Dr. rer. nat. Johanna Hartke - UTU Research Portal

Johanna Hartke
Dr. rer. nat.

- Collegium Researcher,
Finnish Centre for Astronomy with ESO (Independent units)

Turku Collegium for Science, Medicine and Technology

johanna.hartke@utu.fi

Office: 150

ORCID identifier: https://orcid.org/0000-0002-8745-689X

Personal webpage

Areas of expertise

Galaxy formation and evolution; Galaxy dynamics; Planetary nebulae; Integral-field spectroscopy; Adaptive optics

Research

I am interested in the formation, evolution, and dynamics of galaxies ranging from our own Milky Way to the most massive galaxies found at the centres of galaxy clusters. In my PhD research I used Planetary Nebulae (PNe) as kinematic tracers for the build-up of the extended halos of massive early-type galaxies and the interplay with the intra-cluster light. I am also a member of the LEWIS and INSPIRE collaborations that target ultra-diffuse and ultra-massive compact galaxies respectively, exploring the extremes of galaxy formation.

Teaching

I regularly give guest lectures in the following courses:

FFYS7101 Optical Systems Applications
TÄHT7056 Data Processing Techniques for Astronomy with ESO Instrumentation
TÄHT7053 Spectroscopic Diagnostics in Astrophysics
TÄHT7055 Observational Techniques Using the Nordic Optical Telescope

I have also taught in Observing Schools organised by the European Southern Observatory at La Silla Observatory and by the Opticon RadioNet Pilot NEON school at Asiago Observatory.

Publications

2 of 7

Planetary nebulae as tracers of stellar population properties: a pilot study with MUSEINSPIRE: INvestigating Stellar Population In RElics - VI. The low-mass end slope of the stellar initial mass function and chemical compositionMapping the low-surface brightness outskirts of galaxies with planetary nebulae as discrete tracers (2025)
- Monthly Notices of the Royal Astronomical Society
Ennis, Ana Inés; Hartke, Johanna; Bian, Fuyan; Pulsoni, Claudia; Spiniello, Chiara; Arnaboldi, Magda; de Propris, Roberto
(A1 Refereed original research article in a scientific journal)
Planetary nebulae populations in the haloes of nearby massive early-type galaxiesShapes of dark matter haloes with discrete globular cluster dynamics: The example of NGC 5128 (Centaurus A)2025
- Proceedings of the International Astronomical UnionAstronomy and Astrophysics
Planetary Nebulae: A Universal Toolbox in the Era of Precision Astrophysics Hartke, J.; Arnaboldi, M.; Gerhard, O.; Ennis, A.; Pulsoni, C.; Coccato, L.; Cortesi, A.; Freeman, K.; Kuijken, K.; Merrifield, M.; Napolitano, N.
(A4 Refereed article in a conference publication )
Survey of Planetary Nebulae in the Andromeda galaxy (M 31) (2025)
- Proceedings of the International Astronomical UnionMonthly Notices of the Royal Astronomical Society
Planetary Nebulae : A Universal Toolbox in the Era of Precision Astrophysics Bhattacharya, Souradeep; Arnaboldi, Magda; Gerhard, Ortwin; Caldwell, Nelson; Kobayashi, Chiaki; Hammer, Francois; Yang, Yanbin; Freeman, Kenneth C.; Hartke, Johanna; McConnachie, Alan
(A4 Refereed article in a conference publication )
The MUSE view of the Sculptor galaxy: Survey overview and the luminosity function of planetary nebulae (2025)
Congiu, E.; Scheuermann, F.; Kreckel, K.; Leroy, A.; Emsellem, E.; Belfiore, F.; Hartke, J.; Anand, G.; Egorov, O. V.; Groves, B.; Kravtsov, T.; Thilker, D.; Tovo, C.; Bigiel, F.; Blanc, G. A.; Bolatto, A. D.; Cronin, S. A.; Dale, D. A.; Mcclain, R.; Mendez-Delgado, J. E.; Oakes, E. K.; Klessen, R. S.; Schinnerer, E.; Williams, T. G.
(A1 Refereed original research article in a scientific journal)
Ultra-diffuse, ultra-different: observed versus simulated ultra-diffuse galaxies live in fundamentally different haloes (2025)
Gannon, Jonah S.; Di Cintio, Arianna; Forbes, Duncan A.; García-Bethencourt, Guacimara; Brodie, Jean P.; Libeskind, Noam; Couch, Warrick J.; Hartke, Johanna
(A1 Refereed original research article in a scientific journal)
INSPIRE: INvestigating Stellar Population In RElics – V. A catalogue of ultra-compact massive galaxies outside the local Universe and their degree of relicness (2024)
- Monthly Notices of the Royal Astronomical Society
Spiniello, Chiara; D'Ago, Giuseppe; Coccato, Lodovico; Hartke, Johanna; Tortora, Crescenzo; Ferré-Mateu, Anna; Pulsoni, Claudia; Cappellari, Michele; Maksymowicz-Maciata, M.; Arnaboldi, M.; Bevacqua, Davide; Gallazzi, Anna; Hunt, Leslie K.; La Barbera, F.; Martín-Navarro, I.; Napolitano, Nicola Rosario; Radovich, Mario; Saracco, Paolo; Scognamiglio, D.; Spavone, Marilena; Zibetti, Stefano
(A1 Refereed original research article in a scientific journal)
INSPIRE: INvestigating Stellar Population In RElics – VII. The local environment of ultra-compact massive galaxies (2024)
- Monthly Notices of the Royal Astronomical Society
Scognamiglio, Diana; Spiniello, Chiara; Radovich, Mario; Tortora, Crescenzo; Napolitano, Nicola R; Li, Rui; Maturi, Matteo; Maksymowicz-Maciata, Michalina; Cappellari, Michele; Arnaboldi, Magda; Bevacqua, Davide; Coccato, Lodovico; D’Ago, Giuseppe; Feng, Hai-Cheng; Ferré-Mateu, Anna; Hartke, Johanna; Martín-Navarro, Ignacio; Pulsoni, Claudia
(A1 Refereed original research article in a scientific journal)
(2024)
- Monthly Notices of the Royal Astronomical Society
Maksymowicz-Maciata, Michalina; Spiniello, Chiara; Martín-Navarro, Ignacio; Ferré-Mateu, Anna; Bevacqua, Davide; Cappellari, Michele; D'Ago, Giuseppe; Tortora, Crescenzo; Arnaboldi, Magda; Hartke, Johanna; Napolitano, Nicola R.; Saracco, Paolo; Scognamiglio, Diana
(A1 Refereed original research article in a scientific journal)
(2024) EAS2024 Hartke, Johanna
(Other publication)
(2024)
- Astronomy and Astrophysics
Veršič, T.; Rejkuba, M.; Arnaboldi, M.; Gerhard, O.; Pulsoni, C.; Valenzuela, L. M.; Hartke, J.; Watkins, L. L.; van de Ven, G.; Thater, S.
(A1 Refereed original research article in a scientific journal)