Zobrazeno 1 - 10
of 172
pro vyhledávání: '"Jofre, E."'
The preparation of a telescope observation time proposal is a recurring activity in observational astronomy. It is a necessary investment of time and effort to obtain data to advance a research topic. Therefore, the success of an observation proposal
Externí odkaz:
http://arxiv.org/abs/2409.05826
Autor:
Martioli, E., Petrucci, R. P., Jofre, E., Hebrard, G., Ghezzi, L., Chew, Y. Gomez Maqueo, Diaz, R. F., Perottoni, H. D., Garcia, L. H., Rapetti, D., Etangs, A. Lecavelier des, de Almeida, L., Arnold, L., Artigau, E., Basant, R., Bean, J. L., Bieryla, A., Boisse, I., Bonfils, X., Brady, M., Cadieux, C., Carmona, A., Cook, N. J., Delfosse, X., Donati, J. -F., Doyon, R., Furlan, E., Howell, S. B., Jenkins, J. M., Kasper, D., Kiefer, F., Latham, D. W., Levine, A. M., Lorenzo-Oliveira, D., Luque, R., McLeod, K., Melendez, J., Moutou, C., Netto, Y., Pritchard, T. A., Rowden, P., Seifahrt, A., Stefansson, G., Sturmer, J., Twicken, D. J
Publikováno v:
A&A 690, A312 (2024)
The sub-Jovian desert is a region in the mass-period and radius-period parameter space, typically encompassing short-period ranges between super-Earths and hot Jupiters, that exhibits an intrinsic dearth of planets. This scarcity is likely shaped by
Externí odkaz:
http://arxiv.org/abs/2409.03704
Autor:
Miquelarena, P., Saffe, C., Flores, M., Petrucci, R., Galarza, J. Yana, Alacoria, J., Arancibia, M. Jaque, Jofré, E., Armijo, K. Montenegro, Gunella, F.
Aims.We conduct a high-precision differential abundance analysis of the remarkable binary system HD 240429/30 (Krios and Kronos, respectively), whose difference in metallicity is one of the highest detected in systems with similar components to date
Externí odkaz:
http://arxiv.org/abs/2406.06705
Autor:
Saffe, C., Miquelarena, P., Alacoria, J., Martioli, E., Flores, M., Arancibia, M. Jaque, Angeloni, R., Jofre, E., Galarza, J. Yana, Gonzalez, E., Collado, A.
Aims. We explore different scenarios to explain the chemical difference found in the remarkable giant-giant binary system HD 138202 + CD-30 12303. For the first time, we suggest how to distinguish these scenarios by taking advantage of the extensive
Externí odkaz:
http://arxiv.org/abs/2402.09278
Autor:
Saffe, C., Alacoria, J., Miquelarena, P., Petrucci, R., Arancibia, M. Jaque, Angeloni, R., Martioli, E., Flores, M., Jofre, E., Collado, A., Gunella, F.
Publikováno v:
A&A 668, A157 (2022)
Am stars are often components of short-period binary systems, where tidal interactions would result in low rotational velocities and help to develop the chemical peculiarities observed. However, the origin of single Am stars and Am stars that belong
Externí odkaz:
http://arxiv.org/abs/2209.14257
Based on high contrast images obtained with the Gemini Planet Imager (GPI), we report the discovery of two point-like sources at angular separations of $\rho\sim0.18''$ and $\rho\sim0.80''$ from the stars HD 29992 and HD 196385. A combined analysis o
Externí odkaz:
http://arxiv.org/abs/2207.07435
Autor:
Schanche, N., Pozuelos, F. J., Günther, M. N., Wells, R. D., Burgasser, A. J., Chinchilla, P., Delrez, L., Ducrot, E., Garcia, L. J., Chew, Y. Gómez Maqueo, Jofré, E., Rackham, B. V., Sebastian, D., Stassun, K. G., Stern, D., Timmermans, M., Barkaoui, K., Belinski, A., Benkhaldoun, Z., Benz, W., Charbonneau, D., Christiansen, Jessie L., Collins, Karen A., Demory, B. -O., Dévora-Pajares, M., de Wit, J., Dragomir, D., Dransfield, G., Furlan, E., Ghachou, M., Gillon, M., Gnilka, C., Gómez-Muñoz, M. A., Guerrero, N., Harris, M., Heng, K., Henze, C. E., Hesse, K., Howell, S. B., Jehin, E., Jenkins, J., Jensen, Eric L. N., Kunimoto, M., Latham, D. W., Lester, K., McLeod, Kim K., Mireles, I., Murray, C. A., Niraula, P., Pedersen, P. P., Queloz, D., Quintana, E. V., Ricker, G., Rudat, A., Sabin, L., Safonov, B., Schroffenegger, U., Scott, N., Seager, S., Strakhov, I., Triaud, A. H. M. J., Vanderspek, R., Vezie, M., Winn, J.
Publikováno v:
A&A 657, A45 (2022)
Thanks to the relative ease of finding and characterizing small planets around M dwarf stars, these objects have become cornerstones in the field of exoplanet studies. The current paucity of planets in long-period orbits around M dwarfs make such obj
Externí odkaz:
http://arxiv.org/abs/2111.01749
Autor:
Demory, B. -O., Pozuelos, F. J., Chew, Y. Gomez Maqueo, Sabin, L., Petrucci, R., Schroffenegger, U., Grimm, S. L., Sestovic, M., Gillon, M., McCormac, J., Barkaoui, K., Benz, W., Bieryla, A., Bouchy, F., Burdanov, A., Collins, K. A., de Wit, J., Dressing, C. D., Garcia, L. J., Giacalone, S., Guerra, P., Haldemann, J., Heng, K., Jehin, E., Jofre, E., Kane, S. R., Lillo-Box, J., Maigne, V., Mordasini, C., Morris, B. M., Niraula, P., Queloz, D., Rackham, B. V., Savel, A. B., Soubkiou, A., Srdoc, G., Stassun, K. G., Triaud, A. H. M. J., Zambelli, R., Ricker, G., Latham, D. W., Seager, S., Winn, J. N., Jenkins, J. M., Calvario-Velasquez, T., Herrera, J. A. Franco, Colorado, E., Zepeda, E. O. Cadena, Figueroa, L., Watson, A. M., Lugo-Ibarra, E. E., Carigi, L., Guisa, G., Herrera, J., Diaz, G. Sierra, Suarez, J. C., Barrado, D., Batalha, N. M., Benkhaldoun, Z., Chontos, A., Dai, F., Essack, Z., Ghachoui, M., Huang, C. X., Huber, D., Isaacson, H., Lissauer, J. J., Morales-Calderon, M., Robertson, P., Roy, A., Twicken, J. D., Vanderburg, A., Weiss, L. M.
Publikováno v:
A&A 642, A49 (2020)
We report the discovery and characterisation of a super-Earth and a sub-Neptune transiting the bright ($K=8.8$), quiet, and nearby (37 pc) M3V dwarf TOI-1266. We validate the planetary nature of TOI-1266 b and c using four sectors of TESS photometry
Externí odkaz:
http://arxiv.org/abs/2009.04317
Autor:
Saffe, C., Miquelarena, P., Alacoria, J., Gonzalez, J. F., Flores, M., Arancibia, M. Jaque, Calvo, D., Jofre, E., Collado, A.
Publikováno v:
A&A 641, A145 (2020)
Context. The detection of planets orbiting chemically peculiar stars is very scarcely known in the literature. Aims. To determine the detailed chemical composition of the remarkable planet host star KELT-17. This object hosts a hot-Jupiter planet wit
Externí odkaz:
http://arxiv.org/abs/2007.14210
Autor:
Jofré, E., Almenara, J. M., Petrucci, R., Díaz, R. F., Chew, Y. Gómez Maqueo, Martioli, E., Ramírez, I., García, L., Saffe, C., Canul, E. F., Buccino, A., Gómez, M., Hilario, E. Moreno
Publikováno v:
A&A 634, A29 (2020)
(abridged) Kepler-278 and Kepler-391 are two of the three evolved stars known to date on the RGB to host multiple short-period transiting planets. Moreover, these planets are among the smallest discovered around RGB stars. Here we present a detailed
Externí odkaz:
http://arxiv.org/abs/1912.10278