VVV Survey microlensing events in the Gal. Bulge

DOI

We search for microlensing events in the zero-latitude area of the Galactic Bulge using the VVV Survey near-IR data. We have discovered a total sample of N=630 events within an area covering 20.68deg^2^ between the years 2010 and 2015. In this paper, we describe the search and present the data for the final sample, including near-IR magnitudes, colors, and proper motions, as well as the standard microlensing parameters. We use the near-IR color-magnitude and color-color diagrams to select NRC=290 events with red-clump sources to analyze the extinction properties of the sample in the central region of the Galactic plane. The timescale distribution and its dependence in the longitude axis is presented. The mean timescale decreases as we approach the Galactic minor axis (b=0{deg}). Finally, we give examples of special microlensing events, such as binaries, short-timescale events, and events with a strong parallax effect.

Cone search capability for table J/ApJ/893/65/table2 (VVV Survey first quality microlensing events)

Cone search capability for table J/ApJ/893/65/table3 (VVV Survey second quality microlensing events)

Identifier
DOI http://doi.org/10.26093/cds/vizier.18930065
Source https://dc.g-vo.org/rr/q/lp/custom/CDS.VizieR/J/ApJ/893/65
Related Identifier https://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/893/65
Related Identifier http://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/893/65
Metadata Access http://dc.g-vo.org/rr/q/pmh/pubreg.xml?verb=GetRecord&metadataPrefix=oai_b2find&identifier=ivo://CDS.VizieR/J/ApJ/893/65
Provenance
Creator Navarro M.G.; Contreras Ramos R.; Minniti D.; Pullen J.,Capuzzo-Dolcetta R.; Lucas P.W.
Publisher CDS
Publication Year 2021
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