Zobrazeno 1 - 10
of 1 515
pro vyhledávání: '"Sub-Earth"'
Autor:
Hernandez, J. I. Gonzalez, Mascareno, A. Suarez, Silva, A. M., Stefanov, A. K., Faria, J. P., Tabernero, H. M., Sozzetti, A., Rebolo, R., Pepe, F., Santos, N. C., Cristiani, S., Lovis, C., Dumusque, X., Figueira, P., Lillo-Box, J., Nari, N., Benatti, S., Hobson, M. J., Castro-Gonz'alez, A., Allart, R., Passegger, V. M., Osorio, M. -R. Zapatero, Adibekyan, V., Alibert, Y., Prieto, C. Allende, Bouchy, F., Damasso, M., D'Odorico, V., Di Marcantonio, P., Ehrenreich, D., Curto, G. Lo, Santos, R. G'enova, Martins, C. J. A. P., Mehner, A., Micela, G., Molaro, P., Nunes, N., Palle, E., Sousa, S. G., Udry, S.
Publikováno v:
A&A, 690, A79 (2024)
Barnard's star is a primary target within the ESPRESSO guaranteed time observations (GTO) as it is the second closest neighbour to our Sun after the $\alpha$ Centauri stellar system. We present here a large set of 156 ESPRESSO observations of Barnard
Externí odkaz:
http://arxiv.org/abs/2410.00569
The existence of an early matter-dominated epoch prior to the big bang nucleosynthesis may lead to a scenario where the thermal dark matter cools faster than plasma before the radiation dominated era begins. In the radiation-dominated epoch, dark mat
Externí odkaz:
http://arxiv.org/abs/2408.08360
Autor:
Stefanov, A. K., Hernández, J. I. González, Mascareño, A. Suárez, Nari, N., Rebolo, R., Damasso, M., Castro-González, A., Osorio, M. -R. Zapatero, Prieto, C. Allende, Silva, A. M., Martins, C. J. A. P.
Publikováno v:
A&A 693, L3 (2025)
A sub-Earth-mass planet orbiting Barnard's star, designated as Barnard b, has been recently announced. At almost the same time, the first photometric data of Barnard's star by the Transit Exoplanet Survey Satellite (TESS) was released in Sector 80. W
Externí odkaz:
http://arxiv.org/abs/2410.00577
Autor:
Chachan, Yayaati, Lee, Eve J.
Publikováno v:
ApJ, 977, 61 (2024)
Small planets ($\lesssim 1$ M$_\oplus$) at intermediate orbital distances ($\sim$1 au) represent an uncharted territory in exoplanetary science. The upcoming microlensing survey by the Nancy Grace Roman Space Telescope will be sensitive to objects as
Externí odkaz:
http://arxiv.org/abs/2409.18171
Autor:
Poppenhaeger, K., Ketzer, L., Ilic, N., Magaudda, E., Robrade, J., Stelzer, B., Schmitt, J. H. M. M., Schneider, P. C.
Publikováno v:
A&A 689, A188 (2024)
The planet GJ 367 b is a recently discovered high-density sub-Earth orbiting an M dwarf star. Its composition was modelled to be predominantly iron with a potential remainder of a hydrogen-helium envelope. Here we report an X-ray detection of this pl
Externí odkaz:
http://arxiv.org/abs/2401.17302
Autor:
Kirk, James, Stevenson, Kevin B., Fu, Guangwei, Lustig-Yaeger, Jacob, Moran, Sarah E., Peacock, Sarah, Alam, Munazza K., Batalha, Natasha E., Bennett, Katherine A., Gonzalez-Quiles, Junellie, López-Morales, Mercedes, Lothringer, Joshua D., MacDonald, Ryan J., May, E. M., Mayorga, L. C., Rustamkulov, Zafar, Sing, David K., Sotzen, Kristin S., Valenti, Jeff A., Wakeford, Hannah R.
We present a JWST/NIRCam transmission spectrum from $3.9-5.0$ $\mu$m of the recently-validated sub-Earth GJ 341b ($\mathrm{R_P} = 0.92$ $\mathrm{R_{\oplus}}$, $\mathrm{T_{eq}} = 540$ K) orbiting a nearby bright M1 star ($\mathrm{d} = 10.4$ pc, $\math
Externí odkaz:
http://arxiv.org/abs/2401.06043
Autor:
Zhang, Michael, Hu, Renyu, Inglis, Julie, Dai, Fei, Bean, Jacob L., Knutson, Heather A., Lam, Kristine, Goffo, Elisa, Gandolfi, Davide
Publikováno v:
ApJL 961 L44 (2024)
We present the mid-infrared (5-12 $\mu$m) phase curve of GJ 367b observed by the Mid-Infrared Instrument (MIRI) 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 a M dwar
Externí odkaz:
http://arxiv.org/abs/2401.01400
Autor:
Goffo, Elisa, Gandolfi, Davide, Egger, Jo Ann, Mustill, Alexander J., Albrecht, Simon H., Hirano, Teruyuki, Kochukhov, Oleg, Astudillo-Defru, Nicola, Barragan, Oscar, Serrano, Luisa M., Hatzes, Artie P., Alibert, Yann, Guenther, Eike, Dai, Fei, Lam, Kristine W. F., Csizmadia, Szilárd, Smith, Alexis M. S., Fossati, Luca, Luque, Rafael, Rodler, Florian, Winther, Mark L., Rørsted, Jakob L., Alarcon, Javier, Bonfils, Xavier, Cochran, William D., Deeg, Hans J., Jenkins, Jon M., Korth, Judith, Livingston, John H., Meech, Annabella, Murgas, Felipe, Orell-Miquel, Jaume, Osborne, Hannah L. M., Palle, Enric, Persson, Carina M., Redfield, Seth, Ricker, George R., Seager, Sara, Vanderspek, Roland, Van Eylen, Vincent, Winn, Joshua N.
Publikováno v:
ApJL 955 L3 (2023)
GJ 367 is a bright (V $\approx$ 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 syst
Externí odkaz:
http://arxiv.org/abs/2307.09181
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Autor:
Damiano, Mario, Hu, Renyu, Barclay, Thomas, Zieba, Sebastian, Kreidberg, Laura, Brande, Jonathan, Colon, Knicole D., Covone, Giovanni, Crossfield, Ian, Domagal-Goldman, Shawn D., Fauchez, Thomas J., Fiscale, Stefano, Gallo, Francesco, Gilbert, Emily, Hedges, Christina L., Kite, Edwin S., Kopparapu, Ravi K., Kostov, Veselin B., Morley, Caroline, Mullally, Susan E., Pidhorodetska, Daria, Schlieder, Joshua E., Quintana, Elisa V.
With the increasing number of planets discovered by TESS, the atmospheric characterization of small exoplanets is accelerating. L98-59 is a M-dwarf hosting a multi-planet system, and so far, four small planets have been confirmed. The innermost plane
Externí odkaz:
http://arxiv.org/abs/2210.10008