The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Far‐infrared and optical [O iii] lines are useful temperature–density diagnostics of nebular as well as dust obscured astrophysical sources. Fine‐structure transitions among the ground state levels 1 s22 s22 p33 P 0,1,2 give rise to the 52‐ and 88‐m lines, whereas transitions among the 3 P 0,1,2, 1 D 2, 1 S 0 levels yield the well‐known optical lines λλ4363, 4959 and 5007 Å. These lines are excited...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.