169 citations · 450 across the 16 of their papers we have counts for
9 papers · 1 filter
Magnesium isotope ratios in Milky Way and dwarf galaxy stars
M. McKenzie, S. Monty, D. Yong +8
Under the assumption of hierarchical galaxy formation, dwarf galaxies are the closest existing analogues to the high-redshift protogalaxies that merged to form the Milky Way. These…
The aluminium-26 distribution in a cosmological simulation of a Milky Way-type Galaxy
B. Wehmeyer, C. Kobayashi, A. Yagüe López +1
Context. The 1.8 MeV gamma-rays corresponding to the decay of the radioactive isotope Al-26 (with a half-life of 0.72 Myr) have been observed by the SPI detector on the INTEGRAL sp…
Supernova dust synthesis --- Carbonaceous dust in the very early universe
Gen Chiaki, Takaya Nozawa, Chiaki Kobayashi +1
Recent observations have revealed the spectral feature of carbonaceous grains even in a very distant galaxy. We develop a state-of-the-art dust synthesis code by self-consistently…
Core to Cosmic Edge: SIMBA-C's New Take on Abundance Profiles in the Intragroup Medium at z = 0
Aviv Padawer-Blatt, Zhiwei Shao, Renier T. Hough +9
We employ the SIMBA-C cosmological simulation to study the impact of its upgraded chemical enrichment model (Chem5) on the distribution of metals in the intragroup medium (IGrM). W…
Cloud-scale elemental abundance variations and the CO-to-dust-mass conversion factor in M31
Chloe Bosomworth, Jan Forbrich, Charles J. Lada +3
From a spectroscopic survey of candidate H II regions in the Andromeda galaxy (M31) with MMT/Hectospec, we have identified 294 H II regions using emission line ratios and calculate…
\texttt{Simba}-\texttt{C}: the evolution of the thermal and chemical properties in the intragroup medium
Renier T. Hough, Zhiwei Shao, Weiguang Cui +5
The newly updated \texttt{GIZMO} and \texttt{Simba} based simulation, \texttt{Simba-C}, with its new stellar feedback, chemical enrichment, and recalibrated AGN feedback, allows fo…
Understanding stellar populations in thin & thick discs of edge-on galaxies with MUSE -- I. The case of the reignited S0 galaxy ESO 544-27
Devang Somawanshi, Souradeep Bhattacharya, Manish Kataria +1
Edge-on galaxies act as the best laboratories to understand the origin of thin and thick discs in galaxies. Measurement of spatially resolved stellar population properties in such…
On the /Fe bimodality of the M31 disks
Chiaki Kobayashi, Souradeep Bhattacharya, Magda Arnaboldi +1
An outstanding question is whether the /Fe bimodality exists in disk galaxies other than in the Milky Way. Here we present a bimodality using our state-of-the-art galactic chemi…
Extremely metal-poor stars from the cosmic dawn in the bulge of the Milky Way
L. M. Howes, A. R. Casey, M. Asplund +22
The first stars are predicted to have formed within 200 million years after the Big Bang, initiating the cosmic dawn. A true first star has not yet been discovered, although stars…