404 citations · 2k across the 39 of their papers we have counts for
8 papers · 1 filter
The Pan-Pacific Planet Search. IV. Two super-Jupiters in a 3:5 resonance orbiting the giant star HD33844
Robert A. Wittenmyer, John Asher Johnson, R. P. Butler +9
We report the discovery of two giant planets orbiting the K giant HD 33844 based on radial velocity data from three independent campaigns. The planets move on nearly circular orbit…
A Two-Temperature Model of Magnetized Protostellar Outflows
Liang-Yao Wang, Hsien Shang, Ruben Krasnopolsky +1
We explore kinematics and morphologies of molecular outflows driven by young protostars using magnetohydrodynamic simulations in the context of the unified wind model of Shang et a…
NIHAO V: Too big doesn't fail -- reconciling the conflict between LCDM predictions and the circular velocities of nearby field galaxies
Aaron A. Dutton, Andrea V. Macciò, Jonas Frings +4
We compare the half-light circular velocities, V_{1/2}, of dwarf galaxies in the Local Group to the predicted circular velocity curves of galaxies in the NIHAO suite of LCDM simula…
NIHAO IV: Core creation and destruction in dark matter density profiles across cosmic time
Edouard Tollet, Andrea V. Macciò, Aaron A. Dutton +10
We use the NIHAO simulations to investigate the effects of baryonic physics on the time evolution of Dark Matter central density profiles. The sample is made of indepe…
Palladium and silver abundances in stars with [Fe/H] > -2.6
Xiaoshu Wu, Liang Wang, Jianrong Shi +2
Palladium (Pd) and silver (Ag) are the key elements for probing the weak component in the rapid neutron-capture process (r-process) of stellar nucleosynthesis. We performed a detai…
NIHAO project I: Reproducing the inefficiency of galaxy formation across cosmic time with a large sample of cosmological hydrodynamical simulations
Liang Wang, Aaron A. Dutton, Gregory S. Stinson +5
We introduce project NIHAO (Numerical Investigation of a Hundred Astrophysical Objects), a set of 100 cosmological zoom-in hydrodynamical simulations performed using the gasoline c…
NIHAO project II: Halo shape, phase-space density and velocity distribution of dark matter in galaxy formation simulations
Iryna Butsky, Andrea V. Macciò, Aaron A. Dutton +6
We use the NIHAO (Numerical Investigation of Hundred Astrophysical Objects) cosmological simulations to study the effects of galaxy formation on key properties of dark matter (DM)…
Spectroscopic analysis of metal-poor stars from LAMOST: early results
Hai-Ning Li, Gang Zhao, Norbert Christlieb +5
We report on early results from a pilot program searching for metal-poor stars with LAMOST and follow-up high-resolution observation acquired with the MIKE spectrograph attached to…