Browsing by Author "Gieren, W."

Now showing items 1-9 of 9

    • A new Neptune-mass planet orbiting HD219828 
      Melo, C.; Santos, N. C.; Gieren, W.; Pietrzynski, Grzegorz; Ruiz González, María Teresa; Sousa, S. G.; Bouchy, F.; Lovis, C.; Mayor, M.; Pepe, F.; Queloz, D.; Da Silva, R.; Udry, S. (2007)
      Two years ago a new benchmark for the planetary survey was set with the discoveries of three extrasolar planets with masses below 20 M-circle plus. In particular, the serendipitous discovery of the 14 M-circle plus planet ...
    • The Araucaria Project: High-precision orbital parallax and masses of the eclipsing binary TZ Fornacis 
      Gallenne, A.; Pietrzynski, G.; Graczyk, D.; Konorski, P.; Kervella, Pierre; Merand, A.; Gieren, W.; Anderson, R.; Villanova, S. (EDP SCIENCES, 2016)
      Context. Independent distance estimates are particularly useful to check the precision of other distance indicators, while accurate and precise masses are necessary to constrain evolution models. Aims. The goal is to ...
    • Inspecting the Cepheid parallax of pulsation using Gaia EDR3 parallaxes Projection factor and period-luminosity ... 
      Trahin, B.; Breuval, L.; Kervella, P.; Merand, A.; Nardetto, N.; Gallenne, Alexandre; Hocde, V.; Gieren, W. (EDP, 2021)
      Context. As primary anchors of the distance scale, Cepheid stars play a crucial role in our understanding of the distance scale of the Universe because of their period-luminosity relation. Determining precise and consistent ...
    • Millimagnitude photometry for transiting extrasolar planetary candidates - V. Follow-up of 30 OGLE transits. ... 
      Pietrukowicz, P.; Minniti, D.; Díaz, R. F.; Fernández, J. M.; Zoccali, M.; Gieren, W.; Pietrzynski, G.; Ruiz González, María Teresa; Udalski, A.; Szeifert, T.; Hempel Leyton, Marie Claire (ESO, 2010)
      Aims. We used VLT/VIMOS images in the V band to obtain light curves of the extrasolar planetary transits OGLE-TR-111 and OGLE-TR-113 and the candidate planetary transits: OGLE-TR-82, OGLE-TR-86, OGLE-TR-91, OGLE-TR-106, ...
    • OGLE-TR-211 - a new transiting inflated hot Jupiter from the OGLE survey and ESO LP666 spectroscopic follow-up ... 
      Udalski, A.; Pont, F.; Naef, D.; Melo, C.; Bouchy, F.; Santos, N. C.; Moutou, C.; Díaz, R. F.; Gieren, W.; Gillón, M.; Hoyer, Sergio; Mayor, M.; Mazeh, T.; Minniti, D.; Pietrzyński, G.; Queloz, D.; Ramírez, S.; Ruiz González, María Teresa; Tamuz, O.; Udry, S.; Zoccali, Manuela; Kubiak, M.; Szymański, M. K.; Soszyński, I.; Szewczyk, O.; Ulaczyk, K.; Wyrzykowski, Ł. (EDP SCIENCES S A, 2008-04)
      We present results of the photometric campaign for planetary and low-luminosity object transits conducted by the OGLE survey in 2005 season (Campaign #5). About twenty most promising candidates discovered in these data ...
    • Robust high-contrast companion detection from interferometric observations. The CANDID algorithm and an ... 
      Gallenne, A.; Mérand, A.; Kervella, Pierre; Monnier, J. D.; Schaefer, G. H.; Baron, F.; Breitfelder, J.; Le Bouquin, J. B.; Roettenbacher, R. M.; Gieren, W.; Pietrzynski, G.; McAlister, H.; Brummelaar, T. ten; Sturmann, J.; Sturmann, L.; Turner, N.; Ridgway, S.; Kraus, S. (EDP Sciences, 2015)
      Context. Long-baseline interferometry is an important technique to spatially resolve binary or multiple systems in close orbits. By combining several telescopes together and spectrally dispersing the light, it is possible ...
    • The "666" collaboration on OGLE transits I. Accurate radius of the planets OGLE-TR-10b and OGLE-TR-56b with ... 
      Pont, F.; Moutou, C.; Gillón, M.; Udalski, A.; Bouchy, F.; Fernandes, J. M.; Gieren, W.; Mayor, M.; Mazeh, T.; Minniti, D.; Melo, C.; Naef, D.; Pietrzynski, Grzegorz; Queloz, D.; Ruiz González, María Teresa; Santos, N. C.; Udry, S. (2007)
      Transiting planets are essential to study the structure and evolution of extra-solar planets. For that purpose, it is important to measure precisely the radius of these planets. Here we report new high-accuracy photometry ...
    • A transiting planet among 23 new near-threshold candidates from the OGLE survey⋆ — OGLE-TR-182 
      Pont, F.; Tamuz, O.; Udalski, A.; Mazeh, T.; Bouchy, F.; Melo, C.; Naef, D.; Moutou, C.; Díaz, R.; Gieren, W.; Gillón, M.; Hoyer, Sergio; Kubiak, M.; Mayor, M.; Minniti, D.; Pietrzynski, G.; Queloz, D.; Ramírez, S.; Ruiz González, María Teresa; Santos, N. C.; Soszynski, I.; Szewczyk, O.; Szymanski, M. K.; Udry, S.; Ulaczyk, K.; Wyrzykowski, Ł.; Zoccali, Manuela (Springer Verlag, 2008)
      By re-processing the data of the second season of the OGLE survey for planetary transits and adding new mesurements on the same fields gathered in subsequent years with the OGLE telescope, we have identified 23 new transit ...
    • VISTA Variables in the Via Lactea (VVV): The public ESO near-IR variability survey of the Milky Way 
      Minniti, D.; Lucas, P. W.; Emerson, J. P.; Saito, R. K.; Hempel Leyton, Marie Claire; Pietrukowicz, P.; Ahumada, A. V.; Alonso, M. V.; Alonso-García, J.; Arias, José I.; Bandyopadhyay, R. M.; Barbá, R. H.; Barbuy, B.; Bedin, Luigi R.; Bica, E.; Borissova, J.; Bronfman Aguiló, Leonardo; Carraro, Giovanni; Catelan, M.; Clariá, J. J.; Cross, N.; Grijs, R. de; Dékány, I.; Drew, J. E.; Fariña, C.; Feinstein, C.; Fernández Lajús, E.; Gamen, R. C.; Geisle, D.; Gieren, W.; Goldman, B.; Gonzalez, O. A.; Gunthardt, G.; Gurovich, S.; Hambly, N. C.; Irwin, M. J.; Ivanov, V. D.; Jordán, A.; Kerins, E.; Kinemuchi, K.; Kurtev, R.; López Corredoira, M.; Maccarone, Thomas J.; Masetti, N.; Merlo, D.; Messineo, M.; Mirabel, I. F.; Monaco, L.; Morelli, L.; Padilla, N.; Palma, T.; Parisi, M. C.; Pignata Libralato, Giuliano; Rejkuba, M.; Roman-Lopes, A.; Sale, S. E.; Schreiber, M. R.; Schröder, A. C.; Smith, M.; Sodré Jr., L.; Soto, M.; Tamura, M.; Tappert, C.; Thompson, M. A.; Toledo, I.; Zoccali, M. (2009-12-11)
      We describe the public ESO near-IR variability survey (VVV) scanning the Milky Way bulge and an adjacent section of the mid-plane where star formation activity is high. The survey will take 1929 hours of observations with ...