Now showing items 1-7 of 7

    • A clustered origin for isolated massive stars 

      Lucas, William E.; Rybak, Matus; Bonnell, Ian A.; Gieles, Mark (2018-03-01) - Journal article
      High-mass stars are commonly found in stellar clusters promoting the idea that their formation occurs due to the physical processes linked with a young stellar cluster. It has recently been reported that isolated high-mass ...
    • The EBLM Project : IV. Spectroscopic orbits of over 100 eclipsing M dwarfs masquerading as transiting hot-Jupiters 

      Triaud, Amaury H. M. J.; Martin, David V.; Ségransan, Damien; Smalley, Barry; Maxted, Pierre F. L.; Anderson, David R.; Bouchy, François; Collier Cameron, Andrew; Faedi, Francesca; Gómez Maqueo Chew, Yilen; Hebb, Leslie; Hellier, Coel; Marmier, Maxime; Pepe, Francesco; Pollacco, Don; Queloz, Didier; Udry, Stéphane; West, Richard (2017-12) - Journal article
      We present 2271 radial velocity measurements taken on 118 single-line binary stars, taken over eight years with the CORALIE spectrograph. The binaries consist of F/G/K primaries and M dwarf secondaries. They were initially ...
    • The formation of high-mass binary star systems 

      Lund, Kristin; Bonnell, Ian A (2018-09-11) - Journal article
      We develop a semi-analytic model to investigate how accretion on to wide low-mass binary stars can result in a close high-mass binary system. The key ingredient is to allow mass accretion while limiting the gain in angular ...
    • Formation of stellar clusters 

      Smilgys, Romas; Bonnell, Ian Alexander (2017-12-21) - Journal article
      We investigate the triggering of star formation and the formation of stellar clusters in molecular clouds that form as the ISM passes through spiral shocks. The spiral shock compresses gas into 100 pc long main star formation ...
    • The relation between accretion rates and the initial mass function in hydrodynamical simulations of star formation 

      Maschberger, T.; Bonnell, I.A.; Clarke, C.J.; Moraux, E. (2014-03-21) - Journal article
      We analyse a hydrodynamical simulation of star formation. Sink particles in the simulations which represent stars show episodic growth, which is presumably accretion from a core that can be regularly replenished in response ...
    • Star formation in Galactic flows 

      Smilgys, Romas; Bonnell, Ian A. (2016-06-21) - Journal article
      We investigate the triggering of star formation in clouds that form in Galactic scale flows as the interstellar medium passes through spiral shocks. We use the Lagrangian nature of smoothed particle hydrodynamics simulations ...
    • Substellar objects in nearby young clusters (SONYC). VIII. Substellar population in Lupus 3 

      Mužić, K.; Scholz, A.; Geers, V.C.; Jayawardhana, R.; Martí, B.L. (2014-04-20) - Journal article
      SONYC - Substellar Objects in Nearby Young Clusters - is a survey program to investigate the frequency and properties of substellar objects in nearby star-forming regions. We present a new imaging and spectroscopic survey ...