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researcher

A. Koch-Hansen

27 papers hereh-index 6136 citations34 works total

Matching runs newest-first, so older work may not be attached to this profile yet.

author position
  • first author4
  • middle author19
  • last author2

Across the 25 of 27 papers where every author was matched, so the position is known.

fields
  • astro-ph.GA21
  • astro-ph.SR6

identity via Semantic Scholar / OpenAlex

activity
20202026
most citedPurveyors of fine halos. II. Chemodynamical association of halo stars with Milky Way globular clusters

33 citations · 158 across the 27 of their papers we have counts for

collaborators
Showing 2026Show all

3 papers · 1 filter

astro-ph.GA2026

Chemodynamical evidence of the HR 1614 moving group as a bar resonance

Andreas J. Koch-Hansen, Vladislav Gulaev, Dominik H. Plonka +4

Moving groups (MGs) are ensembles of disk stars that clump in velocity and action space. A multitude of explanations as to their origin has been attempted, from dissolved star clus…

astro-ph.SR2026

Chemical signatures of planetary systems in their host stars. Near-infrared spectroscopy of four planet-hosting wide binaries

Dongwook Lim, Sol Yun, Andreas J. Koch-Hansen +3

An important open question in exoplanet studies is whether planets leave detectable chemical fingerprints on their host stars. While several studies have suggested possible planeta…

astro-ph.GA2026

The Milky Way Bulge Extra-Tidal Star Survey: NGC 6569

Joanne Hughes, Andrea Kunder, Kevin Covey +25

We present spectroscopic evidence for tidal debris associated with the bulge globular cluster NGC 6569, based on medium-resolution (R ~ 11,000) Anglo-Australian Telescope spectra o…

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Not affiliated with arXiv. Researcher data from Semantic Scholar (ODC-BY) and OpenAlex.