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Cosmicflows-3: Cosmography of the Local Void
Draft version May 22, 2019 Preprint typeset using LATEX style AASTeX6 v. 1.0 COSMICFLOWS-3: COSMOGRAPHY OF THE LOCAL VOID R. Brent Tully, Institute for Astronomy, University of Hawaii, 2680 Woodlawn Drive, Honolulu, HI 96822, USA Daniel Pomarede` Institut de Recherche sur les Lois Fondamentales de l'Univers, CEA, Universite' Paris-Saclay, 91191 Gif-sur-Yvette, France Romain Graziani University of Lyon, UCB Lyon 1, CNRS/IN2P3, IPN Lyon, France Hel´ ene` M. Courtois University of Lyon, UCB Lyon 1, CNRS/IN2P3, IPN Lyon, France Yehuda Hoffman Racah Institute of Physics, Hebrew University, Jerusalem, 91904 Israel Edward J. Shaya University of Maryland, Astronomy Department, College Park, MD 20743, USA ABSTRACT Cosmicflows-3 distances and inferred peculiar velocities of galaxies have permitted the reconstruction of the structure of over and under densities within the volume extending to 0:05c. This study focuses on the under dense regions, particularly the Local Void that lies largely in the zone of obscuration and consequently has received limited attention. Major over dense structures that bound the Local Void are the Perseus-Pisces and Norma-Pavo-Indus filaments sepa- rated by 8,500 km s−1. The void network of the universe is interconnected and void passages are found from the Local Void to the adjacent very large Hercules and Sculptor voids. Minor filaments course through voids. A particularly interesting example connects the Virgo and Perseus clusters, with several substantial galaxies found along the chain in the depths of the Local Void. The Local Void has a substantial dynamical effect, causing a deviant motion of the Local Group of 200 − 250 km s−1. -
And Ecclesiastical Cosmology
GSJ: VOLUME 6, ISSUE 3, MARCH 2018 101 GSJ: Volume 6, Issue 3, March 2018, Online: ISSN 2320-9186 www.globalscientificjournal.com DEMOLITION HUBBLE'S LAW, BIG BANG THE BASIS OF "MODERN" AND ECCLESIASTICAL COSMOLOGY Author: Weitter Duckss (Slavko Sedic) Zadar Croatia Pусскй Croatian „If two objects are represented by ball bearings and space-time by the stretching of a rubber sheet, the Doppler effect is caused by the rolling of ball bearings over the rubber sheet in order to achieve a particular motion. A cosmological red shift occurs when ball bearings get stuck on the sheet, which is stretched.“ Wikipedia OK, let's check that on our local group of galaxies (the table from my article „Where did the blue spectral shift inside the universe come from?“) galaxies, local groups Redshift km/s Blueshift km/s Sextans B (4.44 ± 0.23 Mly) 300 ± 0 Sextans A 324 ± 2 NGC 3109 403 ± 1 Tucana Dwarf 130 ± ? Leo I 285 ± 2 NGC 6822 -57 ± 2 Andromeda Galaxy -301 ± 1 Leo II (about 690,000 ly) 79 ± 1 Phoenix Dwarf 60 ± 30 SagDIG -79 ± 1 Aquarius Dwarf -141 ± 2 Wolf–Lundmark–Melotte -122 ± 2 Pisces Dwarf -287 ± 0 Antlia Dwarf 362 ± 0 Leo A 0.000067 (z) Pegasus Dwarf Spheroidal -354 ± 3 IC 10 -348 ± 1 NGC 185 -202 ± 3 Canes Venatici I ~ 31 GSJ© 2018 www.globalscientificjournal.com GSJ: VOLUME 6, ISSUE 3, MARCH 2018 102 Andromeda III -351 ± 9 Andromeda II -188 ± 3 Triangulum Galaxy -179 ± 3 Messier 110 -241 ± 3 NGC 147 (2.53 ± 0.11 Mly) -193 ± 3 Small Magellanic Cloud 0.000527 Large Magellanic Cloud - - M32 -200 ± 6 NGC 205 -241 ± 3 IC 1613 -234 ± 1 Carina Dwarf 230 ± 60 Sextans Dwarf 224 ± 2 Ursa Minor Dwarf (200 ± 30 kly) -247 ± 1 Draco Dwarf -292 ± 21 Cassiopeia Dwarf -307 ± 2 Ursa Major II Dwarf - 116 Leo IV 130 Leo V ( 585 kly) 173 Leo T -60 Bootes II -120 Pegasus Dwarf -183 ± 0 Sculptor Dwarf 110 ± 1 Etc. -
Meteor 36. Évf. 11. Sz. (2006. November)
meteor Tartalom A Magyar Csillagászati Egyesület lapja Magyar-amerikai felfedezésű Journal of the Hungarian Astronomical exobolygó! 3 Association MCSE 1946-2006 5 H-1461 Budapest, Pf. 219., Hungary A lámák földjén 7 TeL/fax: (1) 279-0429 (hétköznap 8-20 ó.) Csillagászati hírek 13 E-mail: [email protected] Honlap: meteor.mcse.hu, www.mcse.hu A Besztercebányai Csillagvizsgáló 19 hirek.csillagaszat.hu A csillagos ég szépsége határtalan 21 Távcsőkészítés HU ISSN 0133-249X Egy új távcső születése 22 Főszerkesztő: Mizser Attila Számítástechnika Szerkesztők: Csaba György Gábor, Az XEphem 25 dr. Kiss László, dr. Kolláth Zoltán, Képmelléklet 34 Sárneczky Krisztián, Taracsák Gábor Csillagászattörténet és Tepliczky István Két közép-európai csillagvizsgáló A Meteor előfizetési díja 2006-ra évfordulójára 57 (nem tagok számára) 5500 Ft Róka Gedeon síremléke a Fiumei úti Egy szám ára: 460 Ft temetőben 62 Kiadványunkat az MCSE tagjai Programajánlat 64 illetményként kapják! Jelenségnaptár (december) 65 Tagnyilvántartás: Tepliczky István Tel.: (1) 464-1357, E-mail: [email protected] Megfigyelések Felelős kiadó: az MCSE elnöke Az egyesületi tagság formái (2006) Nap • rendes tagsági díj (közületek Észlelések (szeptember) 28 számára is!) (illetmény: Meteor + Hold Meteor csili, évkönyv 2006) 5400 Ft A három nővér 29 • rendes tagsági díj Csillagfedések 31 szomszédos országok 6500 Ft Meteorok nem szomszédos országok 9500 Ft 2005. július-augusztusi észlelések 35 • örökös tagdíj 135 000 Ft Üstökösök Az MCSE bankszámla-száma: A Nagy Becsapódás megfigyelése a 62900177-16700448 CARA észlelőhálózattal 38 Az MCSE adószáma: 19009162-2-43 Változócsillagok Az MCSE a beküldött anyagokat non-profit Észlelések (augusztus-szeptember) 44 céllal megjelentetheti az MCSE írott és Mélyég elektronikus fórumain, hacsak a szerző Észlelések (szeptember) 51 írásban másként nem rendelkezik. -
The Stellar Halos of Massive Elliptical Galaxies. Ii
The Astrophysical Journal, 776:64 (12pp), 2013 October 20 doi:10.1088/0004-637X/776/2/64 C 2013. The American Astronomical Society. All rights reserved. Printed in the U.S.A. THE STELLAR HALOS OF MASSIVE ELLIPTICAL GALAXIES. II. DETAILED ABUNDANCE RATIOS AT LARGE RADIUS Jenny E. Greene1,3, Jeremy D. Murphy1,4, Genevieve J. Graves1, James E. Gunn1, Sudhir Raskutti1, Julia M. Comerford2,4, and Karl Gebhardt2 1 Department of Astrophysics, Princeton University, Princeton, NJ 08540, USA 2 Department of Astronomy, UT Austin, 1 University Station C1400, Austin, TX 71712, USA Received 2013 June 24; accepted 2013 August 6; published 2013 September 26 ABSTRACT We study the radial dependence in stellar populations of 33 nearby early-type galaxies with central stellar velocity −1 dispersions σ∗ 150 km s . We measure stellar population properties in composite spectra, and use ratios of these composites to highlight the largest spectral changes as a function of radius. Based on stellar population modeling, the typical star at 2Re is old (∼10 Gyr), relatively metal-poor ([Fe/H] ≈−0.5), and α-enhanced ([Mg/Fe] ≈ 0.3). The stars were made rapidly at z ≈ 1.5–2 in shallow potential wells. Declining radial gradients in [C/Fe], which follow [Fe/H], also arise from rapid star formation timescales due to declining carbon yields from low-metallicity massive stars. In contrast, [N/Fe] remains high at large radius. Stars at large radius have different abundance ratio patterns from stars in the center of any present-day galaxy, but are similar to average Milky Way thick disk stars. -
International Registration Designating India Trade Marks Journal No: 1960 , 10/08/2020 Class 1
International Registration designating India Trade Marks Journal No: 1960 , 10/08/2020 Class 1 Priority claimed from 07/10/2019; Application No. : 88644417 ;United States of America 4513772 31/03/2020 [International Registration No. : 1528222] Thermo Fisher Scientific (Bremen) GmbH Hanna-Kunath-Strasse 11 28199 Bremen Germany Proposed to be Used IR DIVISION Kits comprised of enzymes, reagents, nucleotides, and assays for scientific or research purposes. 6449 Trade Marks Journal No: 1960 , 10/08/2020 Class 1 4534058 24/03/2020 [International Registration No. : 1468883] Evonik Operations GmbH Rellinghauser Str. 1 - 11 45128 Essen Germany Proposed to be Used IR DIVISION Cl.1;Chemical substances, chemical materials and chemical preparations, and natural elements, included in this class, for use in industry; detergents for use in manufacture and industry; filtering media of chemical and non-chemical substances included in this class. 6450 Trade Marks Journal No: 1960 , 10/08/2020 Class 1 Priority claimed from 30/10/2019; Application No. : 2019-138709 ;Japan 4535241 31/03/2020 [International Registration No. : 1535335] Sanyo Chemical Industries, Ltd. 11-1, Ikkyo Nomoto-cho, Higashiyama-ku, Kyoto-shi Kyoto 605-0995 Japan Proposed to be Used IR DIVISION Industrial chemicals; surface-active chemical agents; chemical additives for fuel; chemical additives for lubricating oils; chemical additives improving the viscosity index of lubricating oil; plasticizers; chemical preparations for metal finishing; antibacterial agents for industrial use; resin -
December 2019 BRAS Newsletter
A Monthly Meeting December 11th at 7PM at HRPO (Monthly meetings are on 2nd Mondays, Highland Road Park Observatory). Annual Christmas Potluck, and election of officers. What's In This Issue? President’s Message Secretary's Summary Outreach Report Asteroid and Comet News Light Pollution Committee Report Globe at Night Member’s Corner – The Green Odyssey Messages from the HRPO Friday Night Lecture Series Science Academy Solar Viewing Stem Expansion Transit of Murcury Edge of Night Natural Sky Conference Observing Notes: Perseus – Rescuer Of Andromeda, or the Hero & Mythology Like this newsletter? See PAST ISSUES online back to 2009 Visit us on Facebook – Baton Rouge Astronomical Society Baton Rouge Astronomical Society Newsletter, Night Visions Page 2 of 25 December 2019 President’s Message I would like to thank everyone for having me as your president for the last two years . I hope you have enjoyed the past two year as much as I did. We had our first Members Only Observing Night (MOON) at HRPO on Sunday, 29 November,. New officers nominated for next year: Scott Cadwallader for President, Coy Wagoner for Vice- President, Thomas Halligan for Secretary, and Trey Anding for Treasurer. Of course, the nominations are still open. If you wish to be an officer or know of a fellow member who would make a good officer contact John Nagle, Merrill Hess, or Craig Brenden. We will hold our annual Baton Rouge “Gastronomical” Society Christmas holiday feast potluck and officer elections on Monday, December 9th at 7PM at HRPO. I look forward to seeing you all there. ALCon 2022 Bid Preparation and Planning Committee: We’ll meet again on December 14 at 3:00.pm at Coffee Call, 3132 College Dr F, Baton Rouge, LA 70808, UPCOMING BRAS MEETINGS: Light Pollution Committee - HRPO, Wednesday December 4th, 6:15 P.M. -
7.5 X 11.5.Threelines.P65
Cambridge University Press 978-0-521-19267-5 - Observing and Cataloguing Nebulae and Star Clusters: From Herschel to Dreyer’s New General Catalogue Wolfgang Steinicke Index More information Name index The dates of birth and death, if available, for all 545 people (astronomers, telescope makers etc.) listed here are given. The data are mainly taken from the standard work Biographischer Index der Astronomie (Dick, Brüggenthies 2005). Some information has been added by the author (this especially concerns living twentieth-century astronomers). Members of the families of Dreyer, Lord Rosse and other astronomers (as mentioned in the text) are not listed. For obituaries see the references; compare also the compilations presented by Newcomb–Engelmann (Kempf 1911), Mädler (1873), Bode (1813) and Rudolf Wolf (1890). Markings: bold = portrait; underline = short biography. Abbe, Cleveland (1838–1916), 222–23, As-Sufi, Abd-al-Rahman (903–986), 164, 183, 229, 256, 271, 295, 338–42, 466 15–16, 167, 441–42, 446, 449–50, 455, 344, 346, 348, 360, 364, 367, 369, 393, Abell, George Ogden (1927–1983), 47, 475, 516 395, 395, 396–404, 406, 410, 415, 248 Austin, Edward P. (1843–1906), 6, 82, 423–24, 436, 441, 446, 448, 450, 455, Abbott, Francis Preserved (1799–1883), 335, 337, 446, 450 458–59, 461–63, 470, 477, 481, 483, 517–19 Auwers, Georg Friedrich Julius Arthur v. 505–11, 513–14, 517, 520, 526, 533, Abney, William (1843–1920), 360 (1838–1915), 7, 10, 12, 14–15, 26–27, 540–42, 548–61 Adams, John Couch (1819–1892), 122, 47, 50–51, 61, 65, 68–69, 88, 92–93, -
Cycle 9 Approved Programs
Cycle 9 Approved Programs TYPE OF SCIENCE FIRST NAME LAST NAME INSTITUTION COUNTRY TITLE PROPOSAL CATEGORY A Morphological and Multicolor HST Survey for Ultrafaint Quasars, Sampling A Scott Anderson AR University of Washington United States AGN Broad Redshift Range Antonio Aparicio GO Instituto de Astrofi sica de Canarias Spain GAL Phoenix: "halo/disk" structures in dwarf galaxies John Bahcall GO Institute for Advanced Study United States HS Observing the next nearby supernova Ultraviolet Spectroscopy of Hot Horizontal-Branch Stars in the Globular Cluster Bradford Behr GO California Institute of Technology United States HS M13 David Bennett GO University of Notre Dame United States SP Confirmation of Black Hole, Planetary, and Binary Microlensing Events Klaus P. Beuermann GO Universitaets-Sternwarte Goettingen Germany HS FGS parallaxes of magnetic CVs Luciana Bianchi GO The Johns Hopkins University United States SP The Massive Star Content of NGC 6822 Torsten Boeker SNAP Space Telescope Science Institute United States GAL A Census of Nuclear Star Clusters in Late-Type Spiral Galaxies Ann Boesgaard GO Institute for Astronomy, University of Hawaii United States CS The Nucleosynthesis of Boron - Benchmarks for the Galactic Disk Howard Bond GO Space Telescope Science Institute United States CS WFPC2 Observations of Astrophysically Important Visual Binaries Howard Bond GO Space Telescope Science Institute United States HS Sakurai's Novalike Object: Real-Time Monitoring of a Stellar Thermal Pulse Amanda Bosh AR Lowell Observatory United States -
Binocular Challenges
This page intentionally left blank Cosmic Challenge Listing more than 500 sky targets, both near and far, in 187 challenges, this observing guide will test novice astronomers and advanced veterans alike. Its unique mix of Solar System and deep-sky targets will have observers hunting for the Apollo lunar landing sites, searching for satellites orbiting the outermost planets, and exploring hundreds of star clusters, nebulae, distant galaxies, and quasars. Each target object is accompanied by a rating indicating how difficult the object is to find, an in-depth visual description, an illustration showing how the object realistically looks, and a detailed finder chart to help you find each challenge quickly and effectively. The guide introduces objects often overlooked in other observing guides and features targets visible in a variety of conditions, from the inner city to the dark countryside. Challenges are provided for viewing by the naked eye, through binoculars, to the largest backyard telescopes. Philip S. Harrington is the author of eight previous books for the amateur astronomer, including Touring the Universe through Binoculars, Star Ware, and Star Watch. He is also a contributing editor for Astronomy magazine, where he has authored the magazine’s monthly “Binocular Universe” column and “Phil Harrington’s Challenge Objects,” a quarterly online column on Astronomy.com. He is an Adjunct Professor at Dowling College and Suffolk County Community College, New York, where he teaches courses in stellar and planetary astronomy. Cosmic Challenge The Ultimate Observing List for Amateurs PHILIP S. HARRINGTON CAMBRIDGE UNIVERSITY PRESS Cambridge, New York, Melbourne, Madrid, Cape Town, Singapore, Sao˜ Paulo, Delhi, Dubai, Tokyo, Mexico City Cambridge University Press The Edinburgh Building, Cambridge CB2 8RU, UK Published in the United States of America by Cambridge University Press, New York www.cambridge.org Information on this title: www.cambridge.org/9780521899369 C P. -
Walter Scott Houston: MÉLY-ÉG CSODÁK 1975-1980 Sky And
Albireo Amat ırcsillagász Klub Walter Scott Houston: MÉLY-ÉG CSODÁK 1975-1980 Sky and Telescope Fordította: Szentmártoni Béla 1975. január Nemrég jártam újra Tucsonban, Arizónában, ahol 40 évvel ezel ıtt a csillagokat és ködöket fényesebbnek láttam, mint bármely más helyen. A Steward Observatory udvarában állva, szabadszemmel egykor 18 csillagot számoltam meg a Pleiades-ben, de ezen az éjjelen 1974- ben semmivel sem többet mint 5-öt. Az ok az volt, hogy épp miel ıtt besötétedett az ég, s őrő szmog felh ık ülepedtek rá a rézkohók fel ıl arra a természetes medencére, melyben Tucson elhelyezkedik. Telefonáltam Ronald Morale-nak, a következ ı éjszaka mi, valamint John Bartek és Daniel Knight mérföldekre kimentünk a sötét sivatagba, az Empire hegyekbe. 3 db 20 cm-es és egy 15 cm-es reflektort vittünk, s a tiszta égen a diffrakciós határig dolgoztak a m őszerek. Kezd ı objektumunk a 9 ½ mg NGC 891 volt, s átengedtük magunkat a gyönyörködésnek. A 20T-vel e 12 x 1’-es élér ıl látszó galaxis csaknem a fél LM-t átérte. Fényes volt és éles szélekkel bírt. De a nagy meglepetés EL-al jött el ıször, majd KL-al is, amint egy sötét ösvény látszott az orsó hosszán végig, s ez az ösvény határozott kagylókkal bírt a szélei mentén. Bár fényképek jól mutatják az NGC 891 porösvényét, ez volt az els ı alkalom, hogy láttam távcs ıvel. Az volt a célunk, hogy olyan objektumokat vizsgáljunk, melyek speciális észlelési problémákkal bírnak. A legtöbb kis távcs ıben az M 1 jobbára csak mint homályos 6x4’-es folt látszik, a 8 ½ mg összfényessége dacára. -
January 2021
the vol. 48 no. 01 Skyscraper January 2021 AMATEUR ASTRONOMICAL SOCIETY OF RHODE ISLAND 47 PEEPTOAD ROAD NORTH SCITUATE, RHODE ISLAND 02857 WWW.THESKYSCRAPERS.ORG In This Issue: A Behind the Scenes Look at 2 President’s Message Hubble Space Telescope Operations 3 Astronomical Highlights for 2021 4 Geminids report for 12/13/2020 An Online Presentation by Mike Wenz 6 Clock Face Curiosity: Saturday, January 2, 7:00pm EST via Zoom The Numeral IIII 7 Check Your Sky’s Contact Steve Hubbard ([email protected]) for Quality with Orion! Zoom Meeting link and information. 8 Cluster and Reflection Many people have seen the wonderful performed by the Space Shuttle. Mike is Nebula in Perseus: IC 348 pictures that the Hubble Space Telescope intimately involved with the day to day op- 10 Star Party Update & has produced over the 29 years of it's oper- erations of the telescope and is the one re- Observing Reports ation so far. However, few people have seen sponsible to investigate any pointing prob- what is truly involved in the day to day op- lems or issues that come up on a daily basis. 11 From the Archives eration of a telescope that has been called a Mike has used the information provided 12 The Sun, Moon & National Treasure. This talk will take a look by the Fine Guidance Sensors to serendip- Planets in January behind the scenes and explain how the tele- itously discover hundreds of new double scope is operated and what it takes to make stars and was involved in a study using the 13 Astrophoto Gallery the science observations that lead to all of Fine Guidance Sensors that led to the dis- 16 Starry Scoop the discoveries Hubble has been involved covery of the smallest Kuiper Belt object in. -
Making a Sky Atlas
Appendix A Making a Sky Atlas Although a number of very advanced sky atlases are now available in print, none is likely to be ideal for any given task. Published atlases will probably have too few or too many guide stars, too few or too many deep-sky objects plotted in them, wrong- size charts, etc. I found that with MegaStar I could design and make, specifically for my survey, a “just right” personalized atlas. My atlas consists of 108 charts, each about twenty square degrees in size, with guide stars down to magnitude 8.9. I used only the northernmost 78 charts, since I observed the sky only down to –35°. On the charts I plotted only the objects I wanted to observe. In addition I made enlargements of small, overcrowded areas (“quad charts”) as well as separate large-scale charts for the Virgo Galaxy Cluster, the latter with guide stars down to magnitude 11.4. I put the charts in plastic sheet protectors in a three-ring binder, taking them out and plac- ing them on my telescope mount’s clipboard as needed. To find an object I would use the 35 mm finder (except in the Virgo Cluster, where I used the 60 mm as the finder) to point the ensemble of telescopes at the indicated spot among the guide stars. If the object was not seen in the 35 mm, as it usually was not, I would then look in the larger telescopes. If the object was not immediately visible even in the primary telescope – a not uncommon occur- rence due to inexact initial pointing – I would then scan around for it.