Table · dataset · 2025
EROS light curve data base
Listed in IVOA Registry (Virtual Observatory)
The project called Experience de Recherche d'Objets Sombres (EROS) carried out photometric surveys of dense stellar fields toward the Magellanic Clouds (LMC and SMC), the Galactic bulge and Galactic spiral arms in the period 1990-2003.
Description
The main goal of the experiment was to search for the Galactic dark matter in the form of massive compact objects (machos) through the gravitational microlensing effect. The historical record of the flux variations in the monitored stars by EROS-2 will be a unique asset for time-domain astronomy and to complement current and future searches of transient sources.
We describe the set of light curves that was obtained with the EROS-2 program from 1996 to 2003, when more than 86 million stars were monitored. The set is publicly released through the Centre de Donnees de Strasbourg (CDS). This dataset includes 28.7 and 4.0 million light curves in the LMC and SMC, 42.9 million light curves in the Galactic bulge, and 10.4 million light curves toward the Galactic spiral arms and has several hundred measurements for each object.
Read the rest (1 more)
The data from EROS-1 are also being released. The object catalog, light curves, and images are accessible through the CDS portal. This is useful for determining the past behavior of newly discovered variable objects.
Links
Where it is published
- Reference page cdsarc.cds.unistra.fr/viz-bin/cat/II/390 ↗
landing page · from IVOA Registry
Documentation and papers
- ADS 2026A&A...706A.189A ui.adsabs.harvard.edu/abs/2026A%26A...706A.189A ↗
publication · from IVOA Registry
Catalogue records · 2
- VOResource record dc.g-vo.org/oai.xml?verb=GetRecord&metadataPrefix=ivo_vor&identifier=ivo%3… ↗
metadata API · from IVOA Registry
- Registry record (GAVO) dc.g-vo.org/I/cds.vizier/ii/390 ↗
catalogue entry · from IVOA Registry
Topics
- From keywords
- Astronomy & Astrophysics
- Inferred from text
- Astronomical sciences 73% · Image 65%
Provenance · 1 source records, 9 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| IVOA Registry (Virtual Observatory) | ivo://cds.vizier/ii/390 | 11 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · IVOA Registry | connector:ivoa_registry@1.0.0 | |
| concepts[field].anzsrc:group:5101 | enrichment · IVOA Registry | taxonomy-embedding@1.1.0 | title+keywords+description (73%) |
| concepts[field].local:field:astronomy | mapping · IVOA Registry | connector:ivoa_registry@1.0.0 | |
| concepts[modality].local:modality:image | enrichment · IVOA Registry | keyword-concept-rules@1.0.0 | title+description (65%) |
| description | source · IVOA Registry | connector:ivoa_registry@1.0.0 | rr.resource.res_description |
| license_text | source · IVOA Registry | connector:ivoa_registry@1.0.0 | |
| publication_date | source · IVOA Registry | connector:ivoa_registry@1.0.0 | |
| title | source · IVOA Registry | connector:ivoa_registry@1.0.0 | rr.resource.res_title |
| updated_date | source · IVOA Registry | connector:ivoa_registry@1.0.0 |