Validation of a Third Planet in the LHS 1678 System

Autor: Michele L. Silverstein, Thomas Barclay, Joshua E. Schlieder, Karen A. Collins, Richard P. Schwarz, Benjamin J. Hord, Jason F. Rowe, Ethan Kruse, Nicola Astudillo-Defru, Xavier Bonfils, Douglas A. Caldwell, David Charbonneau, Ryan Cloutier, Kevin I. Collins, Tansu Daylan, William Fong, Jon M. Jenkins, Michelle Kunimoto, Scott McDermott, Felipe Murgas, Enric Palle, George R. Ricker, Sara Seager, Avi Shporer, Evan Tey, Roland Vanderspek, Joshua N. Winn

Publikováno v: The Astronomical Journal, Vol 167, Iss 6, p 255 (2024)

The nearby LHS 1678 (TOI-696) system contains two confirmed planets and a wide-orbit, likely brown-dwarf companion, which orbit an M2 dwarf with a unique evolutionary history. The host star occupies a narrow “gap” in the Hertzsprung–Russell dia

Externí odkaz: https://doaj.org/article/4ddcc075423c40f2b6dc78cb1a3f4a10

TOI-3235 b: A Transiting Giant Planet around an M4 Dwarf Star

Autor: Melissa J. Hobson, Andrés Jordán, E. M. Bryant, R. Brahm, D. Bayliss, J. D. Hartman, G. Á. Bakos, Th. Henning, Jose Manuel Almenara, Khalid Barkaoui, Zouhair Benkhaldoun, Xavier Bonfils, François Bouchy, David Charbonneau, Marion Cointepas, Karen A. Collins, Jason D. Eastman, Mourad Ghachoui, Michaël Gillon, Robert F. Goeke, Keith Horne, Jonathan M. Irwin, Emmanuel Jehin, Jon M. Jenkins, David W. Latham, Dan Moldovan, Felipe Murgas, Francisco J. Pozuelos, George R. Ricker, Richard P. Schwarz, S. Seager, Gregor Srdoc, Stephanie Striegel, Mathilde Timmermans, Andrew Vanderburg, Roland Vanderspek, Joshua N. Winn

Publikováno v: The Astrophysical Journal Letters, Vol 946, Iss 1, p L4 (2023)

We present the discovery of TOI-3235 b, a short-period Jupiter orbiting an M dwarf with a stellar mass close to the critical mass at which stars transition from partially to fully convective. TOI-3235 b was first identified as a candidate from TESS p

Externí odkaz: https://doaj.org/article/c810d9687422472ca7e6c71bc91a92ee

Transit detection of the long-period volatile-rich super-Earth ν2 Lupi d with CHEOPS

Autor: Sergio Hoyer, Vardan Adibekyan, J.-B. Delisle, Nuno C. Santos, David Barrado, Enric Palle, Damien Ségransan, Isabella Pagano, Malcolm Fridlund, Antonio García Muñoz, M. Steller, A. Deline, Guillem Anglada-Escudé, A. Bekkelien, Nicolas Billot, Ignasi Ribas, Don Pollacco, Roberto Ragazzoni, Yann Alibert, T. Bárczy, Gaetano Scandariato, H. P. Osborn, L. Borsato, Alain Lecavelier des Etangs, Heike Rauer, Thomas G. Wilson, M. Beck, Mahmoudreza Oshagh, L. Delrez, Nicholas A. Walton, Roi Alonso, S. G. Sousa, Stéphane Udry, M. J. Hooton, Kevin Heng, S. Sulis, Manuel Guedel, Göran Olofsson, Vincent Bourrier, Michaël Gillon, Anders Erikson, Monika Lendl, Didier Queloz, Davide Gandolfi, Olivier Demangeon, Luca Fossati, Nicolas Thomas, Wolfgang Baumjohann, Pierre F. L. Maxted, Brice-Olivier Demory, S. C. C. Barros, Alexis M. S. Smith, Willy Benz, Andrea Bonfanti, Sébastien Charnoz, Melvyn B. Davies, Juan Cabrera, Magali Deleuil, Alexis Brandeker, J. Haldemann, László L. Kiss, Giampaolo Piotto, Valerio Nascimbeni, Christopher Broeg, Andrea Fortier, Jacques Laskar, Christophe Lovis, D. Futyan, Valérie Van Grootel, Pascal Guterman, Gyula M. Szabó, A. E. Simon, Francisco J. Pozuelos, Andrew Collier Cameron, David Ehrenreich, S. Salmon, Xavier Bonfils, Nathan Hara

Publikováno v: Nature Astronomy, 5, 775-787
Digital.CSIC. Repositorio Institucional del CSIC
instname
Nature Astronomy
Nature Astronomy, 2021, 5, pp.775-787. ⟨10.1038/s41550-021-01381-5⟩
Nature Astronomy, Nature Publishing Group, 2021, 5, pp.775-787. ⟨10.1038/s41550-021-01381-5⟩

Delrez, L., et al.
Exoplanets transiting bright nearby stars are key objects for advancing our knowledge of planetary formation and evolution. The wealth of photons from the host star gives detailed access to the atmospheric, interior and orbita

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8189d6240ed856f355cb6d4337fe5bac
https://doi.org/10.1038/s41550-021-01381-5

A Second Planet Transiting LTT 1445A and a Determination of the Masses of Both Worlds

Autor: Jennifer G. Winters, Ryan Cloutier, Amber A. Medina, Jonathan M. Irwin, David Charbonneau, Nicola Astudillo-Defru, Xavier Bonfils, Andrew W. Howard, Howard Isaacson, Jacob L. Bean, Andreas Seifahrt, Johanna K. Teske, Jason D. Eastman, Joseph D. Twicken, Karen A. Collins, Eric L. N. Jensen, Samuel N. Quinn, Matthew J. Payne, Martti H. Kristiansen, Alton Spencer, Andrew Vanderburg, Mathias Zechmeister, Lauren M. Weiss, Sharon Xuesong Wang, Gavin Wang, Stéphane Udry, Ivan A. Terentev, Julian Stürmer, Gudmundur Stefánsson, Avi Shporer, Stephen Shectman, Ramotholo Sefako, Hans Martin Schwengeler, Richard P. Schwarz, Nicholas Scarsdale, Ryan A. Rubenzahl, Arpita Roy, Lee J. Rosenthal, Paul Robertson, Erik A. Petigura, Francesco Pepe, Mark Omohundro, Joseph M. Akana Murphy, Felipe Murgas, Teo Močnik, Benjamin T. Montet, Ronald Mennickent, Andrew W. Mayo, Bob Massey, Jack Lubin, Christophe Lovis, Pablo Lewin, David Kasper, Stephen R. Kane, Jon M. Jenkins, Daniel Huber, Keith Horne, Michelle L. Hill, Paula Gorrini, Steven Giacalone, Benjamin Fulton, Thierry Forveille, Pedro Figueira, Tara Fetherolf, Courtney Dressing, Rodrigo F. Díaz, Xavier Delfosse, Paul A. Dalba, Fei Dai, C. C. Cortés, Ian J. M. Crossfield, Jeffrey D. Crane, Dennis M. Conti, Kevin I. Collins, Ashley Chontos, R. Paul Butler, Peyton Brown, Madison Brady, Aida Behmard, Corey Beard, Natalie M. Batalha, Jose-Manuel Almenara

Publikováno v: Winters, J G, Cloutier, R, Medina, A A, Irwin, J M, Charbonneau, D, Astudillo-Defru, N, Bonfils, X, Howard, A W, Isaacson, H, Bean, J L, Seifahrt, A, Teske, J K, Eastman, J D, Twicken, J D, Collins, K A, Jensen, E L N, Quinn, S N, Payne, M J, Kristiansen, M H, Spencer, A, Vanderburg, A, Zechmeister, M, Weiss, L M, Wang, S X, Wang, G, Udry, S, Terentev, I A, Stürmer, J, Stefánsson, G, Shporer, A, Shectman, S, Sefako, R, Schwengeler, H M, Schwarz, R P, Scarsdale, N, Rubenzahl, R A, Roy, A, Rosenthal, L J, Robertson, P, Petigura, E A, Pepe, F, Omohundro, M, Murphy, J M A, Murgas, F, Močnik, T, Montet, B T, Mennickent, R, Mayo, A W, Massey, B, Lubin, J, Lovis, C, Lewin, P, Kasper, D, Kane, S R, Jenkins, J M, Huber, D, Horne, K, Hill, M L, Gorrini, P, Giacalone, S, Fulton, B, Forveille, T, Figueira, P, Fetherolf, T, Dressing, C, Díaz, R F, Delfosse, X, Dalba, P A, Dai, F, Cortés, C C, Crossfield, I J M, Crane, J D, Conti, D M, Collins, K I, Chontos, A, Butler, R P, Brown, P, Brady, M, Behmard, A, Beard, C, Batalha, N M & Almenara, J M 2022, ' A Second Planet Transiting LTT 1445A and a Determination of the Masses of Both Worlds ', Astronomical Journal, vol. 163, no. 4, 168 . https://doi.org/10.3847/1538-3881/ac50a9
Winters, J G, Cloutier, R, Medina, A A, Irwin, J M, Charbonneau, D, Astudillo-Defru, N, Bonfils, X, Howard, A W, Isaacson, H, Bean, J L, Seifahrt, A, Teske, J K, Eastman, J D, Twicken, J D, Collins, K A, Jensen, E L N, Quinn, S N, Payne, M J, Kristiansen, M H, Spencer, A, Vanderburg, A, Zechmeister, M, Weiss, L M, Wang, S X, Wang, G, Udry, S, Terentev, I A, Stuermer, J, Stefansson, G, Shporer, A, Shectman, S, Sefako, R, Schwengeler, H M, Schwarz, R P, Scarsdale, N, Rubenzahl, R A, Roy, A, Rosenthal, L J, Robertson, P, Petigura, E A, Pepe, F, Omohundro, M, Murphy, J M A, Murgas, F, Mocnik, T, Montet, B T, Mennickent, R, Mayo, A W, Massey, B, Lubin, J, Lovis, C, Lewin, P, Kasper, D, Kane, S R, Jenkins, J M, Huber, D, Horne, K, Hill, M L, Gorrini, P, Giacalone, S, Fulton, B, Forveille, T, Figueira, P, Fetherolf, T, Dressing, C, Diaz, R F, Delfosse, X, Dalba, P A, Dai, F, Cortes, C C, Crossfield, I J M, Crane, J D, Conti, D M, Collins, K, Chontos, A, Butler, R P, Brown, P, Brady, M, Behmard, A, Beard, C, Batalha, N M & Almenara, J-M 2022, ' A Second Planet Transiting LTT 1445A and a Determination of the Masses of Both Worlds ', Astronomical Journal, vol. 163, no. 4, 168 . https://doi.org/10.3847/1538-3881/ac50a9

LTT 1445 is a hierarchical triple M-dwarf star system located at a distance of 6.86 parsecs. The primary star LTT 1445A (0.257 M_Sun) is known to host the transiting planet LTT 1445Ab with an orbital period of 5.4 days, making it the second closest k

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a670cd3935b41769154fe8c069a0d229
https://resolver.caltech.edu/CaltechAUTHORS:20211018-185047173

SPIRou: NIR velocimetry and spectropolarimetry at the CFHT

Autor: L. Parès, M. J. Hobson, F. Dolon, Marielle Lacombe, C. Moutou, Gregory Barrick, S Macdonald, Tom Ray, Pascal Fouqué, B Dubois, S. H. P. Alencar, Xavier Bonfils, John Pazder, Francois Wildi, Étienne Artigau, J Dunn, E Carrié, M Larrieu, D. Kouach, P. Figueira, Bruno Castilho, Tom Benedict, Y Micheau, Stéphane Udry, Simon Thibault, René Doyon, V. Reshetov, Bruno Chazelas, Eder Martioli, Chi-Hung Yan, Nuno C. Santos, Isabelle Boisse, Oscar F. Hernández, Neil Cook, P. Rabou, François Moreau, C Feugeade, R. Sottile, Tom Vermeulen, Leslie Saddlemyer, François Bouchy, Jerome Bouvier, S. Perruchot, G Gallou, Shiang-Yu Wang, F. Henault, Philippe Vallée, Julien Morin, Sébastien Baratchart, A. Carmona, X. Delfosse, M Dupieux, Nicolas Striebig, Marc Baril, Luc Arnold, Z Challita, Francesco Pepe, I Wevers, J.-F. Donati, Lison Malo, Guillaume Hébrard, C Usher, H Valentin, D Kerley, Tilo Steinmetz

Publikováno v: Monthly Notices of the Royal Astronomical Society
Monthly Notices of the Royal Astronomical Society, 2020, 498 (4), pp.5684-5703. ⟨10.1093/mnras/staa2569⟩
Monthly Notices of the Royal Astronomical Society, Oxford University Press (OUP): Policy P-Oxford Open Option A, 2020, 498 (4), pp.5684-5703. ⟨10.1093/mnras/staa2569⟩

This paper presents an overview of SPIRou, the new-generation near-infrared spectropolarimeter / precision velocimeter recently installed on the 3.6-m Canada-France-Hawaii Telescope (CFHT). Starting from the two main science goals, namely the quest f

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::341bba1a549af39dc17cdd592b76ff8b
https://doi.org/10.1093/mnras/staa2569