Justin A Vandenbroucke

University of Wisconsin-Madison

H-index: 122

North America-United States

Description

Justin A Vandenbroucke, With an exceptional h-index of 122 and a recent h-index of 78 (since 2020), a distinguished researcher at University of Wisconsin-Madison, specializes in the field of physics, astronomy.

His recent articles reflect a diverse array of research interests and contributions to the field:

Dark Matter Line Searches with the Cherenkov Telescope Array

1ES 1959+ 650: Upper limits from a neutrino search with IceCube

Constraints on the Origins of the Galactic Neutrino Flux Detected by IceCube

Search for decoherence from quantum gravity with atmospheric neutrinos

Improved modeling of in-ice particle showers for IceCube event reconstruction

SN 2024bch: Upper limits from a neutrino search with IceCube

Observation of seven astrophysical tau neutrino candidates with IceCube

Crab Nebula flare: Upper limits from a neutrino search with IceCube

Professor Information

University	University of Wisconsin-Madison
Position	___
Citations(all)	55114
Citations(since 2020)	25955
Cited By	38641
hIndex(all)	122
hIndex(since 2020)	78
i10Index(all)	308
i10Index(since 2020)	260
Email	Access Email
University Profile Page	University of Wisconsin-Madison

Research & Interests List

physics

astronomy

Top articles of Justin A Vandenbroucke

Dark Matter Line Searches with the Cherenkov Telescope Array

Monochromatic gamma-ray signals constitute a potential smoking gun signature for annihilating or decaying dark matter particles that could relatively easily be distinguished from astrophysical or instrumental backgrounds. We provide an updated assessment of the sensitivity of the Cherenkov Telescope Array (CTA) to such signals, based on observations of the Galactic centre region as well as of selected dwarf spheroidal galaxies. We find that current limits and detection prospects for dark matter masses above 300 GeV will be significantly improved, by up to an order of magnitude in the multi-TeV range. This demonstrates that CTA will set a new standard for gamma-ray astronomy also in this respect, as the world's largest and most sensitive high-energy gamma-ray observatory, in particular due to its exquisite energy resolution at TeV energies and the adopted observational strategy focussing on regions with large dark matter densities. Throughout our analysis, we use up-to-date instrument response functions, and we thoroughly model the effect of instrumental systematic uncertainties in our statistical treatment. We further present results for other potential signatures with sharp spectral features, e.g.~box-shaped spectra, that would likewise very clearly point to a particle dark matter origin.

Authors

S Abe,J Abhir,A Abhishek,F Acero,A Acharyya,R Adam,A Aguasca-Cabot,I Agudo,A Aguirre-Santaella,J Alfaro,R Alfaro,N Alvarez-Crespo,R Alves Batista,J-P Amans,E Amato,G Ambrosi,L Angel,C Aramo,C Arcaro,TTH Arnesen,L Arrabito,K Asano,Y Ascasibar,J Aschersleben,H Ashkar,M Backes,A Baktash,C Balazs,M Balbo,A Baquero Larriva,V Barbosa Martins,U Barres de Almeida,JA Barrio,I Batković,R Batzofin,J Baxter,J Becerra González,G Beck,W Benbow,D Berge,E Bernardini,J Bernete,K Bernlöhr,A Berti,B Bertucci,P Bhattacharjee,S Bhattacharyya,C Bigongiari,A Biland,E Bissaldi,J Biteau,O Blanch,J Blazek,F Bocchino,C Boisson,J Bolmont,G Bonnoli,A Bonollo,P Bordas,Z Bosnjak,E Bottacini,M Böttcher,T Bringmann,E Bronzini,R Brose,AM Brown,G Brunelli,A Bulgarelli,T Bulik,I Burelli,L Burmistrov,M Burton,M Buscemi,T Bylund,J Cailleux,A Campoy-Ordaz,BK Cantlay,G Capasso,A Caproni,R Capuzzo-Dolcetta,P Caraveo,S Caroff,A Carosi,R Carosi,E Carquin,M-S Carrasco,F Cassol,L Castaldini,N Castrejon,AJ Castro-Tirado,D Cerasole,M Cerruti,PM Chadwick,S Chaty,AW Chen,M Chernyakova,A Chiavassa,J Chudoba,L Chytka,GM Cicciari,A Cifuentes,CH Araujo,M Colapietro,V Conforti,F Conte,JL Contreras,A Costa,H Costantini,G Cotter,P Cristofari,O Cuevas,Z Curtis-Ginsberg,G d'Amico,F d'Ammando,S Dai,M Dalchenko,F Dazzi,A De Angelis,M de Lavergne,V De Caprio,EM Pino,B De Lotto,M De Lucia,R de Menezes,M de Naurois,V de Souza,L del Peral,MV del Valle,AG Giler,J Delgado Mengual,C Delgado,M Dell'Aiera,D Della Volpe,D Depaoli,T Di Girolamo,A Di Piano,F Di Pierro,R Di Tria,L Di Venere,C Díaz,S Diebold,A Dinesh,J Djuvsland,RM Dominik,D Dominis Prester,A Donini,D Dorner,J Dörner,M Doro,J-L Dournaux

Journal

arXiv preprint arXiv:2403.04857

Published Date

2024/3/7

1ES 1959+ 650: Upper limits from a neutrino search with IceCube

The IceCube Collaboration (http://icecube. wisc. edu/) reports: IceCube has performed a search for track-like muon neutrino events arriving from the direction of the blazar 1ES 1959+ 650, which is flaring in the TeV and MeV-GeV gamma-ray bands (LHAASO ATel# 16437 and Fermi-LAT ATel# 16456, respectively), as well as in soft X-rays (Swift XRT ATel# 16449).

Authors

Jessie Thwaites,Erik Blaufuss,Marcos Santander,Justin Vandenbroucke

Journal

The Astronomer's Telegram

Published Date

2024/2

Constraints on the Origins of the Galactic Neutrino Flux Detected by IceCube

Galactic and extragalactic objects in the universe are sources of high-energy neutrinos that can be detected by the IceCube neutrino detector, with the former being easier to resolve due to comparatively smaller distances. Recently, a study done using cascade-like events seen by IceCube reported neutrino emission from the Galactic plane with 4 significance. In this work, we put a limit on the number of Galactic sources required to explain this emission. To achieve this, we make use of a simulation package created to simulate point sources in the Galaxy along with the neutrino and gamma-ray flux emissions originating from them. Along with making use of past IceCube sensitivity curves, we also account for Eddington bias effects due to Poisson fluctuations in the number of detected neutrino events. By making use of a toy-Monte Carlo simulation method, we find that there should be more than 10 sources, each with luminosities erg/s responsible for the Galactic neutrino emission. Our results constrain the number of individual point-like emission regions, which applies both to discrete astrophysical sources and to individual points of diffuse emission.

Authors

Abhishek Desai,Justin Vandenbroucke,Samalka Anandagoda,Jessie Thwaites,MJ Romfoe

Journal

arXiv preprint arXiv:2306.17305

Published Date

2023/6/29

Search for decoherence from quantum gravity with atmospheric neutrinos

Neutrino oscillations at the highest energies and longest baselines can be used to study the structure of spacetime and test the fundamental principles of quantum mechanics. If the metric of spacetime has a quantum mechanical description, its fluctuations at the Planck scale are expected to introduce non-unitary effects that are inconsistent with the standard unitary time evolution of quantum mechanics. Neutrinos interacting with such fluctuations would lose their quantum coherence, deviating from the expected oscillatory flavour composition at long distances and high energies. Here we use atmospheric neutrinos detected by the IceCube South Pole Neutrino Observatory in the energy range of 0.5-10.0 TeV to search for coherence loss in neutrino propagation. We find no evidence of anomalous neutrino decoherence and determine limits on neutrino-quantum gravity interactions. The constraint on the effective decoherence strength parameter within an energy-independent decoherence model improves on previous limits by a factor of 30. For decoherence effects scaling as E2, our limits are advanced by more than six orders of magnitude beyond past measurements compared with the state of the art. Interactions of atmospheric neutrinos with quantum-gravity-induced fluctuations of the metric of spacetime would lead to decoherence. The IceCube Collaboration constrains such interactions with atmospheric neutrinos.

Authors

R Abbasi,M Ackermann,J Adams,SK Agarwalla,JA Aguilar,M Ahlers,JM Alameddine,NM Amin,K Andeen,G Anton,C Arguelles,Y Ashida,S Athanasiadou,L Ausborm,SN Axani,X Bai,A Balagopal,M Baricevic,SW Barwick,V Basu,R Bay,JJ Beatty,J Becker Tjus,J Beise,C Bellenghi,C Benning,S BenZvi,D Berley,E Bernardini,DZ Besson,E Blaufuss,S Blot,F Bontempo,JY Book,C Boscolo Meneguolo,S Boser,O Botner,J Bottcher,J Braun,B Brinson,J Brostean-Kaiser,L Brusa,RT Burley,RS Busse,D Butterfield,MA Campana,K Carloni,EG Carnie-Bronca,S Chattopadhyay,N Chau,C Chen,Z Chen,D Chirkin,S Choi,BA Clark,A Coleman,GH Collin,A Connolly,JM Conrad,P Coppin,P Correa,DF Cowen,P Dave,C De Clercq,JJ DeLaunay,D Delgado,S Deng,K Deoskar,A Desai,P Desiati,KD de Vries,G de Wasseige,T DeYoung,A Diaz,JC Diaz-Velez,M Dittmer,A Domi,H Dujmovic,MA DuVernois,T Ehrhardt,A Eimer,P Eller,E Ellinger,S El Mentawi,D Elsasser,R Engel,H Erpenbeck,J Evans,PA Evenson,KL Fan,K Fang,K Farrag,AR Fazely,A Fedynitch,N Feigl,S Fiedlschuster,C Finley,L Fischer,D Fox,A Franckowiak,P Furst,J Gallagher,E Ganster,A Garcia,L Gerhardt,A Ghadimi,C Glaser,T Glusenkamp,JG Gonzalez,D Grant,SJ Gray,O Gries,S Griffin,S Griswold,KM Groth,C Gunther,P Gutjahr,C Ha,C Haack,A Hallgren,R Halliday,L Halve,F Halzen,H Hamdaoui,M Ha Minh,M Handt,K Hanson,J Hardin,AA Harnisch,P Hatch,A Haungs,J Haussler,K Helbing,J Hellrung,J Hermannsgabner,L Heuermann,N Heyer,S Hickford,A Hidvegi,C Hill,GC Hill,KD Hoffman,S Hori,K Hoshina,W Hou,T Huber,K Hultqvist,M Hunnefeld,R Hussain,K Hymon

Journal

Nature Physics

Published Date

2024

Improved modeling of in-ice particle showers for IceCube event reconstruction

The IceCube Neutrino Observatory relies on an array of photomultiplier tubes to detect Cherenkov light produced by charged particles in the South Pole ice. IceCube data analyses depend on an in-depth characterization of the glacial ice, and on novel approaches in event reconstruction that utilize fast approximations of photoelectron yields. Here, a more accurate model is derived for event reconstruction that better captures our current knowledge of ice optical properties. When evaluated on a Monte Carlo simulation set, the median angular resolution for in-ice particle showers improves by over a factor of three compared to a reconstruction based on a simplified model of the ice. The most substantial improvement is obtained when including effects of birefringence due to the polycrystalline structure of the ice. When evaluated on data classified as particle showers in the high-energy starting events sample, a significantly improved description of the events is observed.

Authors

R Abbasi,M Ackermann,J Adams,SK Agarwalla,JA Aguilar,M Ahlers,JM Alameddine,NM Amin,K Andeen,G Anton,C Argüelles,Y Ashida,S Athanasiadou,L Ausborm,SN Axani,X Bai,M Baricevic,SW Barwick,S Bash,V Basu,R Bay,JJ Beatty,J Becker Tjus,J Beise,C Bellenghi,C Benning,S BenZvi,D Berley,E Bernardini,DZ Besson,E Blaufuss,S Blot,F Bontempo,JY Book,C Boscolo Meneguolo,S Böser,O Botner,J Böttcher,J Braun,B Brinson,J Brostean-Kaiser,L Brusa,RT Burley,RS Busse,D Butterfield,MA Campana,I Caracas,K Carloni,J Carpio,S Chattopadhyay,N Chau,Z Chen,D Chirkin,S Choi,BA Clark,A Coleman,GH Collin,A Connolly,JM Conrad,P Coppin,R Corley,P Correa,DF Cowen,P Dave,C De Clercq,JJ DeLaunay,D Delgado,S Deng,K Deoskar,A Desai,P Desiati,KD de Vries,G de Wasseige,T DeYoung,A Diaz,JC Díaz-Vélez,M Dittmer,A Domi,L Draper,H Dujmovic,K Dutta,MA DuVernois,T Ehrhardt,L Eidenschink,A Eimer,P Eller,E Ellinger,S El Mentawi,D Elsässer,R Engel,H Erpenbeck,J Evans,PA Evenson,KL Fan,K Fang,K Farrag,AR Fazely,A Fedynitch,N Feigl,S Fiedlschuster,C Finley,L Fischer,D Fox,A Franckowiak,P Fürst,J Gallagher,E Ganster,A Garcia,E Genton,L Gerhardt,A Ghadimi,C Girard-Carillo,C Glaser,T Glüsenkamp,JG Gonzalez,S Goswami,A Granados,D Grant,SJ Gray,O Gries,S Griffin,S Griswold,KM Groth,C Günther,P Gutjahr,C Ha,C Haack,A Hallgren,R Halliday,L Halve,F Halzen,H Hamdaoui,M Ha Minh,M Handt,K Hanson,J Hardin,AA Harnisch,P Hatch,A Haungs,J Häußler,K Helbing,J Hellrung,J Hermannsgabner,L Heuermann,N Heyer,S Hickford,A Hidvegi,C Hill,GC Hill,KD Hoffman

Journal

arXiv preprint arXiv:2403.02470

Published Date

2024/3/4

SN 2024bch: Upper limits from a neutrino search with IceCube

The IceCube Collaboration (http://icecube. wisc. edu/) reports: IceCube has performed a search for track-like muon neutrino events arriving from the direction of the nearby Type IIn supernova SN 2024bch (https://www. wis-tns. org/object/2024bch) over two time windows in order to detect emission from either the shock propagation wave inside the stellar progenitor up to the shock breakout or the interaction of the ejecta with the circumstellar medium.

Authors

Angela Zegarelli,Jessie Thwaites,Anna Franckowiak,Erik Blaufuss,Marcos Santander,Justin Vandenbroucke

Journal

The Astronomer's Telegram

Published Date

2024/2

Observation of seven astrophysical tau neutrino candidates with IceCube

We report on a measurement of astrophysical tau neutrinos with 9.7 yr of IceCube data. Using convolutional neural networks trained on images derived from simulated events, seven candidate ν τ events were found with visible energies ranging from roughly 20 TeV to 1 PeV and a median expected parent ν τ energy of about 200 TeV. Considering backgrounds from astrophysical and atmospheric neutrinos, and muons from π±/K±decays in atmospheric air showers, we obtain a total estimated background of about 0.5 events, dominated by non-ν τ astrophysical neutrinos. Thus, we rule out the absence of astrophysical ν τ at the 5 σ level. The measured astrophysical ν τ flux is consistent with expectations based on previously published IceCube astrophysical neutrino flux measurements and neutrino oscillations.

Authors

R Abbasi,M Ackermann,J Adams,SK Agarwalla,JA Aguilar,M Ahlers,JM Alameddine,NM Amin,K Andeen,G Anton,C Argüelles,Y Ashida,S Athanasiadou,SN Axani,X Bai,VA Balagopal,M Baricevic,SW Barwick,V Basu,R Bay,JJ Beatty,J Becker Tjus,J Beise,C Bellenghi,C Benning,S BenZvi,D Berley,E Bernardini,DZ Besson,E Blaufuss,S Blot,F Bontempo,JY Book,C Boscolo Meneguolo,S Böser,O Botner,J Böttcher,E Bourbeau,J Braun,B Brinson,J Brostean-Kaiser,RT Burley,RS Busse,D Butterfield,MA Campana,K Carloni,EG Carnie-Bronca,S Chattopadhyay,N Chau,C Chen,Z Chen,D Chirkin,S Choi,BA Clark,L Classen,A Coleman,GH Collin,A Connolly,JM Conrad,P Coppin,P Correa,DF Cowen,P Dave,C De Clercq,JJ DeLaunay,D Delgado,S Deng,K Deoskar,A Desai,P Desiati,KD de Vries,G de Wasseige,T DeYoung,A Diaz,JC Díaz-Vélez,M Dittmer,A Domi,H Dujmovic,MA DuVernois,T Ehrhardt,P Eller,E Ellinger,S El Mentawi,D Elsässer,R Engel,H Erpenbeck,J Evans,PA Evenson,KL Fan,K Fang,K Farrag,AR Fazely,N Feigl,S Fiedlschuster,AT Fienberg,C Finley,L Fischer,D Fox,A Franckowiak,A Fritz,P Fürst,J Gallagher,E Ganster,A Garcia,L Gerhardt,A Ghadimi,C Glaser,T Glauch,T Glüsenkamp,N Goehlke,JG Gonzalez,S Goswami,D Grant,SJ Gray,O Gries,S Griffin,S Griswold,KM Groth,C Günther,P Gutjahr,C Haack,A Hallgren,R Halliday,L Halve,F Halzen,H Hamdaoui,M Ha Minh,K Hanson,J Hardin,AA Harnisch,P Hatch,A Haungs,K Helbing,J Hellrung,F Henningsen,L Heuermann,N Heyer,S Hickford,A Hidvegi,C Hill,GC Hill,KD Hoffman,S Hori,K Hoshina,W Hou,T Huber,K Hultqvist,M Hünnefeld,R Hussain,K Hymon

Journal

Physical Review Letters

Published Date

2024/4/11

Crab Nebula flare: Upper limits from a neutrino search with IceCube

The IceCube Collaboration (http://icecube. wisc. edu/) reports: IceCube has performed a search for track-like muon neutrino events arriving from the direction of the Crab Nebula in response to a gamma-ray flare detected by Fermi LAT (ATel 16387).

Authors

Sam Hori,Justin Vandenbroucke,Marcos Santander,Erik Balufuss

Journal

The Astronomer's Telegram

Published Date

2024/1

Professor FAQs

What is Justin A Vandenbroucke's h-index at University of Wisconsin-Madison?

The h-index of Justin A Vandenbroucke has been 78 since 2020 and 122 in total.

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