Dark Matter and Cosmic Structure
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Curriculum Vitæ 0000-0002-2769-9507
Institut de Physique des 2 Infinis de Lyon 4 rue Enrico Fermi, Université Claude Bernard Lyon 1 Lyon, 69622 Villeurbanne B [email protected] Oliver Newton MusicalNeutron Musical-Neutron Curriculum Vitæ 0000-0002-2769-9507 Employment & voluntary work Vocational 2019– Postdoctoral Researcher, Institut de Physique des Deux Infinis, Lyon, France. 2014–2015 Graduate Trading Platform Engineer, Fidessa, Woking, UK. Volunteering 2014–2020 Founding trustee & Treasurer, UniBrass Foundation (charity number: 1159359), UK. Education 2015–2019 PhD, Institute for Computational Cosmology, Durham, UK. Probing the nature of dark matter with small-scale cosmology Supervisors: Prof. Adrian Jenkins and Prof. Carlos Frenk 2010–2014 BSc MPhys, University of Warwick, Coventry, UK, 1st Class (Hons). Masters project: Determining the fundamental properties of Higgs candidates at the LHC Awards and scholarships 2019 ICC Research Scholarship, Institute for Computational Cosmology, Durham, UK. 2015–2019 STFC Postgraduate Studentship, Institute for Computational Cosmology, Durham, UK. Conference contributions Contributed talks July 2020 EAS (Online), Leiden, Netherlands. Constraining the properties of WDM using the satellite galaxies of the Milky Way Jan 2020 VIRGO Consortium meeting, Durham, UK. Constraining the properties of WDM using the satellite galaxies of the Milky Way Sep 2019 CLUES Collaboration meeting, IN2P3, Lyon, France. Constraints on thermal relic WDM from satellites of the LG July 2019 Small Galaxies, Cosmic Questions, Durham, UK. Constraints on the mass of the thermal relic warm dark matter particle Jan 2019 DEX XV, Edinburgh, UK. Constraints on the mass of the thermal relic warm dark matter particle Dec 2018 VIRGO Consortium meeting, Leiden University, Netherlands. Constraints on the mass of the thermal relic warm dark matter particle Aug 2018 XXX IAU General Assembly, Vienna, Austria. -
Calibrating the Fundamental Plane with SDSS DR8 Data⋆
A&A 557, A21 (2013) Astronomy DOI: 10.1051/0004-6361/201321466 & c ESO 2013 Astrophysics Calibrating the fundamental plane with SDSS DR8 data Christoph Saulder1,2,Steffen Mieske1, Werner W. Zeilinger2, and Igor Chilingarian3,4 1 European Southern Observatory, Alonso de Córdova 3107, Vitacura, Casilla 19001, Santiago, Chile e-mail: [csaulder,smieske]@eso.org 2 Department of Astrophysics, University of Vienna, Türkenschanzstraße 17, 1180 Vienna, Austria e-mail: [email protected] 3 Smithsonian Astrophysical Observatory, Harvard-Smithsonian Center for Astrophysics, 60 Garden St. MS09 Cambridge, MA 02138, USA e-mail: [email protected] 4 Sternberg Astronomical Institute, Moscow State University, 13 Universitetski prospect, 119992 Moscow, Russia Received 13 March 2013 / Accepted 27 May 2013 ABSTRACT We present a calibration of the fundamental plane using SDSS Data Release 8. We analysed about 93 000 elliptical galaxies up to z < 0.2, the largest sample used for the calibration of the fundamental plane so far. We incorporated up-to-date K-corrections and used GalaxyZoo data to classify the galaxies in our sample. We derived independent fundamental plane fits in all five Sloan filters u, g, r, i,andz. A direct fit using a volume-weighted least-squares method was applied to obtain the coefficients of the fundamental plane, which implicitly corrects for the Malmquist bias. We achieved an accuracy of 15% for the fundamental plane as a distance indicator. We provide a detailed discussion on the calibrations and their influence on the resulting fits. These re-calibrated fundamental plane relations form a well-suited anchor for large-scale peculiar-velocity studies in the nearby universe. -
Southwest Florida Astronomical Society SWFAS
Southwest Florida Astronomical Society SWFAS The Eyepiece September 2013 A MESSAGE FROM THE PRESIDENT I hope everyone had a good Labor Day weekend! Well, as I said last month, Comet ISON is on its way. How it will perform is still uncertain. I will be talking about it and other upcoming events as our program this month. This summer the rain has really hurt observing. Did anyone get to see Nova Delphini at its brightest? We have a very busy fall/winter season with a lot of events and requests. Please let me know if you can help at any of the events. I will be sending out updated calendars regularly. Our October meeting program is to be determined. If you have a presentation or idea for a program, please let me know! Carole Holmberg has a public event planned for Friday Sept 13th at 8pm at the CNCP. The November meeting is our annual Telescope Renaissance night (with observing) starting at 7pm on the 7th at the CNCP. There will be no formal meeting that night. Moon: Sep New 5th, 1st Quarter 12th, Full 19th, Last Quarter 26th Oct New 4th, 1st Quarter 11th, Full 18th, Last Quarter 26th Star Parties: September 14, October 5, November 2, November 30, December 28. The planets: Venus is dominating the evening sky after sunset as Saturn slips further towards the sun. Mercury will make a brief appearance midmonth after sunset. Mars is reappearing in the morning sky (key to finding ISON) and Jupiter rises a few hours after midnight. Club Positions President: Program Coordinator: (239-940-2935) Brian Risley Vacant Club Historian: swfasbrisley@embarqmail. -
Astronomy Club of Tulsa Observer August 2013
Astronomy Club of Tulsa Observer August 2013 Photo: The Night Sky from 3RF, by Jerry Mullenix. Thank you Jerry! Permission to reprint anything from this newsletter is granted, PROVIDED THAT CREDIT IS GIVEN TO THE ORIGINAL AUTHOR AND THAT THE ASTRONOMY CLUB OF TULSA “OBSERVER” IS LISTED AS THE ORIGINAL SOURCE. For original content credited to others and so noted in this publication, you should obtain permission from that respective source prior to re-printing. Thank you very much for your cooperation. Please enjoy this edition of the Observer. Inside This Edition: Article/Item Page Calendar and Upcoming Events 3 President’s Message, by Lee Bickle 4 Treasurer’s and Membership Report, by John Land 5 The Secretary’s Stuff, by Tamara Green 7 NITELOG, by Tom Hoffelder 10 Size Does Matter, But So Does Dark Energy, by Dr. Ethan Siegel 14 Where We Meet 17 Officers, Board, Staff and Membership Info 18 The Editor wishes a big fat To Owen Green, whose birthday is August 29! Many Happy Returns Owen! 2 August 2013 September 2013 Sun Mon Tue Wed Thu Fri Sat Sun Mon Tue Wed Thu Fri Sat 1 2 MN 3 MNB 1 2 3 4 5 6 MN 7 MNB 4 5 6 7 8 9 10 8 9 10 11 12 13 14 11 12 13 14 15 16 17 SW 15 16 17 18 19 20 CM 21 SW 18 19 20 21 22 23 PSP 24 22 23 24 25 26 27 28 PSPB PSPB 25 26 27 28 29 30 31 29 30 UPCOMING EVENTS: Sidewalk Astronomy Sat Aug 17 Bass Pro 7:45 PM Public Star Party Fri Aug 23 ACT Observatory 7:30 PM Labor Day Mon Sep 2 Members’ Night Fri Sep 6 ACT Observatory 7:00 PM General Meeting Fri Sep 20 TCC NE Campus 7:00 PM Sidewalk Astronomy Sat Sep 21 Bass Pro 7:15 PM Public Star Party Fri Sep 27 ACT Observatory 6:30 PM OKIE-TEX STAR PARTY is Sep 28 thru Oct 6 at Black Mesa! 3 President’s Message By Lee Bickle Hello everyone! Although July was a little unusual for us in the way of cooler temps and rain, we still had a busy month. -
A Mock Catalogue of Galaxy Luminosities, Colours and Positions for Cosmology
Durham E-Theses Rosella: A mock catalogue of galaxy luminosities, colours and positions for cosmology SAFONOVA, ALEKSANDRA How to cite: SAFONOVA, ALEKSANDRA (2019) Rosella: A mock catalogue of galaxy luminosities, colours and positions for cosmology, Durham theses, Durham University. Available at Durham E-Theses Online: http://etheses.dur.ac.uk/13321/ Use policy This work is licensed under a Creative Commons Attribution Non-commercial No Derivatives 2.0 UK: England & Wales (CC BY-NC-ND) Academic Support Oce, Durham University, University Oce, Old Elvet, Durham DH1 3HP e-mail: [email protected] Tel: +44 0191 334 6107 http://etheses.dur.ac.uk Rosella: A mock catalogue of galaxy luminosities, colours and positions for cosmology Sasha Safonova A thesis presented for the degree of Master of Science by Research Institute for Computational Cosmology Department of Physics The University of Durham United Kingdom August 2019 Dedicated to Margarita Safonova, who devoted her life to the search for controlled thermonuclear fusion and taught me that physics adds a game to any situation. Rosella: A mock catalogue of galaxy luminosities, colours and positions for cosmology Sasha Safonova Abstract The scientific exploitation of the Dark Energy Spectroscopic Instrument Bright Galaxy Survey (DESI BGS) data requires the construction of mocks with galaxy population properties closely mimicking those of the actual DESI BGS targets. We create a high fidelity mock galaxy catalogue that can be used to interpret the DESI BGS data, as well as meeting the precision required for the tuning of thousands of approximate DESI BGS mocks needed for cosmological analyses with DESI BGS data. -
Indra: a Public Computationally Accessible Suite of Cosmological 푁-Body Simulations
MNRAS 000,1–12 (2021) Preprint 5 August 2021 Compiled using MNRAS LATEX style file v3.0 Indra: a Public Computationally Accessible Suite of Cosmological #-body Simulations Bridget Falck,1¢ Jie Wang,2,3 Adrian Jenkins,4 Gerard Lemson,1 Dmitry Medvedev,1 Mark C. Neyrinck,5,6 Alex S. Szalay1 1Department of Physics and Astronomy, Johns Hopkins University, 3400 N Charles St, Baltimore, MD 21218, USA 2National Astronomical Observatories, Chinese Academy of Sciences, Beijing, 100012, China 3School of Astronomy and Space Science, University of Chinese Academy of Sciences, Beijing 100049, China 4Institute for Computational Cosmology, Department of Physics, Durham University, Durham DH1 3LE, UK 5Ikerbasque, the Basque Foundation for Science, 48009, Bilbao, Spain 6Department of Physics, University of the Basque Country UPV/EHU, 48080, Bilbao, Spain Accepted XXX. Received YYY; in original form ZZZ; Draft version 5 August 2021 ABSTRACT Indra is a suite of large-volume cosmological #-body simulations with the goal of providing excellent statistics of the large-scale features of the distribution of dark matter. Each of the 384 simulations is computed with the same cosmological parameters and different initial phases, with 10243 dark matter particles in a box of length 1 ℎ−1 Gpc, 64 snapshots of particle data and halo catalogs, and 505 time steps of the Fourier modes of the density field, amounting to almost a petabyte of data. All of the Indra data are immediately available for analysis via the SciServer science platform, which provides interactive and batch computing modes, personal data storage, and other hosted data sets such as the Millennium simulations and many astronomical surveys. -
The 2Df Galaxy Redshift Survey and Cosmological Simulations Carlos S
University of Durham The 2dF galaxy redshift survey and cosmological simulations Carlos S. Frenk Institute for Computational Cosmology, Durham Institute for Computational Cosmology The 2dF Galaxy Redshift University of Durham Survey 1997- 2002 250 nights at 4m AAT 221,000 redshifts to bj<19.45 median z = 0.11 First 100k z's released June/01 Full catalogue released July/03 Institute for Computational Cosmology 2dF Galaxy Redshift Survey: University of Durham Team Members Ivan K. Baldry10 Carlton M. Baugh2 Joss Bland-Hawthorn1 Terry Bridges1 Russell Cannon1 Shaun Cole2 Matthew Colless3 Chris Collins13 Warrick Couch5 Nicholas Cross6 Gavin Dalton9 Kathryn Deely5 Roberto De Propris5 Simon P. Driver6 George Efstathiou8 Richard S. Ellis7 Carlos S. Frenk2 Karl Glazebrook10 Edward Hawkins12 Carole Jackson3 Ofer Lahav8 Ian Lewis9 Stuart Lumsden11 Steve Maddox12 Darren Madgwick8 Stephen Moody8 Peder Norberg2 John A. Peacock4 Will Precival4 Bruce A. Peterson3 Mark Seaborne9 Will Sutherland4 Keith Taylor7 Institutions 1Anglo-Australian Observatory 2University of Durham 3The Australian National University 4University of Edinburgh 5University of New South Wales 6University of St Andrews 7California Institute of Technology 8University of Cambridge 9University of Oxford 10Johns Hopkins University 33 people at 11University of Leeds 12University of Nottingham 13 Liverpool John Moores University 12 Institute for Computational Cosmology institutions The 2dF galaxy redshift survey University of Durham QuickTimeã and a YUV420 codec decompressor are needed to -
Prime Focus 2º Below Venus for Much Fainter Spica
Highlights of the September Sky. - - - 5thth → 6h - - - DUSK: Low in the west- southwest, look less than Prime Focus 2º below Venus for much fainter Spica. A Publication of the Kalamazoo Astronomical Society - - - 5th - - - September 2013 New Moon 7:36 am EDT - - - 8thth → 9thth - - - AM: Mars passes through M44, the Beehive Cluster ThisThis MonthsMonths KAS EventsEvents in Cancer. - - - 8thth - - - DUSK: Venus is very close General Meeting: Friday, September 13 @ 7:00 pm to a thin crescent Moon, Kalamazoo Area Math & Science Center - See Page 8 for Details with Spica nearby and Saturn to their upper left. th Observing Session: Saturday, September 14 @ 8:00 pm - - - 9th - - - DUSK: Saturn is to the The Moon, Uranus & Neptune - Kalamazoo Nature Center right of the Moon, with Venus to their lower left. Board Meeting: Sunday, September 15 @ 5:00 pm - - - 12thth - - - First Quarter Moon Sunnyside Church - 2800 Gull Road - All Members Welcome 1:08 pm EDT Observing Session: Saturday, September 28 @ 8:00 pm - - - 16thth → 19thth - - - DUSK: Saturn is less than Overwhelming Open Clusters - Kalamazoo Nature Center 4º from Venus. - - - 19th - - - Full Moon 7:13 am EDT InsideInside thethe Newsletter.Newsletter. .. .. - - - 22nd - - - Equinox: Autumn begins in the Northern Hemisphere Perseid Potluck Picnic Report............. p. 2 at 4:44 pm. Observations........................................... p. 2 - - - 24thth - - - DUSK: Binoculars and Stargazing at the Kiwanis Area............ p. 3 telescopes should show Spica just ¾º below Bruce C. Murray..................................... p. 4 brighter Mercury very low in WSW 15 - 30 minutes NASA Space Place.................................. p. 5 after sunset. September Night Sky............................. p. 6 - - - 26th - - - Last Quarter Moon KAS Board & Announcements............ p. 7 11:55 pm EDT General Meeting Preview.................... -
Observational Cosmology - 30H Course 218.163.109.230 Et Al
Observational cosmology - 30h course 218.163.109.230 et al. (2004–2014) PDF generated using the open source mwlib toolkit. See http://code.pediapress.com/ for more information. PDF generated at: Thu, 31 Oct 2013 03:42:03 UTC Contents Articles Observational cosmology 1 Observations: expansion, nucleosynthesis, CMB 5 Redshift 5 Hubble's law 19 Metric expansion of space 29 Big Bang nucleosynthesis 41 Cosmic microwave background 47 Hot big bang model 58 Friedmann equations 58 Friedmann–Lemaître–Robertson–Walker metric 62 Distance measures (cosmology) 68 Observations: up to 10 Gpc/h 71 Observable universe 71 Structure formation 82 Galaxy formation and evolution 88 Quasar 93 Active galactic nucleus 99 Galaxy filament 106 Phenomenological model: LambdaCDM + MOND 111 Lambda-CDM model 111 Inflation (cosmology) 116 Modified Newtonian dynamics 129 Towards a physical model 137 Shape of the universe 137 Inhomogeneous cosmology 143 Back-reaction 144 References Article Sources and Contributors 145 Image Sources, Licenses and Contributors 148 Article Licenses License 150 Observational cosmology 1 Observational cosmology Observational cosmology is the study of the structure, the evolution and the origin of the universe through observation, using instruments such as telescopes and cosmic ray detectors. Early observations The science of physical cosmology as it is practiced today had its subject material defined in the years following the Shapley-Curtis debate when it was determined that the universe had a larger scale than the Milky Way galaxy. This was precipitated by observations that established the size and the dynamics of the cosmos that could be explained by Einstein's General Theory of Relativity. -
Public Release of N-Body Simulation and Related Data by the Virgo Consortium
Mon. Not. R. Astron. Soc. 000, 1–4 (2000) Printed 25 October 2018 (MN LATEX style file v1.4) Public Release of N-body simulation and related data by the Virgo consortium. C. S. Frenk,1 J. M. Colberg,2 H. M. P. Couchman,3 G. Efstathiou,4 A. E. Evrard,5 A. Jenkins,1 T. J. MacFarland,6 B. Moore,1 J. A. Peacock,7 F. R. Pearce,1 P. A. Thomas,8 S. D. M. White2 and N. Yoshida.2 (The Virgo Consortium)10 1 Dept Physics, South Road, Durham, DH1 3LE. 2 Max-Planck Inst. for Astrophysics, Garching, Munich, D-85740, Germany. 3 Department of Physics and Astronomy, McMaster University, Hamilton, Ontario, L8S 4M1, Canada 4 Institute of Astronomy, Madingley Road, Cambridge CB3 OHA 6 Now at 105 Lexington Avenue, Apt. 6F,New York, NY 10016 5 Dept Physics, University of Michigan, Ann Arbor, MI-48109-1120. 7 Royal Observatory, Institute of Astronomy, Edinburgh, EH9 3HJ 8 Astronomy Centre,CPES, University of Sussex, Falmer, Brighton, BN1 9QJ 10 http://star-www.dur.ac.uk/∼frazerp/virgo/ 25 October 2018 ABSTRACT We are making available on the WWW a selection of the archived data from N-body simulations carried out by the Virgo consortium and related groups. This currently includes: (i) time-slice, lightcone and cluster data from the two 109-particle Hubble volume simulations described by Evrard 1998; (ii) time-slice data from simula- tions of 4 different cold dark matter cosmological models with 2563 particles analysed by Jenkins et al 1998; (iii) Dark halo catalogs, merger trees and galaxy catalogs from arXiv:astro-ph/0007362v1 25 Jul 2000 the GIF project described by Kauffmann et al 1999. -
Orders of Magnitude (Length) - Wikipedia
03/08/2018 Orders of magnitude (length) - Wikipedia Orders of magnitude (length) The following are examples of orders of magnitude for different lengths. Contents Overview Detailed list Subatomic Atomic to cellular Cellular to human scale Human to astronomical scale Astronomical less than 10 yoctometres 10 yoctometres 100 yoctometres 1 zeptometre 10 zeptometres 100 zeptometres 1 attometre 10 attometres 100 attometres 1 femtometre 10 femtometres 100 femtometres 1 picometre 10 picometres 100 picometres 1 nanometre 10 nanometres 100 nanometres 1 micrometre 10 micrometres 100 micrometres 1 millimetre 1 centimetre 1 decimetre Conversions Wavelengths Human-defined scales and structures Nature Astronomical 1 metre Conversions https://en.wikipedia.org/wiki/Orders_of_magnitude_(length) 1/44 03/08/2018 Orders of magnitude (length) - Wikipedia Human-defined scales and structures Sports Nature Astronomical 1 decametre Conversions Human-defined scales and structures Sports Nature Astronomical 1 hectometre Conversions Human-defined scales and structures Sports Nature Astronomical 1 kilometre Conversions Human-defined scales and structures Geographical Astronomical 10 kilometres Conversions Sports Human-defined scales and structures Geographical Astronomical 100 kilometres Conversions Human-defined scales and structures Geographical Astronomical 1 megametre Conversions Human-defined scales and structures Sports Geographical Astronomical 10 megametres Conversions Human-defined scales and structures Geographical Astronomical 100 megametres 1 gigametre -