Johan H. Knapen

Research Professor

Instituto de Astrofísica de Andalucía

Spain

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About

Johan H. Knapen is a Research Professor at the Instituto de Astrofísica de Canarias in Spain. His research focuses on a range of topics in astrophysics, including the study of extragalactic globular clusters, AGN optical variability, and star formation histories of galaxies. He has contributed to recent articles exploring gas flows in Seyfert galaxies and constraints on nuclear star clusters in nucleated galaxies.

Articles (20)

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2025

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2020

Collaborators (11)

Dimitri Gadotti

Assistant Professor

Durham University Department of Physics

UNITED KINGDOM

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Sébastien Comerón

Universidad de la Laguna

SPAIN

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Nicole St-Louis

Professeure titulaire

Université de Montréal

CANADA

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Armando Gil de Paz

Associate Professor

Universidad Complutense de Madrid

SPAIN

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Soeren Larsen

Associate professor

Radboud University

NETHERLANDS

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Roberto Baena Gallé

Professor

UNIR

SPAIN

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Bililign Dullo

Assistant Professor of Astronomy

Embry-Riddle Aeronautical University

UNITED STATES

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Antonio La Marca

University of Groningen

NETHERLANDS

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Gabriele Mainetti

FRANCE

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Marc Huertas-Company

Universidad de la Laguna

SPAIN

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Anastasio Diaz-Sanchez

Universidad Politécnica de Cartagena

SPAIN

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Johan H. Knapen

Research Interests

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Articles (20)

Euclid preparation: LVIII. Detecting extragalactic globular clusters in the Euclid survey

Testing disc reprocessing models for AGN optical variability by comparison of X-ray and optical power spectra of NGC 4395

LeMMINGs. Multiwavelength constraints on the co-existence of nuclear star clusters and AGN in nucleated galaxies

Gas flows in the central region of the Seyfert galaxy NGC 4593 with MUSE

Deriving the star formation histories of galaxies from spectra with simulation-based inference

Euclid preparation

Gas-phase metallicity for the Seyfert galaxy NGC 7130

Constraining the top-light initial mass function in the extended ultraviolet disk of M 83

Detection of an intranight optical hard lag with colour variability in blazar PKS 0735+178

Bar properties as a function of wavelength: a local baseline with S4G for high-redshift studies

Capturing the Physics of MaNGA Galaxies with Self-supervised Machine Learning

The complex multi-component outflow of the Seyfert galaxy NGC 7130 (Corrigendum)

Ultramassive Black Holes in the Most Massive Galaxies: M BH–σ versus M BH–R b

The complex multi-component outflow of the Seyfert galaxy NGC 7130

An extensive spectroscopic time series of three Wolf–Rayet stars – II. A search for wind asymmetries in the dust-forming WC7 binary WR137

Extended Point-spread Functions for Deep Astronomical Imaging Surveys

The Black Hole Mass–Color Relations for Early- and Late-type Galaxies: Red and Blue Sequences

Are ultra-diffuse galaxies Milky Way-sized?

Distribution of star formation in galactic bars as seen with H α and stacked GALEX UV imaging

Gas fractions and depletion times in galaxies with different degrees of interaction

Collaborators (11)

Dimitri Gadotti

Sébastien Comerón

Nicole St-Louis

Armando Gil de Paz

Soeren Larsen

Roberto Baena Gallé

Bililign Dullo

Antonio La Marca

Gabriele Mainetti

Marc Huertas-Company

Anastasio Diaz-Sanchez

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