A Population Analysis of 20 Exoplanets Observed from the Optical to the Near-infrared Wavelengths with HST: Evidence for Widespread Stellar Contamination

Autor: Saba, Arianna, Thompson, Alexandra, Yip, Kai Hou, Ma, Sushuang, Tsiaras, Angelos, Al-Refaie, Ahmed Faris, Tinetti, Giovanna

We present a population study of 20 exoplanets, ranging from Neptune-like to inflated hot-Jupiter planets, observed during transit with the STIS and WFC3 instruments aboard the Hubble Space Telescope. To obtain spectral information from the near-UV t

Externí odkaz: http://arxiv.org/abs/2404.15505

Characterising a World Within the Hot Neptune Desert: Transit Observations of LTT 9779 b with HST WFC3

Autor: Edwards, Billy, Changeat, Quentin, Tsiaras, Angelos, Allan, Andrew, Behr, Patrick, Hagey, Simone R., Himes, Michael D., Ma, Sushuang, Stassun, Keivan G., Thomas, Luis, Thompson, Alexandra, Boley, Aaron, Booth, Luke, Bouwman, Jeroen, France, Kevin, Lowson, Nataliea, Meech, Annabella, Phillips, Caprice L., Vidotto, Aline A., Yip, Kai Hou, Bieger, Michelle, Gressier, Amelie, Janin, Estelle, Jiang, Ing-Guey, Leonardi, Pietro, Sarkar, Subhajit, Skaf, Nour, Taylor, Jake, Yang, Ming, Ward-Thompson, Derek

We present an atmospheric analysis of LTT 9779 b, a rare planet situated in the hot Neptune desert, that has been observed with HST WFC3 G102 and G141. The combined transmission spectrum, which covers 0.8 - 1.6 $\mu$m, shows a gradual increase in tra

Externí odkaz: http://arxiv.org/abs/2306.13645

Early Release Science of the exoplanet WASP-39b with JWST NIRISS

Autor: Feinstein, Adina D., Radica, Michael, Welbanks, Luis, Murray, Catriona Anne, Ohno, Kazumasa, Coulombe, Louis-Philippe, Espinoza, Néstor, Bean, Jacob L., Teske, Johanna K., Benneke, Björn, Line, Michael R., Rustamkulov, Zafar, Saba, Arianna, Tsiaras, Angelos, Barstow, Joanna K., Fortney, Jonathan J., Gao, Peter, Knutson, Heather A., MacDonald, Ryan J., Mikal-Evans, Thomas, Rackham, Benjamin V., Taylor, Jake, Parmentier, Vivien, Batalha, Natalie M., Berta-Thompson, Zachory K., Carter, Aarynn L., Changeat, Quentin, Santos, Leonardo A. Dos, Gibson, Neale P., Goyal, Jayesh M, Kreidberg, Laura, López-Morales, Mercedes, Lothringer, Joshua D, Miguel, Yamila, Molaverdikhani, Karan, Moran, Sarah E., Morello, Giuseppe, Mukherjee, Sagnick, Sing, David K., Stevenson, Kevin B., Wakeford, Hannah R., Ahrer, Eva-Maria, Alam, Munazza K., Alderson, Lili, Allen, Natalie H., Batalha, Natasha E., Bell, Taylor J., Blecic, Jasmina, Brande, Jonathan, Caceres, Claudio, Casewell, S. L., Chubb, Katy L., Crossfield, Ian J. M., Crouzet, Nicolas, Cubillos, Patricio E., Decin, Leen, Désert, Jean-Michel, Harrington, Joseph, Heng, Kevin, Henning, Thomas, Iro, Nicolas, Kempton, Eliza M. -R., Kendrew, Sarah, Kirk, James, Krick, Jessica, Lagage, Pierre-Olivier, Lendl, Monika, Mancini, Luigi, Mansfield, Megan, May, E. M., Mayne, N. J., Nikolov, Nikolay K., Palle, Enric, de la Roche, Dominique J. M. Petit dit, Piaulet, Caroline, Powell, Diana, Redfield, Seth, Rogers, Laura K., Roman, Michael T., Roy, Pierre-Alexis, Nixon, Matthew C., Schlawin, Everett, Tan, Xianyu, Tremblin, P., Turner, Jake D., Venot, Olivia, Waalkes, William C., Wheatley, Peter J., Zhang, Xi

Transmission spectroscopy provides insight into the atmospheric properties and consequently the formation history, physics, and chemistry of transiting exoplanets. However, obtaining precise inferences of atmospheric properties from transmission spec

Externí odkaz: http://arxiv.org/abs/2211.10493

ExoClock Project III: 450 new exoplanet ephemerides from ground and space observations

Autor: Kokori, A., Tsiaras, A., Edwards, B., Jones, A., Pantelidou, G., Tinetti, G., Bewersdorff, L., Iliadou, A., Jongen, Y., Lekkas, G., Nastasi, A., Poultourtzidis, E., Sidiropoulos, C., Walter, F., Wünsche, A., Abraham, R., Agnihotri, V. K., Albanesi, R., Arce-Mansego, E., Arnot, D., Audejean, M., Aumasson, C., Bachschmidt, M., Baj, G., Barroy, P. R., Belinski, A. A., Bennett, D., Benni, P., Bernacki, K., Betti, L., Biagini, A., Bosch, P., Brandebourg, P., Brát, L., Bretton, M., Brincat, S. M., Brouillard, S., Bruzas, A., Bruzzone, A., Buckland, R. A., Caló, M., Campos, F., Carreno, A., Rodrigo, J. -A. Carrion, Casali, R., Casalnuovo, G., Cataneo, M., Chang, C. -M., Changeat, L., Chowdhury, V., Ciantini, R., Cilluffo, M., Coliac, J. -F., Conzo, G., Correa, M., Coulon, G., Crouzet, N., Crow, M. V., Curtis, I., Daniel, D., Dawes, S., Dauchet, B., Deldem, M., Deligeorgopoulos, D., Dransfield, G., Dymock, R., Eenmäe, T., Evans, P., Esseiva, N., Falco, C., Farfán, R. G., Fernández-Lajús, E., Ferratfiat, S., Ferreira, S. L., Ferretti, A., Fiołka, J., Fowler, M., Futcher, S. R., Gabellini, D., Gainey, T., Gaitan, J., Gajdoš, P., García-Sánchez, A., Garlitz, J., Gillier, C., Gison, C., Horta, F. Grau, Grivas, G., Gonzales, J., Gorshanov, D., Guerra, P., Guillot, T., Haswell, C. A., Haymes, T., Hentunen, V. -P., Hills, K., Hose, K., Humbert, T., Hurter, F., Hynek, T., Irzyk, M., Jacobsen, J., Jannetta, A. L., Johnson, K., Jóźwik-Wabik, P., Kaeouach, A. E., Kang, W., Kiiskinen, H., Kim, T., Kivila, Ü., Koch, B., Kolb, U., Kučáková, H., Lai, S. -P., Laloum, D., Lasota, S., Lewis, L. A., Liakos, G. -I., Libotte, F., Lopresti, C., Lomoz, F., Majewski, R., Malcher, A., Mallonn, M., Mannucci, M., Marchini, A., Mari, J. -M., Marino, A., Marino, G., Mario, J. -C., Marquette, J. -B., Martínez-Bravo, F. A., Mašek, M., Matassa, P., Michel, P., Michelet, J., Miller, M., Miny, E., Mollier, T., Molina, D., Monteleone, B., Montigiani, N., Morales-Aimar, M., Mortari, F., Morvan, M., Mugnai, L. V., Murawski, G., Naponiello, L., Naves, R., Naudin, J. -L., Néel, D., Neito, R., Neveu, S., Noschese, A., Öğmen, Y., Ohshima, O., Orbanic, Z., Pace, E. P., Pantacchini, C., Paschalis, N. I., Pereira, C., Peretto, I., Perroud, V., Phillips, M., Pintr, P., Pioppa, J. -B., Plazas, J., Poelarends, A. J., Popowicz, A., Purcell, J., Quinn, N., Raetz, M., Rees, D., Regembal, F., Rocchetto, M., Rocci, P. -F., Rockenbauer, M., Roth, R., Rousselot, L., Rubia, X., Ruocco, N., Russo, E., Salisbury, M., Salvaggio, F., Santos, A., Savage, J., Scaggiante, F., Sedita, D., Shadick, S., Silva, A. F., Sioulas, N., Školník, V., Smith, M., Smolka, M., Solmaz, A., Stanbury, N., Stouraitis, D., Tan, T. -G., Theusner, M., Thurston, G., Tifner, F. -P., Tomacelli, A., Tomatis, A., Trnka, J., Tylšar, M., Valeau, P., Vignes, J. -P., Villa, A., Sureda, A. Vives, Vora, K., Vrašťák, M., Walliang, D., Wenzel, B., Wright, D. E., Zambelli, R., Zhang, M., Zíbar, M.

The ExoClock project has been created with the aim of increasing the efficiency of the Ariel mission. It will achieve this by continuously monitoring and updating the ephemerides of Ariel candidates over an extended period, in order to produce a cons

Externí odkaz: http://arxiv.org/abs/2209.09673

Five key exoplanet questions answered via the analysis of 25 hot Jupiter atmospheres in eclipse

Autor: Changeat, Quentin, Edwards, Billy, Al-Refaie, Ahmed F., Tsiaras, Angelos, Skinner, Jack W., Cho, James Y-K, Yip, Kai H., Anisman, Lara, Ikoma, Masahiro, Bieger, Michelle F., Venot, Olivia, Shibata, Sho, Waldmann, Ingo P., Tinetti, Giovanna

Publikováno v: ApJS 260 3 (2022)

Population studies of exoplanets are key to unlocking their statistical properties. So far the inferred properties have been mostly limited to planetary, orbital and stellar parameters extracted from, e.g., Kepler, radial velocity, and GAIA data. Mor

Externí odkaz: http://arxiv.org/abs/2204.11729