Ionized gas in the Scutum spiral arm as traced in [N II] and [C II]

WD Langer, T Velusamy, PF Goldsmith… - Astronomy & …, 2017 - aanda.org
Context. The warm ionized medium (WIM) occupies a significant fraction of the Galactic disk.
Determining the WIM properties at the leading edge of spiral arms is important for …

Geocoronal hydrogen emission variation over two solar cycles

SM Nossal, EJ Mierkiewicz, FL Roesler… - Journal of …, 2019 - Wiley Online Library
Ground‐based hydrogen Balmer‐α observations from Northern midlatitudes span multiple
solar cycles, facilitating investigation of decadal scale variations, including natural variability …