activity
19962026
most citedA geometric distance measurement to the Galactic Center black hole with 0.3% uncertainty

826 citations · 5.1k across the 61 of their papers we have counts for

collaborators

61 papers

astro-ph.GA2026

Kinematically cold and warm planetary nebulae samples, HII regions and supernovae remnants in the disc of the face-on spiral galaxy NGC 628 (M74) -- The Planetary Nebulae Spectrograph with the H arm

Magda Arnaboldi, Ortwin Gerhard, Surya Aniyan +14

We present the results for the galaxy NGC 628 observed with the Planetary Nebulae Spectrograph (PN.S) equipped with the H arm. With the third PN.S arm, the H arm, we measure…

astro-ph.GA2026★ 1 cited

Galactic Archaeology with the Subaru `Ōnohi`ula Prime Focus Spectrograph Strategic Program

Masashi Chiba, Rosemary F. G. Wyse, Evan N. Kirby +48

The recently commissioned Subaru `Ōnohi`ula Prime Focus Spectrograph (PFS) will obtain spectra from nearly 2,400 fibers that cover 1.24 square degrees. The 360 night Subaru Strateg…

astro-ph.GA2026★ 1 cited

Intracluster globular clusters as tracers of the mass assembly of the Hydra I galaxy cluster

Felipe S. Lohmann, Magda Arnaboldi, Michael Hilker +7

In galaxy clusters, hierarchical assembly predicts the formation of stellar substructures and intracluster light (ICL), a diffuse stellar component tracing the global cluster poten…

astro-ph.IM2026

Extragalactic Planetary Nebulae (xPNe). Chemical evolution and assembly histories of nearby galaxies using Oxygen and Argon abundances. From the local universe to cosmic dawn

Magda Arnaboldi, Ortwin Gerhard, Martin Roth +6

How galaxies formed and evolved in the expanding Universe is the main science goal of Near-Field Cosmology research. Studies of the properties of galaxies' resolved stars open a wi…

astro-ph.GA2026

Extragalactic Planetary Nebulae (xPNe). Determining Distances out to 100 Mpc and the Renaissance of the PN Luminosity Function Method

Magda Arnaboldi, Ortwin Gerhard, Martin Roth +9

The discrepancy of the Hubble parameter H0 as measured from the cosmic microwave background versus that found from traditional distance ladder measurements has produced considerabl…

astro-ph.GA2026

Extragalactic planetary nebulae -- tracers of kinematics and stellar populations out to 100 Mpc

Johanna Hartke, Magda Arnaboldi, Claudia Pulsoni +11

Extragalactic planetary nebulae (xPNe) in galaxies beyond the Local Universe serve as discrete tracers for studying the element abundances and kinematics of galaxies covering a wid…