A5089967026- Stellar, planetary, and galactic studies
- Astronomy and Astrophysical Research
- Astrophysics and Star Formation Studies
- Gamma-ray bursts and supernovae
- Image and Object Detection Techniques
- History and Developments in Astronomy
Osservatorio Astronomico di Padova
2023
University of Padua
2022
We use images collected with the near-infrared camera (NIRCam) on board James Webb Space Telescope and Hubble (HST) to investigate multiple populations at bottom of main sequence (MS) 47 Tucanae. The F115W vs. F115W-F322W2 CMD from NIRCam shows that, below knee, MS stars span a wide color range, where majority M-dwarfs exhibit blue colors, tail are distributed toward red. A similar pattern is observed F160W F110W-F160W HST, also visible in optical F606W F606W-F814W CMD. narrow faint masses...
Recent work on metal-intermediate globular clusters (GCs) with [Fe/H]=$-1.5$ and $-0.75$ has illustrated the theoretical behavior of multiple populations in photometric diagrams obtained James Webb Space Telescope (JWST). These results are confirmed by observations among M-dwarfs 47 Tucanae. Here, we explore metal-poor GCs [Fe/H]=$-$2.3. We take advantage synthetic spectra isochrones that account for chemical composition to identify separate distinct stellar GCs. derived high-precision...
Filament identification became a key step to tackling fundamental problems in various fields of Astronomy. Nevertheless, existing filament algorithms are critically user-dependent and require individual parametrization. In this study, we aimed at adapting the neural networks approach elaborate best model for that would not fine-tuning given astronomical map. First, created training samples based on most commonly used maps interstellar medium obtained by Planck Herschel space telescopes...
Recent work on metal-intermediate globular clusters (GCs) with [Fe/H]=$-1.5$ and $-0.75$ has illustrated the theoretical behavior of multiple populations in photometric diagrams obtained James Webb Space Telescope (JWST). These results are confirmed by observations among M-dwarfs 47 Tucanae. Here, we explore metal-poor GCs [Fe/H]=$-$2.3. We take advantage synthetic spectra isochrones that account for chemical composition to identify separate distinct stellar GCs. derived high-precision...