4 citations · 10 across the 5 of their papers we have counts for
7 papers
The mysterious Of?p class and the magnetic O-star Theta Ori C
Yael Naze, Nolan R. Walborn, Fabrice Martins
In recent years, the stars of the Of?p category have revealed a wealth of peculiar phenomena: varying line profiles, photometric changes, and X-ray overluminosity are only a few of…
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…
The Galactic O Star Catalog V.2.0
A. Sota, J. Maíz Apellániz, Nolan R. Walborn +1
The Galactic O star catalog (GOS) is an ambitious project to provide as much information regarding these types of objects as possible. The first version of the catalog (GOS v1) inc…
The stellar upper mass limit in the solar neighborhood
J. Maíz Apellániz, Nolan R. Walborn, N. I. Morrell +4
We are using HST GO programs 10205, 10602, and 10898 to test the stellar upper mass limit in the solar vicinity by attempting to detect optical close companions, thus lowering the…
Optically observable zero-age main-sequence O stars
Nolan R. Walborn
A list of 50 optically observable O stars that are likely on or very near the ZAMS is presented. They have been selected on the basis of five distinct criteria, although some of th…
IMF biases and how to correct them
J. Maíz Apellániz, L. Úbeda, N. R. Walborn +1
We discuss possible sources of biases in the determination of the initial mass function (IMF) introduced by the binning of the data, the uncertainty in the determinations of masses…