303 citations
- University of KentuckyUS12 papers
- Cornell UniversityUS9 papers
- Hebrew University of JerusalemIL6 papers
- National Institute of Standards and TechnologyUS6 papers
- University of GenevaCH5 papers
- Joint Quantum InstituteUS4 papers
- West Chester UniversityUS4 papers
- California Institute of TechnologyUS3 papers
- Joint Institute for Laboratory AstrophysicsUS3 papers
- Leiden UniversityNL3 papers
- Microsoft (United States)US3 papers
- Monash UniversityAU3 papers
7 papers · 1 filter
Probing Dust Composition in Distant Galaxies with JWST Mid-IR Spectroscopy of Quasars with Foreground 2175 Å Absorbers II. Measurements of Grain Composition and Extinction Properties
Viacheslav V. Klimenko, Varsha P. Kulkarni, Monique C. Aller
We present results from a mini-survey of dust spectral features arising in galaxies at redshifts in our James Webb Space Telescope (JWST) mid-infrared spectra of ph…
Metal-Poor Stars in the MW Disk: Resonant Cooling of Vertical Oscillations of Halo Stars in Barred Galaxies
Xingchen Li, Isaac Shlosman, Daniel Pfenniger +1
Using numerical simulations of barred disk galaxy embedded in nonspinning and spinning dark matter (DM) halos, we present a novel mechanism of `cooling' the vertical oscillations o…
Evolution of Stellar Bars in Spinning Dark Matter Halos and Stellar Bulges
Xingchen Li, Isaac Shlosman, Daniel Pfenniger +1
We use high-resolution numerical simulations to follow the barred disk evolution in a suite of models with progressively more massive stellar bulges, with bulge-to-total (diskbu…
Stellar Bars in Spinning Halos: Delayed Buckling and Absence of Slowdown
Xingchen Li, Isaac Shlosman, Clayton Heller +1
We use high resolution numerical simulations in order to analyze the stellar bar evolution in spinning dark matter (DM) halos. Previous works have shown that the halo spin has a su…
The Origin of Buckling Instability in Galactic Bars: Searching for the Scapegoat
Xingchen Li, Isaac Shlosman, Daniel Pfenniger +1
The buckling process in stellar bars is full of unsolved issues. We analyze the origin of the buckling instability in stellar bars using high-resolution N-body simulations. Previou…
Far-Infrared Line Diagnostics: Improving N/O Abundance Estimates for Dusty Galaxies
Bo Peng, Cody Lamarche, Gordon Stacey +8
The Nitrogen-to-Oxygen (N/O) abundance ratio is an important diagnostic of galaxy evolution since the ratio is closely tied to the growth of metallicity and the star formation hist…