Strömgren photometry and spectroscopy of the Delta Scuti stars 7 Aql and 8 Aql

Abstract

Photometric $(ubvy-\beta$) and spectroscopic observations of the $\delta$ Scuti variables \astrobj{7 Aql} and \astrobj{8 Aql} are described. The Strömgren standard indices and physical parameters of both stars are derived. Spectral types of F0V and F2III have been assigned to \astrobj{7 Aql} and \astrobj{8 Aql} respectively considering the results from both spectroscopy and photometry. Differential $uvby$ light curves were also analyzed. A attempt of multicolour mode identification is carried out.

6 pages, 7 figures, 4 tables, accepted for publication in New Astronomy

References in corpus (4)

• Asteroseismic analysis of the CoRoT δ-Scuti star HD174936
• Granada oscillation Code (GraCo)
• The asteroseismic ground-based observational counterpart of CoRoT
• Multi-site observations of Delta Scuti stars 7 Aql and 8 Aql (a new Delta Scuti variable): The twelfth STEPHI campaign in 2003

Cited by in corpus (5)

• On the photometric detection of Internal Gravity Waves in upper main-sequence stars I. Methodology and application to CoRoT targets
• Impact of gaps in the asteroseismic characterization of pulsating stars. I. On the efficiency of pre-whitening
• Searching for short-period variable stars in the direction of Coma Berenices and Upgren 1 open clusters: Melotte 111 AV 1224 a new eclipsing binary star
• Two-site CCD observations and spectroscopy of HD 207331: a new $\delta$ Scuti variable in Cygnus
• Strömgren photometry and medium-resolution spectroscopy of some $\delta$ Scuti and $\gamma$ Doradus in the Kepler field