Science Users Information

These pages are aimed at ESO community astronomers and contain all the information required in order to prepare, execute, process and exploit observations with ESO facilities. They also provide information on the scientific activities taking place at ESO. Details can be accessed via the navigation menu.

ESO Science Announcements

First ERIS Imaging and IFU Data Become Public

Published: 18 Apr 2024

The  Enhanced Resolution Imager and Spectrograph (ERIS) is a general-use infrared integral field spectrograph and imager that utilises the adaptive optics on the VLT’s UT4. After one year of operation, the proprietary period for the first observations has expired. Both raw and fully processed science data are now publicly available for download via the ESO Archive. The processed data are organised into two data collections, ERIS-NIX and ERIS-SPIFFIER, which contain reduced scientific imaging products and 3D data cubes, respectively. 

European Interferometry Initiative Early Career Prize

Published: 03 Apr 2024

The European Interferometry Initiative (Eii) is an open association of institutes and laboratories willing to collaborate in exploiting and developing long-baseline optical interferometry in optical/infrared astronomy, with the VLT interferometer as its leading facility. To continuously promote excellence in the field, the European Interferometry Initiative is happy to invite nominations for the EII Early Career Prize. The newly created prize will be awarded every two years (even years starting from 2024) by the EII Scientific Council to a young scientist (within four years after their PhD) who distinguished themselves for using optical-infrared long-baseline interferometry.

GRAVITY+ at Higher Spectral Resolution: On-line Workshop, 12-13 September 2024

Published: 01 Apr 2024

GRAVITY has transformed optical interferometry thanks to its unprecedented sensitivity. GRAVITY+ will yet improve VLTI sensitivity by being able to observe targets as faint as K<22 mag. This will allow significant breakthroughs across astrophysical domains as different as AGNs, young stellar objects and exoplanets. Thanks to the sensitivity boost provided by GRAVITY+ this is the time to open VLTI to explore new fundamental physics by installing a new high-resolution grism for GRAVITY+. This workshop is aimed at the wider spectroscopic, and spectro-interferometric community to gather new ideas about how to maximise the scientific exploration of the new GRAVITY high resolution capabilities, and engage with the spectroscopic community with or without interferometric experience.

2024 Users Committee Meeting

Published: 01 Apr 2024

The Users Committee (UC) represents ESO's astronomical community at large and acts as an advisory body to the ESO Director General on matters related to the performance, scientific access, operation and user interfaces to the La Silla Paranal Observatory and ALMA. The annual meeting of the UC is scheduled on 25 and 26 April 2024. During the UC meeting updates from ESO and feedback from the user community are exchanged and openly discussed. Each year one topic is explored in more detail and this year the Special Topic session is dedicated to Large Programmes.

ESO Period 114 Proposal Submission Statistics

Published: 01 Apr 2024

The deadline for proposal submission for Period 114 (1 October 2024 - 31 March 2025) was 21 March 2024: 859 valid proposals were submitted, of which 29 are Large Programmes.  On the VLT, the most demanded ESO instrument was MUSE with a request of 407 nights, followed by ESPRESSO with 249 nights. Probably due to the increasing popularity of ESPRESSO, the pressure on UVES has now reduced to 193 nights. The demand on the still new instrument ERIS keeps increasing, and is now 159 nights. HARPS/NIRPS on the ESO 3.6-metre telescope was the most demanded instrument at La Silla, with a combined request of 239 nights. 

The Messenger

The Messenger 191 is now available. Highlights include:

  • Barcons, X.: Sixty Years of Engagement Between ESO and Chile: Past, Present and Future
  • Bacon, R., et al.: Scientific Highlights from Ten Years of the MUSE Collaboration
  • Romaniello, M. et al.: The ESO Science Archive Facility: Status, Impact, and Prospects

The ESO Science Newsletter

The April 2024 issue is now available.

The ESO Science Newsletter, mailed approximately once per month, presents the most recent announcements. Subscription is controlled through the Manage Profile link on the User Portal. Back issues (2013-) are archived.

Citing ESO data in research papers

Researchers are kindly asked to indicate the identifiers (programme IDs or Data DOIs) of the (new or archival) observations they used in their papers as explained in ESO’s data citation policy. This enables the telbib curators to cross-link research output to make data Findabie, Accessible, Interoperable, and Reusable as suggested by the FAIR Principles.  

Pitch Your Research to ESO COMM

Are you an author on an upcoming scientific study based on ESO data that could be relevant to journalists or the wider public? Or are you a Principal Investigator on ESO observations with potential to become stunning images? If so, please consider sending to ESO your paper and/or a preview of the image(s) obtained with ESO telescopes.