HARPS News Updates

On this page, we list the main changes that affected the instrument and this web site. More News and Information can be found in the Science information pages

  • April 16, 2019: Pipeline problems affecting data taken with the Fabry Perot in the time frame 02-Feb-2019 to 16-Apr-2019. Due to a problem in the HARPS pipeline recipe the Fabry Perot calibration files after 01-Feb-2019 were not copied into the calibration database, and therefore the reference Fabry Perot spectrum was not updated. For this reason, all reduced science data taken with the Fabry Perot in the time frame 02-Feb-2019 to 16-Apr-2019 at 13:14 UT may exhibit a wrong radial velocity offset (header keyword: "HIERARCH ESO DRS DRIFT RV USED") up to 14 m/s. We are working in reprocessing the data and making the newly generated versions available via the ESO interfaces.
  • November 15, 2018: The Laser Frequency Comb is now offered for HARPS. Please contact the La Silla staff if you plan to use the LFC well before the start of your observations.
  • February 23, 2016: A Messenger article describing the May 2015 upgrade to the fiber-link is available in the December issue.
  • August 1, 2015: A letter has been sent to all HARPS Programme PI about the upgrade mentioned earlier and is also available here.
  • July 4, 2015: The HARPS polarimeter has now been realigned and the flux on both fibres is now within 30% (fibre B being less efficient).
  • June 3, 2015: After 12 years of operations a new fiber-link has been installed on HARPS. This includes the EGGS mode, and  the "sky fiber" of this mode is now available. Therefore starting from June 1st 2015 we expect a change in zero point in the determination of the radial velocities. We have collected the data to determine this offset as a function of stellar spectral type, and we are going to make the values available soon. We expect the effect of de-focussing and de-centering on the RV determination to be strongly reduced. The polarimetric mode of HARPS is not yet realigned with the new fibers and we measure a lower flux on fiber B by a factor 2 - 3. We intend to recover this as soon as possible. A full report will be made available to the community through these web pages and later through the ESO messenger.
  • October 21st, 2014: HARPS Pipeline Processed Data Available through Phase 3
  • April 6th, 2011: User Manual updated to include information on the use of the FP and a brief summary of the upgrade of the 3.6-m guiding system.
  • October 20th, 2010: New pipeline release: 3.5
  • March 2010 The commissioning data of the new spectro-polarimetric mode are released to the astronomical community. Link to this page to access them.
  • February 15th, 2010 A spectropolarimeter is now installed in HARPS. See the ESO announcement
  • October 19th, 2009 32 new extra-solar planets discovered with HARPS. Read the press release.
  • April 21st, 2009: Lightest exoplanet ever discovered, read the press release.
  • October 17th, 2008: New pipeline release: 3.4
  • August 22nd, 2008: New flat field lamp (with filters) installed. More uniform spectrum across the HARPS wavelength range.
  • August 20th, 2008: The EGGS system runs in single fiber mode only. The reference fiber is damaged. However, the main science mode of EGGS is unaffected. Read more.
  • June 16th, 2008: A system with three "super-Earth" planets has been detected by HARPS. The three planets have masses of 4.2, 6.9 and 9.2 the mass of the Earth. The RMS of the residuals to the fitted orbits is of only 0.85m/s in 5 years, including instrumental and stellar effects. ESO press release, Nature press release.
  • April 15th, 2008: The birthplace of the exoplanet-host star Iota Orologii has been identified thanks to HARPS observations: Press release.
  • May 1st, 2007: HARPS reduced data can be requested from the HARPS Advanced Data Products archive.
  • April 25th, 2007: HARPS discovers the first rocky planet (5 times the mass of the Earth) in the habitable zone.
    Read the ESO press release and the paper
  • December 08th, 2006: New pipeline release: 3.0.
  • May 17th, 2006: HARPS unveils an extrasolar planetary system with three Neptune-mass planets. Read the ESO press release
  • May 15th, 2006: New, "slow" readout mode available.
  • May 15th, 2006: New release of the User manual for P78
  • March 1st, 2006: The high efficiency fibre link (EGGS) has been included in the call for proposal for period 78.
  • August 8, 2004: Secondary mirror unit changed; system efficiency increased by up to 40%.
  • August, 2004: 14 Earth masses exoplanet discovered ! ESO press release (22-04), Paper
  • May, 2004: Iodine self calibration method not available.
  • December, 2003: First HARPS planet candidate (HD330075b): Announcement, Paper
  • October 1, 2003: Instrument offered to the community.
  • February 11, 2003: FIRST LIGHT! ESO Press Release (06/03)

Press Releases

HARPS in the general press