9 papers
A Faint Progenitor System for the Faint Supernova 2024vjm
Erez A. Zimmerman, Avishay Gal-Yam, Paul J. Groot +68
Type Ia Supernovae (SNe Ia) are well known for their role as standardizable cosmological candles. Their uniformity is credited to their single origin as thermonuclear explosions of…
Stroke Lesions as a Rosetta Stone for Language Model Interpretability
Julius Fridriksson, Roger D. Newman-Norlund, Saeed Ahmadi +10
Large language models (LLMs) have achieved remarkable capabilities, yet methods to verify which model components are truly necessary for language function remain limited. Current i…
Ionization Sources of the Local Interstellar Clouds: Two B-stars, Three White Dwarfs, and the Local Hot Bubble
J. Michael Shull, Rachel M. Curran, Michael W. Topping +1
The dominant sources of photoionizing radiation in the extreme ultraviolet (EUV) incident on the exterior of the local interstellar clouds include two nearby early B-type stars, $Î…
An Improved Atlas of Full-Scan Spectra from ISO/SWS
D. R. Mizuno, T. A. Kuchar, Kathleen E. Kraemer +4
We present an atlas of full-scan spectra from the Short-Wavelength Spectrometer (SWS) aboard the Infrared Space Observatory (ISO) after reprocessing and improving an earlier versio…
Forgotten treasures in the HST/FOC UV imaging polarimetric archives of active galactic nuclei. IV. 5 Orphaned AGNs
Thibault Barnouin, Frédéric Marin, Enrique Lopez-Rodriguez
The Faint Object Camera (FOC) on board the Hubble Space Telescope (HST) acquired high-resolution spatially resolved polarimetric images of nearby active galactic nuclei (AGNs) in t…
Beta Canis Majoris: The Other Major Ionization Source of the Local Interstellar Clouds
J. Michael Shull, Rachel M. Curran, Michael W. Topping
Two nearby B-type stars, CMa ( pc) and CMa ( pc), are important contributors to the photoionization of the local interstellar clouds. At spectral type B…