3 papers
astro-ph.GA2025
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…
astro-ph.GA2025
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…
astro-ph.GA2024
Epsilon Canis Majoris: The Brightest EUV Source with Surprisingly Low Interstellar Absorption
J. Michael Shull, Rachel M. Curran, Michael W. Topping
The B2 star CMa, at parallax distance ~pc, dominates the H I photoionization of the local interstellar cloud (LIC). At its closer parallax distance compared to pr…