Jo Ann Egger

Employment

• European Space Research and Technology Centre Internal Research Fellow
  2025 - Present
• Universität Bern PhD student
  2021 - Present
• Universitat Bern

Education

Education history is unavailable.

Projects & Funding

Projects & funding information is unavailable.

Publications (53)

• Transit timing and starspot-induced transit depth variations in the ∼17 Myr old HIP 67522 system
  H. Chakraborty, M. Lendl, A. Nigioni

  +27 more

  • J.A. Egger
  • Jose Manuel Almenara
  • Matthew P. Battley
  • A. G. M. Pietrow
  • J. Venturini
  • +22 more
  Astronomy & Astrophysics 2026 DOI: 10.1051/0004-6361/202558142
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• Escape of water- and metal-enriched atmospheres from compact hot mini-Neptunes with CHAIN
  Astronomy & Astrophysics 2026 DOI: 10.1051/0004-6361/202557919
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• NGTS-39 b: a 58 d transiting warm Jupiter in an eccentric orbit
  Monthly Notices of the Royal Astronomical Society 2026 DOI: 10.1093/mnras/stag1271
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• An ultra-short-period super-Earth and a sub-Neptune orbiting the K dwarf TOI-4311
  Monthly Notices of the Royal Astronomical Society 2026 DOI: 10.1093/mnras/stag952
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• Gas-depleted planet formation occurred in the four-planet system around the red dwarf LHS 1903
  Science 2026 DOI: 10.1126/science.adl2348
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• Constraining small planet compositions for future missions
  Larissa Palethorpe, Annelies Mortier, J. A. Egger +14 more
  Monthly Notices of the Royal Astronomical Society 2026 DOI: 10.1093/mnras/stag520
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• Giant Outer Transiting Exoplanet Mass (GOT’EM) survey
  Astronomy & Astrophysics 2026 DOI: 10.1051/0004-6361/202556700
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• Discovery and characterization of two exoplanets orbiting the metal-poor, solar-type star TOI-5788 with TESS, CHEOPS, and HARPS-N
  Monthly Notices of the Royal Astronomical Society 2026 DOI: 10.1093/mnras/stag158
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• Improved characterization of the TOI-2141 system: A dense sub-Neptune with non-transiting inner and outer companions
  Astronomy & Astrophysics 2025 DOI: 10.1051/0004-6361/202556515
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• HARPS-N, TESS, and CHEOPS discover a transiting sub-Neptune and two outer companions around the bright solar analogue HD 85426
  Monthly Notices of the Royal Astronomical Society 2025 DOI: 10.1093/mnras/staf1934
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• An ultra-short period super-Earth and sub-Neptune spanning the Radius Valley orbiting the kinematic thick disc star TOI-2345
  Monthly Notices of the Royal Astronomical Society 2025 DOI: 10.1093/mnras/staf1806
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• The mass of the exo-Venus Gliese 12 b, as revealed by HARPS-N, ESPRESSO, and CARMENES
  Monthly Notices of the Royal Astronomical Society 2025 DOI: 10.1093/mnras/staf1703
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• Discovery of a multi-planet system orbiting the aged Sun-like star HD 224018
  Astronomy & Astrophysics 2025 DOI: 10.1051/0004-6361/202555770
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• Transit timing variations in HIP 41378: CHEOPS and TESS confirm a non-transiting sixth planet in the system
  Astronomy & Astrophysics 2025 DOI: 10.1051/0004-6361/202555253
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• ATREIDES
  Astronomy & Astrophysics 2025 DOI: 10.1051/0004-6361/202554856
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• The CHEOPS view of HD 95338b: Refined transit parameters, and a search for exomoons
  Astronomy & Astrophysics 2025 DOI: 10.1051/0004-6361/202554040
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• The KELT-7b atmospheric thermal-inversion conundrum revisited with CHEOPS, TESS, and additional data
  Astronomy & Astrophysics 2025 DOI: 10.1051/0004-6361/202452560
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• plaNETic: Inferring the interiors of observed super-Earths and sub-Neptunes using neural networks
  2025 DOI: 10.5194/epsc-dps2025-1882
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• Searching for hot water world candidates with CHEOPS
  Astronomy & Astrophysics 2025 DOI: 10.1051/0004-6361/202453325
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• TESS and HARPS-N unveil two planets transiting TOI-1453
  Astronomy & Astrophysics 2025 DOI: 10.1051/0004-6361/202452969
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