TESS Spots a Super-Puff: The Remarkably Low Density of TOI-1420b

Kavli Affiliate: Sara Seager | First 5 Authors: Stephanie Yoshida, Shreyas Vissapragada, David W. Latham, Allyson Bieryla, Daniel P. Thorngren | Summary: We present the discovery of TOI-1420b, an exceptionally low-density ($rho = 0.08pm0.02$ g cm$^{-3}$) transiting planet in a $P = 6.96$ day orbit around a late G dwarf star. Using transit observations from […]


Continue.. TESS Spots a Super-Puff: The Remarkably Low Density of TOI-1420b

The thesan project: public data release of radiation-hydrodynamic simulations matching reionization-era JWST observations

Kavli Affiliate: Mark Vogelsberger | First 5 Authors: Enrico Garaldi, Rahul Kannan, Aaron Smith, Josh Borrow, Mark Vogelsberger | Summary: Cosmological simulations serve as invaluable tools for understanding the Universe. However, the technical complexity and substantial computational resources required to generate such simulations often limit their accessibility within the broader research community. Notable exceptions exist, […]


Continue.. The thesan project: public data release of radiation-hydrodynamic simulations matching reionization-era JWST observations

Transient Corotating Clumps Around Adolescent Low-Mass Stars From Four Years of TESS

Kavli Affiliate: Saul Rappaport | First 5 Authors: Luke G. Bouma, Rahul Jayaraman, Saul Rappaport, Luisa M. Rebull, Lynne A. Hillenbrand | Summary: Complex periodic variables (CPVs) are stars that exhibit highly structured and periodic optical light curves. Previous studies have indicated that these stars are typically disk-free pre-main-sequence M dwarfs with rotation periods ranging […]


Continue.. Transient Corotating Clumps Around Adolescent Low-Mass Stars From Four Years of TESS

Transient Corotating Clumps Around Adolescent Low-Mass Stars From Four Years of TESS

Kavli Affiliate: Saul Rappaport | First 5 Authors: Luke G. Bouma, Rahul Jayaraman, Saul Rappaport, Luisa M. Rebull, Lynne A. Hillenbrand | Summary: Complex periodic variables (CPVs) are stars that exhibit highly structured and periodic optical light curves. Previous studies have indicated that these stars are typically disk-free pre-main-sequence M dwarfs with rotation periods ranging […]


Continue.. Transient Corotating Clumps Around Adolescent Low-Mass Stars From Four Years of TESS

The Cosmic Ultraviolet Baryon Survey: Empirical Characterization of Turbulence in the Cool Circumgalactic Medium

Kavli Affiliate: Robert A. Simcoe | First 5 Authors: Hsiao-Wen Chen, Zhijie Qu, Michael Rauch, Mandy C. Chen, Fakhri S. Zahedy | Summary: This paper reports the first measurement of the relationship between turbulent velocity and cloud size in the diffuse circumgalactic medium (CGM) in typical galaxy halos at redshift z~0.4-1. Through spectrally-resolved absorption profiles […]


Continue.. The Cosmic Ultraviolet Baryon Survey: Empirical Characterization of Turbulence in the Cool Circumgalactic Medium

Nested solitons in two-field fuzzy dark matter

Kavli Affiliate: Mark Vogelsberger | First 5 Authors: Hoang Nhan Luu, Philip Mocz, Mark Vogelsberger, Simon May, Josh Borrow | Summary: Dark matter as scalar particles consisting of multiple species is well motivated in string theory where axion fields are ubiquitous. A two-field fuzzy dark matter (FDM) model features two species of ultralight axion particles […]


Continue.. Nested solitons in two-field fuzzy dark matter

Nested solitons in two-field fuzzy dark matter

Kavli Affiliate: Mark Vogelsberger | First 5 Authors: Hoang Nhan Luu, Philip Mocz, Mark Vogelsberger, Simon May, Josh Borrow | Summary: Dark matter as scalar particles consisting of multiple species is well motivated in string theory where axion fields are ubiquitous. A two-field fuzzy dark matter (FDM) model features two species of ultralight axion particles […]


Continue.. Nested solitons in two-field fuzzy dark matter

Ambiguity, Invisibility, and Negativity

Kavli Affiliate: Frank Wilczek | First 5 Authors: Frank Wilczek, , , , | Summary: Many widely different problems have a common mathematical structure wherein limited knowledge lead to ambiguity that can be captured conveniently using a concept of invisibility that requires the introduction of negative values for quantities that are inherently positive. Here I […]


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EIGER V. Characterizing the Host Galaxies of Luminous Quasars at $zgtrsim6$

Kavli Affiliate: Robert A. Simcoe | First 5 Authors: Minghao Yue, Anna-Christina Eilers, Robert A. Simcoe, Ruari Mackenzie, Jorryt Matthee | Summary: We report {em JWST}/NIRCam measurements of quasar host galaxy emissions and supermassive black hole (SMBH) masses for six quasars at $5.9<z<7.1$ in the textit{Emission-line galaxies and Intergalactic Gas in the Epoch of Reionization} […]


Continue.. EIGER V. Characterizing the Host Galaxies of Luminous Quasars at $zgtrsim6$

EIGER V. Characterizing the Host Galaxies of Luminous Quasars at $zgtrsim6$

Kavli Affiliate: Robert A. Simcoe | First 5 Authors: Minghao Yue, Anna-Christina Eilers, Robert A. Simcoe, Ruari Mackenzie, Jorryt Matthee | Summary: We report {em JWST}/NIRCam measurements of quasar host galaxy emissions and supermassive black hole (SMBH) masses for six quasars at $5.9<z<7.1$ in the textit{Emission-line galaxies and Intergalactic Gas in the Epoch of Reionization} […]


Continue.. EIGER V. Characterizing the Host Galaxies of Luminous Quasars at $zgtrsim6$