A5113185704- Galaxies: Formation, Evolution, Phenomena
- Astronomy and Astrophysical Research
- Cosmology and Gravitation Theories
- Astrophysical Phenomena and Observations
- Agriculture and Rural Development Research
- Stellar, planetary, and galactic studies
- Geophysics and Gravity Measurements
- Meat and Animal Product Quality
- Statistics Education and Methodologies
- Gamma-ray bursts and supernovae
- Astrophysics and Star Formation Studies
- Agricultural Economics and Policy
University of Milano-Bicocca
2023-2024
Exploring supermassive black hole (SMBH) populations in protoclusters offers valuable insights into how environment affects SMBH growth. However, research on active galactic nuclei (AGN) within these areas is still limited by the small number of known at high redshift and availability associated deep X-ray observations. In order to understand different environments affect AGN triggering growth redshift, we investigated population field MUSE Quasar Nebula 01 (MQN01) protocluster z ≃ 3.25....
A direct link between the large-scale environment and galaxy properties is very well established in local Universe. However, little known about role of for growth before peak cosmic star formation history at z>3 due to rarity high-redshift, overdense structures. Using a combination deep, multiwavelength observations, including MUSE, JWST, Chandra, HST, ground-based imaging, we detected studied population star-forming galaxies field hyperluminous quasar z≈3.25 associated with giant Lyα...
Observations of z ≳ 6 quasars provide information on the early evolution most massive black holes (MBHs) and galaxies. Current observations, able to trace both gas stellar properties, reveal a population MBHs that is significantly more than expected from local MBH-stellar mass relation. The lies on, but mostly above, relation observed in nearby Universe. This suggests these objects grew very rapidly. To explain their presence when Universe was less 1 Gyr old assess physical conditions for...
We present new ALMA continuum and spectral observations of the MUSE Ultra Deep Field (MUDF), a $2 2$ arcmin^2 region with ultradeep multiwavelength imaging spectroscopy hosting two bright z≈ 3.22 quasars used to study intervening gas structures in absorption. Through blind search for dusty galaxies, we identified total seven high-confidence sources, six which have secure spectroscopic redshifts. estimate galaxy dust stellar masses ≃ 10^ astrosun M_ ⋆ ), as well star formation rates ($ SFR $)...
Observations of $z \gtrsim 6$ quasars provide information on the early evolution most massive black holes (MBHs) and galaxies. Current observations, able to trace both gas stellar properties, reveal a population MBHs that is significantly more than expected from local MBH-stellar mass relation. The lies on, but mostly above, relation observed in nearby Universe. This suggests these objects grew very rapidly. To explain their presence when Universe was less 1~Gyr old assess physical...
Exploring SMBH population in protoclusters offers valuable insights into how environment affects growth. However, research on AGN within these areas is still limited by the small number of known at high redshift and availability associated deep X-ray observations. To understand different environments affect triggering growth redshift, we investigated field MUSE Quasar Nebula 01 (MQN01) protocluster z ~3.25. This for hosting largest Lya nebula Borisova+16 sample, one overdensities...
We present new ALMA continuum and spectral observations of the MUSE Ultra Deep Field (MUDF), a $2\times 2$ arcmin$^2$ region with ultradeep multiwavelength imaging spectroscopy hosting two bright $z\approx 3.22$ quasars used to study intervening gas structures in absorption. Through blind search for dusty galaxies, we identified total seven high-confidence sources, six which secure spectroscopic redshifts. estimate galaxy dust stellar masses ($M_{\rm dust}\simeq 10^{7.8-8.6}\,M_{\odot}$,...
Observational studies showed that galaxy disks are already in place the first few billion years of universe. The early detected so far, with typical half-light radii 3 kiloparsecs at stellar masses around 10^11 M_sun for redshift z~3, significantly smaller than today's similar masses, agreement expectations from current models. Here, we report observations a giant disk z=3.25, when universe was only 2 old, radius 9.6 and mass 3.7^+2.6_-2.2x10^11 M_sun. This is larger any other...
A direct link between large-scale environment and galaxy properties is very well established in the local universe. However, little known about role of for growth before peak cosmic star formation history at $z>3$ due to rarity high-redshift, overdense structures. Using a combination deep, multiwalength observations, including MUSE, JWST, Chandra, HST ground-based imaging, we detect study population star-forming galaxies field hyperluminous quasar $z\approx3.25$ associated with giant...