Search Results - "Greaves, S. J"

Analysis of the Herschel DEBRIS Sun-like star sample by Sibthorpe, B, Kennedy, G M, Wyatt, M C, Lestrade, J-F, Greaves, J S, Matthews, B C, Duchêne, G

“…Abstract This paper presents a study of circumstellar debris around Sun-like stars using data from the Herschel DEBRIS Key Programme. DEBRIS is an unbiased…”
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Steady State Evolution of Debris Disks around A Stars by Wyatt, M. C, Smith, R, Su, K. Y. L, Rieke, G. H, Greaves, J. S, Beichman, C. A, Bryden, G

“…This paper confronts a simple analytical model for the steady state evolution of debris disks due to collisions with Spitzer observations of dust around…”
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99 Herculis: host to a circumbinary polar-ring debris disc by Kennedy, G. M., Wyatt, M. C., Sibthorpe, B., Duchêne, G., Kalas, P., Matthews, B. C., Greaves, J. S., Su, K. Y. L., Fitzgerald, M. P.

“…We present resolved Herschel images of a circumbinary debris disc in the 99 Herculis system. The primary is a late F-type star. The binary orbit is well…”
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Have protoplanetary discs formed planets? by Greaves, J. S., Rice, W. K. M.

“…It has recently been noted that many discs around T Tauri stars appear to comprise only a few Jupiter masses of gas and dust. Using millimetre surveys of discs…”
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Coplanar circumbinary debris discs by Kennedy, G. M., Wyatt, M. C., Sibthorpe, B., Phillips, N. M., Matthews, B. C., Greaves, J. S.

“…Abstract We present resolved Herschel images of circumbinary debris discs in the α CrB (HD 139006) and β Tri (HD13161) systems. By modelling their structure,…”
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CO emission from discs around isolated HAeBe and Vega-excess stars by Dent, W. R. F., Greaves, J. S., Coulson, I. M.

“…We describe results from a survey for J = 3–2 12CO emission from visible stars classified as having an infrared excess. The line is clearly detected in 21…”
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ALMA and Herschel observations of the prototype dusty and polluted white dwarf G29-38 by Farihi, J., Wyatt, M. C., Greaves, J. S., Bonsor, A., Sibthorpe, B., Panić, O.

“…ALMA Cycle 0 and Herschel 1 PACS observations are reported for the prototype, nearest, and brightest example of a dusty and polluted white dwarf, G29-38. These…”
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New Debris Disks around Nearby Main-Sequence Stars: Impact on the Direct Detection of Planets by Beichman, C. A, Bryden, G, Stapelfeldt, K. R, Gautier, T. N, Grogan, K, Shao, M, Velusamy, T, Lawler, S. M, Blaylock, M, Rieke, G. H, Lunine, J. I, Fischer, D. A, Marcy, G. W, Greaves, J. S, Wyatt, M. C, Holland, W. S, Dent, W. R. F

“…Using the MIPS instrument on Spitzer, we have searched for infrared excesses around a sample of 82 stars, mostly F, G, and K main-sequence field stars, along…”
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Magnetic fields in planetary nebulae and post-AGB nebulae by Sabin, L., Zijlstra, Albert A., Greaves, J. S.

“…Magnetic fields are an important but largely unknown ingredient of planetary nebulae. They have been detected in oxygen-rich asymptotic giant branch (AGB) and…”
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Debris discs and comet populations around Sun-like stars: the Solar system in context by Greaves, J. S., Wyatt, M. C.

“…Numerous nearby FGK dwarfs possess discs of debris generated by collisions among comets. Here, we fit the levels of dusty excess observed by Spitzer at 70 μm…”
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Steady-state evolution of debris discs around solar-type stars by Kains, N., Wyatt, M. C., Greaves, J. S.

“…We present an analysis of debris disc data around Solar-type stars (spectral types F0-K5) using the steady-state analytical model of Wyatt et al. Models are…”
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The JCMT Legacy Survey of the Gould Belt: mapping 13CO and C18O in Orion A by Buckle, J. V., Davis, C. J., Francesco, J. Di, Graves, S. F., Nutter, D., Richer, J. S., Roberts, J. F., Ward-Thompson, D., White, G. J., Brunt, C., Butner, H. M., Cavanagh, B., Chrysostomou, A., Curtis, E. I., Duarte-Cabral, A., Etxaluze, M., Fich, M., Friberg, P., Friesen, R., Fuller, G. A., Greaves, J. S., Hatchell, J., Hogerheijde, M. R., Johnstone, D., Matthews, B., Matthews, H., Rawlings, J. M. C., Sadavoy, S., Simpson, R. J., Tothill, N. F. H., Tsamis, Y. G., Viti, S., Wouterloot, J. G. A., Yates, J.

“…The Gould Belt Legacy Survey will map star-forming regions within 500 pc, using Heterodyne Array Receiver Programme (HARP), Submillimetre Common-User Bolometer…”
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Target selection for the SUNS and DEBRIS surveys for debris discs in the solar neighbourhood by Phillips, N. M., Greaves, J. S., Dent, W. R. F., Matthews, B. C., Holland, W. S., Wyatt, M. C., Sibthorpe, B.

“…Debris discs – analogous to the asteroid and Kuiper–Edgeworth belts in the Solar system – have so far mostly been identified and studied in thermal emission…”
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Discovery of carbon monoxide in the upper atmosphere of Pluto by Greaves, J. S., Helling, Ch, Friberg, P.

“…ABSTRACT Pluto’s icy surface has changed colour and its atmosphere has swelled since its last closest approach to the Sun in 1989. The thin atmosphere is…”
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Synthesis of Hydrophilic Polymer-Grafted Ultrafine Inorganic Oxide Particles in Protic Media at Ambient Temperature via Atom Transfer Radical Polymerization:  Use of an Electrostatically Adsorbed Polyelectrolytic Macroinitiator by Chen, X. Y, Armes, S. P, Greaves, S. J, Watts, J. F

“…A new approach for the surface grafting of polymer chains to colloidal substrates is described. A cationic macroinitiator has been designed for the surface…”
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Synthesis of Vinyl Polymer−Silica Colloidal Nanocomposites Prepared Using Commercial Alcoholic Silica Sols by Percy, M. J, Amalvy, J. I, Randall, D. P, Armes, S. P, Greaves, S. J, Watts, J. F

“…The surfactant-free synthesis of vinyl polymer−silica nanocomposite particles has been achieved in aqueous alcoholic media at ambient temperature in the…”
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Origin of the metallicity dependence of exoplanet host stars in the protoplanetary disc mass distribution by Wyatt, M. C., Clarke, C. J., Greaves, J. S.

“…The probability of a star hosting a planet that is detectable in radial velocity surveys increases as Ppl(Z) ∝ (10Z)2, where Z is stellar metallicity. Models…”
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The JCMT Legacy Survey of the Gould Belt: a first look at Serpens with HARP by Graves, S. F., Richer, J. S., Buckle, J. V., Duarte-Cabral, A., Fuller, G. A., Hogerheijde, M. R., Owen, J. E., Brunt, C., Butner, H. M., Cavanagh, B., Chrysostomou, A., Curtis, E. I., Davis, C. J., Etxaluze, M., Francesco, J. Di, Friberg, P., Friesen, R. K., Greaves, J. S., Hatchell, J., Johnstone, D., Matthews, B., Matthews, H., Matzner, C. D., Nutter, D., Rawlings, J. M. C., Roberts, J. F., Sadavoy, S., Simpson, R. J., Tothill, N. F. H., Tsamis, Y. G., Viti, S., Ward-Thompson, D., White, G. J., Wouterloot, J. G. A., Yates, J.

“…The Gould Belt Legacy Survey on the James Clerk Maxwell Telescope's has observed a region of 260 arcmin2 in 12CO J= 3 → 2 emission, and a 190 arcmin2 subset of…”
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Synthesis of Vinyl Polymer−Silica Colloidal Nanocomposites via Aqueous Dispersion Polymerization by Percy, M. J, Michailidou, V, Armes, S. P, Perruchot, C, Watts, J. F, Greaves, S. J

“…The surfactant-free synthesis of colloidal dispersions of vinyl polymer−silica nanocomposite particles in aqueous media using a batch emulsion polymerization…”
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Submillimeter Images of a Dusty Kuiper Belt around η Corvi by Wyatt, M. C, Greaves, J. S, Dent, W. R. F, Coulson, I. M

“…We present submillimeter and mid-IR images of the circumstellar disk around the nearby F2 V star eta Corvi. The disk is resolved at 850 mu m with a size of…”
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