| Information | |
|---|---|
| has gloss | eng: A low-ionization nuclear emission-line region (LINER) is a type of galactic nucleus that is defined by its spectral line emission. The spectra typically include line emission from weakly ionized or neutral atoms, such as O, O+, N+, and S+. Conversely, the spectral line emission from strongly ionized atoms, such as O++, Ne++, and He+, is relatively weak. The class of galactic nuclei was first identified by Timothy Heckman in the third of a series of papers on the spectra of galactic nuclei that were published in 1980. Approximately 75% of LINER galaxies are either elliptical galaxies, lenticular galaxies, or S0/a-Sab galaxies (spiral galaxies with large bulges and tightly-wound spiral arms). LINERs are found less frequently in Sb-Scd galaxies (spiral galaxies with small bulges and loosely-wound spiral arms), and they are very rare in nearby irregular galaxies. |
| lexicalization | eng: LINER galaxies |
| lexicalization | eng: Low ionization nuclear emission line region |
| lexicalization | eng: Low ionization nuclear emission-line region |
| lexicalization | eng: Low-ionization nuclear emission line region |
| lexicalization | eng: Low-ionization nuclear emission-line region |
| subclass of | e/Galaxy |
| Meaning | |
|---|---|
| Italian | |
| has gloss | ita: Una regione nucleare a linee di emissione a bassa ionizzazione è un tipo di nucleo galattico definito dalle sue linee di emissione spettrali. Lo spettro tipicamente include linee di emissione debolmente ionizzate, o atomi neutri, come O, O+, N+ e S+. Per contro, le linee di emissione spettrali dagli atomi fortemente ionizzati, come O++, Ne++ ed He+, sono relativamente deboli. |
| lexicalization | ita: regione nucleare a linee di emissione a bassa ionizzazione |
| Norwegian Nynorsk | |
| has gloss | nno: LINER (engelsk forkorting for low-ionization nuclear emission-line region) er ein vanleg type galaksekjernar som er kjenneteikna ved forholdstalet av vanlegvis svake emisjonslinjer. Nokre LINER ser ut til å vera svake aktive galaksekjernar grunna tilstadeveringa av svake og breie linjer som liknar på dei ein finn i Seyfert type 1-galaksar, eller assosiert ultafiolett, radio- eller røntgenstråling. |
| lexicalization | nno: LINER-galaksar |
| lexicalization | nno: LINER |
| Turkish | |
| lexicalization | tur: LINER gökadalar |
| Media | |
|---|---|
| media:img | M104 ngc4594 sombrero galaxy hi-res.jpg |
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