HAWC, Fermi-LAT and Chandra Detections of High Energy Particles in the S106 Star Forming Region

@misc{babu2026hawc,
  title = {{HAWC, Fermi-LAT and Chandra Detections of High Energy Particles in the S106 Star Forming Region}},
  author = {Rishi Babu and Stephen DiKerby and Tulun Ergin and Shuo Zhang and Mehr Un Nisa and the HAWC Collaboration},
  howpublished = {arXiv},
  year = {2026},
  month = oct,
  doi = {10.48550/arxiv.2610.41163},
  eprint = {2610.41163},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2610.41163},
  note = {CC BY 4.0},
}

TY  - UNPB
TI  - HAWC, Fermi-LAT and Chandra Detections of High Energy Particles in the S106 Star Forming Region
AU  - Rishi Babu
AU  - Stephen DiKerby
AU  - Tulun Ergin
AU  - Shuo Zhang
AU  - Mehr Un Nisa
AU  - the HAWC Collaboration
PY  - 2026
DA  - 2026/10/30
PB  - arXiv
DO  - 10.48550/arxiv.2610.41163
UR  - https://arxiv.org/abs/2610.41163
AB  - Local star-forming regions have recently been the subject of scrutiny as cosmic-ray accelerators and sources of ultra-high-energy gamma-ray emissions. The Cygnus-X region is one of the richest star forming regions in the galaxy and over the last few decades has been extensively studied. Here we report the detection of a star-forming region located in the southern part of Cygnus-X, Sharpless 106 (S106), using the HAWC Observatory. The S106 region is spatially located near the cataloged gamma-ray source 1LHAASO J2027+3657. In this work, we perform a multi-wavelength analysis of S106, by combining HAWC data with re-analysis of Fermi-LAT and archival Chandra data. We construct a fully leptonic model for the multi-wavelength emission from S106 from a single population of high-energy leptons, with the gamma-rays greater than 1 TeV being produced by inverse Compton scattering of the locally-produced IR photon field from S106 itself. Our models show that hadronic mechanisms are not always required to explain the observed flux from gamma-ray star-forming regions and that understanding the specific details of local photon fields is crucial to modeling the multi-wavelength emission from star-forming regions.
ER  -