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XMM–Newton Observations of NGC 3268 in the Antlia Galaxy Cluster: Characterization of a Hidden Group of Galaxies at Z ≈ 0.41
MNRAS 00, 1 (2018) doi:10.1093/mnras/sty1401 Advance Access publication 2018 May 28 XMM–Newton observations of NGC 3268 in the Antlia Galaxy Cluster: characterization of a hidden group of galaxies at z ≈ 0.41 I. D. Gargiulo,1,4‹ F. Garc´ıa,2,3,4,5 J. A. Combi,2,3,4 J. P. Caso1,2,4 and L. P. Bassino1,2,4 1Instituto de Astrof´ısica de La Plata (CCT La Plata, CONICET, UNLP), Paseo del Bosque s/n, B1900FWA La Plata, Argentina 2Facultad de Ciencias Astronomicas´ y Geof´ısicas, Universidad Nacional de La Plata, Paseo del Bosque, B1900FWA La Plata, Argentina 3Instituto Argentino de Radioastronom´ıa (CCT-La Plata, CONICET; CICPBA), C.C. No. 5, 1894 Villa Elisa, Argentina 4Consejo Nacional de Investigaciones Cient´ıficas y Tecnicas,´ Rivadavia 1917, Ciudad Autonoma´ de Buenos Aires, C1033AAJ Buenos Aires, Argentina 5Laboratoire AIM (UMR 7158 CEA/DRF-CNRS-Universite´ Paris Diderot), Irfu/Departament´ d’Astrophysique, Centre de Saclay, F-91191 Gif-sur-Yvette, France Accepted 2018 May 25. Received 2018 May 25; in original form 2016 December 1 ABSTRACT We report on a detailed X-ray study of the extended emission of the intracluster medium (ICM) around NGC 3268 in the Antlia Cluster of galaxies, together with a characterization of an extended source in the field, namely a background cluster of galaxies at z ≈ 0.41, which was previously accounted as an X-ray point source. The spectral properties of the extended emission of the gas present in Antlia were studied using data from the XMM–Newton satellite, complemented with optical images of Cerro Tololo Inter-American Observatory (CTIO) Blanco telescope, to attain for associations of the optical sources with the X-ray emission. -
Where Are the Distant Worlds? Star Maps
W here Are the Distant Worlds? Star Maps Abo ut the Activity Whe re are the distant worlds in the night sky? Use a star map to find constellations and to identify stars with extrasolar planets. (Northern Hemisphere only, naked eye) Topics Covered • How to find Constellations • Where we have found planets around other stars Participants Adults, teens, families with children 8 years and up If a school/youth group, 10 years and older 1 to 4 participants per map Materials Needed Location and Timing • Current month's Star Map for the Use this activity at a star party on a public (included) dark, clear night. Timing depends only • At least one set Planetary on how long you want to observe. Postcards with Key (included) • A small (red) flashlight • (Optional) Print list of Visible Stars with Planets (included) Included in This Packet Page Detailed Activity Description 2 Helpful Hints 4 Background Information 5 Planetary Postcards 7 Key Planetary Postcards 9 Star Maps 20 Visible Stars With Planets 33 © 2008 Astronomical Society of the Pacific www.astrosociety.org Copies for educational purposes are permitted. Additional astronomy activities can be found here: http://nightsky.jpl.nasa.gov Detailed Activity Description Leader’s Role Participants’ Roles (Anticipated) Introduction: To Ask: Who has heard that scientists have found planets around stars other than our own Sun? How many of these stars might you think have been found? Anyone ever see a star that has planets around it? (our own Sun, some may know of other stars) We can’t see the planets around other stars, but we can see the star. -
Newpointe-Catalog
NewPointe® Constellation Collections More value from Batesville Constellation Collections 18 Gauge Steel Caskets Leo Collection Leo Brushed Black Silver velvet interior Leo Brushed Black shown with Praying Hands decorative kit. 257178 - half couch Choose from 11 designs. 262411 - full couch See page 15 for your options. • Includes decorative kit option for lid Leo Painted Silver Silver velvet interior 257172 - half couch 262415 - full couch • Includes decorative kit option for lid Leo Brushed Ruby Leo Brushed Blue Leo Painted Sand Leo Painted White Moss Pink velvet interior Light Blue velvet interior Champagne velvet interior Moss Pink velvet interior 257177 - half couch 257179 - half couch 257173 - half couch 257166 - half couch 262410 - full couch 262412 - full couch 262416 - full couch 262414 - full couch • Includes decorative kit option • Includes decorative kit option • Includes decorative kit option • Includes decorative kit option for lid for lid for lid for lid 2 All caskets not available in all locations. Please check to ensure availability in your area. 18 Gauge Steel Caskets Virgo Collection Virgo White/Pink Moss Pink crepe interior| $845 250673 - half couch Virgo White/Pink shown with Roses 254258 - full couch decorative kit and corner decals. Choose from 11 designs. • Includes decorative kit option See page 15 for your options. for lid and corner decals Virgo Blue Light Blue crepe interior 250658 - half couch 254255 - full couch • Includes decorative kit option for lid and corner decals Virgo Silver Virgo White Virgo Copper -
Dorado & Bedout Sub-Basin Update
Dorado & Bedout Sub-basin update 1 December 2020 Carnarvon Petroleum Limited (“Carnarvon” or “the Company”) is pleased to advise that its partner in the Dorado field development and Bedout sub-basin exploration permits has today provided the ASX with an update on the project. The material is available on the Santos website as part of their Investor Day presentation. The Dorado field is an important development in the Australia energy landscape with exciting upside potential in the surrounding exploration acreage that Carnarvon holds an interest in. At Carnarvon’s recent Annual General Meeting the Company made a number of key points on this project which have been reiterated by its partner today. These highlights include: • The Bedout sub-basin is a highly prospective, liquids rich region with very large volume potential; • A substantial amount of work is being undertaken in advancing the Dorado field development; • The initial Dorado liquids development is expected to deliver low cost production from late 2025; • A phased and disciplined development is planned to ensure optimised FPSO and infrastructure design is capable of realising the value potential from the discovered Dorado resource and importantly a number of nearby exploration targets; and • The material Pavo and Apus prospects, which are capable of being tied back to Dorado, are being advanced for drilling to commence in late 2021. Carnarvon holds interests in four exploration permits covering a substantial portion of the Bedout sub-basin. These interests include 20% in WA-435-P -
NGC 1333 Plunkett Et
Outflows in protostellar clusters: a multi-wavelength, multi-scale view Adele L. Plunkett1, H. G. Arce1, S. A. Corder2, M. M. Dunham1, D. Mardones3 1-Yale University; 2-ALMA; 3-Universidad de Chile Interferometer and Single Dish Overview Combination FCRAO-only v=-2 to 6 km/s FCRAO-only v=10 to 17 km/s K km s While protostellar outflows are generally understood as necessary components of isolated star formation, further observations are -1 needed to constrain parameters of outflows particularly within protostellar clusters. In protostellar clusters where most stars form, outflows impact the cluster environment by injecting momentum and energy into the cloud, dispersing the surrounding gas and feeding turbulent motions. Here we present several studies of very dense, active regions within low- to intermediate-mass Why: protostellar clusters. Our observations include interferometer (i.e. CARMA) and single dish (e.g. FCRAO, IRAM 30m, APEX) To recover flux over a range of spatial scales in the region observations, probing scales over several orders of magnitude. How: Based on these observations, we calculate the masses and kinematics of outflows in these regions, and provide constraints for Jy beam km s Joint deconvolution method (Stanimirovic 2002), CARMA-only v=-2 to 6 km/s CARMA-only v=10 to 17 km/s models of clustered star formation. These results are presented for NGC 1333 by Plunkett et al. (2013, ApJ accepted), and -1 comparisons among star-forming regions at different evolutionary stages are forthcoming. using the analysis package MIRIAD. -1 1212COCO Example: We mapped NGC 1333 using CARMA with a resolution of ~5’’ (or 0.006 pc, 1000 AU) in order to Our study focuses on Class 0 & I outflow-driving protostars found in clusters, and we seek to detect outflows and associate them with their driving sources. -
Instruction Manual
1 Contents 1. Constellation Watch Cosmo Sign.................................................. 4 2. Constellation Display of Entire Sky at 35° North Latitude ........ 5 3. Features ........................................................................................... 6 4. Setting the Time and Constellation Dial....................................... 8 5. Concerning the Constellation Dial Display ................................ 11 6. Abbreviations of Constellations and their Full Spellings.......... 12 7. Nebulae and Star Clusters on the Constellation Dial in Light Green.... 15 8. Diagram of the Constellation Dial............................................... 16 9. Precautions .................................................................................... 18 10. Specifications................................................................................. 24 3 1. Constellation Watch Cosmo Sign 2. Constellation Display of Entire Sky at 35° The Constellation Watch Cosmo Sign is a precisely designed analog quartz watch that North Latitude displays not only the current time but also the correct positions of the constellations as Right ascension scale Ecliptic Celestial equator they move across the celestial sphere. The Cosmo Sign Constellation Watch gives the Date scale -18° horizontal D azimuth and altitude of the major fixed stars, nebulae and star clusters, displays local i c r e o Constellation dial setting c n t s ( sidereal time, stellar spectral type, pole star hour angle, the hours for astronomical i o N t e n o l l r f -
H I Deficiency in Groups : What Can We Learn from Eridanus ?
Bull. Astr. Soc. India (2004) 32, 239{245 H i de¯ciency in groups : what can we learn from Eridanus ? A. Omar¤y Raman Research Institute, Sadashivanagar, Bangalore 560 080, India Received 14 July 2004; accepted 24 August 2004 Abstract. The H i content of the Eridanus group of galaxies is studied using the GMRT observations and the HIPASS data. A signi¯cant H i de¯ciency up to a factor of 2 ¡ 3 is observed in galaxies in the Eridanus group. The de¯ciency is found to be directly correlated with the projected galaxy density and inversely correlated with the line-of-sight radial velocity. It is suggested that the H i de¯ciency is due to tidal interactions. An important implication is that signi¯cant evolution of galaxies can take place in a group environment. Keywords : galaxies: ISM { galaxies: interactions { galaxies: kinematics and dynamics { galaxies: evolution { galaxies: clusters: individual: Eridanus group { radio lines: galaxies 1. Introduction Spiral galaxies in the cores of clusters are known to be H i de¯cient compared to their ¯eld counterparts (Davies and Lewis 1973, Giovanelli and Haynes 1985, Cayatte et al. 1990, Bravo-Alfaro et al. 2000). Several gas-removal mechanisms have been proposed to explain the H i de¯ciency in cluster galaxies. There are convincing results from both the simulations and the observations that ram-pressure stripping can be active in galaxies which have crossed the high ICM (Intra Cluster Medium) density region in the cores of clusters (Vollmer et al. 2001, van Gorkom 2003). However, it is not clear that all H i de¯cient galaxies have crossed the core. -
Naming the Extrasolar Planets
Naming the extrasolar planets W. Lyra Max Planck Institute for Astronomy, K¨onigstuhl 17, 69177, Heidelberg, Germany [email protected] Abstract and OGLE-TR-182 b, which does not help educators convey the message that these planets are quite similar to Jupiter. Extrasolar planets are not named and are referred to only In stark contrast, the sentence“planet Apollo is a gas giant by their assigned scientific designation. The reason given like Jupiter” is heavily - yet invisibly - coated with Coper- by the IAU to not name the planets is that it is consid- nicanism. ered impractical as planets are expected to be common. I One reason given by the IAU for not considering naming advance some reasons as to why this logic is flawed, and sug- the extrasolar planets is that it is a task deemed impractical. gest names for the 403 extrasolar planet candidates known One source is quoted as having said “if planets are found to as of Oct 2009. The names follow a scheme of association occur very frequently in the Universe, a system of individual with the constellation that the host star pertains to, and names for planets might well rapidly be found equally im- therefore are mostly drawn from Roman-Greek mythology. practicable as it is for stars, as planet discoveries progress.” Other mythologies may also be used given that a suitable 1. This leads to a second argument. It is indeed impractical association is established. to name all stars. But some stars are named nonetheless. In fact, all other classes of astronomical bodies are named. -
The Midnight Sky: Familiar Notes on the Stars and Planets, Edward Durkin, July 15, 1869 a Good Way to Start – Find North
The expression "dog days" refers to the period from July 3 through Aug. 11 when our brightest night star, SIRIUS (aka the dog star), rises in conjunction* with the sun. Conjunction, in astronomy, is defined as the apparent meeting or passing of two celestial bodies. TAAS Fabulous Fifty A program for those new to astronomy Friday Evening, July 20, 2018, 8:00 pm All TAAS and other new and not so new astronomers are welcome. What is the TAAS Fabulous 50 Program? It is a set of 4 meetings spread across a calendar year in which a beginner to astronomy learns to locate 50 of the most prominent night sky objects visible to the naked eye. These include stars, constellations, asterisms, and Messier objects. Methodology 1. Meeting dates for each season in year 2018 Winter Jan 19 Spring Apr 20 Summer Jul 20 Fall Oct 19 2. Locate the brightest and easiest to observe stars and associated constellations 3. Add new prominent constellations for each season Tonight’s Schedule 8:00 pm – We meet inside for a slide presentation overview of the Summer sky. 8:40 pm – View night sky outside The Midnight Sky: Familiar Notes on the Stars and Planets, Edward Durkin, July 15, 1869 A Good Way to Start – Find North Polaris North Star Polaris is about the 50th brightest star. It appears isolated making it easy to identify. Circumpolar Stars Polaris Horizon Line Albuquerque -- 35° N Circumpolar Stars Capella the Goat Star AS THE WORLD TURNS The Circle of Perpetual Apparition for Albuquerque Deneb 1 URSA MINOR 2 3 2 URSA MAJOR & Vega BIG DIPPER 1 3 Draco 4 Camelopardalis 6 4 Deneb 5 CASSIOPEIA 5 6 Cepheus Capella the Goat Star 2 3 1 Draco Ursa Minor Ursa Major 6 Camelopardalis 4 Cassiopeia 5 Cepheus Clock and Calendar A single map of the stars can show the places of the stars at different hours and months of the year in consequence of the earth’s two primary movements: Daily Clock The rotation of the earth on it's own axis amounts to 360 degrees in 24 hours, or 15 degrees per hour (360/24). -
The Lore of the Stars, for Amateur Campfire Sages
obscure. Various claims have been made about Babylonian innovations and the similarity between the Greek zodiac and the stories, dating from the third millennium BCE, of Gilgamesh, a legendary Sumerian hero who encountered animals and characters similar to those of the zodiac. Some of the Babylonian constellations may have been popularized in the Greek world through the conquest of The Lore of the Stars, Alexander in the fourth century BCE. Alexander himself sent captured Babylonian texts back For Amateur Campfire Sages to Greece for his tutor Aristotle to interpret. Even earlier than this, Babylonian astronomy by Anders Hove would have been familiar to the Persians, who July 2002 occupied Greece several centuries before Alexander’s day. Although we may properly credit the Greeks with completing the Babylonian work, it is clear that the Babylonians did develop some of the symbols and constellations later adopted by the Greeks for their zodiac. Contrary to the story of the star-counter in Le Petit Prince, there aren’t unnumerable stars Cuneiform tablets using symbols similar to in the night sky, at least so far as we can see those used later for constellations may have with our own eyes. Only about a thousand are some relationship to astronomy, or they may visible. Almost all have names or Greek letter not. Far more tantalizing are the various designations as part of constellations that any- cuneiform tablets outlining astronomical one can learn to recognize. observations used by the Babylonians for Modern astronomers have divided the sky tracking the moon and developing a calendar. into 88 constellations, many of them fictitious— One of these is the MUL.APIN, which describes that is, they cover sky area, but contain no vis- the stars along the paths of the moon and ible stars. -
The Constellation Microscopium, the Microscope Microscopium Is A
The Constellation Microscopium, the Microscope Microscopium is a small constellation in the southern sky, defined in the 18th century by Nicolas Louis de Lacaille in 1751–52 . Its name is Latin for microscope; it was invented by Lacaille to commemorate the compound microscope, i.e. one that uses more than one lens. The first microscope was invented by the two brothers, Hans and Zacharius Jensen, Dutch spectacle makers of Holland in 1590, who were also involved in the invention of the telescope (see below). Lacaille first showed it on his map of 1756 under the name le Microscope but Latinized this to Microscopium on the second edition published in 1763. He described it as consisting of "a tube above a square box". It contains sixty-nine stars, varying in magnitude from 4.8 to 7, the lucida being Gamma Microscopii of apparent magnitude 4.68. Two star systems have been found to have planets, while another has a debris disk. The stars that now comprise Microscopium may formerly have belonged to the hind feet of Sagittarius. However, this is uncertain as, while its stars seem to be referred to by Al-Sufi as having been seen by Ptolemy, Al-Sufi does not specify their exact positions. Microscopium is bordered Capricornus to the north, Piscis Austrinus and Grus to the west, Sagittarius to the east, Indus to the south, and touching on Telescopium to the southeast. The recommended three-letter abbreviation for the constellation, as adopted Seen in the 1824 star chart set Urania's Mirror (lower left) by the International Astronomical Union in 1922, is 'Mic'. -
Scutum Apus Aquarius Aquila Ara Bootes Canes Venatici Capricornus Centaurus Cepheus Circinus Coma Berenices Corona Austrina Coro
Polaris Ursa Minor Cepheus Camelopardus Thuban Draco Cassiopeia Mizar Ursa Major Lacerta Lynx Deneb Capella Perseus Auriga Canes Venatici Algol Cygnus Vega Cor Caroli Andromeda Lyra Bootes Leo Minor Castor Triangulum Corona Borealis Albireo Hercules Pollux Alphecca Gemini Vulpecula Coma Berenices Pleiades Aries Pegasus Sagitta Arcturus Taurus Cancer Aldebaran Denebola Leo Delphinus Serpens [Caput] Regulus Equuleus Altair Canis Minor Pisces Betelgeuse Aquila Procyon Orion Serpens [Cauda] Ophiuchus Virgo Sextans Monoceros Mira Scutum Rigel Aquarius Spica Cetus Libra Crater Capricornus Hydra Sirius Corvus Lepus Deneb Kaitos Canis Major Eridanus Antares Fomalhaut Piscis Austrinus Sagittarius Scorpius Antlia Pyxis Fornax Sculptor Microscopium Columba Caelum Corona Austrina Lupus Puppis Grus Centaurus Vela Norma Horologium Phoenix Telescopium Ara Canopus Indus Crux Pictor Achernar Hadar Carina Dorado Tucana Circinus Rigel Kentaurus Reticulum Pavo Triangulum Australe Musca Volans Hydrus Mensa Apus SampleOctans file Chamaeleon AND THE LONELY WAR Sample file STAR POWER VOLUME FOUR: STAR POWER and the LONELY WAR Copyright © 2018 Michael Terracciano and Garth Graham. All rights reserved. Star Power, the Star Power logo, and all characters, likenesses, and situations herein are trademarks of Michael Terracciano and Garth Graham. Except for review purposes, no portion of this publication may be reproduced or transmitted, in any form or by any means, without the express written consent of the copyright holders. All characters and events in this publication are fictional and any resemblance to real people or events is purely coincidental. Star chartsSample adapted from charts found at hoshifuru.jp file Portions of this book are published online at www.starpowercomic.com. This volume collects STAR POWER and the LONELY WAR Issues #16-20 published online between Oct 2016 and Oct 2017.