Aeronautics and Space Report of the President: Fiscal Year 2011 Activities
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Upholding the Unified Model for Active Galactic Nuclei: VLT/FORS2 Spectropolarimetry of Seyfert 2 Galaxies
MNRAS 461, 1387–1403 (2016) doi:10.1093/mnras/stw1388 Advance Access publication 2016 June 9 Upholding the unified model for active galactic nuclei: VLT/FORS2 spectropolarimetry of Seyfert 2 galaxies C. Ramos Almeida,1,2‹† M. J. Mart´ınez Gonzalez,´ 1,2 A. Asensio Ramos,1,2 J. A. Acosta-Pulido,1,2 S. F. Honig,¨ 3 A. Alonso-Herrero,4,5 C. N. Tadhunter6 and O. Gonzalez-Mart´ ´ın7 1Instituto de Astrof´ısica de Canarias, Calle V´ıa Lactea,´ s/n, E-38205 La Laguna, Tenerife, Spain 2Departamento de Astrof´ısica, Universidad de La Laguna, E-38205 La Laguna, Tenerife, Spain 3School of Physics and Astronomy, University of Southampton, Southampton SO17 1BJ, UK 4Centro de Astrobiolog´ıa (CAB, CSIC-INTA), ESAC Campus, E-28692 Villanueva de la Canada,˜ Madrid, Spain 5Department of Physics and Astronomy, University of Texas at San Antonio, One UTSA Circle, San Antonio, TX 78249, USA 6Department of Physics and Astronomy, University of Sheffield, Sheffield S3 7RH, UK 7Instituto de Radioastronom´ıa y Astrof´ısica (IRAF-UNAM), 3-72 (Xangari), 8701 Morelia, Mexico Accepted 2016 June 7. Received 2016 June 7; in original form 2015 September 2 ABSTRACT The origin of the unification model for active galactic nuclei (AGN) was the detection of broad hydrogen recombination lines in the optical polarized spectrum of the Seyfert 2 galaxy (Sy2) NGC 1068. Since then, a search for the hidden broad-line region (HBLR) of nearby Sy2s started, but polarized broad lines have only been detected in ∼30–40 per cent of the nearby Sy2s observed to date. -
ATV Preparing for Fiery Destruction 20 June 2011
ATV preparing for fiery destruction 20 June 2011 ATV Johannes Kepler delivered about seven tonnes of much-needed supplies to the Space Station, including 1170 kg of dry cargo, 100 kg of oxygen, 851 kg of propellants to replenish the Station tanks and 4535 kg of fuel for the ferry itself to boost the outpost's altitude and make other adjustments. ATV-2 manoeuvred the complex on 2 April to avoid a collision with space debris. During the hectic mission of Johannes Kepler, two Space Shuttles and Japan's HTV cargo carrier ATV Jules Verne: mission accomplished! This video visited the Station, along with two Progress and capture shows ATV-1 after undocking on 5 September 2008. Credits: ESA TV Soyuz spacecraft. These required several changes of Station attitude, mostly controlled by ATV's thrusters. ATV Johannes Kepler has been an important part Big boosts and preparations for dive of the International Space Station since February. Next week, it will complete its mission by ATV's last important task was to give the Station's undocking and burning up harmlessly in the orbit a big boost. One important sequence was atmosphere high over an uninhabited area of the performed 12 June, another on 15 June and the Pacific Ocean. last one this afternoon, 17 June. Serving the International Space Station is a The combined effect of these manoeuvres was to valuable job but it will come to a spectacular end: raise the Station's orbit to around 380 km. ESA's second Automated Transfer Vehicle, packed with Station rubbish, will deliberately plummet to its destruction on Tuesday in Earth's atmosphere. -
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. -
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 -
Download PDF of Abstracts
15th HEAD Naples, FL – April, 2016 Meeting Program Session Table of Contents 100 – AGN I Analysis Poster Session 206 – Early Results from the Astro-H 101 – Galaxy Clusters 116 – Missions & Instruments Poster Mission 102 – Dissertation Prize Talk: Accretion Session 207 – Stellar Compact II driven outflows across the black hole mass 117 – Solar and Stellar Poster Session 300 – The Physics of Accretion Disks – A scale, Ashley King (KIPAC/Stanford 118 – Supernovae and Supernova Joint HEAD/LAD Session University) Remnants Poster Session 301 – Gravitational Waves 103 – Time Domain Astronomy 119 – WDs & CVs Poster Session 302 – Missions & Instruments 104 – Feedback from Accreting Binaries in 120 – XRBs and Population Surveys Poster 303 – Mid-Career Prize Talk: In the Ring Cosmological Scales Session with Circinus X-1: A Three-Round Struggle 105 – Stellar Compact I 200 – Solar Wind Charge Exchange: to Reveal its Secrets, Sebastian Heinz 106 – AGNs Poster Session Measurements and Models (Univ. of Wisconsin) 107 – Astroparticles, Cosmic Rays, and 201 – TeraGauss, Gigatons, and 304 – Science of X-ray Polarimetry in the Neutrinos Poster Session MegaKelvin: Theory and Observations of 21st Century 108 – Cosmic Backgrounds and Deep Accretion Column Physics 305 – Making the Multimessenger – EM Surveys Poster Session 202 – The Structure of the Inner Accretion Connection 109 – Galactic Black Holes Poster Session Flow of Stellar-Mass and Supermassive 306 – SNR/GRB/Gravitational Waves 110 – Galaxies and ISM Poster Session Black Holes 400 – AGN II 111 – Galaxy -
New H2O Masers in Seyfert and FIR Bright Galaxies IV
A&A 525, A91 (2011) Astronomy DOI: 10.1051/0004-6361/201014714 & c ESO 2010 Astrophysics New H2O masers in Seyfert and FIR bright galaxies IV. Interferometric follow-ups A. Tarchi1,P.Castangia1,C.Henkel2,G.Surcis3,, and K. M. Menten2 1 INAF-Osservatorio Astronomico di Cagliari, Loc. Poggio dei Pini, Strada 54, 09012 Capoterra (CA), Italy e-mail: [email protected] 2 Max-Planck-Insitut für Radioastronomie, Auf dem Hügel 69, 53121 Bonn, Germany 3 Argelander-Institut für Astronomie der Universität Bonn, Auf dem Hügel 71, 53121 Bonn, Germany Received 1 April 2010 / Accepted 23 August 2010 ABSTRACT Context. Very luminous extragalactic water masers, the megamasers, are associated with active galactic nuclei (AGN) in galaxies characterized by accretion disks, radio jets, and nuclear outflows. Weaker masers, the kilomasers, seem to be related mostly to star formation activity, although the possibility exists that some of these sources may belong to the weak tail of the AGN maser distribution. Aims. It is particularly important to accurately locate the water maser emission to reveal its origin and shed light on extragalactic star- forming activity or to elucidate the highly obscured central regions of galaxies. Methods. We performed interferometric observations of three galaxies, NGC 3556, Arp 299, and NGC 4151, where water emission was found. Statistical tools were used to study the relation between OH and H2O maser emission in galaxies. Results. The maser in NGC 3556 is associated with a compact radio continuum source that is most likely a supernova remnant or radio supernova. In Arp 299, the luminous water maser has been decomposed in three main emitting regions associated with the nuclear regions of the two main galaxies of the system, NGC 3690 and IC 694, and the region of overlap. -
October 2012 Orbiter
Archive View – Month : Orbiter Article Archive for October 1st to October 31st. Generated on November 1, 2012, 8:48 pm Macs Go Big Posted Oct. 25, 2012 · Article In this video, Holleh Neyestanki discusses how the corporation will be supporting employees who use Macintosh. Graves Finds Failure Cause in RF Components Posted Oct. 24, 2012 · Feature Dr. Timothy Graves, laboratory manager, Space Materials Laboratory, Engineering and Technology Group, received a 2012 President’s Achievement Award for “for pivotal contributions in identifying and mitigating RF breakdown failure modes within communication systems on multiple national security space programs.” Graves identified root-cause failure mechanisms within RF components critical to customer missions — discovering and characterizing new modes of electrical discharges called multipaction that were responsible for overheating and failure of RF system components. Using Aerospace-developed facilities and expertise, Graves Eric Hamburg performed unique tests and implemented new diagnostics to Dr. Timothy Graves received a President's Achievement Award for his work in replicate and understand observed anomalies. Through an uncovering the cause of RF system failures. extensive research and hardware test program in the Aerospace Multipaction Test Facility developed by him, Graves provided new scientific insights into contamination effects and other contributing factors for previously unexplained events. Using physics-based tests and Aerospace data, he was able to quantify and recommend safe operational power limits that contributed to component redesigns and alterations in operations. As the principal U.S. expert in multipaction phenomenology within Aerospace and the technical community, Graves assumed an exemplary leadership role in exposing substantial risk to customer satellites. -
President's Message
Journal of the Northern Sydney Astronomical Society Inc. Volume 22 Number 2 July 2011 President’s Message In this issue he year for NSAS is already halfway to be interesting in the future. The next Page 1: President’s message Tthrough, and it’s been eventful so program will be in August. Page 2: Calendar/Communications far. Some of you who do not attend ISS and Endeavour meetings may have missed the 2nd edition The guest speaker program this year Page 3: A Quadruple Conjunction of Reflections this year, as it was not has continued to run strongly and, at the Page 4: Parkes Field Trip published for the simple reason that moment, NSAS has guest speakers from Page 5: Lindfield School Event there were so few contributions from the the professional astrophysics community Page 6: Paul’s Corner membership that it would have not been booked for the rest of the year, with a Page 7: Supermassive Black Hole worthwhile. I’d like to remind everyone number of candidates selected for 2012. Page 8: Book Review in the Society that Reflections is a journal Our speakers so far have come from Editorial for the members, but also of the members. CSIRO, Macquarie, Sydney, and NSW the Central West Astronomical Society There’s no point in rehashing information Universities and they have talked to us on (see the more detailed article inside). Our that is available in the newspapers or the a wide range of subjects that form their intentions are to run another field trip, Web in Reflections, as these are available areas of expertise. -
The Dichotomy of Seyfert 2 Galaxies: Intrinsic Differences and Evolution
A&A 570, A72 (2014) Astronomy DOI: 10.1051/0004-6361/201424622 & c ESO 2014 Astrophysics The dichotomy of Seyfert 2 galaxies: intrinsic differences and evolution E. Koulouridis Institute for Astronomy and Astrophysics, Space Applications and Remote Sensing, National Observatory of Athens, 15236 Palaia Penteli Athens, Greece e-mail: [email protected] Received 17 July 2014 / Accepted 20 August 2014 ABSTRACT We present a study of the local environment (≤200 h−1 kpc) of 31 hidden broad line region (HBLR) and 43 non-HBLR Seyfert 2 (Sy2) galaxies in the nearby universe (z ≤ 0.04). To compare our findings, we constructed two control samples that match the redshift and the morphological type distribution of the HBLR and non-HBLR samples. We used the NASA Extragalactic Database (NED) to find all neighboring galaxies within a projected radius of 200 h−1 kpc around each galaxy, and a radial velocity difference δu ≤ 500 km s−1. Using the digitized Schmidt survey plates (DSS) and/or the Sloan Digital Sky Survey (SDSS), when available, we confirmed that our sample of Seyfert companions is complete. We find that, within a projected radius of at least 150 h−1 kpc around each Seyfert, the fraction of non-HBLR Sy2 galaxies with a close companion is significantly higher than that of their control sample, at the 96% confidence level. Interestingly, the difference is due to the high frequency of mergers in the non-HBLR sample, seven versus only one in the control sample, while they also present a high number of hosts with signs of peculiar morphology. -
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¼¼ÇwªÂÐw¦¹Á¼ºËw£ÀÊËw II - C ll r l 400 e e l G C k i 200 r he Dec. P.A. w R.A. Size Size Chart N a he ss d l Object Type Con. Mag. Class t NGC Description l AS o o sc e s r ( h m ) max min No. C a ( ' ) ( ) sc R AAS e r e M C T e B H H x x NGC 3511 GALXY CRT 11 03.4 -23 05 11 6 m 2.1 m 76 SBc vF,vL,mE 98 x x NGC 3513 GALXY CRT 11 03.8 -23 15 11.5 2.9 m 2.4 m 75 SBb vF,vL,mE 98 IC 2627 GALXY CRT 11 09.9 -23 44 12 2.6 m 2.1 m SBbc eF,L,R,stell N 98 NGC 3573 GALXY CEN 11 11.3 -36 53 12.3 3.6 m 1 m 4 Sa eF,S,R,glbM,3 st 11 f 98 NGC 3571 GALXY CRT 11 11.5 -18 17 12.1 3 m 0.9 m 94 SBa pF,pL,iF,bM 98 B,pL,E,vsmbMN,2 B st x NGC 3585 GALXY HYA 11 13.3 -26 45 9.9 5.2 m 3.1 m 107 Elliptical 98 tri NGC 3606 GALXY HYA 11 16.3 -33 50 12.4 1.5 m 1.4 m Elliptical eF,S,R,gbM 98 x x x NGC 3621 GALXY HYA 11 18.3 -32 49 9.7 12.4 m 5.7 m 159 SBcd cB,vL,E 160,am 4 st 98 NGC 3673 GALXY HYA 11 25.2 -26 44 11.5 3.7 m 2.4 m 70 SBb F,vL,gvlbM,*7 s 6' 98 PK 283+25.1 PLNNB HYA 11 26.7 -34 22 12.1 188 s 174 s 98 x NGC 3693 GALXY CRT 11 28.2 -13 12 13 3.4 m 0.7 m 85 Sb cF,S,E,gbM 98 NGC 3706 GALXY CEN 11 29.7 -36 24 11.3 3.1 m 1.8 m 78 E-SO pB,cS,R,psmbM 98 NGC 3717 GALXY HYA 11 31.5 -30 19 11.2 6.2 m 1 m 33 Sb pB,S,mE,*13 att 98 «ÆÊ¿ÀÄÀww«¸ÂÀ ¼¼ÇwªÂÐw¦¹Á¼ºËw£ÀÊËw II - C ll r l 400 e e l G C k i 200 r he Dec. -
University of Maryland Department of Astronomy College Park, Maryland 20742 ͓S0002-7537͑99͒06701-3͔ This Report Covers Astronomical Activities Primarily Within 2
194 University of Maryland Department of Astronomy College Park, Maryland 20742 @S0002-7537~99!06701-3# This report covers astronomical activities primarily within 2. MEETINGS Maryland’s Department of Astronomy but also includes The series of Washington Area Astronomers meetings ini- some astronomical work carried out in other departments, tiated in September 1981 has continued. The Fall 1998 meet- such as the Department of Physics. The period covered is ing was held at the Johns Hopkins Applied Physics Labora- from 1 October 1997 to 30 September 1998. tory in Laurel, Maryland. Typical attendance has been 100 persons per meeting. The Maryland-Goddard Astrophysics series which started in Fall 1990 has continued. The most recent meeting ‘‘After the Dark Ages: When Galaxies Were 1. PERSONNEL Young’’ was held at the University of Maryland in October The continuing personnel in the Department of As- 1998. Total attendance was approximately 200 persons. tronomy during the period were Professors M. Leventhal A new program within the University’s College Park ~Chair!, M. F. A’Hearn, J. Earl, J. P. Harrington, M. R. Scholars Program, a residential, living-learning program for Kundu, K. Papadopoulos, W. K. Rose, V. Trimble, S. Vogel, academically talented students, was initiated last year from and A. S. Wilson; Emeritus Professors W. C. Erickson, F. J. the Astronomy Department and the College of Computer, Kerr, and D. G. Wentzel; Adjunct Professors M. Hauser and Mathematical and Physical Sciences. The program in Sci- S. Holt; Associate Professors A. Harris, L. G. Mundy, and J. ence, Discovery and the Universe, is headed by faculty di- M. -
Updated Version
Updated version HIGHLIGHTS IN SPACE TECHNOLOGY AND APPLICATIONS 2011 A REPORT COMPILED BY THE INTERNATIONAL ASTRONAUTICAL FEDERATION (IAF) IN COOPERATION WITH THE SCIENTIFIC AND TECHNICAL SUBCOMMITTEE OF THE COMMITTEE ON THE PEACEFUL USES OF OUTER SPACE, UNITED NATIONS. 28 March 2012 Highlights in Space 2011 Table of Contents INTRODUCTION 5 I. OVERVIEW 5 II. SPACE TRANSPORTATION 10 A. CURRENT LAUNCH ACTIVITIES 10 B. DEVELOPMENT ACTIVITIES 14 C. LAUNCH FAILURES AND INVESTIGATIONS 26 III. ROBOTIC EARTH ORBITAL ACTIVITIES 29 A. REMOTE SENSING 29 B. GLOBAL NAVIGATION SYSTEMS 33 C. NANOSATELLITES 35 D. SPACE DEBRIS 36 IV. HUMAN SPACEFLIGHT 38 A. INTERNATIONAL SPACE STATION DEPLOYMENT AND OPERATIONS 38 2011 INTERNATIONAL SPACE STATION OPERATIONS IN DETAIL 38 B. OTHER FLIGHT OPERATIONS 46 C. MEDICAL ISSUES 47 D. SPACE TOURISM 48 V. SPACE STUDIES AND EXPLORATION 50 A. ASTRONOMY AND ASTROPHYSICS 50 B. PLASMA AND ATMOSPHERIC PHYSICS 56 C. SPACE EXPLORATION 57 D. SPACE OPERATIONS 60 VI. TECHNOLOGY - IMPLEMENTATION AND ADVANCES 65 A. PROPULSION 65 B. POWER 66 C. DESIGN, TECHNOLOGY AND DEVELOPMENT 67 D. MATERIALS AND STRUCTURES 69 E. INFORMATION TECHNOLOGY AND DATASETS 69 F. AUTOMATION AND ROBOTICS 72 G. SPACE RESEARCH FACILITIES AND GROUND STATIONS 72 H. SPACE ENVIRONMENTAL EFFECTS & MEDICAL ADVANCES 74 VII. SPACE AND SOCIETY 75 A. EDUCATION 75 B. PUBLIC AWARENESS 79 C. CULTURAL ASPECTS 82 Page 3 Highlights in Space 2011 VIII. GLOBAL SPACE DEVELOPMENTS 83 A. GOVERNMENT PROGRAMMES 83 B. COMMERCIAL ENTERPRISES 84 IX. INTERNATIONAL COOPERATION 92 A. GLOBAL DEVELOPMENTS AND ORGANISATIONS 92 B. EUROPE 94 C. AFRICA 101 D. ASIA 105 E. THE AMERICAS 110 F.