| タイトル | How to unveil a T Tauri star |
| 著者（英） | Hartigan, Patrick; Hartmann, Lee; Hewett, Robert; Kenyon, Scott; Stauffer, John |
| 著者所属（英） | Harvard-Smithsonian Center for Astrophysics|NASA Ames Research Center |
| 発行日 | 1989-08-01 |
| 言語 | eng |
| 内容記述 | A method for separating the 'veiling' continuum often present in T Tauri stars from the underlying photospheric spectrum is described. Echelle observations from 5100 to 6800 A of the partially veiled T Tauri star BP Tau were analyzed to determine the shape of the veiling spectrum. The residuals of the fit indicate the deviation of the veiling spectrum from a simple continuum and identify the location and strength of any emission-line components. It is shown, by means of goodness-of-fit tests, that the spectrum of BP Tau can be decomposed into a normal stellar spectrum plus a smooth veiling continuum with only a few emission lines superposed. The continuum dominates the veiling spectrum in this spectral region; the veiling does not arise from numerous deep photospheric absorption lines that are filled in by weak emission. |
| NASA分類 | ASTROPHYSICS |
| レポートNO | 89A50114 |
| 権利 | Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/361835 |
|
