491 citations · 1.4k across the 24 of their papers we have counts for
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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, $ε…
Quasar Spectral Energy Distributions in the Rest-Frame EUV: Hubble-COS Spectra of Two Ultra-luminous Quasars
J. Michael Shull, Rongmon Bordoloi, Charles W. Danforth
Using the Cosmic Origins Spectrograph (COS) aboard the Hubble Space Telescope with both far-UV (FUV) and near-UV (NUV) gratings, we measure the ionizing spectra of two bright, inte…
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 B1…
The Lyman alpha Sky as Observed by New Horizons
G. R. Gladstone, J. M. Shull, W. R. Pryor +22
During September 2023 the Alice ultraviolet spectrograph on the New Horizons (NH) spacecraft was used to map diffuse Lyman alpha (Lya) emission over most of the sky, at a range of…
Excess Ultraviolet Emission at High Galactic Latitudes: A New Horizons View
Jayant Murthy, J. Michael Shull, Marc Postman +11
We present new observations of the cosmic ultraviolet background (CUVB) at high Galactic latitudes (), made using the Alice UV spectrograph on board the New Horiz…