David H Roberts

Title

William R. Kenan, Jr. Professor of Astrophysics

Physics

Expertise

Galactic and extragalactic astrophysics. Radio astronomy. Theoretical astrophysics.

Degrees

Stanford University, Ph.D.

Amherst College, B.A.

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Contact

Email:	roberts@brandeis.edu
Phone:	781-736-2846
Office:	Abelson-Bass-Yalem Building, 326

Awards and Honors

NASA Group Achievement Award for TDRSS Space VLBI (1988)

Courses Taught

PHYS	11a	Introductory Physics I
PHYS	11b	Introductory Physics II
PHYS	15a	Advanced Introductory Physics I
PHYS	15b	Advanced Introductory Physics II
PHYS	301a	Astrophysics Seminar I
PHYS	301b	Astrophysics Seminar II

Scholarship

Roberts,David H with Ojha, R., Wardle, J., Homan, D., Aller, M., Aller, H., & Hughes, P.,. "VLBI Polarimery: A Faraday Screen in 3C273?." Quasar Cores and Jets, Proc. 25th Meeting of the IAU (2007). (forthcoming)

Roberts, David H., Wardle, John F. C., & Marchenko, Valerie V.*. "Structure and Linear Polarization of the Kiloparsec-Scale Jet of the Quasar 3C345." Astronomical Journal 145. (2013): 49-57.

Roberts, David H. & Wardle, John F. C.. "Evidence for Highly Relativistic Velocities on Kiloparsec Scales in the Quasar 3C345." Astrophysical Journal (Letters) 759. (2012): L35-L39.

Bell, Michael R., Roberts, David H., & Wardle, John F. C.. "Structure and Magnetic Fields in the Precessing Jet System SS 433 III. Intrinsic Brightness of the Jets from a Deep Multi-Epoch VLA Campaign." Astrophysical Journal 736. 2011 August 1 (2011): 118-131.

Roberts, D. H, Wardle, J. F C., Bell, M., Mallory,* M., Marchenko,* V., & Sanderbeck*, P.. "Structure and Magnetic Fields in the Precessing Jet System SS 433 II. Intrinsic Brightness of the Jets." Astrophysical Journal 719. 2 (2010): 1918--1925.

Roberts, David H., Wardle, John F. C., Lipnick, Scott L.,* Selesnick, Philip L.,* & Slutsky, Simon*. "Structure and Magnetic Fields in the Precessing Jet System SS 433. I. Multifrequency Imaging from 1998." Astrophysical Journal 676. March 20, 2008 (2008): 584-593.

Roberts, David H with Cheung C., Wardle, J., Moellenbrock, G., & Homan, D.. "Multi-Frequency VSOP and VLBA Polarization Observations on 3C279 and 3C345." Future Directions in High Resoultion Radio Astronomy (2005): 174-176.

Roberts,David H with Aller, H, Aller, M., Huges, P., Homan, D. & Wardle, J.. "Observations of Oblique Polarization Structures in Active Extragalactic Radio Jets." Future Directions in High Resolution Radio Astronomy. Jonathan D. Romney and Mark J. Reid (Astron. Soc. Pacific), 2005. 165-167.

Roberts,David H with Chen T., Wardle, J., Cheung, C., & Moellenbrock, G.. "HALCA and VLBA Observations of 3C454.3." Future Directions in High Resolution Radio Astronomy. Jonathan D. Romney and Mark J. Reid (Aston, Soc. Pacific), 2005. 77-81.

Roberts,David H with Ojha R. Wardle, J. Horman, D., Aller, M., Aller, H., & Hughes, P.. "VLBI Polarimetry: A Faraday Screen in 3C273?." Future Directions in High Resolution Radio Astronomy. Jonathan D. Romney and Mark J. Reid, ( Astron. Soc. Pacific), 2005. 195-197.

Roberts,David H with Wardle, J., Homan, D., & Cheung, C.. "The Ultra-Fast Quasar PKS 1510-089: Direct Evidence fo ra Changing Orientation of the Central Engine." Future Directions in High Resolution Radio Astronomy (2005): 67-71.

Roberts,David H with Ojha, R., Homan, D., Wardle, J., Aller, M., Aller, H., & Hughes, P. "Parsec-scale Blazar Monitoring: The Data." Astrophys. J. (Supp.) 150. (2004): 187-237.

Roberts, David H with Ohja, R., Homan, D., & Wardle, J.. "Proper Motions, Flux and Polarization Variability from Parsec Scale Blazar Monitoring." New Astron. Rev. 47. (2003): 637-640.