Building Excellence in Spectral Characterisation of Exoplanet Hosts and Other Stars

Project Information

EXOHOST

Grant agreement ID: 101079231

DOI

10.3030/101079231

Project closed

EC signature date 1 July 2022

Start date 1 January 2023

End date 31 December 2025

Funded under

• Widening participation and spreading excellence

Total cost

€ 1 220 267,50

EU contribution

€ 1 220 267,00

Coordinated by

TARTU ULIKOOL
Estonia

CORDIS provides links to public deliverables and publications of HORIZON projects.

Links to deliverables and publications from FP7 projects, as well as links to some specific result types such as dataset and software, are dynamically retrieved from OpenAIRE .

Publications

Peer reviewed articles (27)

Vertical and radial distribution of atomic carbon in HD 163296

Author(s): F. Urbina, J. Miley, M. Kama, L. Keyte
Published in: Astronomy & Astrophysics, Issue 686, 2024, ISSN 0004-6361
Publisher: EDP Sciences
DOI: 10.48550/ARXIV.2403.05042

SpecpolFlow: a new software package for spectropolarimetry using Python

Author(s): Colin P. Folsom, Christiana Erba, Veronique Petit, Shaquann Seadrow, Patrick Stanley, Tali Natan, Bonnie Zaire, Mary E. Oksala, Federico Villadiego Forero, Robin Moore, Marisol Catalan Olais
Published in: Journal of Open Source Software, Issue 10, 2025, ISSN 2475-9066
Publisher: The Open Journal
DOI: 10.48550/ARXIV.2505.18476

Planet gap-opening feedback on disc thermal structure and composition

Author(s): Chen, Kan; Kama, Mihkel; Pinilla, Paola; Keyte, Luke
Published in: Monthly Notices of the Royal Astronomical Society, Issue Volume 527, 2024, ISSN 0035-8711
Publisher: Oxford University Press
DOI: 10.48550/arXiv.2310.13690

The peculiar composition of the Sun is not related to giant planets

Author(s): M. Carlos, A. M. Amarsi, P. E. Nissen, G. Canocchi
Published in: Astronomy & Astrophysics, Issue 700, 2025, ISSN 0004-6361
Publisher: EDP Sciences
DOI: 10.48550/ARXIV.2505.22615

First Observation of the Complete Rotation Period of the Ultraslowly Rotating Magnetic O Star HD 54879

Author(s): C. Erba, C. P. Folsom, A. David-Uraz, G. A. Wade, S. Seadrow, S. Bellotti, L. Fossati, V. Petit, M. E. Shultz
Published in: The Astrophysical Journal, Issue 977, 2024, ISSN 0004-637X
Publisher: American Astronomical Society
DOI: 10.48550/ARXIV.2410.01418

Photometric and spectroscopic variability of the blue supergiant <i>ρ</i> Leo

Author(s): V. A. Checha, A. Aret, I. Kolka, T. Liimets, I. Araya, A. Christen, G. F. Avila Marín, R. S. Levenhagen, L. Cidale, T. Eenmäe, G. Hajiyeva, Ü. Kivila, V. Mitrokhina, H. Ramler, T. Verro
Published in: Astronomy &amp; Astrophysics, Issue 706, 2026, ISSN 0004-6361
Publisher: EDP Sciences
DOI: 10.48550/ARXIV.2512.15345

Newborn jet in the symbiotic system R Aquarii

Author(s): T. Liimets, D. P. K. Banerjee, M. Santander-García, J. Alcolea, S. B. Howell, U. Munari, B. Deshev, C. E. Woodward, A. Evans, E. Furlan, T. R. Geballe, R. D. Gehrz, V. Joshi, N. Scott, S. Starrfield
Published in: Astronomy &amp; Astrophysics, Issue 704, 2025, ISSN 0004-6361
Publisher: EDP Sciences
DOI: 10.48550/ARXIV.2511.14243

Stable magnetic fields and changing starspots on Vega

Author(s): T. Böhm, M. Holschneider, P. Petit, F. Lignières, F. Paletou, C. P. Folsom, M. Rainer
Published in: Astronomy &amp; Astrophysics, Issue 702, 2025, ISSN 0004-6361
Publisher: EDP Sciences
DOI: 10.48550/ARXIV.2508.13348

Evolving magnetic lives of Sun-like stars

Author(s): S. Bellotti, T. Lüftinger, S. Boro Saikia, C. P. Folsom, P. Petit, J. Morin, M. Güdel, J.-F. Donati, E. Alecian
Published in: Astronomy &amp; Astrophysics, Issue 700, 2025, ISSN 0004-6361
Publisher: EDP Sciences
DOI: 10.48550/ARXIV.2507.14861

Activity correlation and temporal variation of small-scale magnetic fields on young Sun-like stars

Author(s): A. Hahlin, B. Zaire, C. P. Folsom, K. Al Moulla, A. Lavail
Published in: Astronomy &amp; Astrophysics, Issue 706, 2026, ISSN 0004-6361
Publisher: EDP Sciences
DOI: 10.48550/ARXIV.2601.00663

A BCool survey of stellar magnetic cycles

Author(s): S. Bellotti, P. Petit, S. V. Jeffers, S. C. Marsden, J. Morin, A. A. Vidotto, C. P. Folsom, V. See, J.-D. do Nascimento
Published in: Astronomy &amp; Astrophysics, Issue 693, 2025, ISSN 0004-6361
Publisher: EDP Sciences
DOI: 10.48550/ARXIV.2412.09365

Refractory phosphorus in the HD 100546 protoplanetary disc

Author(s): Mihkel Kama, Oliver Shorttle, Sandipan P D Borthakur, Luke Keyte, Jennifer B Bergner, Luca Fossati, Colin P Folsom, Heleri Ramler
Published in: Monthly Notices of the Royal Astronomical Society, Issue 542, 2025, ISSN 0035-8711
Publisher: Oxford University Press (OUP)
DOI: 10.48550/ARXIV.2504.14228

Discovery of a Rapidly Evolving Global Magnetic Field in the M Dwarf YZ Cet and Constraints on the Magnetic Field of Its Planet YZ Cet b

Author(s): Ayan Biswas, Colin P. Folsom, James A. Barron, Gregg A. Wade, Stefano Bellotti, Corrado Trigilio
Published in: The Astrophysical Journal, Issue 997, 2026, ISSN 0004-637X
Publisher: American Astronomical Society
DOI: 10.48550/ARXIV.2512.16298

Planet-induced gas and dust substructure feedbacks on disc thermal structure

Author(s): Kan Chen, Paola Pinilla, Mihkel Kama
Published in: Monthly Notices of the Royal Astronomical Society, Issue 541, 2025, ISSN 0035-8711
Publisher: Oxford University Press (OUP)
DOI: 10.48550/ARXIV.2507.01336

Atmospheric dynamics of the hypergiant RW Cep during the Great Dimming

Author(s): A. Kasikov, I. Kolka, A. Aret, T. Eenmäe, S. P. D. Borthakur, V. Checha, V. Mitrokhina, S. Yang
Published in: Astronomy &amp; Astrophysics, Issue 694, 2025, ISSN 0004-6361
Publisher: EDP Sciences
DOI: 10.48550/ARXIV.2501.11701

Investigating Circumstellar Atomic Radiation‐Driven Dynamics

Author(s): Alexandra Lehtmets, Mihkel Kama, Luca Fossati, Anna Aret
Published in: Astronomische Nachrichten, 2025, ISSN 0004-6337
Publisher: Wiley
DOI: 10.48550/ARXIV.2512.01474

The solar sulphur abundance in view of large-scale atomic structure calculations and 3D non-LTE models

Author(s): A. M. Amarsi, W. Li, N. Grevesse, A. J. G. Jurewicz
Published in: Astronomy &amp; Astrophysics, Issue 703, 2025, ISSN 0004-6361
Publisher: EDP Sciences
DOI: 10.48550/ARXIV.2509.05225

Metal accretion scars may be common on magnetic, polluted white dwarfs

Author(s): S. Bagnulo, J. D. Landstreet, J. Farihi, C. P. Folsom, M. A. Hollands, L. Fossati
Published in: Astronomy &amp; Astrophysics, Issue 688, 2024, ISSN 0004-6361
Publisher: EDP Sciences
DOI: 10.48550/ARXIV.2407.17196

Ariel stellar characterisation

Author(s): M. Tsantaki, L. Magrini, C. Danielski, D. Bossini, D. Turrini, N. Moedas, C. P. Folsom, H. Ramler, K. Biazzo, T. L. Campante, E. Delgado-Mena, R. da Silva, S. G. Sousa, S. Benatti, G. Casali, K. G. He
Published in: Astronomy &amp; Astrophysics, Issue 697, 2025, ISSN 0004-6361
Publisher: EDP Sciences
DOI: 10.48550/ARXIV.2502.20950

Abundance analysis of stars hosting gas-rich debris discs

Author(s): Sandipan P. D. Borthakur, Mihkel Kama, Luca Fossati, Quentin Kral, Colin P. Folsom, Johanna Teske, Anna Aret
Published in: Astronomy &amp; Astrophysics, Issue 697, 2025, ISSN 0004-6361
Publisher: EDP Sciences
DOI: 10.48550/ARXIV.2503.03614

ExoClock Project. IV. A Homogeneous Catalog of 620 Updated Exoplanet Ephemerides

Author(s): A. Kokori, A. Tsiaras, G. Pantelidou, A. Jones, A. Siakas, B. Edwards, G. Tinetti, A. Wünsche, Y. Jongen, F. Libotte, M. Correa, L. V. Mugnai, A. Bocchieri, A. R. Capildeo, E. Poultourtzidis, C. Sidiropoulos, L. Bewersdorff, G. Lekkas, G. Grivas, R. A. Buckland, S. R.-L. Futcher, P. Matassa, J.-P. Vignes, A. O. Kovacs, M. Raetz, B. E. Martin, A. Popowicz, D. Gakis, P. Batsela, V. Michalaki, A. Nastasi, C. Pereira, A. Iliadou, F. Walter, N. I. Paschalis, K. Vats, N. A-thano, R. Abraham, V. K. Agnihotri, M. Á. Álava-Amat, R. Albanesi, T. Alderweireldt, J. Alonso-Santiago, D. Q. Amat, L. Andrade, V. Anzallo, J. Aragones, E. Arce-Mansego, D. Arnot, R. A. Artola, C. Aumasson, M. Bachschmidt, R. Barberá-Córdoba, J.-F. Barrois, P. R. Barroy, M. Bastoni, V. Béjar, A. A. Belinski, A. Ben Lassoued, P. Bendjoya, B. Benei, D. Bennett, K. Bernacki, G. O. Bernard, L. Betti, G. Biesse, M. Billiani, P. Bosch-Cabot, V. Boucher, R. C. Boufleur, D. Boulakos, P. J.-M. Brandebourg, S. M. Brincat, X. Bros, A. Brosio, S. Brouillard, A.-M. Bruzzone, L. Cabona, C. Calamai, G. Calapai, Y. Calatayud-Borràs, M. Caló, F. Campos, A. Carbognani, F. Carretero, R. Casas, M. L. Castanheira, G. Catanzaro, L. Cavaglioni, C.-M. Chang, M. Chella, W.-H. Chen, P.-J. Chiu, R. Ciantini, J.-F. Coliac, J. Collins, F. Conti, G. Conzo, W. R. Cooney, L. N. Correa, S. P. Cosentino, N. Crouzet, M. V. Crow, B. V.-H.-V. da-Silva, A. Damonte, D. Daniel, S. Dawes, L. de Almeida, P. De Backer, A. de Melo, M. Deldem, D. Deligeorgopoulos, Y. Delisle, F. Denjean, F. Dias, S. Diaz Lopez, T. Dittadi, N. Dodd, S. Doman, G. Domènech-Rams, T. G. Dooley, S. Drapkin-Junyent, F. Dubois, A. Dustor, R. Dymock, T. Eenmäe, M. Emilio, E. Esparza-Borges, J. Estevez, C. Falco, R. G. Farfán, P. Farissier, G. Farrall, G. Fernandez Rodriguez, A. Ferretti, G. Ferrini, L. Fini, J. Fiołka, G. Fleerackers, J. Flores-Martín, G. Follero, S. Foschino, L. Fossi, M. Fowler, A. Frasca, E. Frigeni, I. Fukuda, A. Fukui, G. Furlato, D. Gabellini, T. Gainey, P. Gajdoš, D. Galán-Diéguez, P. Gamache, E. García Navarro, N. A. Garcia, A. García-Sánchez, A. Garmash, T. Gesser, A. Ginard, I. Gkolias, E. Gomez, G. F. Gonçalves, J. González-Edo, J. González-Rodríguez, G. Gruntz, B. Guillet, T. Guillot, M. N. Günther, H. Hautecler, Y. Hayashi, E. Herrero, K. Hills, H. S. Hodkinson, G. Holtkamp, G. R. Hunt, N. Iannascoli, M. Iozzi, M. Irzyk, K. Isogai, K. Johnson, P. Jóźwik-Wabik, A. E. Kaeouach, S. Kartal, H. Kiiskinen, Ü. Kivila, U. Kolb, J. Korth, D. Kustrin, S.-P. Lai, S. Lasota, F. Le Rhun, Y. H. Lee, D. Lefoulon, F. Legrele, H. Leipold, A. Liberti, T. Lien, Y.-H. Lin, F. Linsalata, J. H. Livingston, C. Lopresti, S. Lora, E. R. Lorenz, D. Madison, M. Mannucci, A. Marchini, A. Marino, J.-C. Mario, E. Maris, J.-B. Marquette, N. A. Maslennikova, A. E. McGregor, A. Mengoudis, P. Meni, M. Mesarč, M. Michelagnoli, J. Michelet, J. Mieglitz, M. Mifsud, M. Miller, S. A. Mills, E. Miny, S. Miquel Romero, D. Molina, S. Montchaud, B. Monteleone, M. Monticelli, N. Montigiani, M. Morales-Aimar, G. Morello, L. Moretti, M. Mori, F. Mortari, M. Müller, D. Mura, F. Murgas, N. Narita, A. Nath, R. Nicollerat, V. Noce, P. Norridge, A. J. Norton, Y. Ogmen, Z. Orbanic, J. Owen-Lloyd-Walters, E. P. Pace, E. Pakštienė, A. F. Pala, E. Palle, C. Pantacchini, I. Parenti, D. Patterson, E. Pavoni, A. W. Pereira, I. Peretto, V. Perroud, S. W. Peterson, V. Pettina, M. Phillips, J. Philpot, D. Pica, P. Pintr, J.-B. Pioppa, T. J. Plunkett, T. G. Prado, A. Prasad, R. A. Prestes, A. Putz, F. Régembal, L. Ribe, D. F. Rocha, J. Rodrigues, R. Roth, L. Rousselot, N. Rozand, X. Rubia, N. Ruocco, M. Salisbury, T. Salomon, L. Sassaro, J. E.-G. Savage, T. Savin, F. Scaggiante, F.-X. Schmider, M. Serrau, I. D. Sharp, D. Shave-Wall, A. F. Silva, V. Školník, A. Solmaz, A. Sonka, M. Spiller, T. H. Sprecher, R. Stanga, M. Stefanini, D. Stouraitis, M. Stratigou-Psarra, O. Suarez, D. Suys, M. Szkudlarek, M. F. Talafha, A. N. Tarasenkov
Published in: The Astrophysical Journal Supplement Series, Issue 283, 2026, ISSN 0067-0049
Publisher: American Astronomical Society
DOI: 10.48550/ARXIV.2511.14407

Abundance analysis of chemically depleted post-AGB/post-RGB binaries with faint discs

Author(s): Maksym Mohorian, Devika Kamath, Meghna Menon, Hans Van Winckel, Mingjie Jian, Anish M. Amarsi, Kateryna Andrych
Published in: Publications of the Astronomical Society of Australia, Issue 42, 2025, ISSN 1323-3580
Publisher: Cambridge University Press (CUP)
DOI: 10.48550/ARXIV.2510.16691

Volatile composition of the HD 169142 disc and its embedded planet

Author(s): Luke Keyte, Mihkel Kama, Alice S Booth, Charles J Law, Margot Leemker
Published in: Monthly Notices of the Royal Astronomical Society, Issue 534, 2024, ISSN 0035-8711
Publisher: Oxford University Press (OUP)
DOI: 10.48550/ARXIV.2410.01418

Hydrodynamic Predictions for the Next Outburst of T Coronae Borealis: It Will Be the Brightest Classical or Recurrent Nova Ever Observed in X-Rays*

Author(s): S. Starrfield, M. Bose, C. E. Woodward, C. Iliadis, W. R. Hix, A. Evans, G. Shaw, D. P. K. Banerjee, T. Liimets, K. L. Page, T. R. Geballe, I. Ilyin, I. Perron, R. M. Wagner
Published in: The Astrophysical Journal, Issue 982, 2025, ISSN 0004-637X
Publisher: American Astronomical Society
DOI: 10.48550/ARXIV.2502.10925

Non-local thermodynamical equilibrium atmospheric modelling of the ultra-hot Jupiter WASP-178b and comparison with UV and optical observations

Author(s): L. Fossati, A. G. Sreejith, T. Koskinen, A. Bonfanti, D. Shulyak, F. Borsa, S. P. D. Borthakur, P. E. Cubillos, M. E. Young
Published in: Astronomy &amp; Astrophysics, Issue 699, 2025, ISSN 0004-6361
Publisher: EDP Sciences
DOI: 10.48550/ARXIV.2506.01132

The magnetic and spin-down properties of slowly rotating fully convective M dwarfs

Author(s): Victor See, Louis Amard, Stefano Bellotti, Sudeshna Boro Saikia, Emma L Brown, Jean-Francois Donati, Rim Fares, Adam J Finley, Colin P Folsom, Élodie M Hébrard, Moira M Jardine, Sandra V Jeffers, B
Published in: Monthly Notices of the Royal Astronomical Society, Issue 542, 2025, ISSN 0035-8711
Publisher: Oxford University Press (OUP)
DOI: 10.48550/ARXIV.2507.16986

Evaluating Star–Planet Interactions with Zeeman Doppler Imaging: Case Study in YZ Ceti

Author(s): J. Sebastian Pineda, Stefano Bellotti, Jackie Villadsen, Aline Vidotto, Julien Morin, Colin P. Folsom
Published in: The Astrophysical Journal, Issue 997, 2026, ISSN 0004-637X
Publisher: American Astronomical Society
DOI: 10.48550/ARXIV.2511.21853

Conference proceedings (5)

EXOHOST conference Abstract book

Author(s): Leedjärv, Laurits; Lehtmets, Alexandra
Published in: 2025
Publisher: Zenodo
DOI: 10.5281/ZENODO.17607055

Photospheric contamination in early-type stars: From protoplanetary to debris disks

Author(s): BORTHAKUR, SANDIPAN
Published in: EAS2025, 2025
Publisher: Zenodo
DOI: 10.5281/ZENODO.17265614

Investigating Circumstellar Atomic Radiation-driven Dynamics

Author(s): Lehtmets, Alexandra
Published in: 2024
Publisher: Zenodo
DOI: 10.5281/ZENODO.15094194

New fibre-fed Echelle spectrograph and photometer on 1.5 m telescope at Tartu Observatory

Author(s): Heleri Ramler; Tõnis Eenmäe
Published in: Europlanet Science Congress 2024, 2024
Publisher: Europlanet Science Congress 2024
DOI: 10.5194/EPSC2024-386

Stellar Photospheric Contamination: Evolution from Protoplanetary to Debris Disks

Author(s): BORTHAKUR, SANDIPAN
Published in: 2025
Publisher: Zenodo
DOI: 10.5281/ZENODO.16040212

Other (14)

Evaporated atmosphere in the interplanetary medium of early-type stars

Author(s): Lehtmets, Alexandra
Published in: Europlanet Science Congress 2024, 2025
Publisher: Zenodo
DOI: 10.5281/ZENODO.17200242

Promoting TO Stellar Physics department to UT students

Author(s): Lehtmets, Alexandra
Published in: 2025
Publisher: Zenodo
DOI: 10.5281/ZENODO.17200925

Stellar Photospheric Contamination as a Tool for Indirect Characterisation of Hot Jupiter Atmospheres

Author(s): Lehtmets, Alexandra
Published in: 2025
Publisher: Zenodo
DOI: 10.5281/ZENODO.17200701

Stellar accretion contamination: Protoplanetary to Debris disks

Author(s): BORTHAKUR, SANDIPAN
Published in: 2025
Publisher: Zenodo
DOI: 10.5281/ZENODO.17736118

EXOHOST: EU Twinning project

Author(s): Aret, Anna
Published in: 2025
Publisher: Zenodo
DOI: 10.5281/ZENODO.17912760

Accretion contamination on the photosphere of Herbig stars

Author(s): BORTHAKUR, SANDIPAN
Published in: 2025
Publisher: Zenodo
DOI: 10.5281/ZENODO.17736186

ELU OTSINGUD EKSOPLANEETIDEL - kas oleme universumis üksi?

Author(s): Lehtmets, Alexandra
Published in: 2025
Publisher: Zenodo
DOI: 10.5281/ZENODO.17200663

Kui lähedal me oleme tulnukate leidmisele?

Author(s): Lehtmets, Alexandra
Published in: 2025
Publisher: Zenodo
DOI: 10.5281/ZENODO.17200017

Breathing new air: probing the atmospheres of exoplanet

Author(s): Lehtmets, Alexandra
Published in: 2025
Publisher: Zenodo
DOI: 10.5281/ZENODO.17199829

Eksoplaneetide loomaaed

Author(s): Lehtmets, Alexandra
Published in: 2025
Publisher: Zenodo
DOI: 10.5281/ZENODO.17200482

Eksoplaneetide teke ja atmosfääriline evolutsioon

Author(s): Lehtmets, Alexandra
Published in: 2025
Publisher: Zenodo
DOI: 10.5281/ZENODO.17200531

Investigating circumstellar atomic radiation-driven dynamics in exoplanet and debris disc environments

Author(s): Lehtmets, Alexandra
Published in: 2025
Publisher: Zenodo
DOI: 10.5281/ZENODO.17200613

Analysing alien skies: understanding exoplanetary atmospheres

Author(s): Lehtmets, Alexandra
Published in: 2025
Publisher: Zenodo
DOI: 10.5281/ZENODO.17200971

Enhancing Northern Sky Monitoring. Upgrades to Tartu Observatory's 1.5-m Telescope for High-Resolution Spectroscopy and Multi-Band Photometry

Author(s): Eenmäe, Tõnis
Published in: 2025
Publisher: Zenodo
DOI: 10.5281/ZENODO.17639108