206 citations · 372 across the 10 of their papers we have counts for
9 papers · 1 filter
Revised orbital parameters of the gamma2 Velorum system
Werner Schmutz, Christian A. Hummel, Gloria Koenigsberger +2
Context. gamma2 Velorum is the closest and visually brightest Wolf-Rayet binary system. Its eccentric orbit modulates the X-rays observed from the wind-wind interaction, and its la…
A VLBI study of the wind-wind collision region in the massive multiple HD 167971
J. Sanchez-Bermudez, A. Alberdi, R. Schödel +7
Context. Colliding winds in massive binaries are able to accelerate particles up to relativistic speeds as the result of the interaction between the winds of the different stellar…
Weak Magnetic Fields in Two Herbig Ae Systems: The SB2 AK Sco and the Presumed Binary HD 95881
S. P. Järvinen, T. A. Carroll, S. Hubrig +9
We report the detection of weak mean longitudinal magnetic fields in the Herbig Ae double-lined spectroscopic binary AK Sco and in the presumed spectroscopic Herbig Ae binary HD958…
Surveying the Bright Stars by Optical Interferometry I: A Search for Multiplicity Among Stars of Spectral Types F - K
Donald Hutter, Robert Zavala, Christopher Tycner +5
We present the first results from an ongoing survey for multiplicity among the bright stars using the Navy Precision Optical Interferometer (NPOI). We first present a summary of NP…
Unveiling the near-infrared structure of the massive-young stellar object NGC 3603 IRS 9A with sparse aperture masking and spectroastrometry
J. Sanchez-Bermudez, C. A. Hummel, P. Tuthill +4
Contemporary theory holds that massive stars gather mass during their initial phases via accreting disk-like structures. However, conclusive evidence for disks has remained elusive…
Properties of bow-shock sources at the Galactic center
J. Sanchez-Bermudez, R. Schödel, A. Alberdi +3
There are an enigmatic population of massive stars around the Galactic Center (GC) that were formed some Ma ago. A fraction of these stars has been found to orbit the supermassive…