7 citations · 8 across the 3 of their papers we have counts for
4 papers · 1 filter
Accurate distances to nearby massive stars with the new reduction of the Hipparcos raw data
J. Maíz Apellániz, E. J. Alfaro, A. Sota
We use the new reduction of the Hipparcos data (van Leeuwen 2007) and a self-consistent distance determination technique for Lutz-Kelker limited samples to obtain distances to the…
Determining the Fractal Dimension of the Interstellar Medium
Nestor Sanchez, Emilio J. Alfaro, Enrique Perez
The Interstellar Medium seems to have an underlying fractal structure, which can be characterized through its fractal dimension (Df). However, several factors may affect the determ…
Spectroscopic monitoring of Southern Galactic O and WN stars: State of the Art in 2007
R. Gamen, R. Barba, N. Morrell +5
We are conducting a spectroscopic monitoring of O and WN -type stars in our Galaxy. In this work, we summarize some of our first results related to the search for radial-velocity v…
HV Ursae Majoris, a new contact binary with early-type components
B. Csak, L. L. Kiss, J. Vinko +1
We present the first UBV and uvby photometric observations for the short period variable star HV Ursae Majoris classified as a field RRc variable. The observed differences between…