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How bad could it be? Modelling the 3D complexity of the polarised dust signal using moment expansion

The variation of the physical conditions across the three dimensions of our Galaxy is a major source of complexity for the modelling of the foreground signal facing the cosmic microwave background (CMB). In the present work, we demonstrate that the spin-moment expansion formalism provides a powerful framework to model and understand this complexity, and we put special focus on the effects that arise from variations of the physical conditions along each line of sight on the sky. We performed t...

Full-sky Models of Galactic Microwave Emission and Polarization at Sub-arcminute Scales for the Python Sky Model

Polarized foreground emission from the Galaxy is one of the biggest challenges facing current and upcoming cosmic microwave background (CMB) polarization experiments. We develop new models of polarized Galactic dust and synchrotron emission at CMB frequencies that draw on the latest observational constraints; that employ the “polarization fraction tensor” framework to couple intensity and polarization in a physically motivated way; and that allow for stochastic realizations of small-scale str...

Optimal Transport Between Algebraic Hypersurfaces

What is the optimal way to deform a projective hypersurface into another one? In this paper we will answer this question adopting the point of view of measure theory, introducing the optimal transport problem between complex algebraic projective hypersurfaces. First, a natural topological embedding of the space of hypersurfaces of a given degree into the space of measures on the projective space is constructed. Then, the optimal transport problem between hypersurfaces is defined through a ...

Enhanced mass loss of very massive stars: Impact on the evolution, binary processes, and remnant mass spectrum

Very massive stars (VMS) play a fundamental role in astrophysics. Their powerful stellar winds, which dictate their evolution, supernovae, and fate as black holes (BHs), are a key uncertainty, as evidence suggests their mass-loss rates may exceed standard predictions. To address this, we investigated the effect of enhanced winds on the single and binary VMS evolution by implementing new stellar wind prescriptions in the stellar evolution code parsec v2.0 and in the binary population synthesis...

The initial mass-remnant mass relation for core collapse supernovae

Context. The first direct detection of gravitational waves in 2015 marked the beginning of a new era for the study of compact objects. Upcoming detectors, such as the Einstein Telescope, are expected to add thousands of binary coalescences to the list. However, from a theoretical perspective, our understanding of compact objects is hindered by many uncertainties, and a comprehensive study of the nature of stellar remnants from core-collapse supernovae is still lacking. Aims. In this work, we ...

Scopri
Tipologia
  • 1 Article11098
  • 8 Thesis2505
  • 4 Conference object779
  • 2 Book part336
  • 3 Book62
  • 5 Other26
  • 6 Patent22
  • 7 Trusteeship14
Autore
  • Baccigalupi, Carlo365
  • Legname, Giuseppe364
  • Danese, Luigi321
  • Calabrese, Pasquale277
  • Bressan, Alessandro264
  • Lapi, Andrea255
  • Rozza, Gianluigi254
  • Viel, Matteo250
  • Liberati, Stefano237
  • Baroni, Stefano227
Data di pubblicazione
  • In corso di stampa14
  • 2020 - 20263454
  • 2010 - 20195467
  • 2000 - 20093510
  • 1990 - 19991686
  • 1980 - 1989621
  • 1970 - 197976
  • 1962 - 196914
Editore
  • SISSA2458
  • Springer122
  • World Scientific46
  • Elsevier24
  • IEEE21
  • Cambridge University Press20
  • Oxford University Press19
  • Springer International Publishing14
  • American Institute of Physics13
  • Sissa Medialab Srl12
Rivista
  • JOURNAL OF HIGH ENERGY PHYSICS505
  • MONTHLY NOTICES OF THE ROYAL ASTR...447
  • ASTRONOMY & ASTROPHYSICS418
  • PHYSICAL REVIEW LETTERS406
  • PHYSICAL REVIEW. B, CONDENSED MAT...339
  • JOURNAL OF COSMOLOGY AND ASTROPAR...241
  • THE ASTROPHYSICAL JOURNAL241
  • PHYSICAL REVIEW. B207
  • PHYSICAL REVIEW D, PARTICLES, FIE...197
  • JOURNAL OF STATISTICAL MECHANICS:...196
Serie
  • AIP CONFERENCE PROCEEDINGS19
  • LECTURE NOTES IN PHYSICS14
  • LECTURE NOTES IN COMPUTATIONAL SC...13
  • PROCEEDINGS OF SPIE, THE INTERNAT...13
  • PROCEEDINGS OF THE IEEE CONFERENC...12
  • LECTURE NOTES IN COMPUTER SCIENCE8
  • LECTURE NOTES IN MATHEMATICS8
  • ASTRONOMICAL SOCIETY OF THE PACIF...7
  • SPRINGER INDAM SERIES7
  • ADVANCES IN NEURAL INFORMATION PR...5
Settore disciplinare
  • Settore FIS/05 - Astronomia e Ast...2021
  • Settore FIS/03 - Fisica della Mat...1769
  • Settore FIS/02 - Fisica Teorica, ...1646
  • Settore MAT/05 - Analisi Matematica765
  • Settore BIO/09 - Fisiologia568
  • Settore MAT/07 - Fisica Matematica539
  • Settore M-PSI/02 - Psicobiologia ...424
  • Settore MAT/08 - Analisi Numerica335
  • Settore MAT/03 - Geometria278
  • Settore FIS/07 - Fisica Applicata...188
Keyword
  • Humans135
  • Animals104
  • Cosmic background radiation89
  • dark matter81
  • High Energy Physics - Theory81
  • Cosmology: observations78
  • General Relativity and Quantum Co...75
  • galaxies: evolution73
  • Astronomy and Astrophysics72
  • Galaxies69
Lingua
  • eng13625
  • ita436
  • Inglese146
  • fre12
  • Italiano7
  • und5
  • rus2
  • ger1
  • spa1
Accesso al fulltext
  • open5988
  • no fulltext4896
  • reserved3610
  • partially open317
  • embargoed31