Abstract
White-light simultaneous photometry and linear and circular polarimetry is presented for the AM Her type variable ST LMi. Linear polarization evident throughout the faint phase is tentatively attributed to electron scattering from gas in the accretion column at heights greater than 5 Rsub(wd) above the surface. The values of inclination and magnetic dipole offset are revised to take into account the height and extent of the cyclotron emission regions which are also determined. A model of two closely connected emitting regions is proposed to account for the asymmetries observed in the light curve and polarization data for this and other AM Her systems. The size of the soft X-ray pole cap is calculated. Various parameters such as masses, accretion rates and luminosities are calculated for the system.
Citation Formats
Cropper, M.
Polarimetry of ST LMi (CW1103+254).
United Kingdom: N. p.,
1986.
Web.
Cropper, M.
Polarimetry of ST LMi (CW1103+254).
United Kingdom.
Cropper, M.
1986.
"Polarimetry of ST LMi (CW1103+254)."
United Kingdom.
@misc{etde_5818774,
title = {Polarimetry of ST LMi (CW1103+254)}
author = {Cropper, M}
abstractNote = {White-light simultaneous photometry and linear and circular polarimetry is presented for the AM Her type variable ST LMi. Linear polarization evident throughout the faint phase is tentatively attributed to electron scattering from gas in the accretion column at heights greater than 5 Rsub(wd) above the surface. The values of inclination and magnetic dipole offset are revised to take into account the height and extent of the cyclotron emission regions which are also determined. A model of two closely connected emitting regions is proposed to account for the asymmetries observed in the light curve and polarization data for this and other AM Her systems. The size of the soft X-ray pole cap is calculated. Various parameters such as masses, accretion rates and luminosities are calculated for the system.}
journal = []
volume = {222:4}
journal type = {AC}
place = {United Kingdom}
year = {1986}
month = {Oct}
}
title = {Polarimetry of ST LMi (CW1103+254)}
author = {Cropper, M}
abstractNote = {White-light simultaneous photometry and linear and circular polarimetry is presented for the AM Her type variable ST LMi. Linear polarization evident throughout the faint phase is tentatively attributed to electron scattering from gas in the accretion column at heights greater than 5 Rsub(wd) above the surface. The values of inclination and magnetic dipole offset are revised to take into account the height and extent of the cyclotron emission regions which are also determined. A model of two closely connected emitting regions is proposed to account for the asymmetries observed in the light curve and polarization data for this and other AM Her systems. The size of the soft X-ray pole cap is calculated. Various parameters such as masses, accretion rates and luminosities are calculated for the system.}
journal = []
volume = {222:4}
journal type = {AC}
place = {United Kingdom}
year = {1986}
month = {Oct}
}