Early r-process Enrichment and Hierarchical Assembly Across the Sagittarius Dwarf Galaxy

Kavli Affiliate: Anna Frebel | First 5 Authors: Xiaowei Ou, Alexander Yelland, Anirudh Chiti, Anna Frebel, Guilherme Limberg | Summary: Dwarf galaxies like Sagittarius (Sgr) provide a unique window into the early stages of galactic chemical evolution, particularly through their metal-poor stars. By studying the chemical abundances of stars in the Sgr core and tidal […]


Continue.. Early r-process Enrichment and Hierarchical Assembly Across the Sagittarius Dwarf Galaxy

Introducing the AIDA-TNG project: galaxy formation in alternative dark matter models

Kavli Affiliate: Mark Vogelsberger | First 5 Authors: Giulia Despali, Lauro Moscardini, Dylan Nelson, Annalisa Pillepich, Volker Springel | Summary: We introduce the AIDA-TNG project, a suite of cosmological magnetohydrodynamic simulations that simultaneously model galaxy formation and different variations of the underlying dark matter model. We consider the standard cold dark matter model and five […]


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GLIMPSE: An ultra-faint $simeq$ 10$^{5}$ $M_{odot}$ Pop III Galaxy Candidate and First Constraints on the Pop III UV Luminosity Function at $zsimeq6-7$

Kavli Affiliate: Anna Frebel | First 5 Authors: Seiji Fujimoto, Rohan P. Naidu, John Chisholm, Hakim Atek, Ryan Endsley | Summary: Detecting the first generation of stars, Population III (PopIII), has been a long-standing goal in astrophysics, yet they remain elusive even in the JWST era. Here we present a novel NIRCam-based selection method for […]


Continue.. GLIMPSE: An ultra-faint $simeq$ 10$^{5}$ $M_{odot}$ Pop III Galaxy Candidate and First Constraints on the Pop III UV Luminosity Function at $zsimeq6-7$

11 New Transiting Brown Dwarfs and Very Low Mass Stars from TESS

Kavli Affiliate: Avi Shporer | First 5 Authors: Noah Vowell, Joseph E. Rodriguez, David W. Latham, Samuel N. Quinn, Jack Schulte | Summary: We present the discovery of 11 new transiting brown dwarfs and low-mass M-dwarfs from NASA’s TESS mission: TOI-2844, TOI-3122, TOI-3577, TOI-3755, TOI-4462, TOI-4635, TOI-4737, TOI-4759, TOI-5240, TOI-5467, and TOI-5882. They consist of […]


Continue.. 11 New Transiting Brown Dwarfs and Very Low Mass Stars from TESS

11 New Transiting Brown Dwarfs and Very Low Mass Stars from TESS

Kavli Affiliate: Avi Shporer | First 5 Authors: Noah Vowell, Joseph E. Rodriguez, David W. Latham, Samuel N. Quinn, Jack Schulte | Summary: We present the discovery of 11 new transiting brown dwarfs and low-mass M-dwarfs from NASA’s TESS mission: TOI-2844, TOI-3122, TOI-3577, TOI-3755, TOI-4462, TOI-4635, TOI-4737, TOI-4759, TOI-5240, TOI-5467, and TOI-5882. They consist of […]


Continue.. 11 New Transiting Brown Dwarfs and Very Low Mass Stars from TESS

Cyclical accretion regime change in the slow X-ray pulsar 4U 0114+65 observed with Chandra

Kavli Affiliate: Norbert Schulz | First 5 Authors: Graciela Sanjurjo-Ferrín, Jose Miguel Torrejón, Konstantin Postnov, Michael Nowak, Jose Joaquín Rodes-Roca | Summary: 4U 0114+65 is a high-mass X-ray binary system formed by the luminous supergiant B1Ia, known as V{*} V662 Cas, and one of the slowest rotating neutron stars (NS) with a spin period of […]


Continue.. Cyclical accretion regime change in the slow X-ray pulsar 4U 0114+65 observed with Chandra

Cold Gas and Star Formation in the Phoenix Cluster with JWST

Kavli Affiliate: Michael McDonald | First 5 Authors: Michael Reefe, Michael McDonald, Marios Chatzikos, Jerome Seebeck, Richard Mushotzky | Summary: We present integral field unit observations of the Phoenix Cluster with the JWST Mid-infrared Instrument’s Medium Resolution Spectrometer (MIRI/MRS). We focus this study on the molecular gas, dust, and star formation in the brightest cluster […]


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Cold Gas and Star Formation in the Phoenix Cluster with JWST

Kavli Affiliate: Michael McDonald | First 5 Authors: Michael Reefe, Michael McDonald, Marios Chatzikos, Jerome Seebeck, Richard Mushotzky | Summary: We present integral field unit observations of the Phoenix Cluster with the JWST Mid-infrared Instrument’s Medium Resolution Spectrometer (MIRI/MRS). We focus this study on the molecular gas, dust, and star formation in the brightest cluster […]


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Long-lived Habitable Zones around White Dwarfs undergoing Neon-22 Distillation

Kavli Affiliate: Andrew Vanderburg | First 5 Authors: Andrew Vanderburg, Antoine Bédard, Juliette C. Becker, Simon Blouin, | Summary: White dwarf stars have attracted considerable attention in the past 15 years as hosts for potentially habitable planets, but their low luminosity and continuous cooling are major challenges for habitability. Recently, astronomers have found that about […]


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LensNet: Enhancing Real-time Microlensing Event Discovery with Recurrent Neural Networks in the Korea Microlensing Telescope Network

Kavli Affiliate: Andrew Vanderburg | First 5 Authors: Javier Viaña, Kyu-Ha Hwang, Zoë de Beurs, Jennifer C. Yee, Andrew Vanderburg | Summary: Traditional microlensing event vetting methods require highly trained human experts, and the process is both complex and time-consuming. This reliance on manual inspection often leads to inefficiencies and constrains the ability to scale […]


Continue.. LensNet: Enhancing Real-time Microlensing Event Discovery with Recurrent Neural Networks in the Korea Microlensing Telescope Network