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BEAGLE-AGN I: simultaneous constraints on the properties of gas in star-forming and AGN narrow-line regions in galaxies
(2024-01-01)
We present the addition of nebular emission from the narrow-line regions (NLR) surrounding active galactic nuclei (AGNs) to beagle (BayEsian Analysis of GaLaxy sEds). Using a set of idealized spectra, we fit to a set of ...
Low-mass bursty galaxies in JADES efficiently produce ionizing photons and could represent the main drivers of reionization
(2024-01-01)
We use deep imaging from the JWST Advanced Deep Extragalactic Survey (JADES) to study the evolution of the ionizing photon production efficiency, ζion. We estimate ζion for a sample of 677 galaxies at z ∼4-9 using NIRCam ...
The impact of binary stars on the dust and metal evolution of galaxies
(2024-01-01)
We present detailed implementations of (i) binary stellar evolution (BSE; using binary_c) and (ii) dust production and destruction into the cosmological semi-analytic galaxy evolution simulation, l-galaxies. This new version ...
Ultracool Spectroscopic Outliers in Gaia DR3
(2024-01-01)
Gaia DR3 provided a first release of RP spectra and astrophysical parameters for ultracool dwarfs (UCDs). We used these Gaia RP spectra and astrophysical parameters to select the most outlying UCDs. These objects have ...
Optimal metallicity diagnostics for MUSE observations of low-z galaxies
(2024-01-01)
The relatively red wavelength range (4800-9300 Å) of the VLT Multi Unit Spectroscopic Explorer (MUSE) limits which metallicity diagnostics can be used; in particular excluding those requiring the []λλ3726,29 doublet. We ...
The impact of supernova feedback on the mass-metallicity relations
(2024-01-01)
Metallicity is a fundamental physical property that strongly constrains galaxy formation and evolution. The formation of stars in galaxies is suppressed by the energy released from supernova explosions and can be enhanced ...
New Eruptive YSOs from SPICY and WISE
(2023-12-28)
This work presents four high-amplitude variable YSOs (≃3 mag at near-or mid-IR wavelengths) arising from the SPICY catalog. Three outbursts show a duration that is longer than 1 year, and are still ongoing. And additional ...
Accretion Disk Wind of Hercules X-1 during the Short High State
(2023-12-05)
Hercules X-1 is a nearly edge-on X-ray binary with a warped, precessing accretion disk, which manifests through a 35-day cycle of alternating High and Low flux states. This disk precession introduces a changing line of ...
XUE: Molecular Inventory in the Inner Region of an Extremely Irradiated Protoplanetary Disk
(2023-12-01)
We present the first results of the eXtreme UV Environments (XUE) James Webb Space Telescope (JWST) program, which focuses on the characterization of planet-forming disks in massive star-forming regions. These regions are ...
ALMA 400 pc Imaging of a z = 6.5 Massive Warped Disk Galaxy
(2023-12-01)
We present 0.″075 (≈400 pc) resolution Atacama Large Millimeter/submillimeter Array (ALMA) observations of the [C ii] and dust continuum emission from the host galaxy of the z = 6.5406 quasar, P036+03. We find that the ...