124 citations · 465 across the 15 of their papers we have counts for
15 papers
The H line emission of the Be star Psc: the last 40 years
Ronaldo S. Levenhagen, Marcos P. Diaz, Eduardo B. Amôres +1
A study on the photosphere and disc of the Be star Psc is presented. We recover almost 40 years of high-resolution spectroscopic observations and additional data gathered from…
The Remarkable Be+sdOB Binary HD 55606 I: Orbital and Stellar Parameters
S. Drew Chojnowski, Jonathan Labadie-Bartz, Thomas Rivinius +20
Prompted by peculiar spectroscopic variability observed in SDSS/APOGEE -band spectra, we monitored the Be star HD 55606 using optical spectroscopy and found that it is an exotic…
The Variable Line Width of Achernar
Th. Rivinius, R. H. D. Townsend, D. Baade +3
Spectroscopic observations of Achernar over the past decades, have shown the photospheric line width, as measured by the rotational parameter , to vary in correlation wit…
42 Years of Continuous Observations of the Solar Diameter from 1974 to 2015
Alexandre H. Andrei, Sergio C. Boscardin, Jucira L. Penna +2
Several group in the World followed the solar diameter with dedicated instruments, namely solar astrolabes, since 1974. Their data have been gathered in several observing stations…
Kinematics and chemical abundances of the B star HD 28248
Ronaldo S. Levenhagen, Roseli Künzel, Nelson V. Leister
We perform a detailed elemental abundance study of the early-type B star HD 28248 and estimate its orbital path in the Galaxy. From the comparison of spectroscopic observations per…
The periodicity of the eta Carinae events
A. Damineli, M. F. Corcoran, D. J. Hillier +14
Extensive spectral observations of eta Carinae over the last cycle, and particularly around the 2003.5 low excitation event, have been obtained. The variability of both narrow and…