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March 31, 2026The Astrophysical Journal LettersOpen Access

Detection of a Molecular Hydrogen Envelope around Nova GK Persei

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Authors

DBD. P. K. BanerjeeAEA. EvansTLT. Liimets

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Overview

Reveals a molecular hydrogen envelope in Nova GK Persei, suggesting an ongoing process of gas recombination.

Key Points

  • The research aims to identify the presence and characteristics of a molecular hydrogen shell around Nova GK Persei.
  • Utilized data from the Spectro-Photometer for the History of the Universe, Epoch of Reionization, and Ices Explorer (SPHEREx).
  • Analyzed the S (9) 4.6947 μm emission line for molecular hydrogen detection.
  • Investigated the spatial relationship between the molecular shell and surrounding nebulosity.
  • Detected a bipolar molecular hydrogen shell with dimensions 18' × 10'.
  • Found a filament of emission 45'' southwest of GK Per coinciding with X-ray and radio emission.
  • Proposed that the molecular hydrogen emission arises from the neutral zone between shock waves.

Cite This Study

Banerjee et al. (2026) studied this question.

synapsesocial.com/papers/69cb63c9e6a8c024954b88cahttps://doi.org/10.3847/2041-8213/ae5234
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