Now showing items 1-15 of 15

    • Ellipsoidal variability and the difference between sequence D and E red giants 

      Nicholls, C.P.; Wood, P.R.; Cioni, M-R.L. (2010)
      We have studied a sample of Large Magellanic Cloud red giant binaries that lie on sequence E in the period–luminosity plane. We show that their combined light and velocity curves unambiguously demonstrate that they are ...
    • ESO-VLT and Spitzer spectroscopy of IRAS 05328−6827 : a massive young stellar object in the Large Magellanic Cloud 

      van Loon, J.T.; Oliveira, J.M.; Wood, P.R.; Zijlstra, A.A.; Sloan, G.C.; Matsuura, M.; Whitelock, P.A.; Groenewegen, M.A.T.; Blommaert, J.A.D.L.; Cioni, M-R.L.; Hony, S.; Loup, C.; Waters, L.B.F.M. (2005)
    • Long secondary periods in variable red giants 

      Nicholls, C.P.; Wood, P.R.; Cioni, M-R.L.; Soszynski, I. (2009)
      We present a study of a sample of Large Magellanic Cloud red giants exhibiting Long Secondary Periods (LSPs). We use radial velocities obtained from VLT spectral observations and MACHO and OGLE light curves to examine ...
    • The Magellanic Clouds as a Template for the Study of Stellar Populations and Galaxy Interactions 

      Cioni, M-R.L.; Bekki, K.; Clementini, G.; de Blok, W.J.G.; Emerson, J.P.; Evans, Chris J.; de Grijs, R.; Gibson, B. K.; Girardi, L.; Groenewegen, M.A.T.; Ivanov, V.D.; Leisy, P.; Marconi, M.; Mastropietro, C.; Moore, B.; Naylor, T.; Oliveira, J.M.; Ripepi, V.; van Loon, J. Th; Wilkinson, Mark; Wood, P.R. (2008-01)
      The Magellanic System represents one of the best places to study the formation and evolution of galaxies. Photometric surveys of various depths, areas and wavelengths have had a significant impact on our understanding of ...
    • Metal-rich carbon stars in the Sagittarius dwarf spheroidal galaxy 

      Lagadec, E.; Zijlstra, A.A.; Sloan, G.C.; Wood, P.R.; Matsuura, M.; Bernard-Salas, J.; Blommaert, J.A.D.L.; Cioni, M-R.L.; Feast, M.W.; Groenewegen, M.A.T.; Hony, S.; Menzies, J.W.; van Loon, J.T.; Whitelock, P.A. (2009)
      We present spectroscopic observations from the Spitzer Space Telescope of six carbon-rich asymptotic giant branch (AGB) stars in the Sagittarius dwarf spheroidal galaxy (Sgr dSph) and two foreground Galactic carbon stars. ...
    • Molecules and Dust Grains in AGB Stars in Nearby Galaxies—the Influence of Metallicities 

      Matsuura, M.; Zijlstra, A.A.; Wood, P.R.; Sloan, G.C.; Groenewegen, M.A.T.; Lagadec, E.; van Loon, J.T.; Whitelock, P.A.; Bernard-Salas, J.; Menzies, J.W.; Cioni, M-R.L.; Feast, M.W.; Harris, G.J. (2007)
      We have obtained infrared spectra of carbon stars in four nearby galaxies—the Large and Small Magellanic Clouds, the Sagittarius dwarf spheroidal galaxy, and the Fornax dwarf spheroidal galaxy. Our primary aim is to ...
    • Molecules and Dust Grains in AGB Stars in Nearby Galaxies—the Influence of Metallicities 

      Matsuura, M.; Zijlstra, A.A.; Wood, P.R.; Sloan, G.C.; Groenewegen, M.A.T.; Lagadec, E.; van Loon, J.T.; Whitelock, P.A.; Bernard-Salas, J.; Menzies, J.W.; Cioni, M-R.L.; Feast, M.W.; Harris, G.J. (American Institute of Physics (AIP), 2007)
      We have obtained infrared spectra of carbon stars in four nearby galaxies—the Large and Small Magellanic Clouds, the Sagittarius dwarf spheroidal galaxy, and the Fornax dwarf spheroidal galaxy. Our primary aim is to ...
    • New results on long secondary periods in red giants 

      Nicholls, C.P.; Wood, P.R.; Cioni, M-R.L.; Soszynski, I. (2009)
      Approximately 30% of variable red giants have light curves which show a Long Secondary Period (LSP) in addition to their primary oscillation. No model has been proposed that can satisfactorily explain the LSPs. Here we ...
    • New results on long secondary periods in red giants 

      Nicholls, C.P.; Wood, P.R.; Cioni, M-R.L.; Soszynski, I. (2009)
      Approximately 30% of variable red giants have light curves which show a Long Secondary Period (LSP) in addition to their primary oscillation. No model has been proposed that can satisfactorily explain the LSPs. Here we ...
    • A Spitzer mid-infrared spectral survey of mass-losing carbon stars in the Large Magellanic Cloud 

      Zijlstra, A.A.; Matsuura, M.; Wood, P.R.; Sloan, G.C.; Lagadec, E.; van Loon, J.T.; Groenewegen, M.A.T.; Feast, M.W.; Menzies, J.W.; Whitelock, P.A.; Blommaert, J.A.D.L.; Cioni, M-R.L.; Habing, H.J.; Hony, S.; Loup, C.; Waters, L.B.F.M. (2006)
    • Spitzer observations of acetylene bands in carbon-rich asymptotic giant branch stars in the Large Magellanic Cloud 

      Matsuura, M.; Wood, P.R.; Sloan, G.C.; Zijlstra, A.A.; van Loon, J.T.; Groenewegen, M.A.T.; Blommaert, J.A.D.L.; Cioni, M-R.L.; Feast, M.W.; Habing, H.J.; Hony, S.; Lagadec, E.; Loup, C.; Menzies, J.W.; Waters, L.B.F.M.; Whitelock, P.A. (2006)
    • Spitzer Space Telescope spectral observations of AGB stars in the Fornax dwarf spheroidal galaxy 

      Matsuura, M.; Zijlstra, A.A.; Bernard-Salas, J.; Menzies, J.W.; Sloan, G.C.; Whitelock, P.A.; Wood, P.R.; Cioni, M-R.L.; Feast, M.W.; Lagadec, E.; van Loon, J.T.; Groenewegen, M.A.T.; Harris, G.J. (2007)
    • Spitzer spectroscopy of carbon stars in the Small Magellanic Cloud 

      Lagadec, E.; Zijlstra, A.A.; Sloan, G.C.; Matsuura, M.; Wood, P.R.; van Loon, J.T.; Harris, G.J.; Blommaert, J.A.D.L.; Hony, S.; Groenewegen, M.A.T.; Feast, M.W.; Whitelock, P.A.; Menzies, J.W.; Cioni, M-R.L. (2007)
    • The VMC survey I. Strategy and first data 

      Cioni, M-R.L.; Clementini, G.; Girardi, L.; Guandalini, R.; Gullieuszik, M.; Miszalski, B.; Moretti, M.I.; Ripepi, V.; Rubele, S.; Bagheri, G.; Bekki, K.; Cross, N.J.G.; de Blok, W.J.G.; de Grijs, R.; Emerson, J.P.; Evans, C.J.; Gibson, B.; Gonzales-Solares, E.; Groenewegen, M.A.T.; Irwin, M.J.; Ivanov, V.D.; Lewis, J.; Marconi, M.; Marquette, J-B.; Mastropietro, C.; Moore, B.; Napiwotzki, R.; Naylor, T.; Oliveira, J.M.; Read, M.; Sutorius, E.; van Loon, J.T.; Wilkinson, M.I.; Wood, P.R. (2011-03)
      Context: The new VISual and Infrared Telescope for Astronomy (VISTA) has started operations. Over its first five years it will be collecting data for six public surveys, one of which is the near-infrared YJK(s) VISTA survey ...
    • The VMC survey VI : Quasars behind the Magellanic system 

      Cioni, M-R.L.; Kamath, D.; Wood, P.R.; Rubele, S.; Van Loon, J.T.; Emerson, J.P.; Gibson, B. K.; Groenewegen, M.A.T.; Ivanov, V.D.; Miszalski, B.; Ripepi, V. (2013-01)
      Context. The number and spatial distribution of confirmed quasi-stellar objects (QSOs) behind the Magellanic system is limited. This undermines their use as astrometric reference objects for different types of studies. ...