71,195 research outputs found
Rose Harris on horse with prize ribbons beside house entry, Clermont, Queensland, ca. 1910 [picture] /
Accompanied by photographic print.; Condition: Dirty, scratched, emulsion lift.; Glass negative no. 187.; Part of the Gordon Cumming Pullar collection of glass negatives of Clermont, Yeppoon and nearby locations, Queensland, ca. 1905-1932.; Photograph no. 132 in the book A shifting town : glass-plate images of Clermont and its people.; Rose Harris was the daughter of W T Harris, saddler; she was a competent saddler and musician and a prominent citizen till her death in her nineties.; Also available in an electronic version via the internet at: http://nla.gov.au/nla.pic-vn4191924; Published in: A shifting town : glass-plate images of Clermont and its people / by G.C. Pullar ; compiled by Richard and Marguerite Stringer ; text by Marguerite Stringer. St. Lucia, Qld. : University of Queensland Press, 1986
Thomas Barnes and Ethel Ricketts wedding group, Clermont, Queensland, 22 September 1926 [picture] /
Condition: Fair, scratched, dirty.; Accompanied by photographic print.; Glass negative no. 203.; Part of the Gordon Cumming Pullar collection of glass negatives of Clermont, Yeppoon and nearby locations, Queensland, ca. 1905-1932.; Photograph no. 163 in the book A shifting town : glass-plate images of Clermont and its people.; Wedding held at All Saints Church and afterwards at home at Box Street; back row, l to r: Mrs T Harris (Ellen) Ricketts, Claude Ricketts, Cecil Barnes, Tom or Herbert Eite (best man), William James Barnes (father of groom); front row l to r: Hilda Hiscock (nee Barnes), bride groom and bride, Iva Ricketts; double exposure.; Also available in an electronic version via the internet at: http://nla.gov.au/nla.pic-vn4191940; Published in: A shifting town : glass-plate images of Clermont and its people / by G.C. Pullar ; compiled by Richard and Marguerite Stringer ; text by Marguerite Stringer. St. Lucia, Qld. : University of Queensland Press, 1986
Rose Harris on horse by child, Clermont, Queensland, ca. 1910 [picture] /
Accompanied by photographic print.; Condition: Dirty, scratched, emulsion lift.; Glass negative no. 186.; Part of the Gordon Cumming Pullar collection of glass negatives of Clermont, Yeppoon and nearby locations, Queensland, ca. 1905-1932.; Photograph no. 131 in the book A shifting town : glass-plate images of Clermont and its people.; Rose Harris was the daughter of W T Harris, saddler; she was a competent saddler and musician and a prominent citizen till her death in her nineties.; Also available in an electronic version via the internet at: http://nla.gov.au/nla.pic-vn4191923; Published in: A shifting town : glass-plate images of Clermont and its people / by G.C. Pullar ; compiled by Richard and Marguerite Stringer ; text by Marguerite Stringer. St. Lucia, Qld. : University of Queensland Press, 1986
Rose Harris on horse at show, Clermont, Queensland, ca. 1910 [picture] /
Accompanied by photographic print.; Condition: Dirty, scratched, emulsion lift.; Glass negative no. 185.; Part of the Gordon Cumming Pullar collection of glass negatives of Clermont, Yeppoon and nearby locations, Queensland, ca. 1905-1932.; Photograph no. 130 in the book A shifting town : glass-plate images of Clermont and its people.; Rose Harris was the daughter of W T Harris, saddler; she was a competent saddler and musician and a prominent citizen till her death in her nineties.; Also available in an electronic version via the internet at: http://nla.gov.au/nla.pic-vn4191922; Published in: A shifting town : glass-plate images of Clermont and its people / by G.C. Pullar ; compiled by Richard and Marguerite Stringer ; text by Marguerite Stringer. St. Lucia, Qld. : University of Queensland Press, 1986
Finite size effects and the supersymmetric sine-Gordon models
We propose nonlinear integral equations to describe the groundstate energy of the fractional supersymmetric sine-Gordon models. The equations encompass the N = 1 supersymmetric sine-Gordon model as well as the phi(id,id,adj) perturbation of the SU(2)(L) x SU(2)(K)/SU(2)(L+K) models at rational level K. A second set of equations is proposed for the groundstate energy of the N = 2 supersymmetric sine-Gordon model
C iv emission-line properties and systematic trends in quasar black hole mass estimates
Black hole masses are crucial to understanding the physics of the connection between quasars and their host galaxies and measuring cosmic black hole-growth. At high redshift, z ≳ 2.1, black hole masses are normally derived using the velocity width of the C iv1548, 1550 broad emission line, based on the assumption that the observed velocity widths arise from virial-induced motions. In many quasars, the C iv emission line exhibits significant blue asymmetries (‘blueshifts’) with the line centroid displaced by up to thousands of km s−1 to the blue. These blueshifts almost certainly signal the presence of strong outflows, most likely originating in a disc wind. We have obtained near-infrared spectra, including the Hα 6565 emission line, for 19 luminous (LBol = 46.5–47.5 erg s−1) Sloan Digital Sky Survey quasars, at redshifts 2 2000 km s−1, the velocity widths appear to be dominated by non-virial motions. Black hole masses, based on the full width at half-maximum of the C iv emission line, can be overestimated by a factor of 5 at large blueshifts. A larger sample of quasar spectra with both C iv and H β, or Hα, emission lines will allow quantitative corrections to C iv-based black hole masses as a function of blueshift to be derived. We find that quasars with large C iv blueshifts possess high Eddington luminosity ratios and that the fraction of high-blueshift quasars in a flux-limited sample is enhanced by a factor of approximately 4 relative to a sample limited by black hole mass
Measurement of the ratio of prompt χ c to J / ψ production in pp collisions at √s = 7 TeV
The prompt production of charmonium χ c and J / ψ states is studied in proton-proton collisions at a centre-of-mass energy of √s = 7 TeV at the Large Hadron Collider. The χ c and J / ψ mesons are identified through their decays χ c → J / ψ γ and J / ψ → μ + μ - using 36 pb - 1 of data collected by the LHCb detector in 2010. The ratio of the prompt production cross-sections for χ c and J / ψ, σ (χ c → J / ψ γ) / σ (J / ψ), is determined as a function of the J / ψ transverse momentum in the range 2 < p T J / ψ < 15 GeV / c. The results are in excellent agreement with next-to-leading order non-relativistic expectations and show a significant discrepancy compared with the colour singlet model prediction at leading order, especially in the low p T J / ψ region
Linear systems, Hankel products and the sinh-Gordon equation
Let be a linear system in continuous time with input and output space and state space . The scattering functions determines a Hankel integral operator ; if is trace class, then the Fredholm determinant determines the tau function of . The paper establishes properties of algebras including on . Thus the paper obtains solutions of the sinh-Gordon PDE. The tau function for sinh-Gordon satisfies a particular Painl\'eve nonlinear ODE and describes a random matrix model, with asymptotic distribution found by the Coulomb fluid method to be the solution of an electrostatic variational problem on an interval
Exploring the link between C IV outflow kinematics and sublimation-temperature dust in quasars
Using data from SDSS, UKIDSS, and WISE, we investigate the properties of the high-frequency cutoff to the infrared emission in ≈5000 carefully selected luminous (Lbol ~1047) type 1 quasars. The strength of ≈2 μm emission, corresponding to emission from the hottest (T > 1200K) dust in the sublimation zone surrounding the central continuum source, is observed to correlate with the blueshift of the C iv λ1550 emission line. We therefore find that objects with stronger signatures of nuclear outflows tend to have a larger covering fraction of sublimation-temperature dust. When controlling for the observed outflow strength, the hot dust covering fraction does not vary significantly across our sample as a function of luminosity, black hole mass, or Eddington fraction. The correlation between the hot dust and the C iv line blueshifts, together with the lack of correlation between the hot dust and other parameters, therefore provides evidence of a link between the properties of the broad emission line region and the infrared-emitting dusty regions in quasars.</p
Captain Shepherd’s Quick Step
80.7568.185 – “Captain Shepherd’s Quick Step”: C. S. Grafulla: S. T. Gordon: 1863: Piano Solo
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