Planet K2-18 b

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• New Constraints on DMS and DMDS in the Atmosphere of K2-18 b from JWST MIRI

  2025 MADHUSUDHAN N., CONSTANTINESCOU S., HOLMBERG M., SARKAR S., PIETTE A. & MOSES J.
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  2025 JORDAN S., SHOERTLE O. & QUANZ S.
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• Can Moons Exist around the Habitable-zone Planet K2-18b?

  2025 PATEL Sh., QUARLES B., CUNTZ M. & WEINBERG N.
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• A spectroscopist’s view of the evolving story of exoplanet K2-18 b

  2025 TENNYSON J. & YURCHENKO S.
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  2025 HO R., BELLO-ARUFE A., TOKADJIAN A., YANG J., DAMIANO M. et al.
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• Are there Spectral Features in the MIRI/LRS Transmission Spectrum of K2-18b?

  2025 TAYLOR J.
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• Unraveling the non-equilibrium chemistry of the temperate sub-Neptune K2-18 b

  2025 JAZIRI A., SCHIER O., VENOT O. & CARRASCO N.
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  2025 KALINSKI M.
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• A Systematic Search for Trace Molecules in Exoplanet K2-18 b

  2025 PICA-CIAMARRA L., MADHUSUDHAN N., COOK G., CONSTANTINESCOU S. & BINET M.
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• A Comprehensive Reanalysis of K2-18 b's JWST NIRISS+NIRSpec Transmission Spectrum

  2025 SCHMIDT S., MacDONALD R., TSAI Sh.-M., RADICA M., WANG L.-Ch. et al.
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• Insufficient evidence for DMS and DMDS in the atmosphere of K2-18 b. From a joint analysis of JWST NIRISS, NIRSpec, and MIRI observations

  2025 LUQUE R., PIAULET-GHORAYEB C., RADICA M., XUA Q., ZHANG M. et al.
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• Quantitative Predictions for Unexplained Phenomena in Upcoming Euclid, JWST, and SKA Data

  2025 ZHU H.
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• Is the high-energy environment of K2-18b special?

  2025 RUKDEE S., GÜDEL M., VIVOVIC I., POPPENH&aUml;GER K., BORO S. et al.
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• Carbon-rich Sub-Neptune Interiors Are Compatible with JWST Observations

  2025 LIN Z. & SEAGER S.
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  2025 LEUNG M., TSA Sh.-M., SCHWIETERMAN E., ANGERHAUSEN D. & HANSEN J.
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• A new convection scheme for GCMs of temperate sub-Neptunes

  2025 BARRIER E. & MADHUSUDHAN N.
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• Life in the Exoplanet K2‑18b?

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• Nitrogen chemistry of hycean worlds on the example of K2-18b

  2025 RADECKA M. & RIMMER P.
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• Three-dimensional Transport-induced Chemistry on Temperate sub-Neptune K2-18b, Part I: the Effects of Atmospheric Dynamics

  2025 LIU J., CHRISTIE D. & YANG J.
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• Hydrocarbon Hazes on Temperate sub-Neptune K2-18b supported by data from the James Webb Space Telescope

  2025 LIU R., LAVVAS P., TINETTI G., MALDONADO J., MA S. & SABA A.
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• Investigating aerosols as a reconciliation mechanism for K2-18 b JWST MIRI and NIRISS/NIRSpec observations

  2025 JAZIRI A. & DRANT Th.
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  2025 ZHANG M., BEAN J., WILSON D., DUVVIN G., SCHNEIDER Ch. et al.
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• Contamination in Exoplanet Transit Spectroscopy with a Changing Stellar Surface

  2024 QIAO Y., WANG Sh. & LIN Z.
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• Distinguishing oceans of water from magma on mini-Neptune K2-18b

  2024 SHORTTLE O., JORDAN S., NICHOLLS H., LICHTENBERG T. & BOWER D.
  Astron. J. , 962 , L8
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• JWST observations of K2-18b can be explained by a gas-rich mini-Neptune with no habitable surface

  2024 WOGAN N., BATALHA N., ZAHNLE K., KRISSANSEN-TOTTON J., TSA Sh.-M. & HU R.
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• Chemical mapping of temperate sub-Neptune atmospheres: Constraining the deep-interior H2O/H2 using the atmospheric CO2/CH4

  2024 YANG J. & HU R.
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  2024 YANG J. & HU R.
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• The Geochemical Potential for Metabolic Processes on the Sub-Neptune Exoplanet K2-18b

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• Do Temperate Rocky Planets Around M Dwarfs have an Atmosphere ?

  2024 DOYON R.
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• The Hycean Paradigm in the Search for Life Elsewhere

  2024 MADHUSUDHAN N.
  in "Astrophysics: The James Webb Space Telescope: from first light to new world views", proceedings of the Pontifical Academy of Sciences workshop , accepted
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• High-resolution Spectroscopic Reconnaissance of a Temperate Sub-Neptune

  2024 CABOT S., MADHUSUDHAN N., CONSTANTINESCU S., VALENCIA D., VOS J. et al.
  ApJ. Letters , 966 , L10
  paper   arxiv  

• Probing Cold-to-Temperate Exoplanetary Atmospheres: The Role of Water Condensation on Surface Identification with JWST

  2024 HUANG Z., YU X., TSAI Sh.-M., MOSES J., OHNO K. et al.
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• Volatile-rich Sub-Neptunes as Hydrothermal Worlds: The Case of K2-18 b

  2024 LUU C., YU X., GLEIN Ch., INNES H., AGUICHINE A. et al.
  ApJ Letters , submitted
  arxiv  

• Potential Interior Structures and Habitability of Super-Earth Exoplanets LHS 1140 b, K2-18 b, TOI-1452 b and TOI-1468 c

  2024 DASPUTE M., WANDEL A., KOPPARAPU R., PERDELWITZ V., TEKLU J. & TAL-OR L.
  ApJ , 979 , 158
  paper   arxiv  

• Considerations for Photochemical Modeling of Possible Hycean Worlds

  2024 COOKE G. & MADHUSUDHAN N.
  ApJ , 977 , 209
  paper  

• Carbon-bearing Molecules in a Possible Hycean Atmosphere

  2023 MADHUUDHAN N., SARKAR S., CONSTANTINOU S., HOLMBERG M., PIETTE A. & MOSES J.
  ApJ. Letters , accepted
  arxiv  

• Modeling the Transmission and Emission Spectra of K2-18b: Determining the Surfaces of Exoplanets with Hydrogen Dominated Atmospheres

  2023 NICHOLSON L., HOOD C., FORTNEY J. & YU X.
  Res. Notes AAS , 7 , 87
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• Detecting Technosignatures from Earth-scale Civilizations

  2023 ASHTARI R.
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• Secular Orbital Dynamics of the Possibly Habitable Planet K2-18 b with and without the Proposed Inner Companion

  2023 MAKAROV V. & GOLDIN A.
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  paper   arxiv  

• Hycean Exoplanets as Targets for Technosignature Detection: A Case Study of K2-18 b in the 3–10 GHz Band

  2023 SAIDE R., FARAH W., SHEIKH S., POLLAK A., SIEMION A. et al.
  Res. Notes AAS , 7 , 233
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• CAMEMBERT: A Mini-Neptunes General Circulation Model Intercomparison, Protocol Version 1.0.A CUISINES Model Intercomparison Project

  2022 CHRISTIE D., MEE A., INNES H., NOTI P., CHARNAY B. et al.
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• Revisiting Radial Velocity Measurements of the K2-18 System with the Line-by-Line Framework

  2022 RADICA M., ARTIGAU E., LEFRENIERE D., CADIEUX Ch., COOK N. et al.
  MNRAS , 517 , 5050
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• Characterising atmospheres of cloudy temperate mini-neptunes with JWST

  2022 CONSTANTINOU S. & MADHUSUDHAN N.
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• Photochemistry and Spectral Characterization of Temperate and Gas-rich Exoplanets

  2021 HU R.
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  paper  

• 1D atmospheric study of the temperate sub-Neptune K2-18b

  2021 BLAIN D., CHARNAY B. & BEZARD B.
  Astron. & Astrophys. , 646 , A15
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• Unveiling shrouded oceans on temperate sub-Neptunes via transit signatures of solubility equilibria vs. gas thermochemistry

  2021 HU R., DAMIANIO M., SCHEUCHER M., KITE E., SEAGER S. & RAUER H.
  ApJ. Letters , 921 , L8
  paper   arxiv  

• How to identify exoplanet surfaces using atmospheric trace species in hydrogen-dominated atmospheres

  2021 YU X., MOSES J., FORTNEY J. & ZHANG X.
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  paper   arxiv

• Deep Characterization of the Atmosphere of a Temperate Sub-Neptune

  2021 HU R. et al.
  JWST GO Programme
  abstract

• Chemical Disequilibrium in a Temperate Sub-Neptune

  2021 MADHUSUDHAB N.
  JWST GO Programme
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• Stellar surface inhomogeneities as a potential source of the atmospheric signal detected in the K2-18 b transmission spectrum

  2021 BARCLAY Th., KOSTOV V., COLON K., QUINTANA E., SCHLIEDER J. et al.
  Astron. J. , accepted
  arxiv

• How Deep Is the Ocean? Exploring the phase structure of water-rich sub-Neptunes

  2021 NIXON M. & MADHUSUDHAN N.
  MNRAS , 505 , 3414
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• The interior and atmosphere of the habitable-zone exoplanet K2-18b

  2020 MADHUSUDHAN N., NIXON M., WELBANKS L., PIETTE A. & BOOTH R.
  ApJ. Letters , accepted
  arxiv  

• Disentangling Atmospheric Compositions of K2-18 b with Next Generation Facilities

  2020 CHANGEAT Q., EDWARDS B., AL-REFAIE A., TSIARAS A., WALDMANN I. & TINETTI G.
  ApJ , submitted
  arxiv  

• Formation of secondary atmospheres on terrestrial planets by late disk accretion

  2020 KRAL Q., DAVOULT J. & CHARNAY B.
  Nature Astronomy , 4 , 769
  paper   arxiv  

• Consistently Simulating a Wide Range of Atmospheric Scenarios for K2-18b with a Flexible Radiative Transfer Module

  2020 SCHEUCHER M., WUNDERLICH F., GRENFELL J., GODOLT M., SCHREIER F. et al.
  ApJ. , 898 , 44
  paper  arxiv

• Tidal evolution of exoplanetary systems hosting potentially habitable exoplanets. The cases of LHS-1140 b-c and K2-18 b-c

  2020 GOMES G. & FERRAZ-MELLO S.
  MNRAS , 494 , 5082
  paper   arxiv

• The high-energy environment and atmospheric escape of the mini-Neptune K2-18 b

  2020 dos SANTOS L., EHRENREICH D., BOURRIER V., ASTUDILLO-DEFRU N., BONFILS X. et al.
  Astron. & Astrophys. , 634 , L4
  paper  arxiv  

• On the Temperature Profiles and Emission Spectra of Mini-Neptune Atmospheres

  2020 PIETTE A. & MADHUSUDHAN N.
  ApJ , accepted
  arxiv

• Mass-Radius relationship for M dwarf exoplanets: Comparing nonparametric and parametric methods

  2019 KANODIA Sh., WOLFGANG A., STEFANSSON G., NING B. & MAHADEVAN S.
  ApJ , submitted
  arxiv  

• The K2-18b Planetary System: Estimates of the Age and X-UV Irradiances of a Habitable Zone "Wet" Sub-Neptune Planet

  2019 GUINAN E. & ENGIE S.
  Res. Notes AAS , 3 , 189
  paper  

• Water Vapor on the Habitable-Zone Exoplanet K2-18b

  2019 BENNEKE B., WONG I., PIAULET C., KNUTSON H., CROSSFIELD I. et al.
  ApJ. Letters , 887 , L14
  paper  arxiv  

• Water vapour in the atmosphere of the habitable- zone eight-Earth-mass planet K2-18 b

  2019 TSIARAS A., WALDMANN I., TINETTI G., TENNYSON J. & YOURCHENKO S.
  Nature Astronomy , in press , 3
  paper  arxiv  

• The CARMENES search for exoplanets around M dwarfs: A low-mass planet in the temperate zone of the nearby K2-18

  2018 PAULA S., HENNING Th., MARTIN K., TRIFON T., ZECHMEISTER L., et al.
  Astron. J. , accepted
  arxiv  

• The CARMENES Search for Exoplanets around M Dwarfs: A Low-mass Planet in the Temperate Zone of the Nearby K2-18

  2018 SARKIS P., HENNING Th., KÜRSTER M., TRIFONOV T., ZECHMEISTER M. et al.
  Astron. J. , 155 , 257
  arxiv  

• Characterization of the K2-18 multi-planetary system with HARPS: A habitable zone super-Earth and discovery of a second, warm super-Earth on a non-coplanar orbit

  2017 CLOUTIER R., ASTUDILLO-DEFRU N., DOYON R., BONFILS X., ALMENARA J. et al.
  Astron. & Astrophys. , 608 , A35
  paper  arxiv   ADS  

• Spitzer Observations Confirm and Rescue the Habitable-Zone Super-Earth K2-18b for Future Characterization

  2016 BENNEKE B., WERNER M., PETIGURA E., KNUTSON H., DRESSING C. et al.
  ApJ , 834 , 187
  paper  arxiv  ADS  

• Stellar and Planetary Properties of K2 Campaign 1 Candidates and Validation of 17 Systems, Including a Planet Receiving Earth-like Insolation

  2015 MONTET B., MORTON T., FOREMAN-MACKEY D., JOHNSON J., HOGG D. et 4 additional authors
  ApJ , 809 , 25
  arxiv   paper   ADS