activity
20212026
most citedThe VISTA Variables in the Vía Láctea eXtended (VVVX) ESO public survey: Completion of the observations and legacy

38 citations · 53 across the 12 of their papers we have counts for

collaborators

14 papers

astro-ph.SR2026

SPICY 30021: an embedded bona fide FUor with a mid-infrared precursor

Zhen Guo, Calum Morris, Vitor Fermiano +37

Unstable mass accretion in young stellar objects (YSOs) often leads to observable outbursts, which play a key role in stellar mass assembly during pre-main-sequence evolution. The…

astro-ph.SR2026

Unresolved triples in the open cluster NGC 2437 (M 46) confirmed by the KMOS VVVX-GalCen Spectroscopic Survey

D. Minniti, T. Palma, C. O. Obasi +31

Recent optical and near-IR photometric databases like Gaia data release 3 (DR3) and the VISTA Variables in the Vía Láctea eXtended (VVVX) ESO public survey allow the exploration of…

astro-ph.GA2026

A Newly Discovered VVVX Star Cluster Surfing the Galactic Disk

Elisa R. Garro, José G. Fernández-Trincado, Casmir O. Obasi +15

We report the discovery of Garro 04, a previously unidentified stellar cluster toward the Galactic disc, uncovered as part of the ESO/KMOS VVVX-GalCen Spectroscopic Survey. This ob…

astro-ph.SR2026

Unresolved triple systems in the aged open cluster Trumpler 19: Discovery, confirmation, and implications

D. Minniti, R. K. Saito, V. D. Ivanov +31

It is difficult to identify unresolved triple and higher-order systems beyond the solar vicinity. Star clusters yield controlled environments with known physical parameters, provid…

astro-ph.GA2026

Chemo-dynamical stratification of the Galactic disc using \emph{Gaia}-ESO open clusters

Casmir O. Obasi, M. Gómez, J. G. Fernández-Trincado +5

Understanding how the Milky Way disc assembled and evolved requires tracing the coupled evolution of stellar chemistry and orbital structure over time. Open clusters, as coeval ste…

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

Consensus based Algorithm for Nonparametric Detection of Star Clusters (CANDiSC)

C O Obasi, J G Fernandez Trincado, M Gomez +14

Context: The VISTA Variables in the Via Lactea (VVV) and its extension (VVVX) are near-infrared surveys mapping the Galactic bulge and adjacent disk. These data have enabled the di…

astro-ph.GA2025

The VVVX quest for satellites around the Circinus galaxy

L. D. Baravalle, A. L. O'Mill, M. V. Alonso +10

The Circinus galaxy is the nearest type-2 Seyfert galaxy, which is at a distance of 4.2 Mpc. Its environment is challenging to explore because it is located at low Galactic latitud…

astro-ph.GA2025★ 1 cited

Multi-Wavelength characterization of VVVX open clusters

C. O. Obasi, E. R. Garro, J. G. Fernández-Trincado +4

Context. Large-scale surveys across wavelengths, aided by machine learning, have improved the detection of old open clusters in high-extinction Milky Way regions. Aims. We aim to c…

astro-ph.GA2024

VVVX survey dusts off a new intermediate-age star cluster in the Milky Way disk

E. R. Garro, D. Minniti, J. Alonso-García +5

Our primary long-term objective is to seek out additional star clusters in the poorly studied regions of the MW. The aim of this pursuit is to finalize the MG's globular and open c…

astro-ph.GA2024★ 38 cited

The VISTA Variables in the Vía Láctea eXtended (VVVX) ESO public survey: Completion of the observations and legacy

R. K. Saito, M. Hempel, J. Alonso-García +143

The ESO public survey VISTA Variables in the Vía Láctea (VVV) surveyed the inner Galactic bulge and the adjacent southern Galactic disk from . Upon its conclusion, the c…

astro-ph.GA2024★ 5 cited

Searching for globular clusters in the inner halo of the Circinus galaxy

C. O. Obasi, M. Gomez, D. Minniti +3

In this study, we search for Globular Clusters (GCs) in the inner halo of the Circinus galaxy using a combination of observational data. Our dataset includes observations from the…

astro-ph.GA2022★ 9 cited

The globular cluster system of the nearest Seyfert II galaxy Circinus

C. Obasi, M. Gómez, D. Minniti +7

Context. The globular cluster (GC) system of Circinus galaxy has not been probed previously partly because of the location of the galaxy at - 3.8 Galactic latitude which su…

astro-ph.GA2021

Confirmation Of Two New Galactic Bulge Globular Clusters: FSR 19 and FSR 25

Casmir Obasi, Matias Gomez, Dante Minniti +1

Globular clusters (GCs) in the Milky Way (MW) bulge are very difficult to study because: i) they suffer from the severe crowding and galactic extinction; which are characteristic o…