5 documents found, page 1 of 1
Incontinentia pigmenti in the neonatal period
Rodrigues, V; Diamantino, F; Voutsen, O; Cunha, MS; Barroso, R; Lopes, MJ; Carreiro, HIncontinentia pigmenti (IP) is a rare multisystem disease, X linked dominant disorder. As all X linked dominant diseases, it is usually male-lethal. Female newborn admitted to the neonatal intensive care unit on the first day of life was diagnosed as having probable herpetic infection with vesicular skin lesions distributed on upper right limb and inferior limbs. Family history showed that her 22-year-old mothe...
THE ASTEROSEISMIC POTENTIAL OF KEPLER: FIRST RESULTS FOR SOLAR-TYPE STARS
Chaplin, WJ; Appourchaux, T; Elsworth, Y; Garcia, RA; Houdek, G; Karoff, C; Metcalfe, TS; Molenda Zakowicz, J; Monteiro, MJPFG; Thompson, MJ; Brown, TMWe present preliminary asteroseismic results from Kepler on three G-type stars. The observations, made at one-minute cadence during the first 33.5 days of science operations, reveal high signal-to-noise solar-like oscillation spectra in all three stars: about 20 modes of oscillation may be clearly distinguished in each star. We discuss the appearance of the oscillation spectra, use the frequencies and frequency...
Kepler Asteroseismology Program: Introduction and First Results
Gilliland, RL; Timothy M Brown; Jorgen Christensen Dalsgaard; Hans Kjeldsen; Conny Aerts; Thierry Appourchaux; Sarbani Basu; Timothy R BeddingAsteroseismology involves probing the interiors of stars and quantifying their global properties, such as radius and age, through observations of normal modes of oscillation. The technical requirements for conducting asteroseismology include ultrahigh precision measured in photometry in parts per million, as well as nearly continuous time series over weeks to years, and cadences rapid enough to sample oscillati...
Asteroseismology and interferometry
Cunha, MS; Aerts, C; Christensen Dalsgaard, J; Baglin, A; Bigot, L; Brown, TM; Catala, C; Creevey, OL; Domiciano D de Souza; Eggenberger, P; Garcia, PJVAsteroseismology provides us with a unique opportunity to improve our understanding of stellar structure and evolution. Recent developments, including the first systematic studies of solar-like pulsators, have boosted the impact of this field of research within astrophysics and have led to a significant increase in the size of the research community. In the present paper we start by reviewing the basic observat...
Seismic tests of the structure of rapidly oscillating Ap stars: HR 1217
Cunha, MS; Fernandes, JMMB; Monteiro, MJPFGHR 1217 is probably the best studied multiperiodic rapidly oscillating Ap star, which makes this star a test case for the seismic analysis of these complex stars. In this paper, we combine the observational data available for HR 1217 and use these data to constrain theoretical models appropriate for this star. In particular, we try to establish which unknown model parameters are the most relevant to reproduce t...