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

Call for Letters of Intent for 4MOST Community surveys

Published: 26 Nov 2019

ESO issues a Call for Letters of Intent for Public Spectroscopic Survey with 4MOST, which is a state-of-the-art, high-multiplex, fibre-fed, optical spectroscopic survey facility currently under construction for ESO’s 4-metre VISTA telescope. During the first 5 years of operations 4MOST will be used to execute a comprehensive, integrated programme of both Galactic and extragalactic Public Surveys. The guaranteed time for the instrument consortium will be 70%, with the raw data being released immediately as with ESO Public Surveys. The GTO surveys have been presented at the 4MOST workshop and in a dedicated issue of the ESO Messenger (March 2019).

Period 104: Change in UT Instrument Distributions at end of Period

Published: 25 Nov 2019

In order to balance the oversubscription rates between UTs, ESO will change the distribution of instruments on the UTs at the end of Period 104 relative to the one announced in the Call for Proposals. This affects X-shooter and VISIR in particular.

Pre-announcement of Call for GRA4MAT Science Verification Proposals

Published: 23 Nov 2019

GRA4MAT is a special mode of MATISSE where GRAVITY is used as an external fringe tracker. GRA4MAT enables longer exposures in MATISSE, and improves this instrument in two ways: a much wider spectral range can be observed at once in the highest spectral resolution modes and improved sensitivity by about 2 magnitudes compared to the current offering, under certain conditions. This mode will be offered for Science Verification in April 2020, with a Call for Proposals published in January 2020, pending final commissioning and estimation of the performance gains. 

Workshop: GALSPEC2019 Postponed

Published: 22 Nov 2019

ESO, Vitacura, Santiago, Chile, 5–9 October 2020 

VIMOS, the VIsible Multi-Object Spectrograph, was decommissioned in March 2018 after 15 years of operations during which it amassed over 9700 hours of science data and marked the completion of two Public Spectroscopic Surveys: VANDELS and LEGA-C. To commemorate this milestone, GALSPEC was organised to  review past and current spectroscopic surveys on galaxy evolution (both with ESO and non-ESO instruments), as well as to explore future surveys that will be soon enabled by new MOS and IFU facilities. The conference was originally planned for 2019 but recent developments have led to it being postponed.

Now In: Results of the 2019 Paranal Service Mode User Satisfaction Survey

Published: 20 Nov 2019

The User Support Department (USD) extends its thanks to all those Principal Investigators and their Phase 2 delegates who filled in this year's online Paranal Service Mode User Satisfaction Survey. A total of 154 responses were received from our targeted campaign.  As in the past, where possible, we have contacted those respondents who provided detailed comments.  A summary report based on this latest User Satisfaction Survey is now available

The Messenger

The Messenger 177 is now available. Highlights include:

You can subscribe to the hardcopy of The Messenger or browse the complete archive of issues.


The ESO Science Newsletter

The November 2019 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.