5 papers
The first three-dimensional map of thermal phases in the local interstellar medium
Jonathan Shelest, Shmuel Bialy, Troy A. Porter +3
The thermal state of interstellar gas controls whether it remains warm and diffuse or cools into dense clouds. Twenty-one centimetre observations have established a statistical pic…
Geometry, Not Calorimetry, Drives the Radio/Infrared/Gamma-Ray Correlation
Troy A. Porter, Igor V. Moskalenko, Gudlaugur Johannesson
We investigate whether the observed radio-infrared--ray correlation in star-forming galaxies is a geometric effect rather than a signature of local cosmic-ray (CR) calorimetry.…
Voyager 1 Data Reveals Signatures of the Local Gas and Cosmic-Ray Source Distributions
Troy A. Porter, Igor V. Moskalenko, Alan C. Cummings +1
We investigate the effects of the nearby interstellar medium (ISM) on the locally measured cosmic-ray (CR) spectra. Using the GALPROP code we explore how variations in the local ga…
Combined dark matter search towards dwarf spheroidal galaxies with Fermi-LAT, HAWC, H.E.S.S., MAGIC, and VERITAS
LAT Collaboration, S. Abdollahi, L. Baldini +586
Dwarf spheroidal galaxies (dSphs) are excellent targets for indirect dark matter (DM) searches using gamma-ray telescopes because they are thought to have high DM content and a low…
The first detection of cosmic-ray excited H in interstellar space
Shmuel Bialy, Amit Chemke, David A. Neufeld +12
Stars and planets form within cold, dark molecular clouds. In these dense regions, where starlight cannot penetrate, cosmic rays (CRs) are the dominant source of ionization -- driv…