271 citations · 3.4k across the 66 of their papers we have counts for
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A spectro-polarimetric study of the planet-hosting G dwarf, HD 147513
Gaitee A. J. Hussain, Julian David Alvarado-Gómez, Jason Grunhut +12
The results from a spectro-polarimetric study of the planet-hosting Sun-like star, HD 147513 (G5V), are presented here. Robust detections of Zeeman signatures at all observed epoch…
The dependence of stellar mass and angular momentum losses on latitude and on active region and dipolar magnetic fields
Cecilia Garraffo, Jeremy J. Drake, Ofer Cohen
Rotation evolution of late-type stars is dominated by magnetic braking and the underlying factors that control this angular momentum loss are important for the study of stellar spi…
Detecting Stars at the Galactic Centre via Synchrotron Emission
Idan Ginsburg, Xiawei Wang, Abraham Loeb +1
Stars orbiting within 1$\arcsec$ of the supermassive black hole in the Galactic Centre, Sgr A*, are notoriously difficult to detect due to obscuration by gas and dust. We show that…
Activity and Magnetic Field Structure of the Sun-Like Planet Hosting Star HD 1237
J. D. Alvarado-Gómez, G. A. J. Hussain, J. Grunhut +13
We analyse the magnetic activity characteristics of the planet hosting Sun-like star, HD 1237, using HARPS spectro-polarimetric time-series data. We find evidence of rotational mod…
Quantifying the Difference Between the Flux-Tube Expansion Factor at the Source Surface and at the Alfvén Surface Using A Global MHD Model for the Solar Wind
Ofer Cohen
The potential field approximation has been providing a fast, and computationally inexpensive estimation for the solar corona's global magnetic field geometry for several decades. I…
Magnetic complexity as an explanation for bimodal rotation populations among young stars
Cecilia Garraffo, Jeremy J. Drake, Ofer Cohen
Observations of young open clusters have revealed a bimodal distribution of fast and slower rotation rates that has proven difficult to explain with predictive models of spin down…