DOCSLIB.ORG

Acknowledgements

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Acknowledgements TVO ILC SNC1D Acknowledgements Acknowledgements – Unit 1 Learning activity 1 Blog Definition, Oxford University Press, URL: https://en.oxforddictionaries.com/definition/ blog, Accessed 20/03/2018. Logo: ScienceBlogs, URL: http://scienceblogs.com/, Accessed 20/03/2018, © 2006-2018 ScienceBlogs LLC. ScienceBlogs is a registered trademark of ScienceBlogs LLC. Logo: The Daily Galaxy, URL: http://www.dailygalaxy.com/, Accessed 20/03/2018. Logo: How Stuff Works, URL: https://science.howstuffworks.com/, Accessed 20/03/2018, © 2018 HowStuffWorks, a division of InfoSpace Holdings LLC, a System1 Company. Logo: IOP - Institute of Physics, URL: http://www.iopblog.org/, Accessed 20/03/2018, © Institute of Physics. Blog, blogging and blogglers theme, djvstock/iStock/Getty Images Logo: Wordpress, WordPress.com, Automattic Inc., URL: https://wordpress.com/, Accessed 20/03/2018, © The WordPress Foundation. Logo: Tumblr, Tumblr, Inc., URL: https://www.tumblr.com/, Accessed 20/03/2018, © Tumblr, Inc., a Delaware corporation and wholly-owned subsidiary of Oath Inc., a Delaware corporation. Logo: Blogger, Blogger, Inc., ZyMOS, URL: https://commons.wikimedia.org/wiki/File:Blogger. svg, Accessed 20/03/2018, © Google LLC. HOME - A film by Yann Arthus-Bertrand, Europacorp and Elzévir Films, URL: https://www. youtube.com/watch?v=HAE24kOPAVU&feature=youtu.be, Published 04/02/2009, Accessed 20/04/2018, Courtesy of the GoodPlanet Foundation. Mining dump trucks, aerial photo, dan_prat/iStock/Getty Images Land clearing, lanolan/iStock/Getty Images Hurricane George damage erosion western Haiti highway near border, Robert_Ford/iStock/ Getty Images Dead fish floated in the water, vinhdav/iStock/Getty Images Richards Bay Coal Terminal, Bloomberg//Getty Images Coral bleaching, FishTales/iStock/Getty Images Spray pesticides rice in the morning, ShamClickAddict/iStock/Getty Images Bee flying to the beautiful flower, panom/iStock/Getty Images Fishermen arranging containers with fish, pixinoo/iStock/Getty Images Severe drought drains Colorado River Basin, Justin Sullivan/Getty Images News/Getty Copyright © 2018 The Ontario Educational Communications Authority. All rights reserved. 1 TVO ILC SNC1D Acknowledgements Images Water well system The image depicts an underground aquifer 3d render on white, NosUA/ iStock/Getty Images Noble Blogger Guidelines: How to Cite Pictures, Sasha Zinevych, Writtent.com, URL: https:// writtent.com/blog/the-honor-code-of-a-noble-blogger-how-to-cite-pictures/, Published 09/03/2017, Accessed 20/08/2018. Give Photo Credit Where Credit Is Due, Tracy Thomason, 15 Minute Mondays, URL: http:// www.15minutemondays.com/2014/03/10/give-photo-credit-credit-due/, Published 10/03/2014, Accessed 20/08/2018. A Guide to Creative Commons Images for Blogs, Evan LePage, LinkedIn, URL: https:// www.linkedin.com/pulse/guide-creative-commons-images-blogs-evan-lepage, Published 23/04/2015, Accessed 20/08/2018, LinkedIn Corporation © 2018. How To Attribute Creative Commons Photos, Foter Blog, URL: https://foter.com/blog/how-to- attribute-creative-commons-photos/, Published 04/03/2015, Accessed 20/08/2018. Learning activity 2 Concentrate_and_focus, denphumi/iStock/Getty Images Layers of earth diagram, ttsz/iStock/Getty Images Northern leopard frog (Lithobates pipiens), MGJdeWit/iStock/Getty Images Northern River and Boreal Forest in Prince Albert National Park, Dougall_Photography/ iStock/Getty Images Coral Reef, mihtiander/iStock/Getty Images View of the savannah in Maasai Mara Park, Kenya, philou1000/iStock/Getty Images Arabian desert in Egypt, vovashevchuk/iStock/Getty Images Tundra from above, Artem Sidorov/iStock/Getty Images Yellow-collared lovebird flying, GlobalP/iStock/Getty Images Mature oak tree, DNY59/iStock/Getty Images Arizona desert, landscape view, WilliamJu/iStock/Getty Images Sea of pink and red lotus, supershabashnyi/iStock/Getty Images Fresh harvested soybean, edamame, chengyuzheng/iStock/Getty Images Young wolf staring at its prey, LazyFocus/iStock/Getty Images Two porcini mushrooms, hsvrs/iStock/Getty Images Athabasca River in Jasper National Park, Alberta, wwing/iStock/Getty Images Athabasca River just below the Athabasca Falls in Jasper National Park, Alberta, Brandi Copyright © 2018 The Ontario Educational Communications Authority. All rights reserved. 2 TVO ILC SNC1D Acknowledgements Newton, URL: http://www.thecanadianencyclopedia.ca/en/article/athabasca-river/, Published 2016, Accessed 20/04/2018. Aerial view of a rainforest in Brazil, filipefrazao/iStock/Getty Images Merging melting water and clear water river, Greenland, DanBachKristensen/iStock/Getty Images Bee, nathanlovegrove/iStock/Getty Images American elm tree, RHWB Studios/iStock/Getty Images Detailed vector map of Canada © iStock.com/Diane Labombarbe. Waterfall with colorful autumn woods above it © iStock.com/studio-laska. Storm Head Smashed In Buffalo Jump © iStock.com/keeperofthezoo. Concept of eco-tourism and active tourism © iStock.com/kavram. Walking trail tundra © iStock.com/Rahul-Aggarwal. Valley of yellow and green coniferous trees © iStock.com/Sublimage. Looking out from the Signal Hill Trail, across St. John’s Harbour at the Narrows, Stephen Barnes/iStock/Getty Images Greater Yellowlegs, impr2003/iStock/Getty Images “Coral reef locations, NASA, URL: https://commons.wikimedia.org/wiki/File:Coral_reef_ locations.jpg, Published 05/01/2006, Accessed 21/03/2018, Original source: https://www. nasa.gov/vision/earth/lookingatearth/coralreef_image.html.” Humpback whale jumping and splashing ocean water, marcelozippo/iStock/Getty Images Giant tube worms, National Oceanic & Atmospheric Administration (NOAA), URL: https:// www.theatlantic.com/science/archive/2017/11/life-without-guts/545801/, Published 13/11/2017, Accessed 21/03/2018. Canadian geese in the first snow along Lake Ontario, Iris van Loon/iStock/Getty Images Swimming beaver, SylvieBouchard/iStock/Getty Images Moose in Lake Ontario, Canada, photo-synthesis/iStock/Getty Images Child snorkeling in Great Barrier Reef, Queensland, Australia, chameleonseye/iStock/Getty Images Swimming beaver, SylvieBouchard/iStock/Getty Images Polar bear admiring his mirror image in the sea, Mario_Hoppmann/iStock/Getty Images Baby wood frog, JasonOndreicka/iStock/Getty Images Humpback whale jumping and splashing ocean water, marcelozippo/iStock/Getty Images Copyright © 2018 The Ontario Educational Communications Authority. All rights reserved. 3 TVO ILC SNC1D Acknowledgements Moose resting in grass, Tempau/iStock/Getty Images Learning activity 3 Wetland, Michael Warren/iStock/Getty Images Wood Warbler in Inversnaid, Loch Lomond, Scotland, Steve Garvie, URL: https:// en.wikipedia.org/wiki/Wood_warbler, Published 26/05/2010, Accessed 21/03/2018. Platydemus manokwari. Head is on the right. Locality: Ogasawara Islands, Japan, Shinji Sugiura, URL: https://en.wikipedia.org/wiki/Platydemus_manokwari#/media/ File:Platydemus_manokwari.jpg, Published 17/11/2009, Accessed 21/03/2018. Mallard, shown looking like a duck and swimming like a duck, Kitkatcrazy, URL: https:// en.wikipedia.org/wiki/Duck_test, Published 21/05/2008, Accessed 21/03/2018. Lithobates pipiens, Brian Gratwicke, URL: https://simple.wikipedia.org/wiki/Frog#/media/ File:Lithobates_pipiens.jpg, Published 03/07/2011, Accessed 21/03/2018. Cattails (Typha at the edge of a small wetland), Derek Jensen, URL: https://commons. wikimedia.org/wiki/File:Typha-cattails-in-indiana.jpg, Published 20/08/2005, Accessed 21/03/2018. Atom molecule - DNA, seyfettinozel/iStock/Getty Images Butterhead lettuce or green head salad, a_lis/iStock/Getty Images Cricket in front of white background, GlobalP/iStock/Getty Images Common water frog, GlobalP/iStock/Getty Images Royal python eating a mouse, GlobalP/iStock/Getty Images Hawk, Antagain/iStock/Getty Images Earth worms for composter or fishing, stockcam/iStock/Getty Images View over a rainforest, El Yunque, Puerto Rico, OGphoto/iStock/Getty Images Flock of scarlet macaws in the wild, OGphoto/iStock/Getty Images Snowy winter landscape where tundra and boreal forest ecosystems meet. Churchill, Manitoba, Cheryl Ramalho/iStock/Getty Images Arctic hare in sunset, VisualCommunications/iStock/Getty Images Two acorns, dionisvero/iStock/Getty Images Chipmunk in forest, legna69/iStock/Getty Images Red fox (Vulpes vulpes), RT-Images/iStock/Getty Images Learning activity 4 Young wolf staring at its prey, LazyFocus/iStock/Getty Images Copyright © 2018 The Ontario Educational Communications Authority. All rights reserved. 4 TVO ILC SNC1D Acknowledgements Eurasian red squirrel on a white background, GlobalP/iStock/Getty Images Ball python, amwu/iStock/Getty Images Two porcini mushrooms, hsvrs/iStock/Getty Images House sparrow against white background, GlobalP/iStock/Getty Images Cockroach, arlindo71/iStock/Getty Images Common water frog, GlobalP/iStock/Getty Images Willow oak tree, DNY59/iStock/Getty Images Milipede myriapod, empire331/iStock/Getty Images Earth worms for composter or fishing, stockcam/iStock/Getty Images Grass, Nevit Dilmen, URL: https://commons.wikimedia.org/wiki/File:Grass_dsc08672-nevit. jpg, Published 2006, Accessed 21/03/2018. Harris hawk, GlobalP/iStock/Getty Images Ball python, amwu/iStock/Getty Images Common water frog, GlobalP/iStock/Getty Images Grasshopper isolated on a white background, chengyuzheng/iStock/Getty Images Green grass background, SunnyGraph/iStock/Getty Images Grass, Nevit Dilmen, URL: https://commons.wikimedia.org/wiki/File:Grass_dsc08672-nevit. jpg, Published 2006, Accessed 21/03/2018. Wolf hunting in mountain, Byrdyak/iStock/Getty
Load more

Recommended publications
  • Portrait of a Dramatic Stellar Crib 21 December 2006
    Portrait of a dramatic stellar crib 21 December 2006 most massive stars known. The nebula owes its name to the arrangement of its brightest patches of nebulosity, that somewhat resemble the legs of a spider. They extend from a central 'body' where a cluster of hot stars (designated 'R136') illuminates and shapes the nebula. This name, of the biggest spiders on the Earth, is also very fitting in view of the gigantic proportions of the celestial nebula - it measures nearly 1,000 light-years across and extends over more than one third of a degree: almost, but not quite, the size of the full Moon. If it were in our own Galaxy, at the distance of another stellar nursery, the Orion Nebula (1,500 light-years away), it would cover one quarter of the sky and even be visible in daylight. One square degree image of the Tarantula Nebula and its surroundings. The spidery nebula is seen in the upper- center of the image. Slightly to the lower-right, a web of filaments harbors the famous supernova SN 1987A (see below). Many other reddish nebulae are visible in the image, as well as a cluster of young stars on the left, known as NGC 2100. Credit: ESO Known as the Tarantula Nebula for its spidery appearance, the 30 Doradus complex is a monstrous stellar factory. It is the largest emission nebula in the sky, and can be seen far down in the southern sky at a distance of about 170,000 light- years, in the southern constellation Dorado (The Swordfish or the Goldfish).
    [Show full text]
  • Expected Differences Between AGB Stars in the LMC and the SMC Due to Differences in Chemical Composition
    New Views of the Magellanic Clouds fA U Symposium, Vol. 190, 1999 Y.-H. Chu, N.B. Suntzef], J.E. Hesser, and D.A. Bohlender, eds. Expected Differences between AGB Stars in the LMC and the SMC Due to Differences in Chemical Composition Ju. Frantsman Astronomical Institute, Latvian University, Raina Blvd. 19, Riga, LV-1586, LATVIA Abstract. Certain aspects of the AGB population, such as the relative number of M and N stars, the mass loss rates, and the initial masses of carbon- oxygen cores, depend on the initial heavy element abundance Z. I have calculated synthetic populations of AGB stars for different initial Z values taking into consideration the evolution of single and close binary stars. I present the results of population syntheses of AGB stars in clusters as a function of different initial chemical compositions. The relation for the tip luminosity of AGB stars versus cluster age as a function of Z is presented and is used to determine the ages for a number of clusters in the LMC and the SMC, including clusters with no previous age determinations. Population simulations show that for low heavy element abundance (Z = 0.001) few M stars are formed with respect to the number of carbon stars. However, the total number of all AGB stars in clusters is not affected by the initial chemical composition. As a result of the evolution of close binary components after the mass exchange, an increase in the range of limiting values of the thermal pulsing AGB star luminosities is expected. The difference between the maximum luminosity on the AGB of single star and the luminosity of a star after a mass exchange event in a close binary system may be as great as 1 magnitude for very young clusters.
    [Show full text]
  • Remerciements – Unité 1
    TVO ILC SNC1D Remerciements Remerciements – Unité 1 Graphs, diagrams, illustrations, images in this course, unless otherwise specified, are ILC created, Copyright © 2018 The Ontario Educational Communications Authority. All rights reserved. Intro Video, Copyright © 2018 The Ontario Educational Communications Authority. All rights reserved. All title artwork and graphics, unless otherwise specified, Copyright © 2018The Ontario Educational Communications Authority. All rights reserved. Logo: Science Presse , Agence Science-Presse, URL: https://www.sciencepresse.qc.ca/, Accessed 14/01/2019. Logo: Curium, Curium, URL: https://curiummag.com/wp-content/uploads/2017/10/logo_ curium-web.png, Accessed 14/01/2019. Logo: Science Étonnante, David Louapre, URL: https://sciencetonnante.wordpress.com/, Accessed 20/03/2018, © 2018 HowStuffWorks, a division of InfoSpace Holdings LLC, a System1 Company. Blog, blogging and blogglers theme, djvstock/iStock/Getty Images Logo: Wordpress, WordPress.com, Automattic Inc., URL: https://wordpress.com/, Accessed 20/03/2018, © The WordPress Foundation. Logo: Wix, Wix.com, Inc., URL: https://static.wixstatic.com/ media/9ab0d1_39d56f21398048df8af89aab0cec67b8~mv1.png, Accessed 14/01/2019. Logo: Blogger, Blogger, Inc., ZyMOS, URL: https://commons.wikimedia.org/wiki/File:Blogger. svg, Accessed 20/03/2018, © Google LLC. HOME A film by Yann Arthus-Bertrand, GoodPlanet Foundation, Europacorp and Elzévir Films, URL: https://www.youtube.com/watch?v=GItD10Joaa0, Published 04/02/2009, Accessed 20/04/2018, Courtesy of the GoodPlanet
    [Show full text]
  • Annual Report 1972
    I I ANNUAL REPORT 1972 EUROPEAN SOUTHERN OBSERVATORY ANNUAL REPORT 1972 presented to the Council by the Director-General, Prof. Dr. A. Blaauw, in accordance with article VI, 1 (a) of the ESO Convention Organisation Europeenne pour des Recherches Astronomiques dans 1'Hkmisphtre Austral EUROPEAN SOUTHERN OBSERVATORY Frontispiece: The European Southern Observatory on La Silla mountain. In the foreground the "old camp" of small wooden cabins dating from the first period of settlement on La Silln and now gradually being replaced by more comfortable lodgings. The large dome in the centre contains the Schmidt Telescope. In the background, from left to right, the domes of the Double Astrograph, the Photo- metric (I m) Telescope, the Spectroscopic (1.>2 m) Telescope, and the 50 cm ESO and Copen- hagen Telescopes. In the far rear at right a glimpse of the Hostel and of some of the dormitories. Between the Schmidt Telescope Building and the Double Astrograph the provisional mechanical workshop building. (Viewed from the south east, from a hill between thc existing telescope park and the site for the 3.6 m Telescope.) TABLE OF CONTENTS INTRODUCTION General Developments and Special Events ........................... 5 RESEARCH ACTIVITIES Visiting Astronomers ........................................ 9 Statistics of Telescope Use .................................... 9 Research by Visiting Astronomers .............................. 14 Research by ESO Staff ...................................... 31 Joint Research with Universidad de Chile ......................
    [Show full text]
  • The Resolved Stellar Population in 50 Regions of M83 from Hst/Wfc3 Early Release Science Observations
    The Astrophysical Journal, 753:26 (22pp), 2012 July 1 doi:10.1088/0004-637X/753/1/26 C 2012. The American Astronomical Society. All rights reserved. Printed in the U.S.A. THE RESOLVED STELLAR POPULATION IN 50 REGIONS OF M83 FROM HST/WFC3 EARLY RELEASE SCIENCE OBSERVATIONS Hwihyun Kim1, Bradley C. Whitmore2, Rupali Chandar3, Abhijit Saha4, Catherine C. Kaleida5, Max Mutchler2, Seth H. Cohen1, Daniela Calzetti6, Robert W. O’Connell7, Rogier A. Windhorst1, Bruce Balick8, Howard E. Bond2, Marcella Carollo9, Michael J. Disney10, Michael A. Dopita11,12, Jay A. Frogel13,14, Donald N. B. Hall12, Jon A. Holtzman15, Randy A. Kimble16, Patrick J. McCarthy17, Francesco Paresce18, Joe I. Silk19, John T. Trauger20, Alistair R. Walker5, and Erick T. Young21 1 School of Earth and Space Exploration, Arizona State University, Tempe, AZ 85287-1404, USA; [email protected] 2 Space Telescope Science Institute, Baltimore, MD 21218, USA 3 Department of Physics & Astronomy, University of Toledo, Toledo, OH 43606, USA 4 National Optical Astronomy Observatories, Tucson, AZ 85726-6732, USA 5 Cerro Tololo Inter-American Observatory, La Serena, Chile 6 Department of Astronomy, University of Massachusetts, Amherst, MA 01003, USA 7 Department of Astronomy, University of Virginia, Charlottesville, VA 22904-4325, USA 8 Department of Astronomy, University of Washington, Seattle, WA 98195-1580, USA 9 Department of Physics, ETH-Zurich, Zurich 8093, Switzerland 10 School of Physics and Astronomy, Cardiff University, Cardiff CF24 3AA, UK 11 Mount Stromlo and Siding Spring Observatories, Research School of Astronomy & Astrophysics, Australian National University, Cotter Road, Weston Creek, ACT 2611, Australia 12 Institute for Astronomy, University of Hawaii, 2680 Woodlawn Drive, Honolulu, HI 96822, USA 13 Galaxies Unlimited, 1 Tremblant Court, Lutherville, MD 21093, USA 14 Astronomy Department, King Abdulaziz University, P.O.
    [Show full text]
  • Atlas Menor Was Objects to Slowly Change Over Time
    C h a r t Atlas Charts s O b by j Objects e c t Constellation s Objects by Number 64 Objects by Type 71 Objects by Name 76 Messier Objects 78 Caldwell Objects 81 Orion & Stars by Name 84 Lepus, circa , Brightest Stars 86 1720 , Closest Stars 87 Mythology 88 Bimonthly Sky Charts 92 Meteor Showers 105 Sun, Moon and Planets 106 Observing Considerations 113 Expanded Glossary 115 Th e 88 Constellations, plus 126 Chart Reference BACK PAGE Introduction he night sky was charted by western civilization a few thou - N 1,370 deep sky objects and 360 double stars (two stars—one sands years ago to bring order to the random splatter of stars, often orbits the other) plotted with observing information for T and in the hopes, as a piece of the puzzle, to help “understand” every object. the forces of nature. The stars and their constellations were imbued with N Inclusion of many “famous” celestial objects, even though the beliefs of those times, which have become mythology. they are beyond the reach of a 6 to 8-inch diameter telescope. The oldest known celestial atlas is in the book, Almagest , by N Expanded glossary to define and/or explain terms and Claudius Ptolemy, a Greco-Egyptian with Roman citizenship who lived concepts. in Alexandria from 90 to 160 AD. The Almagest is the earliest surviving astronomical treatise—a 600-page tome. The star charts are in tabular N Black stars on a white background, a preferred format for star form, by constellation, and the locations of the stars are described by charts.
    [Show full text]
  • 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,
    [Show full text]
  • An Artist's Revelation in a Walking Canvas 3 Tale of Ansel Adams
    An Artist’s Revelation in a Walking Canvas 3 Tale of Ansel Adams Negatives Grows Hazy 5 Galaxies of Wire, Canvas and Velvety Soot 8 Single Neurons Can Detect Sequences 10 Antibiotics for the Prevention of Malaria 12 Shared Phosphoproteome Links Remote Plant Species 14 Asteroid Found in Gravitational 'Dead Zone' Near Neptune 15 Scientists Test Australia's Moreton Bay as Coral 'Lifeboat' 17 Hexagonal Boron Nitride Sheets May Help Graphene Supplant Silicon 20 Geologists Reconstruct Earth's Climate Belts Between 460 and 445 Million Years Ago 22 Neurological Process for the Recognition of Letters and Numbers Explained 24 Certain Vena Cava Filters May Fracture, Causing Life-Threatening Complications 26 Citizen Scientists Discover Rotating Pulsar 28 Scientists Outline a 20-Year Master Plan for the Global Renaissance of Nuclear Energy 30 Biochar Can Offset 1.8 Billion Metric Tons of Carbon Emissions Annually 33 Research Reveals Similarities Between Fish and Humans 36 Switchgrass Lessens Soil Nitrate Loss Into Waterways, Researchers Find 38 Free Statins With Fast Food Could Neutralize Heart Risk, Scientists Say 40 Ambitious Survey Spots Stellar Nurseries 42 For Infant Sleep, Receptiveness More Important Than Routine 44 Arctic Rocks Offer New Glimpse of Primitive Earth 46 Learn More in Kindergarten, Earn More as an Adult 48 Giant Ultraviolet Rings Found in Resurrected Galaxies 50 Faster DNA Analysis at Room Temperature 53 Biodiversity Hot Spots More Vulnerable to Global Warming Than Thought 55 Women Feel More Pain Than Men 57 Are We Underestimating
    [Show full text]
  • 2Df-Aaomega Spectroscopy of Massive Stars in the Magellanic Clouds the North-Eastern Region of the Large Magellanic Cloud?,??
    A&A 584, A5 (2015) Astronomy DOI: 10.1051/0004-6361/201525882 & c ESO 2015 Astrophysics 2dF-AAOmega spectroscopy of massive stars in the Magellanic Clouds The north-eastern region of the Large Magellanic Cloud?;?? C. J. Evans1, J. Th. van Loon2, R. Hainich3, and M. Bailey4;2 1 UK Astronomy Technology Centre, Royal Observatory, Blackford Hill, Edinburgh, EH9 3HJ, UK e-mail: [email protected] 2 Astrophysics Group, School of Physical and Geographical Sciences, Lennard-Jones Laboratories, Keele University, ST5 5BG, UK 3 Institute for Physics and Astronomy, University of Potsdam, 14476 Potsdam, Germany 4 Astrophysics Research Institute, Liverpool John Moores University, Liverpool Science Park ic2, 146 Brownlow Hill, Liverpool L3 5RF, UK Received 13 February 2015 / Accepted 5 August 2015 ABSTRACT We present spectral classifications from optical spectroscopy of 263 massive stars in the north-eastern region of the Large Magellanic Cloud. The observed two-degree field includes the massive 30 Doradus star-forming region, the environs of SN1987A, and a number of star-forming complexes to the south of 30 Dor. These are the first classifications for the majority (203) of the stars and include eleven double-lined spectroscopic binaries. The sample also includes the first examples of early OC-type spectra (AAΩ 30 Dor 248 and 280), distinguished by the weakness of their nitrogen spectra and by C IV λ4658 emission. We propose that these stars have relatively unprocessed CNO abundances compared to morphologically normal O-type stars, indicative of an earlier evolutionary phase. From analysis of observations obtained on two consecutive nights, we present radial-velocity estimates for 233 stars, finding one apparent single-lined binary and nine (>3σ) outliers compared to the systemic velocity; the latter objects could be runaway stars or large-amplitude binary systems and further spectroscopy is required to investigate their nature.
    [Show full text]
  • Ngc Catalogue Ngc Catalogue
    NGC CATALOGUE NGC CATALOGUE 1 NGC CATALOGUE Object # Common Name Type Constellation Magnitude RA Dec NGC 1 - Galaxy Pegasus 12.9 00:07:16 27:42:32 NGC 2 - Galaxy Pegasus 14.2 00:07:17 27:40:43 NGC 3 - Galaxy Pisces 13.3 00:07:17 08:18:05 NGC 4 - Galaxy Pisces 15.8 00:07:24 08:22:26 NGC 5 - Galaxy Andromeda 13.3 00:07:49 35:21:46 NGC 6 NGC 20 Galaxy Andromeda 13.1 00:09:33 33:18:32 NGC 7 - Galaxy Sculptor 13.9 00:08:21 -29:54:59 NGC 8 - Double Star Pegasus - 00:08:45 23:50:19 NGC 9 - Galaxy Pegasus 13.5 00:08:54 23:49:04 NGC 10 - Galaxy Sculptor 12.5 00:08:34 -33:51:28 NGC 11 - Galaxy Andromeda 13.7 00:08:42 37:26:53 NGC 12 - Galaxy Pisces 13.1 00:08:45 04:36:44 NGC 13 - Galaxy Andromeda 13.2 00:08:48 33:25:59 NGC 14 - Galaxy Pegasus 12.1 00:08:46 15:48:57 NGC 15 - Galaxy Pegasus 13.8 00:09:02 21:37:30 NGC 16 - Galaxy Pegasus 12.0 00:09:04 27:43:48 NGC 17 NGC 34 Galaxy Cetus 14.4 00:11:07 -12:06:28 NGC 18 - Double Star Pegasus - 00:09:23 27:43:56 NGC 19 - Galaxy Andromeda 13.3 00:10:41 32:58:58 NGC 20 See NGC 6 Galaxy Andromeda 13.1 00:09:33 33:18:32 NGC 21 NGC 29 Galaxy Andromeda 12.7 00:10:47 33:21:07 NGC 22 - Galaxy Pegasus 13.6 00:09:48 27:49:58 NGC 23 - Galaxy Pegasus 12.0 00:09:53 25:55:26 NGC 24 - Galaxy Sculptor 11.6 00:09:56 -24:57:52 NGC 25 - Galaxy Phoenix 13.0 00:09:59 -57:01:13 NGC 26 - Galaxy Pegasus 12.9 00:10:26 25:49:56 NGC 27 - Galaxy Andromeda 13.5 00:10:33 28:59:49 NGC 28 - Galaxy Phoenix 13.8 00:10:25 -56:59:20 NGC 29 See NGC 21 Galaxy Andromeda 12.7 00:10:47 33:21:07 NGC 30 - Double Star Pegasus - 00:10:51 21:58:39
    [Show full text]
  • A Digital Photometric Survey of the Magellanic Clouds: First Results
    A Digital Photometric Survey of the Magellanic Clouds: First Results From One Million Stars1 Dennis Zaritsky2, Jason Harris2, and Ian Thompson3 2 UCO/Lick Observatory and Board of Astronomy and Astrophysics, Univ. of California at Santa Cruz, Santa Cruz, CA 95064. Email: [email protected], [email protected] 3 Carnegie Observatories, 813 Santa Barbara St., Pasadena CA 91101, Email: [email protected] 1 Lick Bulletin No. 1363 ABSTRACT We present the first results from, and a complete description of, our ongoing UBVI digital photometric survey of the Magellanic Clouds. In particular, we discuss the photometric quality and automated reduction of a CCD survey (magnitude limits, completeness, and astrometric accuracy) that covers the central 8◦ × 8◦ of the Large Magellanic Cloud (LMC) and 4◦ × 4◦ of the Small Magellanic Cloud (SMC). We discuss photometry of over 1 million stars from the initial survey observations (an area northwest of the LMC bar covering ∼ 2◦ × 1.5◦) and present a deep stellar cluster arXiv:astro-ph/9706206v1 19 Jun 1997 catalog that contains about 45% more clusters than previously identified within this region. Of the 68 clusters found, only 12 are also identified as concentrations of “old”, red clump stars. Furthermore, only three clusters are identified solely on the basis of a concentration of red clump stars, rather than as a concentration of luminous (V < 21) main sequence stars. Extrapolating from the current data, we expect to obtain B and V photometry for 25 million stars, and U and I photometry for 10 and 20 million stars, respectively, over the entire survey area.
    [Show full text]
  • X-Rays Tracing the Star Formation History of the Magellanic Clouds
    X-rays Tracing the Star Formation History of the Magellanic Clouds Dissertation der Fakult¨at fur¨ Physik der Ludwig-Maximilians-Universit¨at Munc¨ hen zur Erlangung des Grades Doktor der Naturwissenschaften Dr. rer. nat. vorgelegt von Manami Sasaki aus Tokio, Japan Munc¨ hen, den 21. Dezember 2001 1. Gutachter: Prof. Dr. Joachim Trump¨ er 2. Gutachter: Prof. Dr. Ralf Bender Tag der mundlic¨ hen Prufung:¨ 14. Mai 2002 Zusammenfassung R¨ontgenstrahlung als Spuren der Sternentstehungsgeschichte in den Magellanschen Wolken Manami Sasaki Galaxien setzen sich aus Sternen und der den interstellaren Raum auffullenden¨ Ma- terie zusammen. Am Ende der Sternentwicklung entstehen Weiße Zwerge, Neutro- nensterne, Schwarze L¨ocher sowie Supernova-Ub¨ erreste, die aufgrund hoher Temper- aturen R¨ontgenstrahlung emittieren. Deshalb liefern astronomische Beobachtungen im R¨ontgenbereich wichtige Erkenntnisse fur¨ das Verst¨andnis des Aufbaus und der Entwicklungsgeschichte von Galaxien. Die Große Magellansche Wolke (Large Magellanic Cloud, LMC) und die Kleine Magellansche Wolke (Small Magellanic Cloud, SMC), jeweils ca. 160.000 und 190.000 Lichtjahre von unserem Sonnensystem entfernt, befinden sich in unmittelbarer Umge- bung unserer Milchstraße und sind somit die am besten geeigneten Objekte fur¨ die Un- tersuchung von Galaxien in ihrer Ganzheit. W¨ahrend der Betriebsphase des R¨ontgen- satelliten ROSAT in den Jahren von 1990 bis 1998 sind etwa 900 Beobachtungen von der LMC und der SMC durchgefuhrt¨ worden, die das Bild der Magellanschen Wolken (MCs) im R¨ontgenlicht enthullten.¨ Erstes Hauptziel dieser Doktorarbeit bestand darin, die erste umfassende Studie der R¨ontgenquellen in den MCs anhand von Archiv-Daten vom ROSAT "High Resolu- tion Imager" (HRI) durchzufuhren.¨ Die Ergebnisse erm¨oglichen in Kombination mit den Quell-Katalogen von Haberl & Pietsch (1999a) und Haberl et al.
    [Show full text]