News and Updates

Third and final data release of the Large Early Galaxy Census (LEGA-C) Spectroscopic Public Survey published

Published: 30 Jul 2021

This is the third and final data release of the Large Early Galaxy Astrophysics Census (LEGA-C, ESO programmes 194.A-2005, 1100.A-0949). The LEGA-C public spectroscopic survey targeted the 1.5 deg2 of the COSMOS field (RA=10hr, Dec=+2 deg) with the VLT VIMOS multi-object spectrograph from December 2014 to May 2018.

This data release contains the science products for the full survey, doubling the sample size with respect to the second data release of 2018. It consists of 4081 spectra of 3741 unique galaxies in the redshift range 0.6 < z < 1.0, with typical continuum S/N ≃ 17, wavelength coverage 6000-9000 Angstrom and spectral resolution of R~3500. The science data products are fully reduced with a custom-built pipeline. In addition to the 1D spectra, the data release contains a catalog with spectroscopic redshifts, emission line fluxes, Lick/IDS indices, spatially integrated stellar and gas velocity RMSs (line widths). The catalogue also provides additional structural parameters measured from HST images and dynamical mass measurements. More information is available in the accompanying release documentation.

All data are publicly accessible from the Science Portal or programmatically. In addition, the catalog can be browsed via the Catalogue Facility or TAP.


Third release of the PESSTO multi-epoch catalogue

Published: 28 Jul 2021

A new version of the PESSTO Multi-Epoch Photometric Catalogue provides photometric lightcurve coverage for the Public European Southern Observatory Spectroscopic Survey of Transient Objects (PESSTO) targets for which follow-up lightcurves have been completed.This catalogue complements and completes the DR4 release announced in March 2021.

Photometric lightcurves for a total of 95 objects are now provided, 65 more than in the previous release (the lightcurves of 2 previously released transients have been removed from the catalogue as they do not qualify as PESSTO key-science targets).

This PESSTO public survey data release (DR4.1) is accompanied by a comprehensive description of the lightcurve catalogue.

Data are available via the ESO Catalogue Facility, or programmatically (the link brings your to a query example to find the lightcurve of SN2018ec), or via the Science Portal (specifically the catalogue preview gives you instantaneous access to the histograms of all the catalogues columns).


First Data Release of the PHANGS-MUSE large programme

Published: 16 Jul 2021

The PHANGS-MUSE project is an ESO Large Programme (PROGRAM ID: 1100.B-0651, PI: E. Schinnerer) which (including exposures from archival programs: 094.B-0321, 094.C-0623, 095.C-0473, 097.B-0640, 098.B-0551, 099.B-0242, 0100.B-0116) maps with MUSE 19 star forming spiral galaxies. This release provides combined mosaics of their central star-forming disk obtained by combining 5 to 15 MUSE pointings for each galaxy. In addition derived maps of emission line fluxes and kinematics as well as stellar kinematics are also included as ancillary files.


Third Data Release from the MATISSE/OCA-ESO Project (AMBRE): HARPS catalogue

Published: 06 Jul 2021

The AMBRE collaboration between the Observatoire de la Côte d'Azur (OCA, Nice) and ESO has the goal to analyse the wealth of stellar spectroscopic data in the ESO science archive using the MATISSE parametrisation algorithm to derive stellar atmospheric parameters (Recio-Blanco et al., 2006, MNRAS 370, 141, Worley et al. 2012, A&A 542A, 48, de Laverny et al. 2012, A&A 544A, 126, De Pascale (2014, A&A...570A..68).


Second Data Release from the MATISSE/OCA-ESO Project (AMBRE)

Published: 10 May 2021

The AMBRE collaboration between the Observatoire de la Côte d'Azur (OCA, Nice) and ESO has the goal to analyse the wealth of stellar spectroscopic data in the ESO science archive using the MATISSE parametrisation algorithm to derive stellar atmospheric parameters (Recio-Blanco et al., 2006, MNRAS 370, 141, Worley et al. 2012, A&A 542A, 48, de Laverny et al. 2012, A&A 544A, 126).


First data release from the GALACTICNUCLEUS survey

Published: 06 May 2021

The goal of GALACTICNUCLEUS survey, ESO Large Programme 195.B-0283, PI Rainer Schödel, is to build a single-epoch high angular resolution (0.2”) source catalogue of the Galactic Centre in the near infrared bands J,H,Ks.


Release of pipeline processed ESPRESSO 1D spectra products

Published: 29 Apr 2021

This data release provides access to reduced scientific data obtained with ESPRESSO. This instrument is a highly-stabilised fibre-fed echelle spectrograph that can be fed with light from either a single or up to four Unit Telescopes simultaneously. It is installed at the incoherent combined Coudé facility of the VLT. 


New spectra, images, and transient catalog of the PESSTO public survey (DR4)

Published: 24 Mar 2021

A new release of the Public ESO Spectroscopic Survey for Transient Objects (PESSTO) is available, including spectra and images from its ePESSTO extension, and the delivery of a new transient catalogue, globally covering 7 years of observations, from April 2012 to April 2019, for a total of 45GB.

This new release brings to 2323 the number of observed supernovae and optical transients, with calibrated 1D spectra for 2314 of them, doubling the number of objects previously published (1168 in the previous version).

Also doubled is the number of selected key targets (now 337) that were scheduled for follow-up time-series EFOSC2 optical spectroscopy, so to monitor the supernovae at the extremes of the known population e.g. the most luminous, the faintest, the fast declining, etc. The total number of spectra for the key targets is 3748, including the SOFI spectra taken for the brightest ones. SOFI imaging (broad-band JHKs) was nearly always taken when SOFI near infra-red spectra were taken.

Data are available via the ESO Science Portal or programmatically.

For more details on the observing strategy, the data reduction, calibration, and quality, along with a table of the selected key targets, and the description of the catalogue, please refer to the comprehensive release description.

Note: an updated version of the PESSTO multi-epoch photometry catalogue published in DR3.1 is expected by the summer.


First data released from the project 'INvestigating Stellar Population In RElics (INSPIRE)'

Published: 24 Mar 2021

The INSPIRE project is an ESO Large Programme (ID: 1104.B- 0370, PI: C. Spiniello) which uses X-Shooter (in UVB, VIS, NIR bands) to spectroscopically follow up 52 red ultra Compact Massive Galaxies selected from the KiDS VST ESO Public Survey. The goals of INSPIRE (Spiniello et al. 2021aSpiniello et al. 2021b) is to obtain the first catalogue of spectroscopically confirmed relics in the redshift range 0.1<z<0.5, bridge the gap between the three local confirmed relics and the high-z red nuggets, use the final statistic on confirmed relics to put a stringent constraint on the predictions from simulations on the initial burst of star formation in galaxies.


Second data release of the VISTA EXtension to Auxiliary Surveys (VEXAS)

Published: 18 Mar 2021

The VISTA EXtension to Auxiliary Surveys (VEXAS, Spiniello & Agnello, 2019, A&A, 630) project aims at building wide and spatially homogeneous  multi-wavelength catalogues (from X- ray to radio) providing reference magnitudes, colors and morphological information for a large number of scientific uses. Currently the VEXAS catalogue is the widest and deepest public optical-to-IR photometric and spectroscopic database in the Southern Hemisphere, comprising more than 90 million objects with reliable photometry measured in at least one of the VISTA infrared bands, two of the WISE bands and three optical bands.


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