• CE 315: a new interacting double-degenerate binary star 

      Ruiz González, María Teresa; Rojo Rubke, Patricio Michel; Garay Brignardello, Guido; Maza, José (UNIV CHICAGO PRESS, 2001-05-10)
      We present spectroscopic observations of object CE 315 revealing a blue continuum with strong emission lines. Most of the detected lines are identified with He I or He II in emission, with a handful of faint lines of ...
    • Improved signal detection algorithms for unevenly sampled data. Six signals in the radial velocity data for GJ876 

      Rojo Rubke, Patricio Michel; Jenkins, James Stewart; Becerra Yoma, Néstor; Mahu, R.; Wuth Sepúlveda, Jorge Iván. (Montlhy Notices of The Royal Society Astronomy, 2014-04-04)
      The hunt for Earth analogue planets orbiting Sun-like stars has forced the introduction of novel methods to detect signals at, or below, the level of the intrinsic noise of the observations. We present a new global ...
    • A library of near-infrared integral field spectra of young M–L dwarfs 

      Bonnefoy, M.; Chauvin, G.; Lagrange, A. M.; Rojo Rubke, Patricio Michel; Allard, F.; Pinte, Christophe; Dumas, C.; Homeier, D. (EDP Sciences, 2014)
      Context. At young ages, low surface gravity a ects the atmospheric properties of ultracool dwarfs. The impact on medium-resolution near-infrared (NIR) spectra has only been slightly investigated at the M–L transition so ...
    • New constraints on the formation and settling of dust in the atmospheres of young M and L dwarfs 

      Rojo Rubke, Patricio Michel; Manjacavas, E.; Bonnefoy, M.; Schlieder, J. E.; Allard, F.; Goldman, B.; Chauvin, G.; Homeier, D.; Lodieu, N.; Henning, T. (2014-04)
      Context. Gravity modifies the spectral features of young brown dwarfs (BDs). A proper characterization of these objects is crucial for the identification of the least massive and latest-type objects in star-forming regions, ...
    • Precision radial velocities of 15 M5–M9 dwarfs 

      Rojo Rubke, Patricio Michel; Jenkins, James Stewart; Jones, H.R.A.; Jeffers, S. V.; Arriagada, P.; Jordán, A.; Minniti, D.; Tuomi, M.; Pinfield, D.; Anglada-Escudé, G. (Royal Astronomical Society, 2014-02-20)
      We present radial velocity measurements of a sample of M5V–M9V stars from our Red-Optical Planet Survey, operating at 0.652–1.025 µm. Radial velocities for 15 stars, with rms precision down to 2.5 m s−1 over a week-long ...
    • The properties of planets around giant stars 

      Rojo Rubke, Patricio Michel; Jenkins, James Stewart; Bluhm, P.; Melo, H. F. (2014-12-23)
      Context. More than 50 exoplanets have been found around giant stars, revealing different properties when compared to planets orbiting solar-type stars. In particular, they are super-Jupiters and are not found orbiting ...
    • Stellar activity as a tracer of moving groups 

      Murgas, F.; Jenkins, James Stewart; Rojo Rubke, Patricio Michel; Jones, H. R.; Pinfield, D. J. (EDP Sciences, 2013)
      We present the results of a study of the stellar activity in the solar neighborhood using complete kinematics (galactocentric velocities U, V, W) and the chromospheric activity index log R0 HK. We analyzed the average ...