Spatially Resolved STIS Spectroscopy of α Orionis: Evidence for Nonradial Chromospheric Oscillation from Detailed Modeling*

@article{Lobel2001SpatiallyRS,
  title={Spatially Resolved STIS Spectroscopy of $\alpha$ Orionis: Evidence for Nonradial Chromospheric Oscillation from Detailed Modeling*},
  author={A. Lobel and A. H. C. F. Astrophysics and Cambridge and Usa},
  journal={The Astrophysical Journal},
  year={2001},
  volume={558},
  pages={815-829}
}
Four spatially resolved near-UV raster scans across the chromospheric disk of α Ori, obtained with the Space Telescope Imaging Spectrograph on the Hubble Space Telescope, reveal mean chromospheric infall from 1998 January to April, which reversed to upflow in deeper layers between 1998 September and 1999 March. In 1998 September we detect systematic reversals in the component maxima of four double-peaked emission lines of Si I (UV 1), Fe II (UV 36), Fe II (UV 61), and Al II] (UV 1), when… Expand
Texes Observations of M Supergiants: Dynamics and Thermodynamics of Wind Acceleration
Direct Ultraviolet Imaging and Spectroscopy of Betelgeuse
...
1
2
3
4
...

References

SHOWING 1-10 OF 31 REFERENCES
Modeling the Variable Chromosphere of α Orionis
First Image of the Surface of a Star with the Hubble Space Telescope
On Chromospheric Heating Mechanisms of “Basal Flux” Stars*
On the extended chromosphere of Alpha Orionis
...
1
2
3
4
...