A5088147315- Galaxies: Formation, Evolution, Phenomena
- Astronomy and Astrophysical Research
- Astrophysical Phenomena and Observations
- Astronomical Observations and Instrumentation
- Stellar, planetary, and galactic studies
- Astrophysics and Star Formation Studies
- Radio Astronomy Observations and Technology
- Gamma-ray bursts and supernovae
- Scientific Research and Discoveries
- Computational Physics and Python Applications
- Advanced X-ray Imaging Techniques
- Particle Accelerators and Free-Electron Lasers
- Astrophysics and Cosmic Phenomena
Osservatorio Astronomico di Padova
2024-2025
University of Bologna
2024-2025
Istituto Nazionale di Fisica Nucleare, Galileo Galilei Institute for Theoretical Physics
2024
Institute for Research in Fundamental Sciences
2021
University of Padua
2021
Kharazmi University
2021
Abstract Massive quiescent galaxies in the young Universe are expected to be quenched rapidly, but it is unclear whether they all experience starbursts before quenching and what physical mechanism drives rapid quenching. We study 14 massive ( <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" overflow="scroll"> <mml:mi>log</mml:mi> <mml:mo stretchy="false">(</mml:mo> <mml:msub> <mml:mrow> <mml:mi>M</mml:mi> </mml:mrow> <mml:mo>⋆</mml:mo> </mml:msub> stretchy="true">/</mml:mo>...
Abstract We analyze ionized gas emission lines in deep rest-frame optical spectra of 14 massive ( <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" overflow="scroll"> <mml:mi>log</mml:mi> <mml:msub> <mml:mrow> <mml:mi>M</mml:mi> </mml:mrow> <mml:mo>*</mml:mo> </mml:msub> <mml:mo>></mml:mo> <mml:mn>10.2</mml:mn> </mml:math> M ⊙ ) quiescent galaxies at redshifts 1.7 < z 3.5 observed with JWST/NIRSpec by the Blue Jay survey. Robust detection 71% sample indicates presence ongoing...
Abstract The chemical evolution of galaxies is shaped by their star formation histories and the exchange gas with environments. Metallicity provides key insights into these processes, reflecting interplay between flows. A fundamental aspect this mass–metallicity relation, which captures strong correlation a galaxy stellar mass (M⋆) its gas-phase oxygen abundance. In study, we use MUSE observations to analyze star-forming disc in 12 clusters within redshift range 0.3 &lt; z 0.5. Galaxies...
ABSTRACT We undertake a comprehensive investigation into the distribution of in situ stars within Milky Way-like galaxies, leveraging TNG50 simulations and comparing their predictions with data from H3 survey. Our analysis reveals that 28% galaxies demonstrate reasonable agreement H3, while only 12% exhibit excellent alignment profiles, regardless specific spatial cut employed to define stars. To uncover underlying factors contributing deviations between distributions, we scrutinize...
Extraplanar tails of ionized-stripped gas, extending up to several tens kiloparsecs beyond the stellar disk, are often observed in ram-pressure-stripped (RPS) galaxies low-redshift clusters. Recent studies have also identified similar at high redshifts, and we present here first analysis chemical composition such local Universe. Specifically, examined distribution ionized gas metallicity RPS Abell 2744 ( z = 0.308) 370 0.375) clusters as part MUSE-GTO program. We investigated spatially...
We analyze ionized gas emission lines in deep rest-frame optical spectra of 16 quiescent galaxies at redshift $1.7<z<3.5$ observed with JWST/NIRSpec by the Blue Jay survey. Robust detection $75\%$ sample indicates presence ongoing ionizing sources this passive population. The H$\alpha$ line luminosities confirm that population is quiescent, star formation rates are least ten times lower than main sequence formation. clearly separate from star-forming diagnostic diagrams, and occupies a...
The Square Kilometer Array (SKA) is expected to detect high-redshift galaxies with star formation rates (SFRs) up two orders of magnitude lower than Herschel surveys and will thus boost the ability radio astronomy study extragalactic sources. tight infrared-radio correlation offers possibility using emission as a dust-unobscured diagnostic. However, physics governing link between poorly understood, recent studies have pointed differences in exact calibration required when be used tracer. We...
Extraplanar tails of ionized stripped gas, extending up to several tens kiloparsecs beyond the stellar disk, are often observed in ram-pressure (RPS) galaxies low redshift clusters. Recent studies have identified similar also at high and we here present first analysis chemical composition such local universe. Specifically, examine distribution gas metallicity RPS Abell 2744 (z=0.308) 370 (z=0.375) clusters as part MUSE-GTO program. We investigate spatially-resolved global metallicities...
Chemical abundances are key tracers of the cycle baryons driving evolution galaxies. Most measurements interstellar medium (ISM) abundance and metallicity gradients in galaxies based, however, on model-dependent strong-line methods. Direct chemical can be obtained via detection weak auroral lines, but such lines too faint to detected across large spectroscopic surveys local Universe. In this work we overcome limitation obtain from direct method by stacking spectra MaNGA integral field...
Chemical abundances are key tracers of the cycle baryons that drives evolution galaxies. Most measurements interstellar medium and metallicity gradients in galaxies are, however, based on model-dependent strong-line methods. Direct chemical can be obtained via detection weak auroral lines, but such lines too faint to detected by large spectroscopic surveys local Universe. In this work we overcome limitation obtain from direct-method stacking spectra MaNGA integral field spectroscopy survey....
We undertake a comprehensive investigation into the distribution of insitu stars within Milky Way-like galaxies, leveraging TNG50 simulations and comparing their predictions with data from H3 survey. Our analysis reveals that 28% galaxies demonstrate reasonable agreement H3, while only 12% exhibit excellent alignment in profiles, regardless specific spatial cut employed to define stars. To uncover underlying factors contributing deviations between distributions, we scrutinize correlation...