Zobrazeno 1 - 10
of 20
pro vyhledávání: '"Jessi Cisewski-Kehe"'
Autor:
Jessi Cisewski-Kehe, Brittany Terese Fasy, Wojciech Hellwing, Mark R. Lovell, Paweł Drozda, Mike Wu
The spatial distribution of galaxies at sufficiently small scales will encode information about the identity of the dark matter. We develop a novel description of the halo distribution using persistent homology summaries, in which collections of poin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2b7bbf808a5338ba0f62adf7ef4da1ac
http://arxiv.org/abs/2204.00443
http://arxiv.org/abs/2204.00443
Autor:
Lily L. Zhao, Debra A. Fischer, Eric B. Ford, Alex Wise, Michaël Cretignier, Suzanne Aigrain, Oscar Barragan, Megan Bedell, Lars A. Buchhave, João D. Camacho, Heather M. Cegla, Jessi Cisewski-Kehe, Andrew Collier Cameron, Zoe L. de Beurs, Sally Dodson-Robinson, Xavier Dumusque, João P. Faria, Christian Gilbertson, Charlotte Haley, Justin Harrell, David W. Hogg, Parker Holzer, Ancy Anna John, Baptiste Klein, Marina Lafarga, Florian Lienhard, Vinesh Maguire-Rajpaul, Annelies Mortier, Belinda Nicholson, Michael L. Palumbo, Victor Ramirez Delgado, Christopher J. Shallue, Andrew Vanderburg, Pedro T. P. Viana, Jinglin Zhao, Norbert Zicher, Samuel H. C. Cabot, Gregory W. Henry, Rachael M. Roettenbacher, John M. Brewer, Joe Llama, Ryan R. Petersburg, Andrew E. Szymkowiak
Publikováno v:
Zhao, L L, Fischer, D A, Ford, E B, Wise, A, Cretignier, M, Aigrain, S, Barragan, O, Bedell, M, Buchhave, L A, Camacho, J D, Cegla, H M, Cisewski-Kehe, J, Collier Cameron, A, De Beurs, Z L, Dodson-Robinson, S, Dumusque, X, Faria, J P, Gilbertson, C, Haley, C, Harrell, J, Hogg, D W, Holzer, P, John, A A, Klein, B, Lafarga, M, Lienhard, F, Maguire-Rajpaul, V, Mortier, A, Nicholson, B, Palumbo, M L, Ramirez Delgado, V, Shallue, C J, Vanderburg, A, Viana, P T P, Zhao, J, Zicher, N, Cabot, S H C, Henry, G W, Roettenbacher, R M, Brewer, J M, Llama, J, Petersburg, R R & Szymkowiak, A E 2022, ' The EXPRES Stellar Signals Project II. State of the Field in Disentangling Photospheric Velocities ', Astronomical Journal, vol. 163, no. 4, 171 . https://doi.org/10.3847/1538-3881/ac5176
Measured spectral shifts due to intrinsic stellar variability (e.g., pulsations, granulation) and activity (e.g., spots, plages) are the largest source of error for extreme precision radial velocity (EPRV) exoplanet detection. Several methods are des
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6b6df3176ed325654ae55da84ea8bc7b
http://wrap.warwick.ac.uk/163805/7/WRAP-The-EXPRES-Stellar-Signals-Project-II-State-field-disentangling-photospheric-velocities-2022.pdf
http://wrap.warwick.ac.uk/163805/7/WRAP-The-EXPRES-Stellar-Signals-Project-II-State-field-disentangling-photospheric-velocities-2022.pdf
Publikováno v:
Journal of Statistical Computation and Simulation. 91:1155-1174
Finite mixture models are used in statistics and other disciplines, but inference for mixture models is challenging due, in part, to the multimodality of the likelihood function and the so-called label switching problem. We propose extensions of the
Publikováno v:
Journal of Applied and Computational Topology. 4:211-262
One of the primary areas of interest in applied algebraic topology is persistent homology, and, more specifically, the persistence diagram. Persistence diagrams have also become objects of interest in topological data analysis. However, persistence d
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 492:4019-4032
Trend filtering---first introduced into the astronomical literature in Paper I of this series---is a state-of-the-art statistical tool for denoising one-dimensional signals that possess varying degrees of smoothness. In this work, we demonstrate the
Publikováno v:
The Annals of Applied Statistics. 15
As the first successful technique used to detect exoplanets orbiting distant stars, the radial velocity method aims to detect a periodic Doppler shift in a stellar spectrum due to the star’s motion along the line sight. We introduce a new, mathemat
Publikováno v:
CHANCE. 32:6-13
Originally a speculative branch of natural philosophy, cosmology is an ancient field concerned with answering some of the big-picture questions about the origin and evolution of our universe. Our m...
Autor:
Xin Xu, Jessi Cisewski-Kehe
Publikováno v:
Foundations of Data Science. 1:227-247
Persistent homology is a tool within topological data analysis to detect different dimensional holes in a dataset. The boundaries of the empty territories (i.e., holes) are not well-defined and each has multiple representations. The proposed method,
Autor:
Eric B. Ford, Parker H. Holzer, Debra A. Fischer, Jessi Cisewski-Kehe, Lily Zhao, Christian Gilbertson
In the search for planets orbiting distant stars the presence of stellar activity in the atmospheres of observed stars can obscure the radial velocity signal used to detect such planets. Furthermore, this stellar activity contamination is set by the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ac45d187df5c0980e6b68938379d6907
Publikováno v:
Electron. J. Statist. 13, no. 1 (2019), 1580-1607
Accurate specification of a likelihood function is becoming increasingly difficult in many inference problems in astronomy. As sample sizes resulting from astronomical surveys continue to grow, deficiencies in the likelihood function lead to larger b
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a16324751428c0d1acfd4fb37ec0dd4b
http://arxiv.org/abs/1904.11306
http://arxiv.org/abs/1904.11306