![Giulio Fabbian](https://profiles-cardiff.imgix.net/attachments/3740?w=200&h=200&auto=format&crop=faces&fit=crop&q=90")
Trosolwyg
Rwy'n cosmolegydd sydd â diddordeb mewn astudio problemau agored mewn ffiseg sylfaenol ac astroffiseg gydag arsylwadau o'r Cefndir Microdon Cosmig a strwythurau graddfa fawr y bydysawd trwy'r effaith lens disgyrchiant.
Cyhoeddiad
2024
- Zhou, A. J., Li, Y., Dodelson, S., Mandelbaum, R., Zhang, Y., Li, X. and Fabbian, G. 2024. A Hamiltonian, post-Born, three-dimensional, on-the-fly ray tracing algorithm for gravitational lensing. Journal of Cosmology and Astroparticle Physics 2024(10), article number: 69. (10.1088/1475-7516/2024/10/069)
- Giardiello, S. et al. 2024. The Simons Observatory: impact of bandpass, polarization angle and calibration uncertainties on small-scale power spectrum analysis. Journal of Cosmology and Astroparticle Physics 2024, article number: 8. (10.1088/1475-7516/2024/09/008)
- Braithwaite, C. et al. 2024. A study on the performance of half-wave plates designed for sub-mm studies. Presented at: SPIE Astronomical Telescopes + Instrumentation, Yokohama, Japan, 15-20 June 2024Proc. SPIE 13096: Ground-based and Airborne Instrumentation for Astronomy X. SPIE, (10.1117/12.3019262)
- Wolz, K. et al. 2024. The Simons Observatory: Pipeline comparison and validation for large-scale B-modes. Astronomy & Astrophysics 686, article number: A16. (10.1051/0004-6361/202346105)
- Piccirilli, G., Fabbian, G., Alonso, D., Storey-Fisher, K., Carron, J., Lewis, A. and García-García, C. 2024. Growth history and quasar bias evolution at z < 3 from Quaia. Journal of Cosmology and Astroparticle Physics 2024(6), article number: 12. (10.1088/1475-7516/2024/06/012)
- Zagatti, G., Bortolami, M., Gruppuso, A., Natoli, P., Pagano, L. and Fabbian, G. 2024. Planck constraints on cosmic birefringence and its cross-correlation with the CMB. Journal of Cosmology and Astroparticle Physics 2024(5), article number: 34. (10.1088/1475-7516/2024/05/034)
- Storey-Fisher, K., Hogg, D. W., Rix, H., Eilers, A., Fabbian, G., Blanton, M. R. and Alonso, D. 2024. Quaia, the Gaia-unWISE quasar catalog: an all-sky spectroscopic quasar sample. Astrophysical Journal 964, article number: 69. (10.3847/1538-4357/ad1328)
- Dachlythra, N. et al. 2024. The Simons Observatory: Beam characterization for the small aperture telescopes. Astrophysical Journal 961(1), article number: 138. (10.3847/1538-4357/ad0969)
- Adachi, S. et al. 2024. Exploration of the polarization angle variability of the Crab Nebula with POLARBEAR and its application to the search for axionlike particles. Physical Review D (particles, fields, gravitation, and cosmology) 110(6), article number: 63013. (10.1103/physrevd.110.063013)
- Hertig, E. et al. 2024. The Simons Observatory: Combining cross-spectral foreground cleaning with multitracer B-mode delensing for improved constraints on inflation. Physical Review D (particles, fields, gravitation, and cosmology) 110, article number: 43532. (10.1103/physrevd.110.043532)
2023
- Alonso, D., Fabbian, G., Storey-Fisher, K., Eilers, A., García-García, C., Hogg, D. W. and Rix, H. 2023. Constraining cosmology with the Gaia - unWISE Quasar Catalog and CMB lensing: structure growth. Journal of Cosmology and Astroparticle Physics 2023(11), article number: 43. (10.1088/1475-7516/2023/11/043)
- Li, Z. et al. 2023. The Simons Observatory: a new open-source power spectrum pipeline applied to the Planck legacy data. Journal of Cosmology and Astroparticle Physics 2023(9), article number: 48. (10.1088/1475-7516/2023/09/048)
- Clancy, J. et al. 2023. Polarization fraction of Planck Galactic cold clumps and forecasts for the Simons Observatory. Monthly Notices of the Royal Astronomical Society 524(3), pp. 3712–3723. (10.1093/mnras/stad2099)
- Adachi, S. et al. 2023. Constraints on axionlike polarization oscillations in the cosmic microwave background with POLARBEAR. Physical Review D 108(4), article number: 43017. (10.1103/PhysRevD.108.043017)
- Vielzeuf, P., Calabrese, M., Carbone, C., Fabbian, G. and Baccigalupi, C. 2023. DEMNUni: the imprint of massive neutrinos on the cross-correlation between cosmic voids and CMB lensing. Journal of Cosmology and Astroparticle Physics 2023(8) (10.1088/1475-7516/2023/08/010)
- Ajani, V. et al. 2023. Euclid preparation XXVIII. Forecasts for ten different higher-order weak lensing statistics. Astronomy & Astrophysics 675, article number: A120. (10.1051/0004-6361/202346017)
2022
- Carron, J., Lewis, A. and Fabbian, G. 2022. Planck integrated Sachs-Wolfe-lensing likelihood and the CMB temperature. PHYSICAL REVIEW D (10.1103/PhysRevD.106.103507)
- Bianchini, F. and Fabbian, G. 2022. CMB spectral distortions revisited: A new take on μ distortions and primordial non-Gaussianities from FIRAS data. Physical Review D 106(6), article number: 63527. (10.1103/PhysRevD.106.063527)
- Scaramella, R. et al. 2022. Euclid preparation: I. The Euclid Wide Survey. Astronomy & Astrophysics 662, article number: A112. (10.1051/0004-6361/202141938)
- Lepori, F. et al. 2022. Euclid preparation: XIX. Impact of magnification on photometric galaxy clustering. Astronomy & Astrophysics 662, article number: A93. (10.1051/0004-6361/202142419)
- The Polarbear Collaboration, . et al. 2022. Improved upper limit on degree-scale CMB B-mode polarization power from the 670 square-degree POLARBEAR Survey. Astrophysical Journal 931(2), article number: 101. (10.3847/1538-4357/ac6809)
- Upham, R. E. et al. 2022. Euclid: Covariance of weak lensing pseudo-Cℓ estimates. Astronomy & Astrophysics 660, article number: A114. (10.1051/0004-6361/202142908)
- Hensley, B. S. et al. 2022. The Simons Observatory: galactic science goals and forecasts. Astrophysical Journal 929(2), article number: 166. (10.3847/1538-4357/ac5e36)
- Lovell, C. C., Wilkins, S. M., Thomas, P. A., Schaller, M., Baugh, C. M., Fabbian, G. and Bahé, Y. 2022. A machine learning approach to mapping baryons on to dark matter haloes using the eagle and C-EAGLE simulations. Monthly Notices of the Royal Astronomical Society (10.1093/mnras/stab3221)
- Namikawa, T. et al. 2022. Simons Observatory: Constraining inflationary gravitational waves with multi-tracer B-mode delensing. Physical Review D 105(2), article number: 23511. (10.1103/PhysRevD.105.023511)
2021
- Zhu, N. et al. 2021. The Simons Observatory Large Aperture Telescope Receiver. Astrophysical Journal Supplement 256(1), article number: 23. (10.3847/1538-4365/ac0db7)
- Mirmelstein, M., Fabbian, G., Lewis, A. and Peloton, J. 2021. Instrumental systematics biases in CMB lensing reconstruction: A simulation-based assessment. Physical Review D 103(12), article number: 123540. (10.1103/PhysRevD.103.123540)
- Fabbian, G. and Peloton, J. 2021. Simulating instrumental systematics of cosmic microwave background experiments with s4cmb. Journal of Open Source Software 6(60), article number: 3022. (10.21105/joss.03022)
Articles
- Zhou, A. J., Li, Y., Dodelson, S., Mandelbaum, R., Zhang, Y., Li, X. and Fabbian, G. 2024. A Hamiltonian, post-Born, three-dimensional, on-the-fly ray tracing algorithm for gravitational lensing. Journal of Cosmology and Astroparticle Physics 2024(10), article number: 69. (10.1088/1475-7516/2024/10/069)
- Giardiello, S. et al. 2024. The Simons Observatory: impact of bandpass, polarization angle and calibration uncertainties on small-scale power spectrum analysis. Journal of Cosmology and Astroparticle Physics 2024, article number: 8. (10.1088/1475-7516/2024/09/008)
- Wolz, K. et al. 2024. The Simons Observatory: Pipeline comparison and validation for large-scale B-modes. Astronomy & Astrophysics 686, article number: A16. (10.1051/0004-6361/202346105)
- Piccirilli, G., Fabbian, G., Alonso, D., Storey-Fisher, K., Carron, J., Lewis, A. and García-García, C. 2024. Growth history and quasar bias evolution at z < 3 from Quaia. Journal of Cosmology and Astroparticle Physics 2024(6), article number: 12. (10.1088/1475-7516/2024/06/012)
- Zagatti, G., Bortolami, M., Gruppuso, A., Natoli, P., Pagano, L. and Fabbian, G. 2024. Planck constraints on cosmic birefringence and its cross-correlation with the CMB. Journal of Cosmology and Astroparticle Physics 2024(5), article number: 34. (10.1088/1475-7516/2024/05/034)
- Storey-Fisher, K., Hogg, D. W., Rix, H., Eilers, A., Fabbian, G., Blanton, M. R. and Alonso, D. 2024. Quaia, the Gaia-unWISE quasar catalog: an all-sky spectroscopic quasar sample. Astrophysical Journal 964, article number: 69. (10.3847/1538-4357/ad1328)
- Dachlythra, N. et al. 2024. The Simons Observatory: Beam characterization for the small aperture telescopes. Astrophysical Journal 961(1), article number: 138. (10.3847/1538-4357/ad0969)
- Adachi, S. et al. 2024. Exploration of the polarization angle variability of the Crab Nebula with POLARBEAR and its application to the search for axionlike particles. Physical Review D (particles, fields, gravitation, and cosmology) 110(6), article number: 63013. (10.1103/physrevd.110.063013)
- Hertig, E. et al. 2024. The Simons Observatory: Combining cross-spectral foreground cleaning with multitracer B-mode delensing for improved constraints on inflation. Physical Review D (particles, fields, gravitation, and cosmology) 110, article number: 43532. (10.1103/physrevd.110.043532)
- Alonso, D., Fabbian, G., Storey-Fisher, K., Eilers, A., García-García, C., Hogg, D. W. and Rix, H. 2023. Constraining cosmology with the Gaia - unWISE Quasar Catalog and CMB lensing: structure growth. Journal of Cosmology and Astroparticle Physics 2023(11), article number: 43. (10.1088/1475-7516/2023/11/043)
- Li, Z. et al. 2023. The Simons Observatory: a new open-source power spectrum pipeline applied to the Planck legacy data. Journal of Cosmology and Astroparticle Physics 2023(9), article number: 48. (10.1088/1475-7516/2023/09/048)
- Clancy, J. et al. 2023. Polarization fraction of Planck Galactic cold clumps and forecasts for the Simons Observatory. Monthly Notices of the Royal Astronomical Society 524(3), pp. 3712–3723. (10.1093/mnras/stad2099)
- Adachi, S. et al. 2023. Constraints on axionlike polarization oscillations in the cosmic microwave background with POLARBEAR. Physical Review D 108(4), article number: 43017. (10.1103/PhysRevD.108.043017)
- Vielzeuf, P., Calabrese, M., Carbone, C., Fabbian, G. and Baccigalupi, C. 2023. DEMNUni: the imprint of massive neutrinos on the cross-correlation between cosmic voids and CMB lensing. Journal of Cosmology and Astroparticle Physics 2023(8) (10.1088/1475-7516/2023/08/010)
- Ajani, V. et al. 2023. Euclid preparation XXVIII. Forecasts for ten different higher-order weak lensing statistics. Astronomy & Astrophysics 675, article number: A120. (10.1051/0004-6361/202346017)
- Carron, J., Lewis, A. and Fabbian, G. 2022. Planck integrated Sachs-Wolfe-lensing likelihood and the CMB temperature. PHYSICAL REVIEW D (10.1103/PhysRevD.106.103507)
- Bianchini, F. and Fabbian, G. 2022. CMB spectral distortions revisited: A new take on μ distortions and primordial non-Gaussianities from FIRAS data. Physical Review D 106(6), article number: 63527. (10.1103/PhysRevD.106.063527)
- Scaramella, R. et al. 2022. Euclid preparation: I. The Euclid Wide Survey. Astronomy & Astrophysics 662, article number: A112. (10.1051/0004-6361/202141938)
- Lepori, F. et al. 2022. Euclid preparation: XIX. Impact of magnification on photometric galaxy clustering. Astronomy & Astrophysics 662, article number: A93. (10.1051/0004-6361/202142419)
- The Polarbear Collaboration, . et al. 2022. Improved upper limit on degree-scale CMB B-mode polarization power from the 670 square-degree POLARBEAR Survey. Astrophysical Journal 931(2), article number: 101. (10.3847/1538-4357/ac6809)
- Upham, R. E. et al. 2022. Euclid: Covariance of weak lensing pseudo-Cℓ estimates. Astronomy & Astrophysics 660, article number: A114. (10.1051/0004-6361/202142908)
- Hensley, B. S. et al. 2022. The Simons Observatory: galactic science goals and forecasts. Astrophysical Journal 929(2), article number: 166. (10.3847/1538-4357/ac5e36)
- Lovell, C. C., Wilkins, S. M., Thomas, P. A., Schaller, M., Baugh, C. M., Fabbian, G. and Bahé, Y. 2022. A machine learning approach to mapping baryons on to dark matter haloes using the eagle and C-EAGLE simulations. Monthly Notices of the Royal Astronomical Society (10.1093/mnras/stab3221)
- Namikawa, T. et al. 2022. Simons Observatory: Constraining inflationary gravitational waves with multi-tracer B-mode delensing. Physical Review D 105(2), article number: 23511. (10.1103/PhysRevD.105.023511)
- Zhu, N. et al. 2021. The Simons Observatory Large Aperture Telescope Receiver. Astrophysical Journal Supplement 256(1), article number: 23. (10.3847/1538-4365/ac0db7)
- Mirmelstein, M., Fabbian, G., Lewis, A. and Peloton, J. 2021. Instrumental systematics biases in CMB lensing reconstruction: A simulation-based assessment. Physical Review D 103(12), article number: 123540. (10.1103/PhysRevD.103.123540)
- Fabbian, G. and Peloton, J. 2021. Simulating instrumental systematics of cosmic microwave background experiments with s4cmb. Journal of Open Source Software 6(60), article number: 3022. (10.21105/joss.03022)
Conferences
- Braithwaite, C. et al. 2024. A study on the performance of half-wave plates designed for sub-mm studies. Presented at: SPIE Astronomical Telescopes + Instrumentation, Yokohama, Japan, 15-20 June 2024Proc. SPIE 13096: Ground-based and Airborne Instrumentation for Astronomy X. SPIE, (10.1117/12.3019262)
Ymchwil
Mae fy ymchwil yn gorwedd ar y rhyngwyneb rhwng cyfrifiadureg, ffiseg arbrofol a chosmoleg damcaniaethol.
Mae gen i ddiddordeb mewn datblygu dealltwriaeth ddamcaniaethol newydd o arsyllfeydd cosmolegol, yn ogystal â dadansoddi data a thechnegau efelychu rhifiadol i ddadansoddi data astroffisegol. Er mwyn deall ein data'n gywir, mae angen i ni ddysgu priodweddau ein hofferynnau, ac rwy'n arbenigwr mewn cysylltu effeithiau systematig offerynnol â mesuriadau cosmolegol terfynol.
Y dyddiau hyn mae gen i ddiddordeb arbennig mewn synergeddau rhwng arsylwadau'r awyr yn y band microdon ac arolygon galaeth mewn amleddau eraill. Rwy'n awyddus i gyfuno'r ddwy set ddata hyn i wella ein gwybodaeth o'r bydysawd a thaflu goleuni ar ffiseg neutrino, chwyddiant, mater tywyll ac egni tywyll yn ogystal ag ar amrywiaeth o astroffiseg galactig ac allgyrsiol (e.e. ffiseg clystyrau galaethau neu IGM).
Rwy'n aelod o nifer o arbrofion CMB. Dechreuais fy ngyrfa yn gweithio ar arbrawf POLARBEAR, telesgop sy'n ymroddedig i arsylwadau CMB a gynhyrchodd y mesuriad cyntaf o'i batter polareiddio modd B di-liw wedi'i fewnbrintio gan yr effaith lens disgyrchiant. Ers hynny, deuthum yn rhan o gydweithrediad Arsyllfa Simon a CMB-S4.
Rwy'n cyd-arwain gweithgor lensio Arsyllfa Simons ac yn arbennig y wyddoniaeth drawsberthyniad gydag arolygon galaeth. Rwyf hefyd yn rhan o gonsortiwm Euclid lle rwy'n cyd-arwain ei weithgor gwyddoniaeth trawsberthyniad CMB.
Bywgraffiad
Apwyntiadau
- 11/2024 STFC Ernest Rutherford Cymrawd
- 04/2024-10/2024 Cydymaith ymchwil, Sefydliad Kavli ar gyfer Cosmoleg Caergrawnt.
- 2021-2024 Marie Skłodowska Curie Global Fellow, Canolfan Astroffiseg Gyfrifiadurol yn y Flatiron Institute (Efrog Newydd, UDA) a Phrifysgol Caerdydd.
- 2018-2020 Cymrawd Ymchwil, Prifysgol Sussex.
- 2016–2018 Cymrawd ôl-ddoethurol CNES, Institut d'Astrophysique Spatiale (IAS), Orsay, Ffrainc.
- 2013–2016 Cymrawd Ôl-ddoethurol, Ysgol Ryngwladol ar gyfer Astudiaethau Uwch (SISSA), Trieste, Yr Eidal.
Safleoedd ymweld
- 02/2020 Ymchwilydd ymweliad, adran Theori CERN, Geneva, CH.
- 10-11/2015 Cymrawd Gwadd Etifeddiaeth Sciama, Adran Mathemateg Gymhwysol a Ffiseg Ddamcaniaethol (DAMTP), Prifysgol Caergrawnt, Caergrawnt, y DU.
- 01/2011 Myfyrwyr graddedig sy'n ymweld, Canolfan Cosmoleg Gyfrifiadurol, Labordy Cenedlaethol Lawrence Berkeley (LBNL), Berkeley, UDA.
Addysg
- 2010-2013 PhD mewn Ffiseg, Prifysgol Paris VII Denis Diderot, dyfarnu gyda gwahaniaethau. Cyfarwyddwr: Dr. Radek Stompor.
- 2008-2010 Msc mewn Astroffiseg a Gwyddoniaeth Gofod, Prifysgol Milano-Bicocca, Milan, Yr Eidal, Gradd 110/110.
- 2009: Myfyriwr Rhaglen Gyfnewid Ryngwladol, Ecole Polytechnique, Palaiseau, Ffrainc.
- 2005-2008 Bsc mewn Ffiseg, Prifysgol Milano-Bicocca, Milan, Yr Eidal.
Anrhydeddau a dyfarniadau
- 2024 Cymrodoriaeth Ernest Ruthherford STFC
- 2020 Cymrodoriaeth Fyd-eang Marie Skłodowska Curie prosiect n. 892401 Precision Cosmology gydag Arolygon Cefndir Galaxy a Microdon (PiCOGAMBAS).
- Grant cyfunol STFC 2019 (w/ Yr Athro A. Lewis).
- 2016 CNES gymrodoriaeth ôl-ddoethurol.
- 2015 Cymrodoriaeth Etifeddiaeth Dennis Sciama.
- 2010 ExTRA gymrodoriaeth o sefydliad CARIPLO.
Pwyllgorau ac adolygu
- Adolygu
- Referee Physical Review Letters, Physical Review D, JCAP, Seryddiaeth ac Astroffiseg, The Astrophysical Journal.
- Adolygydd grant ar gyfer Cymdeithas Japan ar gyfer Hyrwyddo Gwyddoniaeth (JSPS).
- Adolygydd PhD ar gyfer Prifysgol Paris 11.
-
adolygydd mewnol o bapurau cydweithredu ar gyfer CMB-S4, Arsyllfa Simons, POLARBEAR
- Pwyllgorau
- 2020 Trefnydd gweithdy lensio CMB (Prifysgol Sussex).
- 2019 Trefnydd cyfarfod Cosmoleg Arfordir y De (Prifysgol Sussex) 2018 Trefnydd y CMB Euclid - cyfarfod SWG traws-gydberthynas
- 2012 Aelod o bwyllgor trefnu'r gynhadledd "Big3: Big bang, Big data, cyfrifiaduron mawr" (Paris, Ffrainc). Trefnydd y CMB Euclid - cyfarfod SWG traws-gydberthynas (Orsay, Ffrainc, 2018).
Contact Details
Themâu ymchwil
Arbenigeddau
- Cosmoleg a seryddiaeth allgalactig
