activity
20022017
most citedA spectroscopic survey on the multiplicity of high-mass stars

358 citations · 1.1k across the 18 of their papers we have counts for

collaborators

18 papers

astro-ph.SR2017★ 19 cited

Spectroscopic and photometric oscillatory envelope variability during the S Doradus outburst of the Luminous Blue Variable R71

A. Mehner, D. Baade, J. H. Groh +7

To better understand the LBV phenomenon, we analyze multi-epoch and multi-wavelength spectra and photometry of R71. Pre-outburst spectra are analyzed with the radiative transfer co…

astro-ph.SR2015★ 27 cited

The magnetic field and spectral variability of the He-weak star HR 2949

M. Shultz, Th. Rivinius, C. P. Folsom +6

We analyze a high resolution spectropolarimetric dataset collected for the He-weak B3p IV star HR 2949. The Zeeman effect is visible in the circularly polarized component of numero…

astro-ph.SR2013★ 35 cited

Dynamical mass of the O-type supergiant in Zeta Orionis A

C. A. Hummel, Th. Rivinius, M. -F. Nieva +3

A close companion of Zeta Orionis A was found in 2000 with the Navy Precision Optical Interferometer (NPOI), and shown to be a physical companion. Because the primary is a supergia…

astro-ph.SR2012★ 358 cited

A spectroscopic survey on the multiplicity of high-mass stars

R. Chini, V. H. Hoffmeister, A. Nasseri +2

The formation of stars above about twenty solar masses and their apparently high multiplicity remain heavily debated subjects in astrophysics. We have performed a vast high-resolut…

astro-ph2008★ 86 cited

Centimeter-wave continuum radiation from the rho Ophiuchi molecular cloud

Simon Casassus, Clive Dickinson, Kieran Cleary +8

The rho Oph molecular cloud is undergoing intermediate-mass star formation. UV radiation from its hottest young stars heats and dissociates exposed layers, but does not ionize hydr…

astro-ph2008★ 40 cited

A Three-Decade Outburst of the LMC Luminous Blue Variable R127 Draws to a Close

Nolan R. Walborn, Otmar Stahl, Roberto C. Gamen +7

The paradigmatic Luminous Blue Variable R127 in the Large Magellanic Cloud has been found in the intermediate, peculiar early-B state, and substantially fainter in visual light, si…