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A critical step to create realistic mock catalogs that support large-scale photometric and spectroscopic sky surveys is the production of cosmological simulations that accurately model the survey observables taking into account the…

We present a new fast method for simulating pencil-beam type light-cones, using the MLAPM-code (Multi Level Adaptive Particle Mesh) with light-cone additions. We show that by a careful choice of the light-cone orientation, it is possible to…

Astrophysics · Physics 2007-05-23 P. Hein"am"aki , I. Suhhonenko , E. Saar , Maret Einasto , Jaan Einasto , Heidi Virtanen

We present a synthetic galaxy lightcone specially designed for narrow-band optical photometric surveys. To reduce time-discreteness effects, unlike previous works, we directly include the lightcone construction in the \texttt{L-Galaxies}…

If there is a null gradient field in 1+3 dimensional space-time, we can set up a kind of light-cone coordinate system in the space-time. In such coordinate system, the metric takes a simple form, which is much helpful for simplifying and…

General Physics · Physics 2017-12-08 Ying-Qiu Gu

Continuing work initiated in an earlier publication [Phys. Rev. D 69, 084007 (2004)], we construct a system of light-cone coordinates based at a geodesic world line of an arbitrary curved spacetime. The construction involves (i) an…

General Relativity and Quantum Cosmology · Physics 2009-11-11 Brent Preston , Eric Poisson

In paper I of this series (Fosalba et al. 2013), we presented a new N-body lightcone simulation from the MICE collaboration, the MICE Grand Challenge (MICE-GC), containing about 70 billion dark-matter particles in a (3 Gpc)^3 comoving…

Cosmology and Nongalactic Astrophysics · Physics 2015-07-30 P. Fosalba , E. Gaztanaga , F. J. Castander , M. Crocce

We present mock catalogs created to support the interpretation of the CANDELS survey. We extract halos along past lightcones from the Bolshoi Planck dissipationless N-body simulations and populate these halos with galaxies using two…

The combination of different cosmological probes offers stringent tests of the $\Lambda$CDM model and enhanced control of systematics. For this purpose, we present an extension of the lightcone generator UFalcon first introduced in Sgier et…

Cosmology and Nongalactic Astrophysics · Physics 2021-05-17 Raphael Sgier , Janis Fluri , Jörg Herbel , Alexandre Réfrégier , Adam Amara , Tomasz Kacprzak , Andrina Nicola

A new window to observing individual stars and other small sources at cosmological distances was opened recently, with the detection of several caustic-crossing events in galaxy cluster fields. Many more such events are expected soon from…

Instrumentation and Methods for Astrophysics · Physics 2022-08-15 Ashish Kumar Meena , Ofir Arad , Adi Zitrin

We present an extension to multiple planes of the gravitational lensing code {\small GLAMER}. The method entails projecting the mass in the observed light-cone onto a discrete number of lens planes and inverse ray-shooting from the image to…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-18 Margarita Petkova , R. Benton Metcalf , Carlo Giocoli

In this paper, we show that a hybrid approach to generative modeling via combining the decoder from an autoencoder together with an explicit generative model for the latent space is a promising method for producing images of particle…

High Energy Physics - Experiment · Physics 2022-04-07 Paul Lutkus , Taritree Wongjirad , Shuchin Aeron

Data on low-energy hadron production in collisions of nucleons, pions and kaons with light nuclei are needed for many astrophysical and accelerator applications. Modern simulations have reached a level of accuracy that the lack of detailed…

Astrophysics · Physics 2009-11-11 Giles Barr , Ralph Engel

The $3 \times 1 \times 1$ m$^3$ demonstrator is a dual phase liquid argon time projection chamber that has recorded cosmic rays events in 2017 at CERN. The light signal in these detectors is crucial to provide precise timing capabilities.…

Instrumentation and Detectors · Physics 2021-03-24 B. Aimard , L. Aizawa , C. Alt , J. Asaadi , M. Auger , V. Aushev , D. Autiero , A. Balaceanu , G. Balik , L. Balleyguier , E. Bechetoille , D. Belver , A. M. Blebea-Apostu , S. Bolognesi , S. Bordoni , N. Bourgeois , B. Bourguille , J. Bremer , G. Brown , G. Brunetti , L. Brunetti , D. Caiulo , M. Calin , E. Calvo , M. Campanelli , K. Cankocak , C. Cantini , B. Carlus , B. M. Cautisanu , M. Chalifour , A. Chappuis , N. Charitonidis , A. Chatterjee , A. Chiriacescuf , P. Chiu , S. Conforti , P. Cotte , P. Crivelli , C. Cuesta , J. Dawson , I. De Bonis , C. De La Taille , A. Delbart , S. Di Luise , F. Doizon , C. Drancourt , D. Duchesneau , F. Dulucq , F. Duval , S. Emery , A. Ereditato , A. Falcone , K. Fusshoeller , A. Gallego-Ros , V. Galymov , N. Geffroy , A. Gendotti , A. Gherghel-Lascu , I. Gil-Botella , C. Girerd , M. C. Gomoiu , P. Gorodetzky , E. Hamada , R. Hanni , T. Hasegawa , A. Holin , S. Horikawa , M. Ikeno , S. Jiménez , A. Jipa , M. Karolak , Y. Karyotakis , S. Kasai , K. Kasami , T. Kishishita , H. Konari , I. Kreslo , D. Kryn , P. Kunzé , M. Kurokawa , Y. Kuromori , C. Lastoria , I. Lazanu , G. Lehmann-Miotto , M. Leyton , N. Lira , K. Loo , D. Lorca , P. Lutz , T. Lux , J. Maalampi , G. Maire , M. Maki , L. Manenti , R. M. Margineanu , J. Marteau , G. Martin-Chassard , H. Mathez , E. Mazzucato , G. Misitano , D. Mladenov , L. Molina Bueno , T. S. Mosu , W. Mu , S. Murphy , K. Nakayoshi , S. Narita , D. Navas-Nicolás , K. Negishi , M. Nessi , M. Niculescu-Oglinzanu , F. Noto , A. Noury , Y. Onishchuk , C. Palomares , M. Parvu , T. Patzak , Y. Penichot , E. Pennacchio , L. Periale , H. Pessard , F. Pietropaolo , D. Pugnere , B. Radics , D. Redondo , C. Regenfus , A. Remoto , F. Resnati , O. Ristea , A. Rubbia , A. Saftoiu , K. Sakashita , F. Sanchez , C. Santos , A. Scarpelli , C. Schloesser , K. Sendai , F. Sergiampietri , S. Shahsavarani , M. Shoji , J. Sinclair , J. Soto-Oton , D. I. Stanca , D. Stefan , R. Sulej , M. Tanaka , V. Toboaru , A. Tonazzo , W. Tromeur , W. H. Trzaska , T. Uchida , L. Urda , F. Vannucci , G. Vasseur , A. Verdugo , T. Viant , S. Vihonen , S. Vilalte , M. Weber , S. Wu , J. Yu , L. Zambelli , M. Zito

We present a code to generate mock observations of 21 cm intensity mapping experiments. The emphasis of the code is on reducing the computational cost of running a full-blown simulation, trading computational time for accuracy. The code can…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-19 David Alonso , Pedro G. Ferreira , Mario G. Santos

We present GLASS, the Generator for Large Scale Structure, a new code for the simulation of galaxy surveys for cosmology, which iteratively builds a light cone with matter, galaxies, and weak gravitational lensing signals as a sequence of…

Cosmology and Nongalactic Astrophysics · Physics 2023-03-28 Nicolas Tessore , Arthur Loureiro , Benjamin Joachimi , Maximilian von Wietersheim-Kramsta , Niall Jeffrey

When a semiconductor absorbs light, the resulting electron-hole superposition amounts to a uncontrolled quantum ripple that eventually degenerates into diffusion. If the conformation of these excitonic superpositions could be engineered,…

Mesoscale and Nanoscale Physics · Physics 2017-05-31 Xiaoning Zang , Simone Montangero , Lincoln D. Carr , Mark T. Lusk

We describe a method for generating halo catalogues on the light cone using the \Abacus{AbacusSummit} suite of $N$-body simulations. The main application of these catalogues is the construction of realistic mock galaxy catalogues and weak…

Cosmology and Nongalactic Astrophysics · Physics 2021-10-25 Boryana Hadzhiyska , Lehman H. Garrison , Daniel Eisenstein , Sownak Bose

The past lightcone of an observer in a cosmological spacetime is the unique geometric structure directly linked to observations. After general properties of the Hawking energy along slices of the past lightcone have previously been studied,…

General Relativity and Quantum Cosmology · Physics 2021-03-29 Dennis Stock

We investigate the rapidity and transverse momentum distributions of the prompt photon production at the CERN LHC energies considering the current perturbative QCD approaches for this scattering process. Namely, we compare the predictions…

High Energy Physics - Phenomenology · Physics 2009-07-22 M. V. T. Machado , C. Brenner Mariotto

Photoproduction is an important mode for the production of jets and electro-weak particles at lepton--lepton and lepton--hadron colliders and allows for interesting studies of exclusive production at hadron--hadron colliders. In this talk,…

High Energy Physics - Phenomenology · Physics 2024-09-19 Peter Meinzinger
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