A5025665905- Galaxies: Formation, Evolution, Phenomena
- Astronomy and Astrophysical Research
- Radio Astronomy Observations and Technology
- Gamma-ray bursts and supernovae
- Astrophysics and Star Formation Studies
- Stellar, planetary, and galactic studies
- Astrophysics and Cosmic Phenomena
- Photocathodes and Microchannel Plates
- Spectroscopy and Laser Applications
- Advanced Combustion Engine Technologies
- Superconducting and THz Device Technology
- Scientific Research and Discoveries
- Astrophysical Phenomena and Observations
Istituto di Radioastronomia di Bologna
2023-2024
Scuola Internazionale Superiore di Studi Avanzati
2022-2024
Osservatorio di Astrofisica e Scienza dello Spazio
2024
University of Bologna
2023
Abstract The star formation rate density (SFRD) history of the universe is well constrained up to redshift z ∼ 2. At earlier cosmic epochs, picture has been largely inferred from UV-selected galaxies (e.g., Lyman-break galaxies; LBGs). However, rates LBGs strongly depend on assumed dust extinction correction, which not at high , while observations in radio domain are affected by this issue. In work we measure SFRD a 1.4 GHz selected sample ∼600 GOODS-N field ∼3.5. We take into account...
Abstract In the last decades, an increasing scientific interest has been growing in elusive population of dark (i.e., lacking optical/near-IR, hereafter NIR, counterpart) dusty star-forming galaxies (DSFGs). Although extremely promising for their likely contribution to cosmic star formation rate density (SFRD) and possible role evolution first massive passive around z ∼ 3, difficulty selecting statistically significant samples DSFGs is limiting potentialities. This work presents panchromatic...
Aims. We leverage the largest available Atacama Large Millimeter/submillimeter Array (ALMA) survey from archive (A 3 COSMOS) to study infrared luminosity function and dust-obscured star formation rate density of (sub)millimeter galaxies z = 0.5 − 6. Methods. The A COSMOS utilizes all publicly ALMA data in field therefore has inhomogeneous coverage terms observing wavelength depth. In order derive functions densities, we applied a newly developed method that corrects statistics an...
We introduce the Serendipitous H-ATLAS-fields Observations of Radio Extragalactic Sources (SHORES) multiple pencil beam survey that observed at 2.1 GHz with Australia Telescope Compact Array (ATCA) 29 fields in total intensity and polarization within Herschel-ATLAS Southern Galactic Field. This paper presents observations, calibration analysis 27 shallow cover an overall area $\sim 26$ square degree increasing sensitivity towards phase centers each pointing according to ATCA 22 m dish...
Abstract We introduce the Serendipitous H-ATLAS-fields Observations of Radio Extragalactic Sources (SHORES) multiple pencil beam survey that observed at 2.1 GHz with Australia Telescope Compact Array (ATCA) 29 fields in total intensity and polarization within Herschel-ATLAS Southern Galactic Field. This paper presents observations, calibration analysis 27 shallow cover an overall area ∼26 square degree increasing sensitivity towards phase centers each pointing according to ATCA 22 m dish...
We present the first follow-up with JWST of radio-selected near-infrared (NIR)-faint galaxies as part COSMOS-Web survey. By selecting detected at radio frequencies (S_ 3 GHz >11.5 μJy; i.e., S/N$>5$) and faint counterparts NIR wavelengths (F150W$>26.1$ mag), we collected a sample 127 likely dusty star-forming (DSFGs). estimated their physical properties through SED fitting, computed luminosity function for these types sources contribution to total cosmic star formation rate density....
We present an updated repository of sub-mJy extragalactic radio source counts between 150 MHz and 10 GHz, incorporating recent advances in surveys observational techniques. By compiling refining previous datasets, we provide a comprehensive catalog that enhances the understanding faint radio-source populations, including Dusty Star-Forming Galaxies (DSFGs) Radio-Quiet Active Galactic Nuclei (RQAGNs), from intermediate to high redshifts. Our analysis accounts for biases, such as resolution...
We present high-resolution ($\lesssim0.1$arcsec) ALMA observations of the strongly-lensed galaxy HATLASJ113526.2-01460 at redshift $z\sim3.1$ discovered in Gama 12$^{\rm th}$ field Herschel-ATLAS survey. The gravitationally lensed system is remarkably peculiar that neither background source nor foreground lens show a clearly detected optical/NIR emission. perform accurate modeling and morphology reconstruction three different (sub-)mm continuum bands, C[II] CO(8-7) spectral lines. indicates...
Abstract About 12 billion years ago, the Universe was first experiencing light again after dark ages, and galaxies filled environment with stars, metals, dust. How efficient this process? fast did these primordial form stars dust? We can answer questions by tracing star formation rate density (SFRD) back to its widely unknown high-redshift tail, traditionally observed in near-infrared (NIR), optical, UV bands. Thus, objects a large amount of dust were missing. aim fill knowledge gap studying...
Fostered by upcoming data from new generation observational campaigns, we are about to enter a era for the study of how galaxies form and evolve. The unprecedented quantity that will be collected, distances only marginally grasped up now, require analysis tools designed target specific physical peculiarities observed sources handle extremely large datasets. One powerful method investigate complex astrophysical processes govern properties is model their spectral energy distribution (SED) at...
In this paper, we investigate the benefits of teaming up data from radio to far-infrared (FIR) regime for characterization dusty star-forming galaxies (DSFGs). These are thought be progenitors local massive quiescent and play a pivotal role in reconstruction cosmic star formation rate density high redshift. Due their dust-enshrouded nature, DSFGs often invisible near-infrared/optical/UV bands. Therefore, they necessitate observations at longer wavelengths, primarily FIR band, where dust...
Abstract We investigate the radio-far infrared (FIR) correlation for a sample of 28 bright high-redshift (1 ≲ z 4) star-forming galaxies selected in FIR from Herschel-ATLAS fields as candidates to be strongly gravitationally lensed. The radio information comes either high sensitivity dedicated ATCA observations at 2.1 GHz or cross-matches with FIRST survey 1.4 GHz. By taking advantage source brightness possibly enhanced by lensing magnification, we identify weak evolution redshift out 4...
Abstract We report Atacama Large Millimeter/submillimeter Array (ALMA) high-resolution (≲0.3″) observations of water emission lines p -H 2 O(2 02 − 1 11 ), o O(3 21 3 12 O(4 22 4 13 in the strongly lensed galaxy HATLASJ113526.2-01460 at redshift z ∼3.1. From lensing-reconstructed maps and line profiles, we infer general physical properties interstellar medium (ISM) molecular clouds where arise. find that vapor o- H ) are mainly excited by far-infrared (FIR) pumping from dust radiation a warm...
Gravitational lensing, a compelling physical phenomenon, offers unique avenue to investigate the morphology and properties of distant faint celestial objects. This paper seeks provide comprehensive overview current state observations concerning strongly lensed Dusty Star-Forming Galaxies. Emphasis is placed on pivotal role played by cutting-edge facilities like James Webb Space Telescope Square Kilometer Array Observatory. These advanced instruments, operating at disparate ends...
We present the first spectroscopic ALMA follow-up for a pilot sample of nine radio-selected near-IR-dark galaxies in COSMOS field. These sources were initially selected as radio-detected ( S 3 GHz > 12.65 μJy) without an optical or near-IR (NIR) counterpart COSMOS2015 catalog Ks ≳ 24.7 mag), and just three them subsequently detected deeper COSMOS2020. Several studies highlighted that this selection could provide population highly dust-obscured, massive, star-bursting galaxies. With these...
Bolstered by upcoming data from new-generation observational campaigns, we are about to enter a new era in the study of how galaxies form and evolve. The unprecedented quantity that will be collected distances have only marginally been grasped up now require analytical tools designed target specific physical peculiarities observed sources handle extremely large datasets. One powerful method investigate complex astrophysical processes govern properties is model their spectral energy...
Gravitational lensing, a compelling physical phenomenon, offers unique avenue to investigate the morphology and properties of distant faint celestial objects. This paper seeks provide comprehensive overview current state observations concerning strongly lensed Dusty Star-Forming Galaxies. Emphasis is placed on pivotal role played by cutting-edge facilities like James Webb Space Telescope Square Kilometer Array Observatory. These advanced instruments operating at two opposite ends...
In this paper, we investigate the benefits of teaming up data from radio to far- 1 infrared (FIR) regime for characterization Dusty Star-Forming Galaxies (DSFGs). These galaxies 2 are thought be star-forming progenitors local massive quiescent galaxies, and play a pivotal 3 role in reconstruction cosmic star formation rate density high redshift. Due their 4 dust-enshrouded nature, DSFGs often invisible near-infrared/Optical/UV bands. Therefore, 5 they necessitate observations at longer...
Aims: We leverage the largest available Atacama Large Millimetre/submillimetre Array (ALMA) survey from archive (A$^3$COSMOS) to study infrared luminosity function and dust-obscured star formation rate density of sub-millimeter/millimeter (sub-mm/mm) galaxies $z=0.5\,-\,6$. Methods: The A$^3$COSMOS utilizes all publicly ALMA data in COSMOS field, therefore having inhomogeneous coverage terms observing wavelength depth. In order derive functions densities, we apply a newly developed method...
About 12 billion years ago, the Universe was first experiencing light again after dark ages, and galaxies filled environment with stars, metals dust. How efficient this process? fast did these primordial form stars dust? We can answer questions by tracing Star Formation Rate Density (SFRD) back to its widely unknown high redshift tail, traditionally observed in Near-InfraRed (NIR), Optical UV bands. Thus, objects a amount of dust were missing. aim fill knowledge gap studying Radio Selected...
In the last decades, an increasing scientific interest has been growing in elusive population of "dark" (i.e. lacking optical/NIR counterpart) Dusty Star-Forming Galaxies (DSFGs). Although extremely promising for their likely contribution to cosmic Star Formation Rate Density and possible role evolution first massive passive galaxies around $z\sim3$, difficulty selecting statistically significant samples dark DSFGs is limiting potentialities. This work presents panchromatic study a sample...
We present high-resolution ($\lesssim0.1$arcsec) ALMA observations of the strongly-lensed galaxy HATLASJ113526.2-01460 at redshift $z\sim3.1$ discovered in Gama 12$^{\rm th}$ field Herschel-ATLAS survey. The gravitationally lensed system is remarkably peculiar that neither background source nor foreground lens show a clearly detected optical/NIR emission. perform accurate modeling and morphology reconstruction three different (sub-)mm continuum bands, C[II] CO(8-7) spectral lines. indicates...