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inhom newsletter May 2020
by Boud Roukema 13 May '20

13 May '20

hi all If email registrations are still allowed, you might just be able to join today's Gevolution online meeting! WORKSHOPS: * https://www.qmul.ac.uk/spa/astro/events/gevolution-meeting/ Gevolution users & developers meeting - online 13 May 2020 [today] - register by email * https://www.qmul.ac.uk/spa/astro/events/gr-simulations-in-cosmology/ GR simulations in cosmology - Queen Mary University of London, 7-8 September 2020, registration to 14 August 2020 JOBS: * at the Institute of Astronomy NCU = TCfA with a new name (or in the astrochemistry group here); not restricted to inhomogeneous cosmology: deadline 4 June 2020: 2 fixed-term professorships - "The gross salary is min. 18000 PLN (4100 euro) / month and a subject for negotiations." https://euraxess.ec.europa.eu/jobs/520120 https://euraxess.ec.europa.eu/jobs/520123 2 postdocs: https://euraxess.ec.europa.eu/jobs/520128 https://euraxess.ec.europa.eu/jobs/520135 ARXIV/ADS: inhomogeneous cosmology articles since 07.02.2020: * https://ui.adsabs.harvard.edu/abs/2020arXiv200204024L ArXiv:2002.04024 - Weak-lensing observables in relativistic N-body simulations, Francesca Lepori, Julian Adamek, Ruth Durrer, Chris Clarkson, Louis Coates * https://ui.adsabs.harvard.edu/abs/2020arXiv200210831H ArXiv:2002.10831 - Solving the curvature and Hubble parameter inconsistencies through structure formation-induced curvature, Asta Heinesen, Thomas Buchert * https://ui.adsabs.harvard.edu/abs/2020arXiv200308014A ArXiv:2003.08014 - Numerical solutions to Einstein's equations in a shearing-dust Universe: a code comparison - Julian Adamek, Cristian Barrera-Hinojosa, Marco Bruni, Baojiu Li, Hayley J. Macpherson, James B. Mertens * https://ui.adsabs.harvard.edu/abs/2020arXiv200503026G ArXiv:2005.03026 - Multiple-Scales Approach for Addressing The Averaging Problem in Cosmology - Yonadav Barry Ginat Cheers Boud

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inhom newsletter February 2020
by Boud Roukema 07 Feb '20

07 Feb '20

hi inhom subscribers, JOBS: * 3 Queen Mary (QMUL) postdoc positions with Clarkson/Clifton/Bull [deadlines 7 Feb, 28 Feb, 28 Feb]: https://cosmocoffee.info/viewtopic.php?t=3275 ARXIV/ADS: inhomogeneous cosmology articles since 06 12 2019: * https://ui.adsabs.harvard.edu/abs/2019arXiv191204213B ArXiv:1912.04213 - On Average Properties of Inhomogeneous Fluids in General Relativity III: General Fluid Cosmologies - Buchert, Thomas; Mourier, Pierre; Roy, Xavier * https://ui.adsabs.harvard.edu/abs/2019arXiv191212269H ArXiv:1912.1226 - Calculation of distances in cosmological models with small-scale inhomogeneities and their use in observational cosmology: a review - Phillip Helbig * https://ui.adsabs.harvard.edu/abs/2019arXiv191212600D ArXiv:1912.12600 - A gigaparsec-scale local void and the Hubble tension - Ding, Qianhang; Nakama, Tomohiro; Wang, Yi * https://ui.adsabs.harvard.edu/abs/2020arXiv200100394C ArXiv:2001.00394 - Viable Gauge Choices in Cosmologies with Non-Linear Structures - Timothy Clifton, Christopher S. Gallagher, Sophia Goldberg, Karim A. Malik * https://ui.adsabs.harvard.edu/abs/2020arXiv200107968B ArXiv:2001.07968 - GRAMSES: a new route to general relativistic N-body simulations in cosmology. Part II. Initial conditions - Cristian Barrera-Hinojosa, Baojiu Li * https://ui.adsabs.harvard.edu/abs/2020arXiv200109889S ArXiv:2001.09889 - Redshift and gauge choice - Harald Skarke Cheers Boud

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inhom newsletter December 2019
by Boud Roukema 06 Dec '19

06 Dec '19

hi inhom subscribers WORKSHOPS: * pdfs presented at Inhomogeneous Cosmologies IV: https://cosmo.torun.pl/cosmotorun19_prog.html ARXIV/ADS: inhomogeneous cosmology articles since 12 07 2019: * https://ui.adsabs.harvard.edu/abs/2019arXiv190708681K - ArXiv:1907.08681 - Towards statistically homogeneous and isotropic perfect fluid universes with cosmic backreaction - S. M. Koksbang * https://ui.adsabs.harvard.edu/abs/2019arXiv190708684B - ArXiv:1907.08684 - CMB dipoles and other low-order multipoles in the quasispherical Szekeres model - Buckley, Robert G.; Schlegel, Eric M. * https://ui.adsabs.harvard.edu/abs/2019arXiv190711101R ArXiv:1907.11101 - CBL test: The Cosmological Consistency Relation in a Universe with Structure - Varun Rustagi, Ruth Durrer * https://ui.adsabs.harvard.edu/abs/2019arXiv190711219L ArXiv:1907.11219 - Exploring the evidence for a large local void with supernovae Ia data - Vladimir V. Luković, Balakrishna S. Haridasu, Nicola Vittorio * https://ui.adsabs.harvard.edu/abs/2019arXiv190805683E ArXiv:1908.05683 - Einstein-Vlasov Calculations of Structure Formation - East, William E.; Wojtak, Radosław; Pretorius, Frans * https://ui.adsabs.harvard.edu/abs/2019arXiv190900610K ArXiv:1909.00610 - Light path averages in spacetimes with non-vanishing average spatial curvature - S. M. Koksbang * https://ui.adsabs.harvard.edu/abs/2019arXiv190811508H ArXiv:1908.11508 - Quantifying the accuracy of the Alcock-Paczynski scaling of baryon acoustic oscillation measurements - Asta Heinesen, Chris Blake, David L. Wiltshire * https://ui.adsabs.harvard.edu/abs/2019arXiv190901878S ArXiv:1909.01878 - Local Hole revisited: evidence for bulk motions and self-consistent outflow - T. Shanks, L.M. Hogarth, N. Metcalfe, J. Whitbourn * https://ui.adsabs.harvard.edu/abs/2019arXiv190913489K ArXiv:1909.13489 - Another look at redshift drift and the backreaction conjecture - S. M. Koksbang * https://ui.adsabs.harvard.edu/abs/2019arXiv191109469F ArXiv:1911.09469 - Generalized covariant prescriptions for averaging cosmological observables - Giuseppe Fanizza, Maurizio Gasperini, Giovanni Marozzi, Gabriele Veneziano Cheers Boud

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inhom newsletter July 2019
by Boud Roukema 12 Jul '19

12 Jul '19

hi inhom subscribers! WORKSHOPS: * IC IV 14-19 July 2019: https://cosmo.torun.pl/CosmoTorun19 If you're not attending, check the website for updates: e.g. pdfs of talks; notes on the wiki pages linked from "Software". JOBS: * http://www.icg.port.ac.uk/2019/06/postdoctoral-research-fellow/ 12-month ICG Portsmouth cosmology postdoc (Bruni, Wands et al) to start 1 October 2019; deadline **16 July 2019** WHITE PAPER: * clone or download and compile, without logging in: https://bitbucket.org/broukema/whitepaper_inhomog * OR download, edit, upload, check history, with overleaf account: git clone https://git.overleaf.com/5c3db40ac41fc0665b938eaf * OR edit, view, with overleaf/orcid/GAFAM account: https://overleaf.com/16937394rvbwybqsvgjp ARXIV/ADS: inhomogeneous cosmology articles since 4 May 2019: * https://arxiv.org/abs/1905.04588 - Spatial Curvature in Cosmology Revisited - A. A. Coley * https://arxiv.org/abs/1905.08890 - GRAMSES: a new route to general relativistic N-body simulations in cosmology - I. Methodology and code description - Cristian Barrera-Hinojosa, Baojiu Li * https://arxiv.org/abs/1905.11721 - The large-scale general-relativistic correction for Newtonian mocks - Julian Adamek, Christian Fidler Cheers Boud

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inhom newsletter May 2019
by Boud Roukema 04 May '19

04 May '19

hi inhom subscribers! WORKSHOPS: * **Friday 10 May 2019** early registration deadline for IC IV: https://cosmo.torun.pl/CosmoTorun19 * 2-6 Sep 2019 Einstein Toolkit Euro workshop @King's College, London, registration/abstract deadline 31 July 2019, no registration fee: https://sites.google.com/view/eetm2019/home SOFTWARE: * gevolution-1.2 release: git clone https://github.com/broukema/gevolution-1.1.git cd gevolution-1.1 git checkout branch-v1p2 git diff -b --stat master..branch-v1p2 # summarise the differences git diff -b master..branch-v1p2 # read the differences ARXIV/ADS: inhomogeneous cosmology articles since 17 April 2019: * https://arxiv.org/abs/1904.09689 - (ArXiv version of PTEP article of 2015) - A possible solution to the Hubble constant discrepancy -- Cosmology where the local volume expansion is driven by the domain average density - Masumi Kasai, Toshifumi Futamase Cheers Boud

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inhom newsletter April 2019
by Boud Roukema 17 Apr '19

17 Apr '19

hi inhom subscribers, WORKSHOPS: * 14-19 July 2019 @Toruń - Inhomogeneous Cosmologies IV - registration is open: ***early registration deadline 3 May 2019*** - https://cosmo.torun.pl/CosmoTorun19 SOFTWARE: * gevolution-1.2 may be released at 2019-05-07 to 2019-05-08 QMUL meeting - https://github.com/gevolution-code * inhomog-0.1.0 released 2019-02-24 - https://bitbucket.org/broukema/inhomog/downloads/?tab=tags ARXIV/ADS: inhomogeneous cosmology articles since 16 February 2019: * https://arxiv.org/abs/1902.07915 - Dynamical spatial curvature as a fit to type Ia supernovae - Célia Desgrange, Asta Heinesen, Thomas Buchert * https://arxiv.org/abs/1902.08441 - Dark Matter from Backreaction? Collapse models on galaxy cluster scales - Quentin Vigneron, Thomas Buchert * https://arxiv.org/abs/1902.09064 - Does spatial flatness forbid the turnaround epoch of collapsing structures? - Boudewijn F. Roukema, Jan J. Ostrowski, Pierre Mourier, Quentin Vigneron * https://arxiv.org/abs/1902.09769 - The perturbed FLRW metric on all scales: Newtonian limit and top-hat collapse - Andreas Finke * https://arxiv.org/abs/1902.11298 - Measuring the Homogeneity of the Universe - Raul Jimenez, Roy Maartens, Ali Rida Khalifeh, Robert R. Caldwell, Alan F. Heavens, Licia Verde * https://arxiv.org/abs/1903.02474 - 4MOST Consortium Survey 8: Cosmology Redshift Survey (CRS) - Johan Richard et al - briefly includes inhomogeneous cosmology among observational goals * https://arxiv.org/abs/1904.02557 - Cosmological Backreaction in Spherical and Plane Symmetric Dust-Filled Space-Times - Timothy Clifton, Roberto A. Sussman * https://arxiv.org/abs/1904.07841 - General Relativistic Cosmological N-body Simulations I: time integration - David Daverio, Yves Dirian, Ermis Mitsou Cheers Boud

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inhom newsletter February 2019
by Boud Roukema 15 Feb '19

15 Feb '19

hi everyone, WORKSHOPS: * 7-8 May 2019 @QMUL gevolution users and developers meeting https://www.qmul.ac.uk/spa/astro/events/gevolution-meeting/ * 14-19 July 2019 @Toruń - Inhomogeneous Cosmologies IV - (announcement below) https://cosmo.torun.pl/cosmotorun19.html * (Two weeks earlier, for beyond-GR rather than inhomogeneous-GR cosmology: 1-5 July @Warsaw - Beyond General Relativity, Beyond Cosmological Standard Model https://indico.cern.ch/event/778333/ .) JOBS: * DEADLINE 22 FEB 2019 (REMINDER) 12- to 24-month inhomogeneous cosmology postdoctoral positions at TCfA Nicolaus Copernicus University https://euraxess.ec.europa.eu/jobs/368908 Inhomogeneous Cosmologies IV During 14-19 July 2019 we are gathering experts in inhomogeneous cosmology for a small workshop of about 30 participants at Nicolaus Copernicus University in Torun, the town where Copernicus was born. We wish to map out the most promising directions for analytical, numerical and observational investigations aimed to take into account both structure formation and cosmological expansion within the constraints of general relativity. Can we clarify the physics present in the relativistic cosmology software now being developed? Are the calculations artificially constrained or are they fully relativistic? Can we achieve accurate postdiction of cosmological observations and follow up by making predictions for the upcoming decade of new major survey projects? We expect vigorous, constructive debate between "one-percenters" and "order-unity" proponents, and practical hands-on sessions of free-licensed inhomogeneous cosmology software packages. Feel free to redistribute this announcement. Check the CosmoTorun19 website or subscribe to the inhom newsletter to know when registration is open. More info: https://cosmo.torun.pl/CosmoTorun19 Newsletter 'inhom': https://cosmo.torun.pl/mailman/listinfo/inhom Contact: cosmotorun19 at cosmo.torun.pl Organising committee: Boud Roukema, Eloisa Bentivegna, Krzysztof Bolejko, Thomas Buchert, Mikolaj Korzyński, Hayley Macpherson, Jan Ostrowski, Sebastian Szybka, Eleonora Villa, David Wiltshire Topics will include: * exact cosmological solutions of the Einstein equations * averaging and backreaction in cosmology * numerical cosmological relativity * observational tests Cheers Boud

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inhom newsletter January 2019
by Boud Roukema 15 Jan '19

15 Jan '19

hi all Jobs: * https://euraxess.ec.europa.eu/jobs/368908 - 12- to 24-month inhomogeneous cosmology postdoctoral positions at TCfA Nicolaus Copernicus University ArXiv/ADS: inhomogeneous cosmology articles since 9 Dec 2018 (+ a few from November): * https://arxiv.org/abs/1811.10917 - Reduced phase space optics for general relativity: Symplectic ray bundle transfer * https://arXiv.org/abs/1811.11963 - Baryon acoustic oscillation methods for generic curvature: Application to the SDSS-III Baryon Oscillation Spectroscopic Survey - Asta Heinesen, Chris Blake, Yong-Zhuang Li, David L. Wiltshire * https://arxiv.org/abs/1812.04336 - Bias and scatter in the Hubble diagram from cosmological large-scale structure - "all the relevant effects from general relativity" - Julian Adamek, Chris Clarkson, Louis Coates, Ruth Durrer, Martin Kunz * https://arxiv.org/abs/1812.11112 - Einstein clusters as models of inhomogeneous spacetimes - Sebastian J. Szybka, Mieszko Rutkowski Other: * https://cqgplus.com/2018/11/28/space-is-the-place/ Cheers Boud

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inhom newsletter November 2018
by Boud Roukema 09 Dec '18

09 Dec '18

hi inhom newsletter recipients, ArXiv/ADS: inhomogeneous cosmology articles since 2 Nov 2018: * https://arxiv.org/abs/1811.03634 - Non-comoving baryons and cold dark matter in cosmic voids - Ismael Delgado Gaspar, Juan Carlos Hidalgo, Roberto A. Sussman * https://arxiv.org/abs/1811.01374 - On the covariance of scalar averaging and backreaction in relativistic inhomogeneous cosmology - Asta Heinesen, Pierre Mourier, Thomas Buchert * http://cdsads.u-strasbg.fr/abs/2018CQGra..35xLT02B - Cosmological backreaction and its dependence on spacetime foliation - Buchert, Thomas; Mourier, Pierre; Roy, Xavier * https://arxiv.org/abs/1811.11976 - Hubble flow variations as a test for inhomogeneous cosmology - Christoph Saulder, Steffen Mieske, Eelco van Kampen, Werner W. Zeilinger * https://arxiv.org/abs/1812.01586 - Comment on "Hubble flow variations as a test for inhomogeneous cosmology" - David L. Wiltshire * "relativistic effects" (do these count as on-topic or off-topic?) * https://arxiv.org/abs/1811.05458 - Imprints of local lightcone projection effects on the galaxy bispectrum IV: Second-order vector and tensor contributions - Sheean Jolicoeur, Alireza Allahyari, Chris Clarkson, Julien Larena, Obinna Umeh, Roy Maartens * https://arxiv.org/abs/1811.05452 - Relativistic cosmological large scale structures at one-loop - Lina Castiblanco, Radouane Gannouji, Jorge Noreña, Clément Stahl Cheers Boud

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inhom newsletter October 2018
by Boud Roukema 02 Nov '18

02 Nov '18

hi all, * white paper: minor additions: +stub of computational challenges subsubsection; +foliation vs gauge definitions; +references; (web: https://overleaf.com/16937394rvbwybqsvgjp ; git: https://git.overleaf.com/16937394rvbwybqsvgjp ) * arXiv/ADS: inhomogeneous cosmology articles since 30 Sep 2018: * https://arxiv.org/abs/1810.05203 1% from simulations: The Limited Accuracy of Linearized Gravity, Giblin, Mertens, Starkman, Tian * https://arxiv.org/abs/1810.06318 Fractal universe and cosmic acceleration in a Lemaître-Tolman-Bondi scenario - Cosmai, Fanizza, Sylos Labini, Pietronero, Tedesco * https://arxiv.org/abs/1810.09188 8-page conf proceeding - Is Dark Energy Simulated by Structure Formation in the Universe ? - Thomas Buchert * https://arxiv.org/abs/1810.10835 A Relativistic Interpretation of Bias in Newtonian Simulations - Christian Fidler, Nils Sujata, Cornelius Rampf * https://arxiv.org/abs/1810.12793 perturbative LCDM version of Doppler magnification - Andrianomena, Bonvin, Bacon, Bull, Clarkson, Maartens, Moloi ( cf LTB/Szekeres Doppler magnification: http://adsabs.harvard.edu/abs/2013PhRvL.110b1302B ) Cheers Boud

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