Browsing Articles by Title

Browsing Articles by Title

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  • Pisano, D. J.; Barnes, David G.; Staveley-Smith, Lister; Gibson, Brad K.; Kilborn, Virginia A.; Freeman, Ken C. (IOP Publishing Limited, 2011-12)
    We have conducted an H I 21 cm emission-line survey of six loose groups of galaxies chosen to be analogs to the Local Group. The survey was conducted using the Parkes multibeam instrument and the Australia Telescope Compact ...

  • Shellnutt, J. Gregory; Dostal, J. (Springer Nature, 2019-03-01)
    Understanding the formation and evolution of Precambrian greenstone belts is hampered by gaps in the rock record and the uncertainty of the tectonic regime that was operating at the time. Thus identifying a modern analogue ...

  • Gibson, Brad K.; Maccio, A. V.; Stinson, G.; Brook, C. B.; Wadsley, J.; Couchman, H. M. P.; Shen, S.; Quinn, T. (American Astronomical SocietyIOP Publishing, 2012-01-01)
    A clear prediction of the cold dark matter (CDM) model is the existence of cuspy dark matter halo density profiles on all mass scales. This is not in agreement with the observed rotation curves of spiral galaxies, challenging ...

  • Snaith, O. N.; Gibson, Brad K.; Brook, C. B.; Knebe, A.; Thacker, Robert John, 1970-; Quinn, T. R.; Governato, F.; Tissera, P. B. (Oxford University Press, 2012-09)
    We examine the properties and evolution of a simulated polar disc galaxy. This galaxy is composed of two orthogonal discs, one of which contains old stars (old stellar disc) and the other both younger stars and cold gas ...

  • Tanaka, J.; Kanungo, R.; Alcorta, M.; Aoi, N.; Bidaman, H.; Burbadge, C.; Christian, G.; Cruz, S.; Davids, B.; Diaz Varela, A.; Even, J.; Hackman, G.; Harakeh, M. N.; Henderson, J.; Ishimoto, S.; Kaur, S.; Keefe, M.; Krücken, R.; Leach, K. G.; Lighthall, J.; Padilla Rodal, E.; Randhawa, J. S.; Ruotsalainen, P.; Sanetullaev, A.; Smith, J. K.; Workman, O.; Tanihata, I. (Elsevier, 2017-11-10)
    Proton inelastic scattering off a neutron halo nucleus, 11Li, has been studied in inverse kinematics at the IRIS facility at TRIUMF. The aim was to establish a soft dipole resonance and to obtain its dipole ...

  • Sarty, Adam James, 1965-; Pomerantz, I.; Ilieva, Y.; Gilman, R.; Higinbotham, D. W.; Piasetzky, E.; Strauch, S.; Adhikari, K. P.; Aghasyan, M.; Allada, K. (American Physical Society, 2013-06-14)
    We have measured cross sections for the [gamma][superscript 3]He [right-facing arrow] pd reaction at photon energies of 0.4–1.4 GeV and a center-of-mass angle of 90 [degrees symbol]. We observe dimensional scaling above ...

  • Vasudevan, Ranjan V.; Mushotzky, Richard F.; Reynolds, Christopher S.; Fabian, Andrew C.; Lohfink, Anne M.; Zoghbi, Abderahmen; Gallo, Luigi C.; Walton, Dominic (IOP Publishing Limited, 2014-04-10)
    The X-ray spectra of many active galactic nuclei exhibit a “soft excess” below 1 keV, whose physical origin remains unclear. Diverse models have been suggested to account for it, including ionized reflection ...

  • Lonc, William, 1930- (American Association of Physics TeachersAmerican Institute of Physics, 1989-01)
    An experiment, suitable for an introductory laboratory course, is described in which a relatively common household item--the microwave oven--is used to do a heat experiment verifying the conservation of energy principle.

  • Witthauer, L.; Dieterle, M.; Abt, S.; Achenbach, P.; Afzal, F.; Ahmed, Z.; Akondi, C. S.; Annand, J. R. M.; Arends, H. J.; Bashkanov, M.; Beck, R.; Biroth, M.; Borisov, N. S.; Braghieri, A.; Briscoe, W. J.; Cividini, F.; Costanza, S.; Collicott, C.; Denig, A.; Downie, E. J.; Drexler, P.; Ferretti-Bondy, M. I.; Gardner, S.; Garni, S.; Glazier, D. I.; Sarty, A. (American Physical Society, 2017-05-01)
    Precise helicity-dependent cross sections and the double-polarization observable E were measured for η photoproduction from quasifree protons and neutrons bound in the deuteron. The η→2γ and η&rarr ...

  • Piorko, Adam; Christie, Sean; Zaworotko, Michael J. (International Union of Crystallography, 1995-01)
    The structures of ([eta superscript 5]-cyclopentadienyl)[(1,2,3,4,4a,10a-[eta superscript 6])-dibenzo[b,e][1,4]dioxin]iron(II) hexafluorophosphate (1), [Fe(C[subscript 5]H[subscript 5])(C[subscript 12]H[subscript 8]O[subscript ...

  • Gibson, Brad K.; Brook, C. B.; Stinson, G.; Roskar, R.; Wadsley, J.; Quinn, T. (Oxford University Press, 2012-01)
    Within a fully cosmological hydrodynamical simulation, we form a galaxy which rotates at 140 km s[superscript −1], and it is characterized by two loose spiral arms and a bar, indicative of a Hubble-type SBc/d galaxy. We ...

  • Jiang, Jiachen; Fabian, Andrew C.; Dauser, Thomas; Gallo, Luigi C.; Garcia, Javier A.; Kara, Erin; Parker, Michael L.; Tomsick, John A.; Walton, Dominic J.; Reynolds, Christopher S. (Oxford University Press, 2019-11)
    We present a high density disc reflection spectral analysis of a sample of 17 Seyfert 1 galaxies to study the inner disc densities at different black hole mass scales and accretion rates. All the available XMM–Newton ...

  • Iodice, M.; Cusanno, F.; Acha, A.; Ambrozewicz, P.; Aniol, K. A.; Baturin, P.; Bertin, P. Y.; Benaoum, H.; Blomqvist, K. I.; Boeglin, W. U.; Sarty, Adam James, 1965- (American Physical Society, 2007)
    An experiment measuring electroproduction of hypernuclei has been performed in hall A at Jefferson Lab on a [superscript 12]C target. In order to increase counting rates and provide unambiguous kaon identification two ...

  • Austin, Roby Anne Elizabeth, 1974-; Finlay, P.; Ball, G. C.; Leslie, J. R.; Svensson, C. E.; Andreoiu, C.; Bandyopadhyay, D.; Cross, D. S.; Demand, G.; Djongolov, M. (American Physical Society, 2012-05-29)
    A high-precision branching-ratio measurement for the superallowed [beta superscript +] emitter [superscript 26]Al[superscript m] was performed at the TRIUMF-ISAC radioactive ion beam facility. An upper limit of [less than ...

  • Austin, Roby Anne Elizabeth, 1974-; Grinyer, G. F.; Finlay, P.; Svensson, C. E.; Ball, G. C.; Leslie, J. R.; Bandyopadhyay, D.; Chaffey, A.; Chakrawarthy, R. S.; Garrett, P. E. (American Physical Society, 2008-01)
    The half-life of the superallowed [beta][superscript +] emitter [superscript 62]Ga has been measured at TRIUMF’s Isotope Separator and Accelerator facility using a fast-tape-transport system and 4[pi] continuous-flow gas ...

  • Austin, Roby Anne Elizabeth, 1974-; Finlay, P.; Ettenauer, S.; Ball, G. C.; Leslie, J. R.; Svensson, C. E.; Andreoiu, C.; Bandyopadhyay, D.; Cross, D. S.; Demand, G. (American Physical Society, 2011-01-21)
    A high-precision half-life measurement for the superallowed [beta][superscript +] emitter [superscript 26]Al[superscript m] was performed at the TRIUMF-ISAC radioactive ion beam facility yielding T[subscript 1/2] = 6346.54 ...

  • Austin, Roby Anne Elizabeth, 1974-; Laffoley, A. T.; Svensson, C. E.; Andreoiu, C.; Ball, G. C.; Blank, B.; Bouzomita, H.; Cross, D. S.; Diaz Varela, A.; Dunlop, R. (American Physical Society, 2013-07)
    The half-life of the superallowed Fermi [beta][superscript +] emitter [superscript 14]O has been determined via simultaneous direct [beta] and [gamma] counting experiments at TRIUMF’s Isotope Separator and Accelerator ...

  • Zhan, X.; Allada, K.; Armstrong, D.S.; Arrington, J.; Bertozzi, W.; Boeglin, W.; Chen, J.P.; Chirapatpimol, K.; Choi, S.; Chudakov, E.; Sarty, Adam James, 1965- (Elsevier Science B.V., 2011-11-03)
    We report a new, high-precision measurement of the proton elastic form factor ratio μpGE/GM for the four-momentum transfer squared Q2 = 0.3–0.7 (GeV/c)2. The ...

  • Cusanno, F.; Urciuoli, G. M.; Acha, A.; Ambrozewicz, P.; Aniol, K. A.; Baturin, P.; Bertin, P. Y.; Benaoum, H.; Blomqvist, K. I.; Boeglin, W. U.; Sarty, Adam James, 1965- (American Physical Society, 2009-11)
    An experimental study of the [superscript 16]O(e,e[superscript 1]K[superscript +][superscript 16][subscript lambda] N reaction has been performed at Jefferson Lab. A thin film of falling water was used as a target. This ...

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