Doppler Images of Rapidly Rotating Ap Stars
1988 ◽
Vol 132
◽
pp. 199-204
Keyword(s):
The magnetic Ap stars are characterized by the presence of large magnetic fields which undergo periodic variations. These magnetic field variations are accompanied by spectral variations caused by the inhomogeneous distribution of elements on the stellar surface. It is believed that the magnetic field plays an important role in determining this distribution. Accurate maps of the surface distribution of elements would provide valuable probes as to the field geometry as well as provide clues to the role of the magnetic fields in the atmospheres of these stars. We have developed a new technique for mapping the local equivalent width on a stellar surface from the observed spectral line variations.
2020 ◽
Vol 495
(4)
◽
pp. 4297-4305
1991 ◽
Vol 130
◽
pp. 414-416
2007 ◽
Vol 328
(6)
◽
pp. 475-490
◽
1993 ◽
Vol 10
(3)
◽
pp. 247-249
◽
1968 ◽
Vol 35
◽
pp. 127-130
◽