Asteroseismic Study of Subgiants and Giants of the Open Cluster M67 using Kepler/K2: Expanded Sample and Precise Masses

Kavli Affiliate: Andrew Vanderburg | First 5 Authors: Claudia Reyes, Dennis Stello, Marc Hon, Yaguang Li, Timothy R. Bedding | Summary: Sparked by the asteroseismic space revolution, ensemble studies have been used to produce empirical relations linking observed seismic properties and fundamental stellar properties. Cluster stars are particularly valuable because they have the same metallicity, […]


Continue.. Asteroseismic Study of Subgiants and Giants of the Open Cluster M67 using Kepler/K2: Expanded Sample and Precise Masses

Asteroseismic Study of Subgiants and Giants of the Open Cluster M67 using Kepler/K2: Expanded Sample and Precise Masses

Kavli Affiliate: Andrew Vanderburg | First 5 Authors: Claudia Reyes, Dennis Stello, Marc Hon, Yaguang Li, Timothy R. Bedding | Summary: Sparked by the asteroseismic space revolution, ensemble studies have been used to produce empirical relations linking observed seismic properties and fundamental stellar properties. Cluster stars are particularly valuable because they have the same metallicity, […]


Continue.. Asteroseismic Study of Subgiants and Giants of the Open Cluster M67 using Kepler/K2: Expanded Sample and Precise Masses

TESSELLATE: Piecing Together the Variable Sky With TESS

Kavli Affiliate: Michael M. Fausnaugh | First 5 Authors: Hugh Roxburgh, Ryan Ridden-Harper, Andrew Moore, Clarinda Montilla, Brayden Leicester | Summary: We present TESSELLATE, a dedicated pipeline for performing an untargeted search documenting all variable phenomena captured by the TESS space telescope. Building on the TESSreduce difference imaging pipeline, TESSELLATE extracts calibrated and reduced photometric […]


Continue.. TESSELLATE: Piecing Together the Variable Sky With TESS

Are Sparse Autoencoders Useful? A Case Study in Sparse Probing

Kavli Affiliate: Max Tegmark | First 5 Authors: Subhash Kantamneni, Joshua Engels, Senthooran Rajamanoharan, Max Tegmark, Neel Nanda | Summary: Sparse autoencoders (SAEs) are a popular method for interpreting concepts represented in large language model (LLM) activations. However, there is a lack of evidence regarding the validity of their interpretations due to the lack of […]


Continue.. Are Sparse Autoencoders Useful? A Case Study in Sparse Probing

TOI-6324b: An Earth-Mass Ultra-Short-Period Planet Transiting a Nearby M Dwarf

Kavli Affiliate: Roland Vanderspek | First 5 Authors: Rena A. Lee, Fei Dai, Andrew W. Howard, Samuel Halverson, Jonathan Gomez Barrientos | Summary: We report the confirmation of TOI-6324 b, an Earth-sized (1.059 $pm$ 0.041 R$_oplus$) ultra-short-period (USP) planet orbiting a nearby ($sim$20 pc) M dwarf. Using the newly commissioned Keck Planet Finder (KPF) spectrograph, […]


Continue.. TOI-6324b: An Earth-Mass Ultra-Short-Period Planet Transiting a Nearby M Dwarf

TOI-6324b: An Earth-Mass Ultra-Short-Period Planet Transiting a Nearby M Dwarf

Kavli Affiliate: Roland Vanderspek | First 5 Authors: Rena A. Lee, Fei Dai, Andrew W. Howard, Samuel Halverson, Jonathan Gomez Barrientos | Summary: We report the confirmation of TOI-6324 b, an Earth-sized (1.059 $pm$ 0.041 R$_oplus$) ultra-short-period (USP) planet orbiting a nearby ($sim$20 pc) M dwarf. Using the newly commissioned Keck Planet Finder (KPF) spectrograph, […]


Continue.. TOI-6324b: An Earth-Mass Ultra-Short-Period Planet Transiting a Nearby M Dwarf

TOI-6324b: An Earth-Mass Ultra-Short-Period Planet Transiting a Nearby M Dwarf

Kavli Affiliate: George R. Ricker | First 5 Authors: Rena A. Lee, Fei Dai, Andrew W. Howard, Samuel Halverson, Jonathan Gomez Barrientos | Summary: We report the confirmation of TOI-6324 b, an Earth-sized (1.059 $pm$ 0.041 R$_oplus$) ultra-short-period (USP) planet orbiting a nearby ($sim$20 pc) M dwarf. Using the newly commissioned Keck Planet Finder (KPF) […]


Continue.. TOI-6324b: An Earth-Mass Ultra-Short-Period Planet Transiting a Nearby M Dwarf

The life cycle of giant molecular clouds in simulated Milky Way-mass galaxies

Kavli Affiliate: Mark Vogelsberger | First 5 Authors: Yang Ni, Hui Li, Mark Vogelsberger, Laura V. Sales, Federico Marinacci | Summary: In this work, we trace the complete life cycle of individual GMCs in high-resolution Milky Way-mass galaxy simulations to determine how different stellar feedback mechanisms and galactic-scale processes govern cloud lifetimes, mass evolution, and […]


Continue.. The life cycle of giant molecular clouds in simulated Milky Way-mass galaxies

Using Infrared Dust Echoes to Identify Bright Quasi-periodic Eruption Sources

Kavli Affiliate: Dheeraj R. Pasham | First 5 Authors: Dheeraj R. Pasham, Eric Coughlin, Sjoert van Velzen, Jason Hinkle, | Summary: Quasi-periodic eruptions (QPEs) are recurring soft X-ray outbursts from galactic nuclei and represent an intriguing new class of transients. Currently, 10 QPE sources are reported in the literature, and a major challenge lies in […]


Continue.. Using Infrared Dust Echoes to Identify Bright Quasi-periodic Eruption Sources

A Catalog of Local Universe Fast Radio Bursts from CHIME/FRB and the KKO Outrigger

Kavli Affiliate: Kiyoshi W. Masui | First 5 Authors: Mandana Amiri, Daniel Amouyal, Bridget C. Andersen, Shion Andrew, Kevin Bandura | Summary: We present the first catalog of fast radio burst (FRB) host galaxies from CHIME/FRB Outriggers, selected uniformly in the radio and the optical by localizing 81 new bursts to 2” x ~60” accuracy […]


Continue.. A Catalog of Local Universe Fast Radio Bursts from CHIME/FRB and the KKO Outrigger