A5049647959- Galaxies: Formation, Evolution, Phenomena
- Stellar, planetary, and galactic studies
- Astrophysics and Star Formation Studies
- Astronomy and Astrophysical Research
- Solar and Space Plasma Dynamics
- Optical Systems and Laser Technology
- Astro and Planetary Science
- Meteorological Phenomena and Simulations
- Advanced Measurement and Metrology Techniques
- Tribology and Lubrication Engineering
- Ionosphere and magnetosphere dynamics
- CCD and CMOS Imaging Sensors
- Spectroscopy and Laser Applications
Arizona State University
2021-2023
Yale University
2017-2020
Abstract We present new HST F275W, F475W, and F814W imaging of the region Coma cluster around D100, a spiral galaxy with remarkably long narrow (60 × 1.5 kpc) ram pressure–stripped gas tail. find blue sources coincident H α tail, which we identify as young stars formed in also determine they are likely to be unbound stellar complexes sizes ∼50–100 pc, disperse age. From comparison colors magnitudes simple population models, ages ranging from ∼1 50 Myr masses 10 3 ∼10 5 M ⊙ . that overall...
High resolution (1'' $\times$ 2'') ALMA CO(2-1) observations of the ram pressure stripped galaxy NGC 4402 in Virgo cluster show some clearest evidence yet for impacts on molecular ISM a galaxy. The eastern side at $r \sim 4.5$ kpc, upon which is incident, has large (width $\sim$1 height kpc above disk midplane) extraplanar plume gas and dust. Molecular region shows distinct non-circular motions direction pressure; kinematic offset up to 60 km s$^{-1}$ consistent with acceleration by...
We investigate the effects of ram pressure on molecular ISM in disk Coma cluster galaxy NGC 4921, via high resolution CO observations. present 6" CARMA CO(1-0) observations full disk, and 0.4" ALMA CO(2-1) leading quadrant, where is strongest. find evidence for compression dense interstellar medium (ISM) side, spatially correlated with intense star formation activity this zone. also detect gas along kiloparsec-scale filaments dust extending into otherwise stripped zone galaxy, seen HST...
Abstract The cluster environment has been shown to affect the molecular gas content of members, yet a complete understanding this often subtle effect hindered due lack detections over full parameter space galaxy star formation rates (SFRs) and stellar masses. Here, we stack CO(2–1) spectra z ∼ 1.6 galaxies explore average fractions both at lower mass (log( M * / ⊙ ) 9.6) further below star-forming main sequence (SFMS; ΔMS −0.9) than other literature studies; translates 3 σ limit ∼7 × 10 9...
Abstract We investigate the resolved kinematics of molecular gas, as traced by Atacama Large Millimeter/submillimeter Array in CO (2−1), 25 cluster member galaxies across three different clusters at a redshift z ∼ 1.6. This is first large-scale analysis gas this redshift. By separately estimating rotation curve approaching and receding sides each galaxy via kinematic modeling, we quantify difference total circular velocity to characterize overall asymmetry galaxy. 3/14 our sample that are...
Abstract The changes in colors across a galaxy are intimately connected to the galaxy’s formation, growth, quenching history, and dust content. A particularly important epoch growth of galaxies is near z ∼ 2, often referred as “cosmic noon,” where on average reach peak their star formation. We study population 125 cluster at 1.6 three Hubble Space Telescope filters, F475W, F625W, F160W, roughly corresponding rest-frame far-ultraviolet, near-ultraviolet, r band, respectively. By comparing...
The changes in colors across a galaxy are intimately connected to the galaxy's formation, growth, quenching history, and dust content. A particularly important epoch growth of galaxies is near $z \sim 2$ often referred as 'cosmic noon', where on average reach peak their star formation. We study population 125 cluster at 1.6$ three Hubble Space Telescope (HST) filters, F475W, F625W, F160W, roughly corresponding rest-frame FUV, NUV, r band, respectively. By comparing control sample 200 field...