Cherenkov Effect Experiment (STACEE), M.Chantell et al., Nucl. Inst. Meth. Phys. Res. A 408, 468 (1998). Paper: PDF.

38.	Constraints on Gamma-Ray Emission from the Galactic Plane at 300 TeV, A. Borione et al., Astrophys. J. 493, 175 (1998). Paper: PDF.


39.	Limits on the Isotropic Diffuse Flux of Ultrahigh Energy Gamma-Radiation, M.C. Chantell et al., Phys. Rev. Lett. 79, 1805 (1997). Paper: PDF.


40.	A Search for Ultrahigh Energy Gamma-Ray Emission from the Crab Nebula and Pulsar, A. Borione et al., Astrophys. J. 481, 313 (1997). Paper: PDF.


41.	High Statistics Search for Ultrahigh Energy Gamma-Ray Emission from Cygnus X-3 and Hercules X-1, A. Borione et al., Phys. Rev. D 55, 1714 (1997). Paper: PDF.


42.	Detection of Atmospheric Cherenkov Radiation using Solar Heliostat Mirrors, R.A. Ong et al., Astropart. Phys. 5, 353 (1996). Preprint: Text (PS) and Figures (PS).


43.	Large Area Atmospheric Cherenkov Detectors for High Energy Gamma-Ray Astronomy, Rene A. Ong, Nuovo Cimento, 19C, 971 (1996).


44.	A Search of Ultrahigh Energy Gamma Rays from EGRET-Detected Active Galactic Nuclei using CASA-MIA, M. Catanese et al., Astrophys. J. 469, 572 (1996). Paper: PDF.


45.	A Search for Diffuse Sources of Ultrahigh Energy Gamma Rays, A. Borione et al., Nucl. Phys. B 48, 483 (1996).



	68 Additional Publications Prior to 1996.

Year	Forum, Location, and Date	Title	Talk Paper

2006	Invited Talk, The Cronin Fest, A Celebration of James W. Cronin's 75th Birthday, The University of Chicago, Chicago IL, 9 Sep 2006	Cosmic Ray Studies to 10^16 eV Ultra High Energy Cosmic Ray Research with CASA-MIA	Talk (2.2 MB) Paper
2006	Review Talk, 6th Rencontres du Vietnam: Challenges in Particle Astrophysics, Hanoi, Vietnam, 9 Aug 2006	VHE Gamma-Ray Astronomy: Status and Future	Talk (4.4 MB) Paper
2005	Rapporteur Talk, 29th Int. Cosmic Ray Conference, Pune, India, 10 Aug 2005	OG1: Gamma-ray Science and Techniques The Status of VHE Gamma-Ray Astronomy	Talk (6.7 MB) Paper (astro-ph/0605191)
	Plenary Talk, XXII Int. Symposium on Lepton-Photon Interactions, Uppsala, Sweden, 4 Jul 2005	Future Facilities in Astroparticle Physics and Cosmology	Talk (7.8 MB)
	Colloquium, Department of Physics, Columbia University, New York NY, 18 Apr 2005	Very High-Energy (VHE) Astrophysics	Talk (8.8 MB)
	Colloquium, Department of Physics, University of Michigan, Ann Arbor MI, 23 Mar 2005	The Extreme Universe	Talk (8.4 MB)
2004	Report, High Energy Physics Advisory Panel (HEPAP), Washington D.C., 24 Sep 2004	Report of the Scientific Assessment Group for Experiments in Non-Accelerator Physics (SAGENAP)	Talk (0.7 MB) Final Report (0.7 MB)
2004	Colloquium, Department of Physics, Brown University, Providence RI, 1 Mar 2004	The Limits of Particle Physics and Astronomy	Talk (5.1 MB)
2003	Seminar, Department of Physics and Astronomy, University of California, San Diego (UCSD), La Jolla CA, 4 Nov 2003	Observations of AGN at Very High Energies	Talk (5.1 MB)
	LHEA Seminar, Goddard Space Flight Center, Greenbelt MD, 24 Oct 2003	Status of VHE Astronomy	Talk (3.3 MB)
	Talk Series, XXXI SLAC Summer Institute, "Cosmic Connections", Stanford Linear Accelerator Center, Stanford CA, 1-4 Aug 2003	High-Energy Cosmic Rays	Talk, Day 1 (3.4 MB) Talk, Day 2 (3.8 MB)
	Colloquium, Department of Physics, University of California, Irvine (UCI), Irvine CA, 1 May 2003	The Extreme Universe	Talk (5.7 MB)
	Seminar, Department of Statistics, UCLA, 11 Mar 2003	Exploring the High Energy Universe	Talk (2.9 MB)
	Opening Talk, Cosmic Ray Astrophysics Symposium, AAAS Annual Meeting, Denver CO, 16 Feb 2003	Cosmic Ray Frontiers	Talk (2.3 MB)
2002	Multiwavelength Workshop for Next Generation Gamma-Ray Experiments, Adler Planetarium, Chicago IL, 1-2 Nov 2002	Discussion Topics	Talk
	Summary Talk, Int. Symposium: The Universe View in Gamma Rays	Summary The Status of VHE Astronomy	Talk (3.0 MB) Paper (astro-ph/0304336)
	Int. Symposium: The Universe Viewed in Gamma Rays, Kashiwa, Japan, 25-28 Sep 2002	The VERITAS Project	Talk (2.6 MB) Paper (astro-ph/0302610)
2001	EEP Seminar, Dept of Physics and Astronomy, UCLA, 5 Dec 2001	A Twenty Year Roadmap for Particle Physics	Talk (2.4 MB)
	Colloquium, Dept. of Physics and Astronomy, University of Alabama, Tuscaloosa AL, 14 Nov 2001	The Extreme Universe: Probing the Limits of Particle Physics and Astronomy	Talk (4.5 MB)
	Journal Club Talk, Division of Astronomy and Astrophysics, UCLA, 9 Oct 2001	Extreme High-Energy Variability of Markarian 421	Talk (1.2MB)
	27th Int. Cosmic Ray Conference, Hamburg, Germany, 7-15 Aug 2001	STACEE Observations of Active Galactic Nuclei and Other Sources	Talk Paper
	GLAST-LAT Collaboration Meeting, Stanford CA 1-2 Aug 2001	The VHE Sky 2006-2010	Talk
	Colloquium, Dept. of Physics, Stanford University, Stanford CA, 27 Feb 2001	The Violent Universe: Extending the Limits of Particle Physics and Astronomy	(na)
1999 2000	Colloquium, Inst. for Theoretical Physics, Santa Barbara CA, 26 Jan 2000	Astronomy of the Very High Energy Universe	Talk
	Review Talk, Special HEAD Session at 195th AAS Meeting, Atlanta GA, 11-15 Jan 2002	Very High Energy Gamma-Ray Astronomy	(na)
	Plenary Talk, XIX Int. Sym. on Lepton and Photon Interactions, Stanford CA, 9-14 Aug 1999	High Energy Particles from the Universe	Talk (5.0 MB) Paper (hep-ex/0003014)
	GeV-TeV Gamma Ray Astrophysics Workshop, Snowbird UT, 13-16 Aug 1999	STACEE-32 Design, Performance, and Preliminary Results	Paper