Optical and H i observations of IC 443 and G189.6 + 3.3 in a complex environment

Baklş H., Payll G., Aktekin E., Sano H., Sezer A.

Monthly Notices of the Royal Astronomical Society, cilt.532, sa.2, ss.2570-2583, 2024 (SCI-Expanded) identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 532 Sayı: 2
  • Basım Tarihi: 2024
  • Doi Numarası: 10.1093/mnras/stae1653
  • Dergi Adı: Monthly Notices of the Royal Astronomical Society
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Aerospace Database, Applied Science & Technology Source, Communication Abstracts, Compendex, INSPEC, Metadex, zbMATH, DIALNET, Civil Engineering Abstracts
  • Sayfa Sayıları: ss.2570-2583
  • Anahtar Kelimeler: Atomic data, G189.6 + 3.3, ISM: H ii regions, ISM: individual objects: IC 443 (G189.1 + 3.0), ISM: supernova remnants
  • Akdeniz Üniversitesi Adresli: Evet

Özet

The supernova remnant (SNR) IC 443 is one of the best-studied Galactic SNRs at many wavelengths. It is interacting with a very complex environment, including the SNR G189.6 + 3.3 and H ii regions. In this paper, we report on observations of IC 443 and G189.6 + 3.3 using 1.5- and 1-m telescopes to better understand the nature of these SNRs in the optical band. We obtain H images showing both filamentary and diffuse structures, and long-slit spectra from many locations, with Balmer and forbidden lines detected for IC 443 and G189.6 + 3.3. The [S ii]/ H ratios confirm the SNR nature of G189.6 + 3.3. The ranges of our estimated electron density and pre-shock cloud density clearly indicate the complex structure surrounding IC 443 and G189.6 + 3.3. We also investigate the archival H i data and newly find some shell-like distributions of H i that are possibly associated with G189.6 3.3.