${rm S{scriptsize IM}BIG}$: The First Cosmological Constraints from Non-Gaussian and Non-Linear Galaxy Clustering

Posted by dbos Tokyo

Kavli Affiliate: David Spergel | First 5 Authors: ChangHoon Hahn, Pablo Lemos, Liam Parker, Bruno Régaldo-Saint Blancard, Michael Eickenberg | Summary: The 3D distribution of galaxies encodes detailed cosmological information on the expansion and growth history of the Universe. We present the first cosmological constraints that exploit non-Gaussian cosmological information on non-linear scales from galaxy […]


Continue.. ${rm S{scriptsize IM}BIG}$: The First Cosmological Constraints from Non-Gaussian and Non-Linear Galaxy Clustering

Field-level simulation-based inference with galaxy catalogs: the impact of systematic effects

Posted by dbos MIT

Kavli Affiliate: Mark Vogelsberger | First 5 Authors: Natalí S. M. de Santi, Francisco Villaescusa-Navarro, L. Raul Abramo, Helen Shao, Lucia A. Perez | Summary: It has been recently shown that a powerful way to constrain cosmological parameters from galaxy redshift surveys is to train graph neural networks to perform field-level likelihood-free inference without imposing […]


Continue.. Field-level simulation-based inference with galaxy catalogs: the impact of systematic effects

Field-level simulation-based inference with galaxy catalogs: the impact of systematic effects

Posted by dbos MIT

Kavli Affiliate: Mark Vogelsberger | First 5 Authors: Natalí S. M. de Santi, Francisco Villaescusa-Navarro, L. Raul Abramo, Helen Shao, Lucia A. Perez | Summary: It has been recently shown that a powerful way to constrain cosmological parameters from galaxy redshift surveys is to train graph neural networks to perform field-level likelihood-free inference without imposing […]


Continue.. Field-level simulation-based inference with galaxy catalogs: the impact of systematic effects

Field-level simulation-based inference with galaxy catalogs: the impact of systematic effects

Posted by dbos MIT

Kavli Affiliate: Mark Vogelsberger | First 5 Authors: Natalí S. M. de Santi, Francisco Villaescusa-Navarro, L. Raul Abramo, Helen Shao, Lucia A. Perez | Summary: It has been recently shown that a powerful way to constrain cosmological parameters from galaxy redshift surveys is to train graph neural networks to perform field-level likelihood-free inference without imposing […]


Continue.. Field-level simulation-based inference with galaxy catalogs: the impact of systematic effects

Field-level simulation-based inference with galaxy catalogs: the impact of systematic effects

Posted by dbos MIT

Kavli Affiliate: Mark Vogelsberger | First 5 Authors: Natalí S. M. de Santi, Francisco Villaescusa-Navarro, L. Raul Abramo, Helen Shao, Lucia A. Perez | Summary: It has been recently shown that a powerful way to constrain cosmological parameters from galaxy redshift surveys is to train graph neural networks to perform field-level likelihood-free inference without imposing […]


Continue.. Field-level simulation-based inference with galaxy catalogs: the impact of systematic effects

Emergence of the Temperature-Density Relation in the Low Density Intergalactic Medium

Posted by dbos Chicago

Kavli Affiliate: Nickolay Y. Gnedin | First 5 Authors: Alexandra Wells, David Robinson, Camille Avestruz, Nickolay Y. Gnedin, | Summary: We examine the evolution of the phase diagram of the low-density intergalactic medium (IGM) during the Epoch of Reionization in simulation boxes with varying reionization histories from the Cosmic Reionization on Computers project. The PDF […]


Continue.. Emergence of the Temperature-Density Relation in the Low Density Intergalactic Medium

Separated twins or just siblings? A multi-planet system around an M dwarf including a cool sub-Neptune

Posted by dbos MIT

Kavli Affiliate: Roland Vanderspek | First 5 Authors: Mallory Harris, Diana Dragomir, Ismael Mireles, Karen A. Collins, Solène Ulmer-Moll | Summary: We report the discovery of two TESS sub-Neptunes orbiting the early M dwarf TOI-904 (TIC 261257684). Both exoplanets, TOI-904 b and c, were initially observed in TESS Sector 12 with twin sizes of ${2.426}_{-0.157}^{+0.163}$ […]


Continue.. Separated twins or just siblings? A multi-planet system around an M dwarf including a cool sub-Neptune

Separated twins or just siblings? A multi-planet system around an M dwarf including a cool sub-Neptune

Posted by dbos MIT

Kavli Affiliate: George R. Ricker | First 5 Authors: Mallory Harris, Diana Dragomir, Ismael Mireles, Karen A. Collins, Solène Ulmer-Moll | Summary: We report the discovery of two TESS sub-Neptunes orbiting the early M dwarf TOI-904 (TIC 261257684). Both exoplanets, TOI-904 b and c, were initially observed in TESS Sector 12 with twin sizes of […]


Continue.. Separated twins or just siblings? A multi-planet system around an M dwarf including a cool sub-Neptune

Separated twins or just siblings? A multi-planet system around an M dwarf including a cool sub-Neptune

Posted by dbos MIT

Kavli Affiliate: George R. Ricker | First 5 Authors: Mallory Harris, Diana Dragomir, Ismael Mireles, Karen A. Collins, Solène Ulmer-Moll | Summary: We report the discovery of two TESS sub-Neptunes orbiting the early M dwarf TOI-904 (TIC 261257684). Both exoplanets, TOI-904 b and c, were initially observed in TESS Sector 12 with twin sizes of […]


Continue.. Separated twins or just siblings? A multi-planet system around an M dwarf including a cool sub-Neptune

Separated twins or just siblings? A multi-planet system around an M dwarf including a cool sub-Neptune

Posted by dbos MIT

Kavli Affiliate: Roland Vanderspek | First 5 Authors: Mallory Harris, Diana Dragomir, Ismael Mireles, Karen A. Collins, Solène Ulmer-Moll | Summary: We report the discovery of two TESS sub-Neptunes orbiting the early M dwarf TOI-904 (TIC 261257684). Both exoplanets, TOI-904 b and c, were initially observed in TESS sector 12 with twin sizes of 2.49R$_oplus$ […]


Continue.. Separated twins or just siblings? A multi-planet system around an M dwarf including a cool sub-Neptune