δ Scuti stars in praesepe. II. The STACC 1998 campaign - The spectroscopy
- Author(s)
- T H Dall, Søren Frandsen, Holger Lehmann, G C Anupama, E Kambe, Gerald Handler, S Kawanomoto, E Watanabe, M Fukata, T Nagae, S Horner
- Abstract
We present the results of a large international spectroscopic campaign on the δ Scuti star BN Cnc. Combining observations from five observatories taken over more than two weeks, we calculate line indices of the Hα line. A line index is the integrated line flux in a software filter divided by the continuum flux. We demonstrate that this can be used in combination with simultaneous photometry to classify the oscillation modes. We recover all the frequencies also found from photometry and assign likely mode identifications, which differ slightly from previously published values, but are found to be consistent with simple models. The difference in identification is found to have very little effect on the derived luminosity and temperature.
- Organisation(s)
- Department of Astrophysics
- External organisation(s)
- European Southern Observatory (Germany), Aarhus University, Thüringer Landessternwarte Tautenburg, Kidwai Memorial Institute of Oncology India, National Defense Academy of Japan, National Astronomical Observatory of Japan, Kobe University, Lockheed Martin
- Journal
- Astronomy & Astrophysics
- Volume
- 385
- Pages
- 921-931
- No. of pages
- 11
- ISSN
- 0004-6361
- Publication date
- 2002
- Peer reviewed
- Yes
- Austrian Fields of Science 2012
- 103003 Astronomy
- Portal url
- https://ucris.univie.ac.at/portal/en/publications/-scuti-stars-in-praesepe-ii-the-stacc-1998-campaign--the-spectroscopy(d3a0f08d-9802-47e8-89fd-673d15457a4c).html