378 citations · 1.5k across the 19 of their papers we have counts for
17 papers
Recalibrating the Sensitivities of the STIS First-Order, Medium-Resolution Modes
Alex Fullerton
The sensitivities of STIS first-order, medium resolution modes were redetermined from on-orbit observations and CALSPEC models (version 11) of the primary white-dwarf spectrophotom…
Extensive Observational Evidence for Massive Star Stellar Wind Variability at Low Metallicities: implications for mass-loss rate determination
Timothy N. Parsons, Raman K. Prinja, Derck L. Massa +1
Mass-loss from massive stars is fundamental to stellar and galactic evolution and enrichment of the interstellar medium. Reliable determination of mass-loss rate is dependent upon…
X-Shooting ULLYSES: Massive Stars at Low Metallicity
Jorick S. Vink, Paul Crowther, Alex Fullerton +20
The Hubble Space Telescope has devoted 500 orbits to observing 250 massive stars with low metallicity in the ultraviolet (UV) range within the framework of the ULLYSES program. The…
Walking along Cosmic History: Metal-poor Massive Stars
M. Garcia, C. J. Evans, A. Wofford +7
Multiple generations of massive stars have lived and died during Cosmic History, invigorating host galaxies with ionizing photons, kinetic energy, fresh material and stellar-size b…
X-ray emission from the giant magnetosphere of the magnetic O-type star NGC 1624-2
V. Petit, D. H. Cohen, G. A. Wade +7
We observed NGC 1624-2, the O-type star with the largest known magnetic field Bp~20 kG), in X-rays with the ACIS-S camera onboard the Chandra X-ray Observatory. Our two observation…
Mass loss rates inferred from mid-IR color excesses of LMC and SMC O stars
D. Massa, A. Fullerton, D. Lennon +1
We use a combination of VJHK and Spitzer} [3.6], [5.8] and [8.0] photometry, to determine IR excesses in a sample of LMC and SMC O stars. This sample is ideal for determining exces…