On the Relation between OH⁺, OH and CH⁺ Molecules, Neutral/Molecular Hydrogen and Major 5780/5797 DIBs

• Autorzy: Weselak T.

Identyfikatory

DOI

10.32023/0001-5237/70.4.4

• Języki publikacji: EN

Abstrakty

EN

Relations between column densities of OH⁺, OH⁺ and CH⁺ molecules and between atomic and molecular hydrogen and intensities of major 5780 Å and 5797 Å diffuse interstellar bands are examined based on spectra of 46 stars. Data on OH⁺, OH, CH⁺ and atomic/molecular hydrogen were taken from the literature. Data on 5780 Å and 5797 Å DIBs are based mostly on our own measurements. Column densities of the OH+ are very well correlated with abundances of OH molecule and not correlated with CH⁺ and hydrogen in any form. Column densities of OH⁺ are better correlated with narrow 5797 Å than 5780 Å major DIB. The value of abundance ratio in the case of OH and OH⁺ molecules in the ISM is equal to 5.73±0.45.

Słowa kluczowe

EN

ISM: clouds; ISM: molecules

• Wydawca: Copernicus Foundation for Polish Astronomy
• Czasopismo: Acta Astronomica
• Rocznik: 2020
• Tom: Vol. 70, No. 4
• Strony: 301--312
• Opis fizyczny: Bibliogr. 62 poz., rys., tab.

Twórcy

autor

Weselak T.

• Institute of Physics, Kazimierz Wielki University, ul. Weyssenhoffa 11, 85-072 Bydgoszcz, Poland

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