Publications (188)
Searching for magnetic fields in pulsating A-type stars: the discovery of a strong field in the probable delta Sct star HD340577 and a null result for the gamma Dor star HR8799
S. Hubrig, S. P. Jarvinen, J. D. Alvarado-Gomez +2
Numerous delta Sct and gamma Dor pulsators are identified in the region of the Hertzsprung-Russell diagram that is occupied by chemically peculiar magnetic Ap stars. The connection…
Isotopic Anomalies in CP Stars: Helium, Mercury, Platinum, and Calcium
C. R. Cowley, S. Hubrig, F. Castelli
We review the classical observational results for isotopic abundance variations for several elements in CP stars. We concentrate on the "newest" anomaly, in calcium. The cosmically…
Heavy Calcium in CP Stars
C. R. Cowley, S. Hubrig, F. Castelli +2
Large wavelength shifts of infrared triplet lines of Ca II have been observed in the spectra of HgMn and magnetic Ap stars. They have been attributed to the heavy calcium isotopes,…
A search for magnetic fields in cool sdB stars
G. Mathys, S. Hubrig, E. Mason +3
Hot cluster Horizontal Branch (HB) stars and field subdwarf B (sdB) stars are core helium burning stars that exhibit abundance anomalies that are believed to be due to atomic diffu…
Physical properties of the very young PN Hen3-1357 (Stingray Nebula) based on multiwavelength observations
Masaaki Otsuka, M. Parthasarathy, A. Tajitsu +1
We have carried out a detailed analysis of the interesting and important very young planetary nebula (PN) Hen3-1357 (Stingray Nebula) based on a unique dataset of optical to far-IR…
Weak magnetic fields in central stars of planetary nebulae?
M. Steffen, S. Hubrig, H. Todt +4
It is not yet clear whether magnetic fields play an essential role in shaping planetary nebulae (PNe), or whether stellar rotation alone and/or a close binary companion can account…