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The calculation includes transitions from the ground state X2\u03a0 to several excited electronic states, up to 12\u0394. Particular attention is given to the nonadiabatic couplings between the 22\u03a0-32\u03a0 and A2\u03a3+-22\u03a3+ states and their influence on the photodissociation dynamics. Spin\u2013orbit coupling among the avoiding crossing electronic states and the ground state as well as the nonadiabatic couplings are incorporated through diabatic representation. Photodissociation cross sections obtained from the coupled channel calculations are compared with adiabatic results that include only spin\u2013orbit coupling. The results show that nonadiabatic interactions significantly modify the cross sections near the avoided crossing regions and induce the pronounced Feshbach resonances. Using the local thermodynamic equilibrium cross sections, photodissociation rates of NaS are further evaluated under the standard interstellar radiation field and blackbody radiation fields. The rates show a relatively weak dependence on the molecular temperature. These results provide useful data for astrochemical modeling of NaS in ultraviolet radiation environments.<\/jats:p>","DOI":"10.1063\/5.0335880","type":"journal-article","created":{"date-parts":[[2026,8,6]],"date-time":"2026-08-06T15:51:52Z","timestamp":1786031512000},"update-policy":"https:\/\/doi.org\/10.1063\/aip-crossmark-policy-page","source":"Crossref","is-referenced-by-count":1,"title":["UV photodissociation rates and cross sections of the NaS molecule including diabatization and spin\u2013orbit coupling"],"prefix":"10.1063","volume":"165","author":[{"ORCID":"https:\/\/orcid.org\/0009-0007-6515-6259","authenticated-orcid":false,"given":"Qinghui","family":"Wei","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0006-8557-8435","authenticated-orcid":false,"given":"Di","family":"Liu","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0641-3087","authenticated-orcid":false,"given":"Bing","family":"Yan","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9165-9649","authenticated-orcid":false,"given":"Boris F.","family":"Minaev","sequence":"additional","affiliation":[{"name":"Department of Chemistry and Nanomaterials Science, Bogdan Khmelnytsky National University 2 , 18031 Cherkasy,","place":["Ukraine"]},{"name":"Department of Physics and Astronomy, Uppsala University 3 , 752 36 Uppsala,","place":["Sweden"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1763-9383","authenticated-orcid":false,"given":"Hans","family":"\u00c5gren","sequence":"additional","affiliation":[{"name":"Department of Chemistry and Nanomaterials Science, Bogdan Khmelnytsky National University 2 , 18031 Cherkasy,","place":["Ukraine"]}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"317","published-online":{"date-parts":[[2026,8,6]]},"reference":[{"key":"2026080611514617800_c1","doi-asserted-by":"publisher","first-page":"241","DOI":"10.1146\/annurev.astro.34.1.241","article-title":"Circumstellar photochemistry","volume":"34","year":"1996","journal-title":"Annu. 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