20–21 September 2016, ESO Headquarters, Garching, Germany

ESO is considering building an adaptive optics (AO) instrument to make best use of the Adaptive Optics Facility (AOF) which is being commissioned during the coming years. The first AO Community Days are an opportunity to discuss the science cases of future AO instrumentation at ESO with a goal of developing the case for a future VLT instrument to become operational before 2025.

The MUSE processed data cubes downloaded from the ESO Science Archive Facility (see announcement) are sky subtracted but may still include residuals of sky emission lines redward of λ > 7000Å. These residuals can be further reduced using a dedicated ESO Reflex interactive workflow, to be applied directly to the MUSE science data products.

All spectra obtained with the Multi-Unit Spectroscopic Explorer (MUSE) integral field unit, in the wide field mode, from November 2014 to May 2015 are now published via the ESO Science Archive as reduced data. The MUSE science data cubes have their instrumental signature removed, and are astrometrically calibrated, sky-subtracted, wavelength and flux calibrated, using the MUSE pipeline, version muse-1.4 and higher.

The 2015 ESO Annual Report is now available, as full sized or small PDF. The Annual Report describes some science highlights from 2015 and provides a summary of last year's activities covering all aspects of the Organisation, including ALMA and the E-ELT.

The planning for the near future of the VLT instrumentation was discussed at the Scientific Technical Committee (STC) meeting in April 2016. With the return of CRIRES+ currently planned for the first quarter of 2018, a VLT Nasmyth focus needs to be freed. ESO has investigated the available options, which essentially come down to FLAMES, UVES and VIMOS.

As announced in the Call for Proposals for Period 98, no science observations on VLT UT4 are foreseen from early October to late December 2016. This is due to the extensive installation and commissioning activities of the Deformable Secondary Mirror (DSM), a key component of the Adaptive Optics Facility (AOF).

The upgraded version of the ArTéMiS instrument was successfully installed at APEX between 25 May and 1 June 2016. The bolometer camera can now observe simultaneously at 350μm and 450μm. Despite mediocre weather conditions, with a precipitable water vapour around 1.5mm, ArTéMiS successfully obtained first light images on the molecular cloud Sgr B2 near the Galactic Centre. The commissioning of the instrument will continue with the aim to offer the dual band capabilities in the Period 99 Call for Proposals (observing Apr.–Sep. 2017).

The European Extremely Large Telescope (E-ELT) is the flagship ESO Programme to build the world's largest optical/infrared telescope. The construction programme is now well underway with planned first light in 2024 and we felt it important to share with the scientific community the progress and achievements of the Programme.
Therefore, starting from this issue of the ESO Science Newsletter we will provide regular updates on the status of the Programme and important news regarding the E-ELT.

This release provides reduced K_s-band mosaics of the Hubble Frontier Fields obtained with HAWK-I at VLT UT4. The first two fields, Abell 2744 and MACS-0416, were observed with HAWK-I in Period 92 and the second two fields, Abell S1063 and Abell 370, in Period 95 (PI: Gabriel Brammer).

A recent study by Sterzik et al. 2015 (Messenger article) has revealed that the number of ESO observing programmes not leading to refereed publications is significant, exceeding 50%. This return rate applies also to highly ranked, fully completed programmes. Although this fraction is comparable to those measured at other large ground-based astronomical facilities, it is very important for ESO to identify the underlying reasons, in order to investigate possible avenues to increase the scientific return of its facilities.