Speckle measurements of binaries at the OAGH

In this paper, we present the first multiband speckle interferometric measurements of binary stars performed using the 2.1m telescope of the Observatorio Astrofisico Guillermo Haro, Cananea, Sonora, Mexico. We describe here FICCO: Fast Imaging Camera for Cananea Observatory, a new instrument developed to perform speckle observations from the Northern Hemisphere. We tested this new instrument with objects from the Washington Double Star Catalog, that were observed during three runs allocated in 2019. We report 480 astrometric measurements of 138 pairs, with angular separations ranging from 0.06 to 5.76arcsec, including 347 measurements with separations smaller than 1arcsec. We estimated a mean error in separation of 14mas, 1.6{deg} in position angle, and 0.45mag for the magnitude difference. We confirmed 12 double stars discovered by Hipparcos. Finally, we present a correction to four previously published orbital solutions of visual binaries.

Cone search capability for table J/MNRAS/495/806/table2 (Astrometric ephemeris and residuals for calibration stars)

Cone search capability for table J/MNRAS/495/806/table3 (Multiband astrometry of known pairs observed with the 2.1m telescope)

Cone search capability for table J/MNRAS/495/806/table4 (Orbital elements)

Identifier
Source https://dc.g-vo.org/rr/q/lp/custom/CDS.VizieR/J/MNRAS/495/806
Related Identifier https://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/495/806
Related Identifier http://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/495/806
Metadata Access http://dc.g-vo.org/rr/q/pmh/pubreg.xml?verb=GetRecord&metadataPrefix=oai_b2find&identifier=ivo://CDS.VizieR/J/MNRAS/495/806
Provenance
Creator Guerrero C.A.; Rosales-Ortega F.F.; Escobedo G.; Martinez J.; Castillo E.,Garcia-Flores P.; Nieto-Suarez M.A.
Publisher CDS
Publication Year 2023
Rights https://cds.unistra.fr/vizier-org/licences_vizier.html
OpenAccess true
Contact CDS support team <cds-question(at)unistra.fr>
Representation
Resource Type Dataset; AstroObjects
Discipline Astrophysical Processes; Astrophysics and Astronomy; Galactic and extragalactic Astronomy; Natural Sciences; Observational Astronomy; Physics; Stellar Astronomy