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Table · dataset · 2026

INT monitoring of Local Grp. VII. IC 10 photometry

Listed in IVOA Registry (Virtual Observatory)

To identify long-period variable (LPV) stars in IC 10-the nearest starburst galaxy of the Local Group-we conducted an optical monitoring survey using the 2.5m Isaac Newton Telescope with the wide-field camera (WFC) in the i band and V band from 2015 to 2017.

Description

We created a photometric catalog for 53,579 stars within the area of CCD4 of WFC (~0.07deg^2^ corresponding to 13.5kpc^2^ at the distance of IC 10), of which we classified 536 and 380 stars as LPV candidates, mostly asymptotic giant branch (AGBs) stars and red supergiants, within CCD4 and two half-light radii of IC 10, respectively.

By comparing our output catalog to the catalogs from Pan-STARRS, Spitzer Space Telescope, Hubble Space Telescope (HST), and carbon stars from the Canada- France-Hawai'i Telescope survey, we determined the success of our detection method. We recovered ~73% of Spitzer's sources in our catalog and demonstrated that our survey successfully identified 43% of the variable stars found with Spitzer, and also retrieved 40% of the extremely dusty AGB stars among the Spitzer variables.

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In addition, we successfully identified ~70% of HST variables in our catalog. Furthermore, we found all the confirmed LPVs that Gaia DR3 detected in IC 10 among our identified LPVs. This paper is the first in a series on IC 10, presenting the variable star survey methodology and the photometric catalog, available to the public through the Centre de Donnees Astronomiques de Strasbourg.

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Documentation and papers

Catalogue records · 2

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Optical
Provenance · 1 source records, 8 field assertions
SourceKeyLast seenRaw
IVOA Registry (Virtual Observatory)ivo://cds.vizier/j/aj/170/5411 d agoJSON v1
FieldAssertionExtractorEvidence
access_levelsource · IVOA Registryconnector:ivoa_registry@1.0.0
concepts[field].local:field:astronomymapping · IVOA Registryconnector:ivoa_registry@1.0.0
concepts[modality].ivoa_waveband:opticalsource · IVOA Registryconnector:ivoa_registry@1.0.0
descriptionsource · IVOA Registryconnector:ivoa_registry@1.0.0rr.resource.res_description
license_textsource · IVOA Registryconnector:ivoa_registry@1.0.0
publication_datesource · IVOA Registryconnector:ivoa_registry@1.0.0
titlesource · IVOA Registryconnector:ivoa_registry@1.0.0rr.resource.res_title
updated_datesource · IVOA Registryconnector:ivoa_registry@1.0.0