David H. Cohen , Associate Professor (Physics & Astronomy)
Book ChapterCohen, D.H. 2008. X-ray emission from O stars. In Massive Stars as Cosmic Engines (IAU S250), edited by F. Bresolin, P.A. Crowther, and J. Puls. Cambridge: Cambridge University Press. Find this resource Cohen, D.H. 2008. X-rays from magnetically channeled winds of OB stars. In Massive Stars as Cosmic Engines (IAU S250), edited by F. Bresolin, P.A. Crowther, and J. Puls. Cambridge: Cambridge University Press. Find this resource Cohen, D.H., M.M. Hanson, R.H.D. Townsend, K.S. Bjorkman, and M. Gagné. 2005. Diagnostics of disks around hot stars. In The Nature and evolution of disks around hot stars (ASP Conference Series vol. 337), edited by R. Ignace and K. Gayley, 59. San Francisco: Astronomical Society of the Pacific. Find this resource Cohen, D.H., M. Gagné, S. Owocki, and A. ud-Doula. 2002. Mass-loss and magnetospheres: X-rays from hot stars and young stellar objects. In X-rays at sharp focus: Chandra science symposium (ASP Conference Series vol. 262), edited by S. Vrtilek, E.M. Schlegel, and L. Kuhi, 31. San Francisco: Astronomical Society of the Pacific. Find this resource Cohen, D. H., J.P. Cassinelli, J.J. MacFarlane, and S.P. Owocki. 2000. EUV/X-ray emission and the thermal and ionization structure of B star winds. In Thermal and ionization aspects of flows from hot stars, edited by H.J.G.L.M. Lamers and A. Sapar, 65-80. San Francisco, CA: Astronomical Society of the Pacific. Find this resource Conference ProceedingsCohen, D.H., M.A. Leutenegger, and R.H.D. Townsend. 2007. Quantitative analysis of resolved X-ray emission line profiles of O stars. Paper read at International Workshop on Clumping in Hot-Star Winds, June 18-22, 2007, at University of Potsdam, Germany. Find this resource Cohen, D.H., M.A. Leutenegger, S.M. Kahn, S.P. Owocki, and F.B.S. Paerels. 2007. Resonance scattering in the X-ray emission lines profiles of ζ Puppis. Paper read at International Workshop on Clumping in Hot-Star Winds, June 18-22, 2007, at University of Potsdam, Germany. Find this resource Cohen, D.H., R.H. Kramer, and S.P. Owocki. 2002. Analysis of doppler-broadened X-ray emission line profiles from hot stars. Paper read at MSSL Workshop on High-Resolution X-ray Spectroscopy, October 24-25, 2002, at Holmbury St. Mary, UK. Find this resource JournalCohen, D.H., M.A. Kuhn '07, M. Gagné, E.L.N. Jensen and N.A. Miller. 2008. Chandra spectroscopy of the hot star β Crucis and the discovery of a pre-main-sequence companion. Monthly Notices of the Royal Astronomical Society 386 (4): 1855-1871. Find this resource Cohen, D.H., M.R. Brown, C.D. Cothran, J. Horwitz '07, and V. Chaplin '07. 2008. Flow dynamics and plasma heating of spheromaks in SSX. Journal of Fusion Energy 27 (1-2): 16-19. Find this resource Cohen, D.H., S.L. Skinner, K.R. Sokal, M. Gagné, S.P. Owocki and R.D. Townsend. 2008. High-resolution Chandra X-ray imaging and spectroscopy of the σ Orionis cluster. Astrophysical Journal 683 (2): 796-812. Find this resource Cohen, D.H., J. Zsargó, D.J. Hillier, J.-C. Bouret, T. Lanz and M.A. Leutenegger. 2008. On the importance of the interclump medium for superionization: O VI formation in the wind of ζ puppis. Astrophysical Journal Letters 685: L000. Find this resource Cohen, D.H., M.A. Leutenegger, F.B.S. Paerels, and S.M. Kahn. 2006. Measurement and analysis of helium-like triplet ratios in the x-ray spectra of O-type stars. The Astrophysical Journal 650 (2): 1096-1110. Find this resource Cohen, D.H. and S.P. Owocki. 2006. The Effect of porosity on x-ray emission-line profiles from hot-star winds. The Astrophysical Journal 648 (1): 565-571. Find this resource Cohen, D.H., M.A. Leutenegger, K.T. Grizzard, C.L. Reed '05, R.H. Kramer '03, and S.P. Owocki. 2006. Wind signatures in the x-ray emission line profiles of the late-O supergiant ζ Orionis. Monthly Notices of the Royal Astronomical Society 368 (4): 1905-1916. Find this resource Cohen, D.H., M. Gagne, M.E. Oksala, S.K. Tonnesen '03, A. ud-Doula, S.P Owocki, R.H.D Townsend, and J.J. MacFarlane. 2005. Chandra HETGS multiphase spectroscopy of the young magnetic O star Θ1 Orionis C. Astrophysical Journal 628 (2): 986-1005. Find this resource Cohen, D.H., O.L. Landen, and J.J. MacFarlane. 2005. Numerical modeling of Hohlraum radiation conditions: Spatial and spectral variations due to sample position, beam pointing, and Hohlraum geometry. Physics of Plasmas 12 (12): 122703. Find this resource Cohen, D.H., M.A. Smith, M.F. Gu, R.D. Robinson, N.R. Evan, and P.G. Schran. 2004. High-resolution Chandra spectroscopy of γ Cassiopeiae (B0.5e). Astrophysical Journal 600 (2): 972-985. Find this resource Cohen, D.H., J.J MacFarlane, P. Jaanimagi, O.L Landen, D.A. Haynes, D.S. Conners '03, K.L. Penrose '04, and N.C. Shupe '05. 2004. Tracer spectroscopy diagnostics of doped ablators in inertial confinement fusion experiments on OMEGA. Physics of Plasmas 11 (5): 2702-2708. Find this resource Cohen, D.H., G.E. de Messičres '04, J.J MacFarlane, N.A. Miller, J.P. Cassinelli, S.P. Owocki, and D.A. Liedahl. 2003. Chandra spectroscopy of τ Scorpii: A narrow-line X-ray spectrum from a hot star. Astrophysical Journal 586 (1): 495-505. Find this resource Cohen, D.H., R.H. Kramer '03, S.K. Tonnesen, S.P. Owocki, A. ud-Doula, and J.J. MacFarlane. 2003. X-ray emission line profile modeling of hot stars. Review of Scientific Instruments 74 (3): 1966-1968. Find this resource Cohen, D.H., R.H. Kramer '03, and S.P. Owocki. 2003. X-ray emission-line profile modeling of O stars: Fitting a spherically symmetric analytic wind-shock model to the Chandra spectrum of ζ Puppis. Astrophysical Journal 592 (1): 532-538. Find this resource Cohen, D.H., J.J MacFarlane, J.E. Bailey, and D.A Liedahl. 2003. X-ray spectral diagnostics of neon photoionization experiments on the Z-machine. Review of Scientific Instruments 74 (3): 1962-1965. Find this resource Cohen, D.H., N.A. Miller, J.P. Cassinelli, W.L. Waldron, and J.J. MacFarlane. 2002. New challenges for wind shock models: The Chandra spectrum of the hot star δ Orionis. Astrophysical Journal 577 (2): 951-960. Find this resource Cohen, D.H., et al. 2002. Radiation science using Z-pinch x rays. Physics of Plasmas 9 (5): 2186-2194. Find this resource Cohen, D.H., J.P. Cassinelli, N.A. Miller, W.L. Waldron, and J.J. MacFarlane. 2001. Chandra Detection of Doppler-shifted X-Ray Line Profiles from the Wind of ζ Puppis (O4 f). Astrophysical Journal 554 (1): L55-L58. Find this resource Cohen, D.H., et al. 2001. Neon photoionization experiments driven by Z-pinch radiation. Journal of Quantitative Spectroscopy and Radiative Transfer 71 (2-6): 157-168. Find this resource Cohen, D.H. and S.P. Owocki. 2001. X-ray line profiles from parameterized emission within an accelerating stellar wind. Astrophysical Journal 559 (2): 1108-1116. Find this resource Cohen, D.H., H. Chung, J.J. MacFarlane, J.E. Bailey, P. Wang, and G.A. Moses. 2000. Statistical fitting analysis of Stark-broadened optically thick Ar II spectra measured in ion beam transport experiments. Journal of Quantitative Spectroscopy and Radiative Transfer 65 (1-3): 135-149. Find this resource |