Spectrograms of HD 108 covering a wide spectral range (3200 Å-8000 Å) have been obtained in 1971 and 1972 at the Haute Provence Observatory. They are described in detail in the present paper and they are compared to previously published observations. New emission lines have been detected (3806 Å, 4415 Å, 4417 Å, 6340 Å) as well as new rapid intensity variations (He I: 4026.2 Å, 4387.9 Å; N III: 3s4P0-3p4D and 42F0-52G; Si IV: 4s2S-4p2P0). The measured radial velocities are compatible with an expanding atmosphere which exhibit a marked acceleration toward the outer layers.Des spectres de HD 108 couvrant un large domaine spectral (3200 Å-8000 Å) ont été obtenus en 1971 et 1972 à l'Observatoire de Haute Provence. Ils sont décrits en détail et ...
The main-sequence solar-type star HD69830 has an unusually large amount of dusty debris orbiting clo...
peer reviewedWe analyse optical and X-ray spectroscopy of the Of?p star HD108, known for its strong...
We have presented the results of spectral observations of the Herbig Ae star HD 190073 (V1295 Aql), ...
Since the beginning of the past century, the nature of HD 108 has been a subject of intense debate. ...
Since the beginning of the past century, the nature of HD 108 has been a subject of intense debate. ...
In 2001, using a large spectroscopic dataset from an extensive monitoring campaign, we discovered th...
International audienceWe report the detection of a magnetic field on the Of? p star HD 108. Spectrop...
In recent years several in-depth investigations of the three prototypical Of?p stars were undertaken...
International audienceWe present the first ultraviolet spectrum of the peculiar, magnetic Of?p star ...
The Of?p spectral category was introduced by Walborn in 1972 to describe peculiar stars which posses...
During the past years a number of spectra of southern objects have been taken by the authors and the...
Measurements of the lambda 1030 He line in 198 stars are given along with data on other features in ...
From new photometric observations (UBVRI), we present the characteristic features of the light vari...
HD 108 is a peculiar massive star of type Of?p, which present recurrent line profile variations. Arc...
It has been revealed that absorption in the line of Hα has complex structure in the spectrum of the ...
The main-sequence solar-type star HD69830 has an unusually large amount of dusty debris orbiting clo...
peer reviewedWe analyse optical and X-ray spectroscopy of the Of?p star HD108, known for its strong...
We have presented the results of spectral observations of the Herbig Ae star HD 190073 (V1295 Aql), ...
Since the beginning of the past century, the nature of HD 108 has been a subject of intense debate. ...
Since the beginning of the past century, the nature of HD 108 has been a subject of intense debate. ...
In 2001, using a large spectroscopic dataset from an extensive monitoring campaign, we discovered th...
International audienceWe report the detection of a magnetic field on the Of? p star HD 108. Spectrop...
In recent years several in-depth investigations of the three prototypical Of?p stars were undertaken...
International audienceWe present the first ultraviolet spectrum of the peculiar, magnetic Of?p star ...
The Of?p spectral category was introduced by Walborn in 1972 to describe peculiar stars which posses...
During the past years a number of spectra of southern objects have been taken by the authors and the...
Measurements of the lambda 1030 He line in 198 stars are given along with data on other features in ...
From new photometric observations (UBVRI), we present the characteristic features of the light vari...
HD 108 is a peculiar massive star of type Of?p, which present recurrent line profile variations. Arc...
It has been revealed that absorption in the line of Hα has complex structure in the spectrum of the ...
The main-sequence solar-type star HD69830 has an unusually large amount of dusty debris orbiting clo...
peer reviewedWe analyse optical and X-ray spectroscopy of the Of?p star HD108, known for its strong...
We have presented the results of spectral observations of the Herbig Ae star HD 190073 (V1295 Aql), ...