SIMBAD references

1994A&A...287...95M - Astronomy and Astrophysics, volume 28795-104 (1994/7-1)

Simultaneous intensive photometry and high resolution spectroscopy of δ Scuti stars I. Mode typing of HD 106384 = FG Virginis.

MANTEGAZZA L., PORETTI E. and BOSSI M.

Abstract (from CDS):

53 hours of photometric observations and 7 hours of consecutive high resolution spectroscopic observations of the δ Scuti star HD 106384 = FG Vir have been obtained. From photometry we were able to detect 7 pulsation modes, 4 of which were also seen in the time series describing the variations of line profiles. From spectroscopy we also derived vsin i=21 km/sand estimated i≃30deg. The ensuing discussion of the combined results of the analyses of photometric and spectroscopic data suggests that the dominant 12.72 c/d term is probably the first radial overtone mode, two other terms (9.66 and 19.86 c/d) are nonradial non-axisymmetric modes, while a fourth term (24.22 c/d) is an axisymmetric mode (may be radial). Problems connected to mode typing and possible effects due to rotational splitting are also discussed.

Abstract Copyright: ∼

Journal keyword(s): methods: data analysis - techniques: photometric - techniques: spectroscopic - stars: individual: HD 106384 - stars: oscillations - stars: δ Scu

Simbad objects: 8

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