Zobrazeno 1 - 10
of 511
pro vyhledávání: '"Xu, Siyi"'
Autor:
Aguilera-Gómez, Claudia, Rogers, Laura K., Bonsor, Amy, Jofré, Paula, Blouin, Simon, Shorttle, Oliver, Buchan, Andrew M., Li, Yuqi, Xu, Siyi
Planets form from the same cloud of molecular gas and dust as their host stars. Confirming if planetary bodies acquire the same refractory element composition as their natal disc during formation, and how efficiently volatile elements are incorporate
Externí odkaz:
http://arxiv.org/abs/2411.03454
We performed a chemical analysis of the asteroid-bearing white dwarf WD 1145+017 using optical and ultraviolet spectroscopic data from 25 epochs between 2015 and 2023. We present an updated gas disk model with improved opacity calculations and temper
Externí odkaz:
http://arxiv.org/abs/2410.10948
Autor:
Limbach, Mary Anne, Vanderburg, Andrew, Venner, Alexander, Blouin, Simon, Stevenson, Kevin B., MacDonald, Ryan J., Jenkins, Sydney, Bowens-Rubin, Rachel, Soares-Furtado, Melinda, Morley, Caroline, Janson, Markus, Debes, John, Xu, Siyi, Kleisioti, Evangelia, Kenworthy, Matthew, Butler, Paul, Crane, Jeffrey D., Osip, Dave, Shectman, Stephen, Teske, Johanna
The MIRI Exoplanets Orbiting White dwarfs (MEOW) Survey is a cycle 2 JWST program to search for exoplanets around dozens of nearby white dwarfs via infrared excess and direct imaging. In this paper, we present the detection of mid-infrared excess at
Externí odkaz:
http://arxiv.org/abs/2408.16813
Autor:
Deibert, Emily K., Langeveld, Adam B., Young, Mitchell E., Flagg, Laura, Turner, Jake D., Smith, Peter C. B., de Mooij, Ernst J. W., Jayawardhana, Ray, Chiboucas, Kristin, Gamen, Roberto, Hayes, Christian R., Heo, Jeong-Eun, Jeong, Miji, Kalari, Venu, Martioli, Eder, Placco, Vinicius M., Xu, Siyi, Diaz, Ruben, Gomez-Jimenez, Manuel, Quiroz, Carlos, Ruiz-Carmona, Roque, Simpson, Chris, McConnachie, Alan W., Pazder, John, Burley, Gregory, Ireland, Michael, Waller, Fletcher, Berg, Trystyn A. M., Robertson, J. Gordon, Jones, David O., Labrie, Kathleen, Ridgway, Susan, Thomas-Osip, Joanna
With high equilibrium temperatures and tidally locked rotation, ultra-hot Jupiters (UHJs) are unique laboratories within which to probe extreme atmospheric physics and chemistry. In this paper, we present high-resolution dayside spectroscopy of the U
Externí odkaz:
http://arxiv.org/abs/2407.11281
Autor:
Gan, Tianjun, Wang, Sharon X., Dai, Fei, Winn, Joshua N., Mao, Shude, Xu, Siyi, Pallé, Enric, Bean, Jacob L., Brady, Madison, Brown, Nina, Lu, Cicero, Luque, Rafael, Mocnik, Teo, Seifahrt, Andreas, Stefánsson, Guðmundur K.
Measuring the obliquities of stars hosting giant planets may shed light on the dynamical history of planetary systems. Significant efforts have been made to measure the obliquities of FGK stars with hot Jupiters, mainly based on observations of the R
Externí odkaz:
http://arxiv.org/abs/2406.12798
White dwarf planetary systems provide a unique way to measure the bulk composition of exoplanetary material. Extrasolar asteroids/comets/moons which have survived the evolution of their host star can end up in the atmosphere of the white dwarf. Aster
Externí odkaz:
http://arxiv.org/abs/2404.15425
Autor:
Casewell, S. L., Debes, J., Dupuy, T. J., Dufour, P., Bonsor, A., Rebassa-Mansergas, A., Murillo-Ojeda, R., French, J. R., Alexander, R. D., Xu, Siyi, Martin, E., Manjavacas, E.
We present new results on PHL 5038AB, a widely separated binary system composed of a white dwarf and a brown dwarf, refining the white and brown dwarf parameters and determining the binary separation to be $66^{+12}_{-24}$~AU. New spectra of the whit
Externí odkaz:
http://arxiv.org/abs/2404.05488
Autor:
Xu, Siyi, Yeh, Sherry, Rogers, Laura. K., Steele, Amy, Dennihy, Erik, Doyle, Alexandra E., Dufour, P., Klein, Beth L., Manser, Christopher J., Melis, Carl, Wang, Tinggui, Weinberger, Alycia J.
The chemical composition of an extrasolar planet is fundamental to its formation, evolution and habitability. In this study, we explore a new way to measure the chemical composition of the building blocks of extrasolar planets, by measuring the gas c
Externí odkaz:
http://arxiv.org/abs/2403.15794
Autor:
Manser, Christopher J., Izquierdo, Paula, Gänsicke, Boris T., Swan, Andrew, Koester, Detlev, Robert, Akshay, Xu, Siyi, Inight, Keith, Amroota, Ben, Fusillo, N. P. Gentile, Koposov, Sergey E., Kim, Bokyoung, Dey, Arjun, Prieto, Carlos Allende, Aguilar, J., Ahlen, S., Blum, R., Brooks, D., Claybaugh, T., Cooper, A. P., Dawson, K., de la Macorra, A., Doel, P., Forero-Romero, J. E., Gaztañaga, E., Gontcho, S. Gontcho A, Honscheid, K., Kisner, T., Kremin, A., Lambert, A., Landriau, M., Guillou, L. Le, Levi, Michael E., Li, T. S., Meisner, A., Miquel, R., Moustakas, J., Nie, J., Palanque-Delabrouille, N., Percival, W. J., Poppett, C., Prada, F., Rezaie, M., Rossi, G., Sanchez, E., Schlafly, E. F., Schlegel, D., Schubnell, M., Seo, H., Silber, J., Tarlé, G., Weaver, B. A., Zhou, Z., Zou, H.
The Early Data Release (EDR) of the Dark Energy Spectroscopic Instrument (DESI) comprises spectroscopy obtained from 2020 December 14 to 2021 June 10. White dwarfs were targeted by DESI both as calibration sources and as science targets and were sele
Externí odkaz:
http://arxiv.org/abs/2402.18641
Autor:
Manser, Christopher J., Gänsicke, Boris T., Izquierdo, Paula, Swan, Andrew, Najita, Joan, Rockosi, C., Carrillo, Andreia, Kim, Bokyoung, Xu, Siyi, Dey, Arjun, Aguilar, J., Ahlen, S., Blum, R., Brooks, D., Claybaugh, T., Dawson, K., de la Macorra, A., Doel, P., Gaztañaga, E., Gontcho, S. Gontcho A, Honscheid, K., Kehoe, R., Kremin, A., Landriau, M., Guillou, L. Le, Levi, Michael E., Li, T. S., Meisner, A., Miquel, R., Nie, J., Rezaie, M., Rossi, G., Sanchez, E., Schubnell, M., Tarlé, G., Weaver, B. A., Zhou, Z., Zou, H.
There is overwhelming evidence that white dwarfs host planetary systems; revealed by the presence, disruption, and accretion of planetary bodies. A lower limit on the frequency of white dwarfs that host planetary material has been estimated to be rou
Externí odkaz:
http://arxiv.org/abs/2402.18644