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Akademický článek

GJ 367b Is a Dark, Hot, Airless Sub-Earth

Autor: Michael Zhang, Renyu Hu, Julie Inglis, Fei Dai, Jacob L. Bean, Heather A. Knutson, Kristine Lam, Elisa Goffo, Davide Gandolfi

Publikováno v: The Astrophysical Journal Letters, Vol 961, Iss 2, p L44 (2024)

We present the mid-infrared (5–12 μ m) phase curve of GJ 367b observed by the Mid-Infrared Instrument on the James Webb Space Telescope (JWST). GJ 367b is a hot ( T _eq = 1370 K), extremely dense (10.2 ± 1.3 g cm ^−3 ) sub-Earth orbiting an M d

Externí odkaz: https://doaj.org/article/11664dd2d56d488cbdedfe5fc670d58c

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Akademický článek

Company for the Ultra-high Density, Ultra-short Period Sub-Earth GJ 367 b: Discovery of Two Additional Low-mass Planets at 11.5 and 34 Days

Publikováno v: The Astrophysical Journal Letters, Vol 955, Iss 1, p L3 (2023)

GJ 367 is a bright ( V ≈ 10.2) M1 V star that has been recently found to host a transiting ultra-short period sub-Earth on a 7.7 hr orbit. With the aim of improving the planetary mass and radius and unveiling the inner architecture of the system, w

Externí odkaz: https://doaj.org/article/bb6730c7cc8945ababadf5fa74fd3d78

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The low density, hot Jupiter TOI-640 b is on a polar orbit

Publikováno v: Knudstrup, E, Albrecht, S H, Gandolfi, D, Marcussen, M L, Goffo, E, Serrano, L M, Dai, F, Redfield, S, Hirano, T, Csizmadia, S, Cochran, W D, Deeg, H J, Fridlund, M, Lam, K W F, Livingston, J H, Luque, R, Narita, N, Palle, E, Persson, C M & Van Eylen, V 2023, ' The low density, hot Jupiter TOI-640 b is on a polar orbit ', Astronomy & Astrophysics . < http://adsabs.harvard.edu/abs/2023arXiv230201702K >
Aarhus University

TOI-640 b is a hot, puffy Jupiter with a mass of $0.57 \pm 0.02$ M$_{\rm J}$ and radius of $1.72 \pm 0.05$ R$_{\rm J}$, orbiting a slightly evolved F-type star with a separation of $6.33^{+0.07}_{-0.06}$ R$_\star$. Through spectroscopic in-transit ob

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::181fecd9a9ed7272fb957baee742f898
https://pure.au.dk/ws/files/309160854/2302.01702

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TOI-2196 b : rare planet in the hot Neptune desert transiting a G-type star

Autor: Carina M. Persson, Iskra Y. Georgieva, Davide Gandolfi, Lorena Acuna, Artem Aguichine, Alexandra Muresan, Eike Guenther, John Livingston, Karen A. Collins, Fei Dai, Malcolm Fridlund, Elisa Goffo, James S. Jenkins, Petr Kabáth, Judith Korth, Alan M. Levine, Luisa M. Serrano, José Vines, Oscar Barragan, Ilaria Carleo, Knicole D. Colon, William D. Cochran, Jessie L. Christiansen, Hans J. Deeg, Magali Deleuil, Diana Dragomir, Massimiliamo Esposito, Tianjun Gan, Sascha Grziwa, Artie P. Hatzes, Katharine Hesse, Keith Horne, Jon M. Jenkins, John F. Kielkopf, P. Klagyivik, Kristine W. F. Lam, David W. Latham, Rafa Luque, Jaume Orell-Miquel, Annelies Mortier, Olivier Mousis, Noria Narita, Hannah L. M. Osborne, Enric Palle, Riccardo Papini, George R. Ricker, Hendrik Schmerling, Sara Seager, Keivan G. Stassun, Vincent Van Eylen, Roland Vanderspek, Gavin Wang, Joshua N. Winn, Bill Wohler, Roberto Zambelli, Carl Ziegler

Publikováno v: Astronomy and Astrophysics-A&A
Astronomy and Astrophysics-A&A, 2022, 666, ⟨10.1051/0004-6361/202244118⟩
Astronomy & Astrophysics, 666:A184

Highly irradiated planets in the hot Neptune desert are usually either small (R < 2 Rearth) and rocky or they are gas giants with radii of >1 Rjup. Here, we report on the intermediate-sized planet TOI-2196 on a 1.2 day orbit around a G-type star disc

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3c4e312cc7d86ad0058ed3a743e45c92
https://hdl.handle.net/10023/26356

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A puffy polar planet

Publikováno v: Astronomy & Astrophysics. 671:A164

TOI-640 b is a hot, puffy Jupiter with a mass of 0.57 ± 0.02 MJ and radius of 1.72 ± 0.05 RJ, orbiting a slightly evolved F-type star with a separation of 6.33−0.06+0.07 R⋆. Through spectroscopic in-transit observations made with the HARPS spec

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::79e39054331106f6ba4e350da4e49f6a
https://doi.org/10.1051/0004-6361/202245301

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A low-eccentricity migration pathway for a 13-h-period Earth analogue in a four-planet system

Autor: Luisa Maria Serrano, Davide Gandolfi, Alexander J. Mustill, Oscar Barragán, Judith Korth, Fei Dai, Seth Redfield, Malcolm Fridlund, Kristine W. F. Lam, Matías R. Díaz, Sascha Grziwa, Karen A. Collins, John H. Livingston, William D. Cochran, Coel Hellier, Salvatore E. Bellomo, Trifon Trifonov, Florian Rodler, Javier Alarcon, Jon M. Jenkins, David W. Latham, George Ricker, Sara Seager, Roland Vanderspeck, Joshua N. Winn, Simon Albrecht, Kevin I. Collins, Szilárd Csizmadia, Tansu Daylan, Hans J. Deeg, Massimiliano Esposito, Michael Fausnaugh, Iskra Georgieva, Elisa Goffo, Eike Guenther, Artie P. Hatzes, Steve B. Howell, Eric L. N. Jensen, Rafael Luque, Andrew W. Mann, Felipe Murgas, Hannah L. M. Osborne, Enric Palle, Carina M. Persson, Pam Rowden, Alexander Rudat, Alexis M. S. Smith, Joseph D. Twicken, Vincent Van Eylen, Carl Ziegler

Publikováno v: Serrano, L M, Gandolfi, D, Mustill, A J, Barragán, O, Korth, J, Dai, F, Redfield, S, Fridlund, M, Lam, K W F, Díaz, M R, Grziwa, S, Collins, K A, Livingston, J H, Cochran, W D, Hellier, C, Bellomo, S E, Trifonov, T, Rodler, F, Alarcon, J, Jenkins, J M, Latham, D W, Ricker, G, Seager, S, Vanderspeck, R, Winn, J N, Albrecht, S, Collins, K I, Csizmadia, S, Daylan, T, Deeg, H J, Esposito, M, Fausnaugh, M, Georgieva, I, Goffo, E, Guenther, E, Hatzes, A P, Howell, S B, Jensen, E L N, Luque, R, Mann, A W, Murgas, F, Osborne, H L M, Palle, E, Persson, C M, Rowden, P, Rudat, A, Smith, A M S, Twicken, J D, Van Eylen, V & Ziegler, C 2022, ' A low-eccentricity migration pathway for a 13-h-period Earth analogue in a four-planet system ', Nature Astronomy, vol. 6, no. 6, pp. 736-750 . https://doi.org/10.1038/s41550-022-01641-y
Nature Astronomy, 6, 736-750

It is commonly accepted that exoplanets with orbital periods shorter than 1 day, also known as ultra-short period (USP) planets, formed further out within their natal protoplanetary disk, before migrating to their current-day orbits via dynamical int

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c535a4d17488d1068c236b8ae3e325c8
http://arxiv.org/abs/2204.13573

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One year of AU Mic with HARPS: I -- measuring the masses of the two transiting planets

Autor: Norbert Zicher, Oscar Barragán, Baptiste Klein, Suzanne Aigrain, James E Owen, Davide Gandolfi, Anne-Marie Lagrange, Luisa Maria Serrano, Laurel Kaye, Louise Dyregaard Nielsen, Vinesh Maguire Rajpaul, Antoine Grandjean, Elisa Goffo, Belinda Nicholson

The system of two transiting Neptune-sized planets around the bright, young M-dwarf AU Mic provides a unique opportunity to test models of planet formation, early evolution, and star-planet interaction. However, the intense magnetic activity of the h

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dbc841fa8cceab2c9444dbd038cf4fb7
http://arxiv.org/abs/2203.01750

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TOI-1670 b and c

Publikováno v: The Astronomical Journal, 163(5):225
Digital.CSIC. Repositorio Institucional del CSIC
instname
Tran, Q H, Bowler, B P, Endl, M, Cochran, W D, MacQueen, P J, Gandolfi, D, Persson, C M, Fridlund, M, Palle, E, Nowak, G, Deeg, H J, Luque, R, Livingston, J H, Kabáth, P, Skarka, M, Šubjak, J, Howell, S B, Albrecht, S H, Collins, K A, Esposito, M, Van Eylen, V, Grziwa, S, Goffo, E, Huang, C X, Jenkins, J M, Karjalainen, M, Karjalainen, R, Knudstrup, E, Korth, J, Lam, K W F, Latham, D W, Levine, A M, Osborne, H L M, Quinn, S N, Redfield, S, Ricker, G R, Seager, S, Serrano, L M, Smith, A M S, Twicken, J D & Winn, J N 2022, ' TOI-1670 b and c : An Inner Sub-Neptune with an Outer Warm Jupiter Unlikely to Have Originated from High-eccentricity Migration ', Astronomical Journal, vol. 163, no. 5, 225 . https://doi.org/10.3847/1538-3881/ac5c4f

Full list of authors: Tran, Quang H.; Bowler, Brendan P.; Endl, Michael; Cochran, William D.; MacQueen, Phillip J.; Gandolfi, Davide; Persson, Carina M.; Fridlund, Malcolm; Palle, Enric; Nowak, Grzegorz; Deeg, Hans J.; Luque, Rafael; Livingston, John

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9570c4ef5d40a878a82498d9764b2151
https://hdl.handle.net/1887/3561576

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A radial velocity study of the planetary system of pi mensae: improved planet parameters for pi Mensae c and a third planet on a 125 day orbit

Publikováno v: The Astronomical Journal, 163(5):223
Digital.CSIC. Repositorio Institucional del CSIC
instname
Hatzes, A P, Gandolfi, D, Korth, J, Rodler, F, Sabotta, S, Esposito, M, Barragán, O, Van Eylen, V, Livingston, J H, Serrano, L M, Luque, R, Smith, A M S, Redfield, S, Persson, C M, Pätzold, M, Palle, E, Nowak, G, Osborne, H L M, Narita, N, Mathur, S, Lam, K W F, Kabáth, P, Johnson, M C, Guenther, E W, Grziwa, S, Goffo, E, Fridlund, M, Endl, M, Deeg, H J, Csizmadia, S, Cochran, W D, Cuesta, L G, Chaturvedi, P, Carleo, I, Cabrera, J, Beck, P G & Albrecht, S 2022, ' A Radial Velocity Study of the Planetary System of π Mensae : Improved Planet Parameters for π Mensae c and a Third Planet on a 125 Day Orbit ', Astronomical Journal, vol. 163, no. 5, 223 . https://doi.org/10.3847/1538-3881/ac5dcb

Full list of authors: Hatzes, Artie P.; Gandolfi, Davide; Korth, Judith; Rodler, Florian; Sabotta, Silvia; Esposito, Massimiliano; Barragán, Oscar; Van Eylen, Vincent; Livingston, John H.; Serrano, Luisa Maria; Luque, Rafael; Smith, Alexis M. S.; Re

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::44d68a319031a2bfca01c9a5e46be4c2
http://hdl.handle.net/1887/3561578

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