activity
20242026
collaborators

6 papers

astro-ph.GA2026

A near-infrared stellar atlas of the Galactic plane from the VVVX survey

Javier Alonso-García, Maren Hempel, Roberto K. Saito +12

The VISTA Variables in the Via Lactea eXtended (VVVX) ESO public survey observed the Galactic plane and the outer Galactic bulge in the near-infrared to mitigate the effects of ext…

astro-ph.GA2025

Faint galaxies in the Zone of Avoidance revealed by JWST/NIRCam

J. L. Nilo-Castellón, M. V. Alonso, L. Baravalle +12

The Zone of Avoidance (ZoA) remains one of the last frontiers in constructing a comprehensive three-dimensional map of the Universe. Galactic extinction, stellar crowding, and conf…

astro-ph.SR2025

Near-infrared photometry of the central stars of planetary nebulae with the VVVX survey

Dante Minniti, Vasiliki Fragkou, Javier Alonso-García +2

Achieving accurate photometric characterizations of central stars of planetary nebulae (CSPNe) toward the galactic plane is significantly hindered by the high levels of interstella…

astro-ph.SR2025

The Gaia parallax discrepancy for the cluster Pismis 19, and separating Scutis from Cepheids

Daniel Majaess, Charles J. Bonatto, David G. Turner +10

Pre-Gaia distances for the open cluster Pismis 19 disagree with Gaia parallaxes. A 2MASS red clump distance was therefore established for Pismis 19 ( kpc), whic…

astro-ph.GA2025

VIRAC2: NIR Astrometry and Time Series Photometry for 500M+ Stars from the VVV and VVVX Surveys

Leigh C. Smith, Philip W. Lucas, Sergey E. Koposov +11

We present VIRAC2, a catalogue of positions, proper motions, parallaxes and , , , , and near-infrared photometric time series of 545 346 537 unique stars. The cat…

astro-ph.SR2024

The Valuable Long-period Cluster Cepheid KQ Scorpii and other Calibration Candidates

Daniel Majaess, David G. Turner, Dante Minniti +2

The classical Cepheid KQ Sco is a valuable anchor for the distance scale because of its long pulsation period () and evidence implying membership in the open cluster…