Now showing items 2922-2941 of 4729

    • Ocean-flank collapse on the south of Taʾu, Manuʾa Group, Samoa Islands: implications for risk management 

      Williams, Shaun Paul (University of Canterbury. Geological Sciences, 2009)
      Ocean-island flank collapses are amongst the most dangerous of all landslide related hazards in the world, as they have the potential to trigger ocean-wide tsunamis that can cause damage and loss of life to communities ...
    • Oceans and their circulation 

      Bury, Sarah (Oxford University PressUniversity of Canterbury. Geography, 2001)
      A knowledge of the key water masses and currents that affect New Zealand is invaluable to understanding near-shore and coastal processes, and the chemistry and biology of oceanic and coastal waters. This chapter introduces ...
    • Octasubstituted biphenylenes: is there a favoured conformation? 

      Steel, P.J.; McMorran, D.A. (University of Canterbury. Chemistry., 2007)
      Octakis(pyrazol-1-ylmethyl)biphenylene ethanol solvate, C₄₄H₄₀N₁₆C₂H₆O, has two independent centrosymmetric molecules, one of which is hydrogen bonded to the solvent molecule. One molecule adopts an arrangement with three ...
    • Offending outcomes for Māori and non-Māori, an investigation of ethnic bias in the criminal justice system : evidence from a New Zealand birth cohort. 

      Jones, Bridgette L. (University of Canterbury, 2016)
      Māori have been overrepresented in the New Zealand criminal justice system for decades. Māori are significantly more likely to be disadvantaged by risk factors which are linked to criminal offending behaviours. Overseas ...
    • OGLE-2005-BLG-071Lb, the Most Massive M Dwarf Planetary Companion? 

      Christie, G.W.; Gaudi, B.S.; Kubiak, M.; Szymanski, M.K.; Pietrzynski, G.; Soszynski, I.; Szewczyk, O.; Ulaczyk, K.; Wyrzykowski, L.; Fox, D.B.; Gal-Yam, A.; Han, C.; Lepine, S.; McCormick, J.; Ofek, E.; Park, B.G.; Pogge, R.W.; Abe, F.; Bennett, D.P.; Bond, I.A.; Britton, T.R.; Gilmore, A.C.; Hearnshaw, J.B.; Itow, Y.; Kamiya, K.; Kilmartin, P.M.; Korpela, A.; Masuda, K.; Matsubara, Y.; Motomura, M.; Muraki, Y.; Nakamura, S.; Ohnishi, K.; Okada, C.; Rattenbury, N.; Saito, T.; Sako, T.; Sasaki, M.; Sullivan, D.; Sumi, T.; Tristram, P.J.; Yanagisawa, T.; Yock, P.C.M.; Yoshoika, T.; Beaulieu, J.P.; Brillant, S.; Calitz, H.; Cassan, A.; Cook, K.H.; Coutures, C.; Dieters, S.; Prester, D.D.; Donatowicz, J.; Fouque, P.; Greenhill, J.; Hill, K.; Hoffman, M.; Horne, K.; Jaroszynski, M.; Dong, S.; Albrow, M.D.; Gould, A.; DePoy, D.L.; Udalski, A.; Anderson, J. (University of Canterbury. Physics and Astronomy, 2009)
      We combine all available information to constrain the nature of OGLE-2005-BLG-071Lb, the second planet discovered by microlensing and the first in a high-magnification event. These include photometric and astrometric ...
    • OGLE-2011-BLG-0265Lb: A Jovian Microlensing Planet Orbiting an M Dwarf 

      Skowron, J.; Shin, I-G.; Udalski, A.; Han, C.; Sumi, T.; Shvartzvald, Y.; Gould, A.; Dominis Prester, D.; Street, R.A.; Jørgensen, U.G. (University of Canterbury. Physics and Astronomy, 2015)
      We report the discovery of a Jupiter-mass planet orbiting an M-dwarf star that gave rise to the microlensing event OGLE-2011-BLG-0265. Such a system is very rare among known planetary systems and thus the discovery is ...
    • OGLE-2015-BLG-1459L: The Challenges of Exo-Moon Microlensing 

      Hwang K-H; Udalski A; Bond IA; Albrow MD; Chung S-J; Gould A; Han C; Jung YK; Ryu Y-H; Shin I-G; Yee JC; Zhu W; Cha S-M; Kim D-J; Kim H-W; Kim S-L; Lee C-U; Lee D-J; Lee Y; Park B-G; Pogge RW; Pawlak M; Poleski R; Szymański MK; Skowron J; Soszyński I; Mróz P; Kozłowski S; Pietrukowicz P; Ulaczyk K; Abe F; Asakura Y; Barry R; Bennett DP; Bhattacharya A; Donachie M; Evans P; Fukui A; Hirao Y; Itow Y; Kawasaki K; Koshimoto N; Li MCA; Ling CH; Masuda K; Matsubara Y; Miyazaki S; Muraki Y; Nagakane M; Ohnishi K; Ranc C; Rattenbury NJ; Saito T; Sharan A; Sullivan DJ; Sumi T; Suzuki D; Tristram PJ; Yamada T; Yamada T; Yonehara A (2017)
      We show that dense OGLE and KMTNet $I$-band survey data require four bodies (sources plus lenses) to explain the microlensing light curve of OGLE-2015-BLG-1459. However, these can equally well consist of three lenses ...
    • OGLE-2016-BLG-0168 Binary Microlensing Event: Prediction and Confirmation of the Microlens Parallax Effect from Space-based Observations 

      Shin IG; Udalski A; Yee JC; Novati SC; Han C; Skowron J; Mróz P; Soszyński I; Poleski R; Szymański MK; Kozłowski S; Pietrukowicz P; Ulaczyk K; Pawlak M; Albrow MD; Gould A; Chung SJ; Hwang KH; Jung YK; Ryu YH; Zhu W; Cha SM; Kim DJ; Kim HW; Kim SL; Lee CU; Lee Y; Park BG; Pogge RW; Beichman C; Bryden G; Carey S; Gaudi BS; Henderson CB; Shvartzvald Y (2017)
      © 2017. The American Astronomical Society. All rights reserved.. The microlens parallax is a crucial observable for conclusively identifying the nature of lens systems in microlensing events containing or composed of faint ...
    • OGLE-2016-BLG-0263Lb: Microlensing Detection of a Very Low-mass Binary Companion through a Repeating Event Channel 

      Han C; Udalski A; Gould A; Bond IA; Albrow MD; Chung SJ; Jung YK; Ryu YH; Shin IG; Yee JC; Zhu W; Cha SM; Kim SL; Kim DJ; Lee CU; Lee Y; Park BG; Skowron J; Mróz P; Pietrukowicz P; Kozłowski S; Poleski R; Szymański MK; Soszyński I; Ulaczyk K; Pawlak M; Abe F; Asakura Y; Barry R; Bennett DP; Bhattacharya A; Donachie M; Evans P; Fukui A; Hirao Y; Itow Y; Koshimoto N; Li MCA; Ling CH; Masuda K; Matsubara Y; Muraki Y; Nagakane M; Ohnishi K; Ranc C; Rattenbury NJ; Saito T; Sharan A; Sullivan DJ; Sumi T; Suzuki D; Tristram PJ; Yamada T; Yamada T; Yonehara A (2017)
      © 2017. The American Astronomical Society. All rights reserved. We report the discovery of a planet-mass companion to the microlens OGLE-2016-BLG-0263L. Unlike most lowmass companions that were detected through perturbations ...
    • OGLE-2016-BLG-0613LABb: A Microlensing Planet in a Binary System 

      Han C; Udalski A; Gould A; Lee CU; Shvartzvald Y; Zang WC; Mao S; Kozłowski S; Albrow MD; Chung SJ; Hwang KH; Jung YK; Kim D; Kim HW; Ryu YH; Shin IG; Yee JC; Zhu W; Cha SM; Kim SL; Kim DJ; Lee Y; Park BG; Skowron J; Mróz P; Pietrukowicz P; Poleski R; Szymański MK; Soszyński I; Ulaczyk K; Pawlak M; Beichman C; Bryden G; Novati SC; Gaudi BS; Henderson CB; Howell SB; Jacklin S; Penny MT; Fouqué P; Wang TS (2017)
      © 2017. The American Astronomical Society. All rights reserved.. We present the analysis of OGLE-2016-BLG-0613, for which the lensing light curve appears to be that of a typical binary-lens event with two caustic spikes ...
    • OGLE-2016-BLG-0693LB: Probing the brown dwarf desert with microlensing 

      Ryu YH; Udalski A; Yee JC; Albrow MD; Chung SJ; Gould A; Han C; Hwang KH; Jung YK; Shin IG; Zhu W; Cha SM; Kim DJ; Kim HW; Kim SL; Lee CU; Lee Y; Park BG; Pogge RW; Pietrukowicz P; Kozłowski S; Poleski R; Skowron J; Mróz P; Szymański MK; Soszyński I; Pawlak M; Ulaczyk K (2017)
      © 2017. The American Astronomical Society. All rights reserved. We present an analysis of microlensing event OGLE-2016-BLG-0693, based on the survey-only microlensing observations by the OGLE and KMTNet groups. In order ...
    • OGLE-2016-BLG-1003: First Resolved Caustic-crossing Binary-source Event Discovered by Second-generation Microlensing Surveys 

      Jung YK; Udalski A; Bond IA; Yee JC; Gould A; Han C; Albrow MD; Lee CU; Kim SL; Hwang KH; Chung SJ; Ryu YH; Shin IG; Zhu W; Cha SM; Kim DJ; Lee Y; Park BG; Kim HW; Pogge RW; Skowron J; Szymański MK; Poleski R; Mróz P; Kozłowski S; Pietrukowicz P; Soszyński I; Ulaczyk K; Pawlak M; Abe F; Bennett DP; Barry R; Sumi T; Asakura Y; Bhattacharya A; Donachie M; Fukui A; Hirao Y; Itow Y; Koshimoto N; Li MCA; Ling CH; Masuda K; Matsubara Y; Muraki Y; Nagakane M; Rattenbury NJ; Evans P; Sharan A; Sullivan DJ; Suzuki D; Tristram PJ; Yamada T; Yamada T; Yonehara A (2017)
      We report the analysis of the first resolved caustic-crossing binary-source microlensing event OGLE-2016-BLG-1003. The event is densely covered by the round-the-clock observations of three surveys. The light curve is ...
    • OGLE-2016-BLG-1045: A Test of Cheap Space-Based Microlens Parallaxes 

      Shin I-G; Udalski A; Yee JC; Novati SC; Christie G; Poleski R; Mróz P; Skowron J; Szymański MK; Soszyński I; Pietrukowicz P; Kozłowski S; Ulaczyk K; Pawlak M; Natusch T; Pogge RW; Gould A; Han C; Albrow MD; Chung S-J; Hwang K-H; Ryu Y-H; Jung YK; Zhu W; Lee C-U; Cha S-M; Kim D-J; Kim H-W; Kim S-L; Lee Y; Lee D-J; Park B-G; Beichman C; Bryden G; Carey S; Gaudi BS; Henderson CB; Shvartzvald Y (2018)
      Microlensing is a powerful and unique technique to probe isolated objects in the Galaxy. To study the characteristics of these interesting objects based on the microlensing method, measurement of the microlens parallax ...
    • OGLE-2016-BLG-1190Lb: First Spitzer Bulge Planet Lies Near the Planet/Brown-Dwarf Boundary 

      Ryu Y-H; Yee JC; Udalski A; Bond IA; Shvartzvald Y; Zang W; Jaimes RF; Jorgensen UG; Zhu W; Huang CX; Jung YK; Albrow MD; Chung S-J; Gould A; Han C; Hwang K-H; Shin I-G; Cha S-M; Kim D-J; Kim H-W; Kim S-L; Lee C-U; Lee D-J; Lee Y; Park B-G; Pogge RW; Novati SC; Carey S; Henderson CB; Beichman C; Gaudi BS; Mróz P; Poleski R; Skowron J; Szymanski MK; Soszynski I; Kozlowski S; Pietrukowicz P; Ulaczyk K; Pawlak M; Abe F; Asakura Y; Barry R; Bennett DP; Bhattacharya A; Donachie M; Evans P; Fukui A; Hirao Y; Itow Y; Kawasaki K; Koshimoto N; Li MCA; Ling CH; Masuda K; Matsubara Y; Miyazaki S; Muraki Y; Nagakane M; Ohnishi K; Ranc C; Rattenbury NJ; Saito T; Sharan A; Sullivan DJ; Sumi T; Suzuki D; Tristram PJ; Yamada T; Yamada T; Yonehara A; Bryden G; Howell SB; Jacklin S; Penny MT; Mao S; Fouque P; Wang T; Street RA; Tsapras Y; Hundertmark M; Bachelet E; Dominik M; Li Z; Cross S; Cassan A; Horne K; Schmidt R; Wambsganss J; Ment SK; Maoz D; Snodgrass C; Steele IA; Bozza V; Burgdorf MJ; Ciceri S; D'Ago G; Evans DF; Hinse TC; Kerins E; Kokotanekova R; Longa P; MacKenzie J; Popovas A; Rabus M; Rahvar S; Sejadian S; Skottfelt J; Southworth J; Essen CV (2017)
      We report the discovery of OGLE-2016-BLG-1190Lb, which is likely to be the first Spitzer microlensing planet in the Galactic bulge/bar, an assignation that can be confirmed by two epochs of high-resolution imaging of the ...
    • OGLE-2016-BLG-1266: A Probable Brown-Dwarf/Planet Binary at the Deuterium Fusion Limit 

      Albrow MD; Yee JC; Udalski A; Novati SC; Carey S; Henderson CB; Beichman C; Bryden G; Gaudi BS; Shvartzvald Y; Szymanśki MK; Mroź P; Skowron J; Poleski R; Soszynśki I; Kozlowski S; Pietrukowicz; Ulaczyk K; Pawlak M; Chung S-J; Gould A; Han C; Hwang K-H; Jung YK; Ryu Y-H; Shin I-G; Zhu W; Cha S-M; Kim D-J; Kim H-W; Kim S-L; Lee C-U; Lee D-J; Lee Y; Park B-G; Pogge RW (2018)
      We report the discovery, via the microlensing method, of a new very-low-mass binary system. By combining measurements from Earth and from the Spitzer telescope in Earth-trailing orbit, we are able to measure the ...
    • OGLE-2016-BLG-1469L: Microlensing Binary Composed of Brown Dwarfs 

      Han C; Udalski A; Sumi T; Gould A; Albrow MD; Chung SJ; Jung YK; Ryu YH; Shin IG; Yee JC; Zhu W; Cha SM; Kim SL; Kim DJ; Lee CU; Lee Y; Park BG; Soszyński I; Mróz P; Pietrukowicz P; Szymański MK; Skowron J; Poleski R; Kozłowski S; Ulaczyk K; Pawlak M; Abe F; Asakura Y; Bennett DP; Bond IA; Bhattacharya A; Donachie M; Freeman M; Fukui A; Hirao Y; Itow Y; Koshimoto N; Li MCA; Ling CH; Masuda K; Matsubara Y; Muraki Y; Nagakane M; Ohnishi K; Oyokawa H; Rattenbury NJ; Saito T; Sharan A; Sullivan DJ; Suzuki D; Tristram PJ; Yamada T; Yamada T; Yonehara A; Barry R (2017)
      © 2017. The American Astronomical Society. All rights reserved. We report the discovery of a binary composed of two brown dwarfs, based on the analysis of the microlensing event OGLE-2016-BLG-1469. Thanks to the detection ...
    • OGLE-2017-BLG-0039: Microlensing Event with Light from a Lens Identified from Mass Measurement 

      Han C; Jung YK; Udalski A; Bond I; Bozza V; Albrow MD; Chung SJ; Gould A; Hwang KH; Kim D; Lee CU; Kim HW; Ryu YH; Shin IG; Yee JC; Shvartzvald Y; Cha SM; Kim SL; Kim DJ; Lee DJ; Lee Y; Park BG; Pogge RW; Szymański MK; Mróz P; Skowron J; Poleski R; Soszyński I; Kozłowski S; Pietrukowicz P; Ulaczyk K; Pawlak M; Abe F; Barry R; Bennett DP; Bhattacharya A; Donachie M; Evans P; Fukui A; Hirao Y; Itow Y; Kawasaki K; Koshimoto N; Li MCA; Ling CH; Matsubara Y; Miyazaki S; Munakata H; Muraki Y; Nagakane M; Ohnishi K; Ranc C; Rattenbury N; Saito T; Sharan A; Sullivan DJ; Sumi T; Suzuki D; Tristram PJ; Yamada T; Yonehara A (2018)
      © 2018. The American Astronomical Society. All rights reserved. We present an analysis of the caustic-crossing binary microlensing event OGLE-2017-BLG-0039. Thanks to the very long duration of the event, with a time scale ...
    • OGLE-2017-BLG-0173Lb: Low-mass-ratio Planet in a "Hollywood" Microlensing Event 

      Hwang K-H; Udalski A; Shvartzvald Y; Ryu Y-H; Albrow MD; Chung S-J; Gould A; Han C; Jung YK; Shin I-G; Yee JC; Zhu W; Cha S-M; Kim D-J; Kim H-W; Kim S-L; Lee C-U; Lee D-J; Lee Y; Park B-G; Pogge RW; Skowron J; Mroz P; Poleski R; Kozlowski S; Soszynski I; Pietrukowicz P; Szymanski MK; Ulaczyk K; Pawlak M; Bryden G; Beichman C; Novati SC; Gaudi BS; Henderson CB; Jacklin S; Penny MT; Collaboration K; Collaboration OGLE; Team UKIRTM (2018)
      We present microlensing planet OGLE-2017-BLG-0173Lb, with planet-host mass ratio either $q\simeq 2.5\times 10^{-5}$ or $q\simeq 6.5\times 10^{-5}$, the lowest or among the lowest ever detected. The planetary perturbation ...
    • OGLE-2017-BLG-0329L: A Microlensing Binary Characterized with Dramatically Enhanced Precision Using Data from Space-based Observations 

      Han C; Novati SC; Udalski A; Lee C-U; Gould A; Bozza V; Mróz P; Pietrukowicz P; Skowron J; Szymański MK; Poleski R; Soszyński I; Kozłowski S; Ulaczyk K; Pawlak M; Rybicki K; Iwanek P; Albrow MD; Chung S-J; Hwang K-H; Jung YK; Ryu Y-H; Shin I-G; Shvartzvald Y; Yee JC; Zang W; Zhu W; Cha S-M; Kim D-J; Kim H-W; Kim S-L; Lee D-J; Lee Y; Park B-G; Pogge RW; Kim W-T; Beichman C; Bryden G; Carey S; Gaudi BS; Henderson CB; Dominik M; Helling C; Hundertmark M; Jørgensen UG; Longa-Peña P; Lowry S; Sajadian S; Burgdorf MJ; Campbell-White J; Ciceri S; Evans DF; Haikala LK; Hinse TC; Rahvar S; Rabus M; Snodgrass C (2018)
      Mass measurements of gravitational microlenses require one to determine the microlens parallax PIe, but precise PIe measurement, in many cases, is hampered due to the subtlety of the microlens-parallax signal combined ...
    • OGLE-2017-BLG-0373Lb: A Jovian Mass-Ratio Planet Exposes A New Accidental Microlensing Degeneracy 

      Skowron J; Ryu Y-H; Hwang K-H; Udalski A; Mróz P; Kozłowski S; Soszyński I; Pietrukowicz P; Szymański MK; Poleski R; Ulaczyk K; Pawlak M; Rybicki K; Iwanek P; Albrow MD; Chung S-J; Gould A; Han C; Jung YK; Shin I-G; Shvartzvald Y; Yee JC; Zang W; Zhu RW; Cha S-M; Kim D-J; Kim H-W; Kim S-L; Lee C-U; Lee D-J; Lee Y; Park B-G; Pogge RW (2018)
      We report the discovery of microlensing planet OGLE-2017-BLG-0373Lb. We show that while the planet-host system has an unambiguous microlens topology, there are two geometries within this topology that fit the data equally ...