ESO Archive news

First data release of the X-SHOOTER survey of low-ionization structures in Planetary Nebulae

The goal of the observing programme 0113.C-2186(A), PI A. Stavros, is to better understand the Low-Ionization Structures (LISs) commonly found in Planetary Nebulae (PNe). This project uses X-SHOOTER to obtain the first UV-to-NIR spectra from a sample of 12 LISs with different shapes and types in 9 PNe with a variety of morphologies, ages and stellar parameters.

Observations were carrie ...

Release of the UVES spectra of field stars observed under the ESO Programme 112.25ES

This data release provides FLAMES/UVES spectra observed as part of the ESO programme 112.25ES.001 (PI: P. Kervella) with the main scientific goal of estimating interstellar extinction of 16 Galactic Cepheid variable stars. For this purpose, neighbouring field stars of the Cepheids were observed, queried from the Gaia Data Release 3 catalog, with the FLAMES multi-object spectrograph. The instrument ...

Release of SPHERE data indicating the presence of a companion for Betelgeuse

Betelgeuse is the most studied Red Super Giant. In 2024, through a reinterpretation of its long secondary period (LSP), a close orbiting stellar companion was suggested to exist, with a maximum elongation in December 2024. The goal was to search for this secondary component.

Observations were taken under programme 114.28H9 in extreme adaptive optics direct imaging with the Very Large Telescope SP ...

INSPIRING DR1

The first Phase 3 data release from the INSPIRING ESO Large Programme (ID: 1103.D-0797) is now available through the ESO Science Archive. This release provides fully reduced and calibrated VLTI/PIONIER observations obtained in the GRISM_H mode for eight post-AGB binary systems. The INSPIRING programme uses VLTI observations to study the inner rims of dusty circumbinary discs around post-AGB binaries. ...

ESO Archive: Upcoming system changes could impact your data access

As part of our continued efforts to improve the ESO Science Archive, we are upgrading the technologies we use. In doing so, the ESO Archive Request Handler (accessible via https://dataportal.eso.org/rh/requests/<userid>/<request_id>) must be decommissioned after a 1-million-requests milestone and 15 years of service. This will happen in the next few weeks but not before September 2026. This upgrade may impact the ways in which users download data from the Archiv ...

First public release of the ELT Guide Star Catalogue version 1.0 (ELT-GSC1.0)

The ELT-GSC1.0 is the first public release of the all-sky reference catalogue that will support guiding and adaptive-optics (AO) operations of ESO's Extremely Large Telescope (ELT) and its first-generation instruments, including MICADO and the MORFEO multi-conjugate AO module.

It is built directly on the JWST Guide Star Catalogue version 3.1 (GSC3.1), kindly made fully available to ESO by the Space Telescope Science Institute (STScI). GSC3.1 became the operational catalogue for th ...

Release of Deep MUSE Mosaic of NGC 1427A in the Fornax Cluster

This new data release provides a deep VLT/MUSE integral-field spectroscopic mosaic of the dwarf irregular galaxy NGC 1427A in the Fornax Cluster. The release consists of a reduced and calibrated MUSE data cube covering the wavelength range 470–935 nm together with an associated white-light image. The dataset combines 67 observations obtained between 2015 and 2023 under ESO programmes 094.B-0612(A), 110.23VM.001, and 111.24R5.001, for a total exposure time of 44.7 ks.

NGC 1427A i ...

Public release: Mosaicking M33 with MUSE

This is the public release of VLT/MUSE integral field spectroscopy observations of a 3'x8' mosaic along the southern major axis of the Local Group spiral galaxy M33, obtained under ESO Programme 109.22XS.001 (PI: G. Cresci). The observations were carried out in seeing-limited wide-field mode (WFM), covering the nominal wavelength range 4750 and 9350 Å .

The final mosaic comprises 24 pointings, corresponding to a total sky coverage of ~24 arcmin² (~1.43 kpc² at the ...

New data release of GRB180728A_SN2018fip

A new spectroscopic dataset of the gamma-ray burst (GRB) 180728A and its associated supernova SN 2018fip is now publicly available through the ESO Science Archive Facility.
The release comprises 13 epochs of observations obtained with the X-SHOOTER instrument at ESO’s Very Large Telescope (VLT), covering the evolution of the GRB afterglow and the emergence of the associated supernova. The dataset provides a detailed time series that enables studies of the transition from afterglow-do ...

Third Release of VST-OMEGACAM Imaging Products from the Collaboration with INAF

The VLT Survey Telescope (VST) at Paranal is now owned and operated by INAF, which is responsible for processing the data and releasing them via the ESO Archive.
The imaging data included in the current DR3 were obtained using the wide-field camera OmegaCAM with the g, r, i, and z filters and belong to the following projects:

"Stellar Explosions and their Evolution In Nearby Galaxies" (SEEING, PROG_ID: 112. ...

SPHERE data now available for P95 to P109 (April 2015 - September 2022)

The second release of SPHER E (Spectro-Polarimetric High-contrast Exoplanet REsearch instrument) data processed by the High-Contrast Data Centre (HC-DC) is now available in the ESO Science Archive Facility. SPHERE is designed fo ...

Second and final data release from the Large Programme SUPER

We are pleased to announce the second and final Phase3 data release of the Large Programme SUPER - SINFONI Survey for Unveiling the Physics and the Effect of Radiative feedback, programme id 196.A-0377, PI V. Mainieri. It uses SINFONI in Seeing-Enhancer mode to study Active Galactic Nuclei at z=2-2.5. The AO assisted observations r ...

First Release of LEWIS: MUSE Integral-Field Spectroscopic Survey of Ultra-Diffuse Galaxies in the Hydra I Cluster

This data release presents the first public data products (DR1) from Looking into the faintEst WIth MUSE (LEWIS), an ESO Large Programme investigating extreme low-surface-brightness galaxies in the Hydra I cluster using the Multi Unit Spectroscopic Explorer (MUSE) on the ESO Very Large Telescope. The observations were obtained in service mode between December 2021 and March 2025 under ESO programme 108.222P ...

Final data release of the VISTA survey of the Magellanic Cloud system (VMC)

The ESO Public Survey project VMC, ESO program 179.B-2003, PI M. R. Cioni, targets the Magellanic Cloud system in three filters: Y, J and Ks. The main goals are the determination of the spatially resolved star formation history and study the three-dimensional geometry of the system. The sensitivity of the data is designed to reach sources below the oldest main-sequence turn off point of the stellar population and the ...

Fifth and final data release of the VST-ATLAS Public Survey

The data released in DR5 are the final VLT Survey Telescope (VST) ATLAS stacked images and associated source lists taken from observations by VST from October 2017 to the end of the survey in January 2021 under ESO program ID 177.A-3011. These new data mainly comprise the ATLAS NGC extension at Dec<-20 deg. DR5 presents new and updated CASU (Cambridge Astronomical Survey Unit) images and source lists and also a full re-release of multi-band catalogue data from the Wid ...

Release of Continuum, CO, and Water Vapour Maps of the Orion Nebula — First Millimetre Spectral Imaging with APEX/CONCERTO

This data release presents the first millimetre spectroscopic imaging of the Orion Nebula obtained with the CONCERTO instrument on the APEX telescope. The observations were carried out on 24 August 2022 under ESO programme 0110.A-4194 (SEDIGISM (Structure, Excitation and Dynamics of the Inner Galactic Interstellar Medium) survey, a large spectroscopic programme mapping molecular gas across the inner Milky Way. The survey was conducted with the APEX 12-m telescope between 2013 and 201 ...

Issue on reduced NIRPS data between April and July 2025

NIRPS data for observations between 2025-04-01 12:00 and 2025-07-24 12:00, reduced with the pipeline version 3.2.6, have been affected by a technical issue impacting the accuracy of the radial velocity. For science cases requiring a precision better than 10 m/s, those data should not be used. We strongly advise (re-) downloading the updated Phase 3 data, which have been reprocessed with the pipeline version 3.2.7 (refer to the PROCSOFT FITS keyword).

Also, please beware tha ...

Release of “The MUSE View of the Sculptor” Programme

This data release presents a wide-field MUSE mosaic of the nearby starburst galaxy NGC 253 (the Sculptor Galaxy), covering its entire star-forming disc. The mosaic combines 103 individual MUSE pointings in Wide Field Mode, spanning 20 × 5 arcmin² and totaling approximately 25 hours of on-source exposure. Most of the observations (101 pointings) were obtained without adaptive optics (AO) using short exposures (~850 s), while the two ...