Tony D. Weinbeck
A5043523835- Stellar, planetary, and galactic studies
- Astronomy and Astrophysical Research
- Galaxies: Formation, Evolution, Phenomena
- Astrophysics and Star Formation Studies
- Neutrino Physics Research
- Quantum, superfluid, helium dynamics
- Computational Physics and Python Applications
- Chemical Reactions and Isotopes
- Molecular Spectroscopy and Structure
- Astronomical Observations and Instrumentation
University of Wyoming
2024
Abstract The exquisite angular resolution and sensitivity of JWST are opening a new window for our understanding the Universe. In nearby galaxies, observations revolutionizing first phases star formation dusty interstellar medium. Nineteen local galaxies spanning range properties morphologies across star-forming main sequence have been observed as part PHANGS-JWST Cycle 1 Treasury program at spatial scales ∼5–50 pc. Here, we describe pjpipe , an image-processing pipeline developed that wraps...
Abstract We present a comparison of observed polycyclic aromatic hydrocarbon (PAH) feature ratios in 19 nearby galaxies with grid theoretical expectations for near- and mid-infrared dust emission. The PAH are drawn from Cycle 1 JWST observations measured 7224 stellar clusters 29,176 associations which we have robust ages mass estimates Hubble Space Telescope five-band photometry. Though there galaxy-to-galaxy variations, the largely agree models, particularly those that skewed toward more...
Abstract Combining Atacama Large Millimeter/submillimeter Array CO(2–1) mapping and JWST near- mid-infrared imaging, we characterize the relationship between polycyclic aromatic hydrocarbon (PAH) emission at ≈100 pc resolution in 70 nearby star-forming galaxies. Leveraging a new Cycle 2 Treasury program targeting galaxies, expand sample size by more than an order of magnitude compared to previous CO–PAH comparisons. In regions galaxies where most gas is likely be molecular, find strong...
We present a comparison of observed polycyclic aromatic hydrocarbon (PAH) feature ratios in 19 nearby galaxies with grid theoretical expectations for near- and mid-infrared dust emission. The PAH are drawn from Cycle 1 JWST observations measured 7224 stellar clusters 29176 associations which we have robust ages mass estimates HST five-band photometry. Though there galaxy-to-galaxy variations, the largely agree models, particularly those that skewed toward more ionized larger size...
Abstract Deuteration of hydrocarbon material, including polycyclic aromatic hydrocarbons (PAHs), has been proposed to account for the low gas-phase abundances D in interstellar medium (ISM). JWST spectra four star-forming regions M51 show an emission feature, with central wavelength ∼4.647 μ m and FWHM 0.0265 m, corresponding C–D stretching mode aliphatic hydrocarbons. The emitting material is estimated have (D/H) aliph. ≈0.17 ± 0.02—a factor ∼10 4 enrichment relative overall ISM. On ∼50 pc...
Deuteration of hydrocarbon material, including polycyclic aromatic hydrocarbons (PAHs), has been proposed to account for the low gas-phase abundances D in interstellar medium. JWST spectra four star-forming regions M51 show an emission feature, with central wavelength $\sim$4.647$\mu$m and FWHM 0.0265$\mu$m, corresponding C-D stretching mode aliphatic hydrocarbons. The emitting material is estimated have (D/H)$_{\rm aliph}\approx 0.17\pm0.02$ -- a factor $\sim$$10^4$ enrichment relative...
The exquisite angular resolution and sensitivity of JWST is opening a new window for our understanding the Universe. In nearby galaxies, observations are revolutionizing first phases star formation dusty interstellar medium. Nineteen local galaxies spanning range properties morphologies across star-forming main sequence have been observed as part PHANGS-JWST Cycle 1 Treasury program at spatial scales $\sim$5-50pc. Here, we describe pjpipe, an image processing pipeline developed that wraps...