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THE OPTICAL GRAVITATIONAL LENSING EXPERIMENT

Telecope buildings

1.3m Warsaw Telescope - Las Campanas Observatory, Chile
(control building to the left)



Referencing OGLE

OGLE presents a lot of data on WWW, for unrestricted use by astronomical community. However, proper referencing of the data being used is required by good manners, as well as to avoid accusations of plagiarism. Note: a description of every catalog and every data set contains a reference to a paper which should be cited.

OGLE III in operation

Starting June 11, 2001, the Optical Gravitational Lensing Experiment entered its third phase, OGLE III, and resumed regular observations at the Las Campanas Observatory, Chile. Observations are collected with the new "second generation" CCD mosaic camera, commisioned in May 2001. The 8kMOSAIC camera consists of eight thin SITe 2048x4096 CCD chips (8192x8192 pixels of 0.26 arcsec/pixel) giving the total field of view equal to 35' x 35'. The readout time of the camera is 98 seconds with readout noise of 6-9 e (depending on chip) and the gain of 1.3 e/ADU.

Scientific Results of the OGLE Project

REAL TIME DATA ANALYSIS SYSTEMS

  • Real time microlensing detection system: EWS

    2008 Season Events - Now Available on Line !!!

    !!! Possible Microlensing in the SMC: OGLE-2008-SMC-001 !!!

    Sample Lens Lightcurve

    130 million stars regularly monitored in the Galactic Bulge,
    33 million stars in the Magellanic Clouds.
    More than 500 events detected during each Bulge season.

  • New Objects in the OGLE-III Sky (NOOS): Real Time Detection System of Transient Objects.

    NOOS Example Object

  • OGLE-III Monitoring of QSO 2237+0305 (Huchra's lens) (2001 - ....).



    LATEST SCIENTIFIC RESULTS
    (the newest come first)

  • Discovery of a Jupiter/Saturn Analog: OGLE-2006-BLG-109Lbc.

    OGLE-2006-BLG-109-OGLEOGLE-2006-BLG-109-ALL

    OGLE-2006-BLG-109 is a multiple-planet system discovered with gravitational microlensing. It consists of two planets with masses of ∼0.71 and ∼0.27 times the mass of Jupiter and orbital separations of ∼2.3 and ∼4.6 astronomical units orbiting a primary star of mass ∼0.50 solar masses at a distance of ∼1.5 kiloparsecs. OGLE-2006-BLG-109 system resembles a scaled version of our solar system in that the mass ratio, separation ratio, and equilibrium temperatures of the planets are similar to those of Jupiter and Saturn.

  • Discovery Paper: Gaudi, Bennett, Udalski et al., 2008, Science, 319, 927; astro-ph/0802.1920.

  • New (Seventh) Transiting OGLE Planet: Inflated Hot Jupiter OGLE-TR-211.


    OGLE-TR-211PHOGLE-TR-211RV

    Light and radial velocity curves of OGLE-TR-211. Light curve: black points - OGLE photometry, red dots - VLT photometry. Orbital period of OGLE-TR-211b is 3.6772 days, its mass 1.03 +/-0.20 M_Jup and radius 1.36 +0.18-0.09 R_Jup.

  • Discovery paper by Udalski, Pont, Naef et al.

  • Photometric data and finding charts.

  • New (Sixth) Transiting OGLE Planet: Hot Jupiter OGLE-TR-182.


    OGLE-TR-182

    Transit of OGLE-TR-182b. Black points - OGLE discovery photometry, red dots - VLT follow-up photometry.

  • Discovery paper by Pont, Tamuz, Udalski et al.

  • Photometric data and finding charts.

  • Period-Luminosity Relations of Variable Red Giant Stars.


  • Discovery of a "Super-Earth" Microlensing Planet of 13 Earth Masses: OGLE-2005-BLG-169Lb.

    OGLE-2005-BLG-169

  • Discovery Paper of the MicroFUN, OGLE and Robonet Collaborations: Gould, Udalski, An, Bennett et al., 2006, astro-ph/0603276.

  • Discovery of a Cool Planet of 5.5 Earth Masses. OGLE-2005-BLG-390.

    OGLE-2005-BLG-390

  • Discovery Paper of the PLANET, OGLE and MOA Collaborations: Beaulieu et al., 2006, Nature, 439, 437; astro-ph/0601563.

  • Miras and Semiregular Variables in the Large Magellanic Cloud.


  • A Jovian-Mass Planet in High Magnifiction Microlensing Event OGLE-2005-BLG-071.

    OGLE-2005-BLG-071

  • Discovery Paper (Udalski et al. 2005).

  • On-line Access to the OGLE Photometric Databases

  • Ellipsoidal Variability of Red Giants in the Large Magellanic Cloud.

  • New (Fifth) Transiting OGLE Planet: OGLE-TR-10.

  • Spectroscopic confirmation by Konacki, Torres, Sasselov and Jha.
  • Spectroscopy by Bouchy et al.

  • Planetary/Low Luminosity Object Transits from the 2003 OGLE-III Campaigns.

  • Search for Low-Mass Exoplanets by Gravitational Microlensing at High Magnification.

  • New Transiting OGLE Planet: OGLE-TR-111.

  • Spectroscopic confirmation by Pont et al.

  • Small Amplitude Variable Red Giants in the Magellanic Clouds.

  • WR20a - the Most Massive Binary System.

  • OGLE Photometry of WR20a: A.Z. Bonanos, K.Z. Stanek, A. Udalski, L. Wyrzykowski, K. Zebrun et al.
  • Spectroscopy of WR20a: G. Rauw et al.
  • CfA Press Release.
  • University of Liege Press Release (in French).

  • First Detection of an Extrasolar Planet with Microlensing: OGLE 2003-BLG-235/MOA 2003-BLG-53.

  • New Transiting Planets: OGLE-TR-113 and OGLE-TR-132.
  • Spectroscopy by Bouchy et al.
  • Independent spectroscopy of OGLE-TR-113 by Konacki et al.
  • New OGLE photometric ephemerides and photometric data.

  • OGLE-TR-56 - the first planetary system detected with the "transit" method.


    OGLE-TR-56



    Main OGLE Results

    Other Information

    Last updated: 26.11.2007