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Modeling X-ray emission from stellar coronae
| Content Provider | Semantic Scholar |
|---|---|
| Author | Gregory, Scott Jardine, Moira M. Argiroffi, Costanza Donati, J. C. |
| Copyright Year | 2008 |
| Abstract | By extrapolating from observationally derived surface magnetograms of low-mass stars we construct models of their coronal magnetic fields and compare the 3D field geometry with axial multipoles. AB Dor, which has a radiative core, has a very complex field, whereas V374 Peg, which is completely convective, has a simple dipolar field. We calculate global X-ray emission measures assuming that the plasma trapped along the coronal loops is in hydrostatic equilibrium and compare the differences between assuming isothermal coronae, or by considering a loop temperature profiles. Our preliminary results suggest that the non-isothermal model works well for the complex field of AB Dor, but not for the simple field of V374 Peg. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://arxiv.org/pdf/0809.4222v1.pdf |
| Language | English |
| Access Restriction | Open |
| Subject Keyword | Equilibrium Extrapolation Plasma Active Receptors, Opioid, delta Stars, Celestial Stellar (payment network) peginterferon alfa-2b |
| Content Type | Text |
| Resource Type | Article |
