Abstract
Linear polarization measurements across the H..beta.. emission lines of the stars ..gamma.. Cas, zeta Tau and 48 Per are presented. For the first two stars there is a marked reduction of the polarization at the centre of the line and for ..gamma.. Cas, this varies from night to night. During the H..beta.. observations of zeta Tau, a change of polarization over tens of minutes was indicated in a monitor channel tuned to the continuum on the blue side of H..beta... For the fainter star, 48 Per, the uncertainties of the polarimetry were increased in relation to ..gamma.. Cas and zeta Tau by a factor of about two and at this precision, no differential effects across the line were recorded. Observations of ..cap alpha.. Cyg are also given to demonstrate the reliability of the polarimeter.
Citation Formats
Clarke, D, and McLean, I S.
Linear polarization measurements at H. beta. of early-type emission line stars.
United Kingdom: N. p.,
1976.
Web.
Clarke, D, & McLean, I S.
Linear polarization measurements at H. beta. of early-type emission line stars.
United Kingdom.
Clarke, D, and McLean, I S.
1976.
"Linear polarization measurements at H. beta. of early-type emission line stars."
United Kingdom.
@misc{etde_7339035,
title = {Linear polarization measurements at H. beta. of early-type emission line stars}
author = {Clarke, D, and McLean, I S}
abstractNote = {Linear polarization measurements across the H..beta.. emission lines of the stars ..gamma.. Cas, zeta Tau and 48 Per are presented. For the first two stars there is a marked reduction of the polarization at the centre of the line and for ..gamma.. Cas, this varies from night to night. During the H..beta.. observations of zeta Tau, a change of polarization over tens of minutes was indicated in a monitor channel tuned to the continuum on the blue side of H..beta... For the fainter star, 48 Per, the uncertainties of the polarimetry were increased in relation to ..gamma.. Cas and zeta Tau by a factor of about two and at this precision, no differential effects across the line were recorded. Observations of ..cap alpha.. Cyg are also given to demonstrate the reliability of the polarimeter.}
journal = []
volume = {174:2}
journal type = {AC}
place = {United Kingdom}
year = {1976}
month = {Feb}
}
title = {Linear polarization measurements at H. beta. of early-type emission line stars}
author = {Clarke, D, and McLean, I S}
abstractNote = {Linear polarization measurements across the H..beta.. emission lines of the stars ..gamma.. Cas, zeta Tau and 48 Per are presented. For the first two stars there is a marked reduction of the polarization at the centre of the line and for ..gamma.. Cas, this varies from night to night. During the H..beta.. observations of zeta Tau, a change of polarization over tens of minutes was indicated in a monitor channel tuned to the continuum on the blue side of H..beta... For the fainter star, 48 Per, the uncertainties of the polarimetry were increased in relation to ..gamma.. Cas and zeta Tau by a factor of about two and at this precision, no differential effects across the line were recorded. Observations of ..cap alpha.. Cyg are also given to demonstrate the reliability of the polarimeter.}
journal = []
volume = {174:2}
journal type = {AC}
place = {United Kingdom}
year = {1976}
month = {Feb}
}