DOCSLIB.ORG

Noaonewsletter

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text

Load more

NOAO Newsletter NATIONAL OPTICAL ASTRONOMY OBSERVATORY ISSUE 106 — SEPTEMBER 2012 Director’s Corner Performance of pODI in 2013A: What to Expect ........................... 27 Focus on La Serena ....................................................................... 2 Instruments Offered at KPNO in 2013A ........................................ 28 Infrared Time-Series Observations with Phoenix ......................... 29 Science Highlights Availability of the CTIO Small Telescopes in 2013A ....................... 29 Gemini Catches a Disappearing Warm Debris Disk .......................... 3 Community Access to the 3.9-m Anglo-Australian Telescope ........ 30 Leo P: A Newly Discovered Local Group Candidate ......................... 4 Community Access Time Available in 2013 with CHARA ................ 30 The Yellow Supergiants in the Local Group as a Diagnostic New VO Capabilities in IRAF v2.16 ............................................... 30 of the Evolution of Massive Stars ................................................ 6 New NOAO Survey Programs Selected ......................................... 32 Needles in a Haystack: Studying Andromeda Stellar Populations What Does System User Support Do for You? ................................ 33 through Those of the Milky Way .................................................. 8 NOAO Operations & Staff System Science Capabilities NOAO Welcomes Markus Kissler-Patig LSST Project Reaches a Major Milestone ...................................... 10 as Gemini Observatory Director ................................................ 34 BigBOSS Status Update ............................................................... 10 CTIO through the Good and the Bad ............................................ 34 SAM Improves Angular Resolution over a Wide Field .................... 11 Celebrating CTIO’s 50th Anniversary ............................................ 35 KOSMOS and COSMOS Updates .................................................... 12 Students Wanted for 2013 CTIO REU Program .............................. 35 DECam Installation ..................................................................... 13 Where Art and Astronomy Meet: Latest TSIP Proposal Results ....................................................... 15 Thoughts on an Artist Residency at NOAO May 2012 .................. 36 Telescope System Instrumentation Program ............................... 15 Kitt Peak Visitor Center Activities Highlight Once-in-a-Lifetime Events ........................................................ 39 System Observing: Telescopes & Instruments Transit of Venus Event and Public Outreach on Easter Island......... 40 The Blanco ƒ/8 Secondary Mirror: 2013A NOAO Call for Proposals Due 27 September 2012 ............... 17 What Happened and Will It Return to Service? .......................... 41 System-Wide Observing Opportunities for Semester 2013A: Kitt Peak Water System Renovation ............................................ 43 Gemini, Keck, MMT, CHARA, Subaru, and AAT ............................ 18 NOAO Dark Skies Education for Multiple Audiences ...................... 44 CTIO Instruments Available for 2013A ......................................... 20 Bringing the Stars to Arizona Fifth Graders .................................. 46 Gemini Instruments Available for 2013A ..................................... 21 Dr. R. Chris Smith Switches to Full-Time AURA KPNO Instruments Available for 2013A........................................ 22 Head of Mission in Chile ........................................................... 47 Keck Instruments Available for 2013A ......................................... 23 Remembering 45 Years with KPNO .............................................. 48 MMT Instruments Available for 2013A ......................................... 23 Hector Rios Retires after 39 Years Supporting KPNO ..................... 48 AAT Instruments Available for 2013A .......................................... 23 Recent Staff Changes on Kitt Peak............................................... 49 CHARA Instruments Available for 2013 ........................................ 24 Kenneth Michael Merrill Observing with the CTIO Blanco 4-m Telescope 21 February 1947–31 March 2012 ............................................ 50 in 2013A and Beyond ............................................................... 24 Staff Changes at NOAO North and South Proposing for DECam in 2013A .................................................... 24 (16 February 2012–15 August 2012) ......................................... 51 DECam Commissioning and Science Verification .......................... 25 The DECam Ultraviolet (u) Filter .................................................. 25 Observing at WIYN in 2013A ....................................................... 26 Late Breaking News: pODI First Light The WIYN One De- gree Imager with a partially populated fo- cal plane (pODI) has Superimposed on this issue’s cover are been installed on the scenes of two recent solar events that were captured as the Sun silhouetted WIYN telescope, seen observatory facilities on Kitt Peak, first light, and commis- part of the Tohono O’odham Nation: sioning is beginning. (Background image) From a distance of 50 miles away on Mt Hopkins, Scott So far, performance Gottilla of the MMT Observatory is as predicted. In shot this spectacular view of the just a few hours of solar eclipse setting behind Kitt Peak operation (during a National Observatory on Sunday, bad monsoon year), 20 May 2012. (Image credit: Scott Gottilla, MMT Observatory.) we have seen images with FWHM as small (Foreground images: left) Venus is as ~0.7 arcsec. Read less than an hour into its transit of noise and full well ca- the Sun as viewed from the NOAO pacity are about as we Tucson patio. (Right:) Venus nears measured in the lab. the completion of its transit as the Initial measurements Sun sets behind the National Solar Unguided 30 second r' band exposure of M11, taken by T. Boroson and D. Harbeck on of sensitivity give the 6 August 2012. Central 9 detectors, covering 24-arcmin square, are shown. Observatory’s McMath-Pierce Solar following zero points Telescope on Kitt Peak. The portion of this final transit of the century for the four SDSS filters: g' is 26.68, r' is 26.56, i' is 26.11, and z' is 25.14. These are the that was visible to the United States magnitudes of an object at 1.0 airmass that give 1 detected electron per second. occurred 5 June 2012. (Image credits: (Left) Peter Marenfeld & (right) Gary More up to date information will be posted on the NOAO Web site before the 2013A Poczulp, NOAO/AURA/NSF.) proposal deadline. To share in the commissioning experience with the ODI team, take a look at their blog at podideployment.blogspot.com. Tod R. Lauer, Editor David Silva NOAO Director’s Office Tod R. Lauer Science Highlights Jane Price, Ken Hinkle NOAO System Science Center Betty Stobie Science Data Management Nicole S. van der Bliek CTIO Timothy C. Beers, Cheri Marks-Murphy KPNO Stephen Pompea Education & Public Outreach The NOAO Newsletter Dave Bell, Mia Hartman System Observing is published semi-annually by the David Sprayberry NOAO System Technology Center National Optical Astronomy Observatory William Gressler LSST Project P.O. Box 26732, Tucson, AZ 85726 Patricia Knezek WIYN [email protected] Production Staff Publication Notes Barbara Fraps Managing Editor Peter Marenfeld Design & Layout This Newsletter is presented with active Kathie Coil Production Support links online at www.noao.edu/noao/noaonews.html If you are receiving a paper copy but would prefer not to, please let us know at [email protected]. NOAO Newsletter September 2012 1 Director’s Corner Focus on La Serena David Silva Events in La Serena have captured my attention much of the time since coordinated and safe way has been a major challenge, but one that all the last Newsletter. have overcome jointly. Work on the DECam Community (calibration) Pipeline at the National Center for Supercomputing Applications ac- Accidents that led to serious personnel injuries and equipment damage celerated and delivery of an operational system should be in time for at the Blanco 4-m telescope and one of the CTIO infrastructure improve- the commissioning and science verification. Above all this hovers the ment projects were most unfortunate reminders that safety and risk man- Dark Energy Survey, a major international, multi-agency, multi-organi- agement must remain the highest priority for all NOAO activities at all zation collaboration. Many interfaces, many meetings, and many hours times. Both accidents were promptly and thoroughly reviewed by inter- have gone toward delivering a revolutionary capability to attack major nal and external panels, whose reports were provided to NSF, the Depart- problems on the science frontier. We have learned many technical and ment of Energy, and the Chilean authorities as applicable. An exter- organizational lessons that can be applied to the Big Baryon Oscilla- nal panel also reviewed the safety process and culture within tion Spectroscopic Survey (BigBOSS) and the Large Synoptic the Blanco enclosure with a particular focus on the Dark Survey Telescope (LSST) projects. It is an exciting time for Energy Camera (DECam) installation. Many helpful rec- NOAO and its user community. ommendations emerged from these reviews, and we are in the process of applying them in Arizona and Chile. Speaking of LSST, the recent decision by the Nation- The DECam project, which has had no
Recommended publications

  • Elias Acevedo Travis Adams Trevor Adams Storme Adkins Ricky Amador Linda Allen Dylan Allison Isaac Allison Nathaniel Aguirre Allison

    Elias Acevedo Travis Adams Trevor Adams Storme Adkins Ricky Amador Linda Allen Dylan Allison Isaac Allison Nathaniel Aguirre Allison Steven Allison Morgan Amerto Candela Arturo Arriaga Efrain Arriaga Jessica Aten Chase Baird Andrew Baldwin Sarah Ballard Anderson Rojas Benjamin Ballew Christian Banks Matthew Bartlett Regina Bartlett Andrew Beasley Dawson Beck Kieran Becker Brandon Bennett Payton Berryhill Hienzelleman Alyson Adrian Blackwell Caylie Aubrey Boeke Jeremy Bonner Charity Boylen Kyle Bradley Rodney Bradley Beverly Blackwelder Blankenship Hunter Bray Lorene Bristol Rachel Brooks David Brown Parker Brown Kristopher Aaron Buchanan Jacob Buchanan Magnolia Bryant Buchanan Taylor Buchanan Kimberly Kasey Burnette Mariya Burnette Seth Burnette Kynieshra Burns Crislyn Buzbee Ysabela Cable Ashley Cadwell Burleson Abby Calhoun Eduardo Dylan Campbell Ivy Carroll Katelyn Carroll Shawn Carroll Taven Carson Julie Carver Rebecca Caudill Campanur Sarah Causby Kyle Chapman Josie Chilcote Hailey Clark Lesley Clark Mackenzie Clark Coby Conley Hannah Conley Lea Conner Kelsey Kathleen Marco Jarrett Cothron Joshua Cox Makayla Cox Sierra Cox Cameron Crater Daniel Creson Charles Dale Cooper Cornejo-Martinez Carmen Daniels Addison Davis Ashton Davis Brian Davis Caden Davis Joseph Davis Conner Deese Dante Dejesus Katryna Devroude Samantha Krystal Dugan Loretta Edwards Cameron Effler Bailey Elliott Maalik Elliott Matthew Cole England Cheyenne Esque Dominguez Emerson Charles Faurote Callie Fender Damon Fender Kenneth Kayleigh Floyd McKenna Foster Sadie
  • Football State Championship Single Game Record Book 11 Man.Xlsx

    Football State Championship Single Game Record Book 11 Man.Xlsx

    OSAA State Championship Football Games, 11-Man Single-Game Records see separate record book for 8-man records INDIVIDUAL TEAM OFFENSE OFFENSE MOST YARDS RUSHING MOST POINTS SCORED 357, Andy Taylor, McNary vs. Sheldon, 2001 62, West Linn vs. Central Catholic, 2016 MOST RUSHING ATTEMPTS MOST POINTS, HALF 43, 2 tied 48 (1st), Marist vs. Baker, 2009 MOST RUSHING TOUCHDOWNS MOST POINTS, QUARTER 6, Keanon Lowe, Jesuit vs. Sheldon, 2009 28 (2nd), 2 tied LONGEST RUN HIGHEST COMBINED SCORE 91 (TD), Trevor Tinney, Santiam vs. Kennedy, 2018 99, McNary 51, Beaverton 48, 1997 MOST PASS ATTEMPTS LOWEST COMBINED SCORE 55, Sam Vidlak, Hidden Valley vs Santiam Christian, 2019 0, 3 tied MOST PASS COMPLETIONS MOST TOUCHDOWNS 39, Sam Vidlak, Hidden Valley vs Santiam Christian, 2019 9, 2 tied BEST COMPLETION PERCENTAGE (MIN. 15 ATT) MOST RUSHING ATTEMPTS 86.1 (31-for-36), Cade Knighton, Central Catholic vs Lake Oswego, 2019 70, Dayton vs. Neah-Kah-Nie, 1985 MOST YARDS PASSING MOST RUSHING YARDS 479, Sam Vidlak, Hidden Valley vs Santiam Christian, 2019 489, Vale vs. Harrisburg, 2014 LONGEST PASS MOST RUSHING TOUCHDOWNS 98 (TD), Dalton Reimers to Kody Nelson, Grant Union vs. Regis, 2013 7, 3 tied MOST PASSING TOUCHDOWNS MOST PASS ATTEMPTS 6, Taylor Barton, Beaverton vs. McNary, 1997 55, Hidden Valley vs Santiam Christian, 2019 MOST INTERCEPTIONS THROWN MOST PASS COMPLETIONS 7 (on 18 att.), Lee, Churchill vs. Corvallis, 1979 39, Hidden Valley vs Santiam Christian, 2019 MOST RECEPTIONS MOST PASSING YARDS 18, Jeremiah Noga, Hidden Valley vs Santiam Christian, 2019 479, Hidden Valley vs Santiam Christian, 2019 MOST RECEIVING YARDS MOST PASSING TOUCHDOWNS 270, Jeremiah Noga, Hidden Valley vs Santiam Christian, 2019 7, Beaverton vs.
  • Family Group Sheets Surname Index

    Family Group Sheets Surname Index

    PASSAIC COUNTY HISTORICAL SOCIETY FAMILY GROUP SHEETS SURNAME INDEX This collection of 660 folders contains over 50,000 family group sheets of families that resided in Passaic and Bergen Counties. These sheets were prepared by volunteers using the Societies various collections of church, ceme tery and bible records as well as city directo ries, county history books, newspaper abstracts and the Mattie Bowman manuscript collection. Example of a typical Family Group Sheet from the collection. PASSAIC COUNTY HISTORICAL SOCIETY FAMILY GROUP SHEETS — SURNAME INDEX A Aldous Anderson Arndt Aartse Aldrich Anderton Arnot Abbott Alenson Andolina Aronsohn Abeel Alesbrook Andreasen Arquhart Abel Alesso Andrews Arrayo Aber Alexander Andriesse (see Anderson) Arrowsmith Abers Alexandra Andruss Arthur Abildgaard Alfano Angell Arthurs Abraham Alje (see Alyea) Anger Aruesman Abrams Aljea (see Alyea) Angland Asbell Abrash Alji (see Alyea) Angle Ash Ack Allabough Anglehart Ashbee Acker Allee Anglin Ashbey Ackerman Allen Angotti Ashe Ackerson Allenan Angus Ashfield Ackert Aller Annan Ashley Acton Allerman Anners Ashman Adair Allibone Anness Ashton Adams Alliegro Annin Ashworth Adamson Allington Anson Asper Adcroft Alliot Anthony Aspinwall Addy Allison Anton Astin Adelman Allman Antoniou Astley Adolf Allmen Apel Astwood Adrian Allyton Appel Atchison Aesben Almgren Apple Ateroft Agar Almond Applebee Atha Ager Alois Applegate Atherly Agnew Alpart Appleton Atherson Ahnert Alper Apsley Atherton Aiken Alsheimer Arbuthnot Atkins Aikman Alterman Archbold Atkinson Aimone
  • Psychology of Space Exploration Psychology of About the Book Douglas A

    Psychology of Space Exploration Psychology of About the Book Douglas A

    About the Editor Contemporary Research in Historical Perspective Psychology of Space Exploration Psychology of About the Book Douglas A. Vakoch is a professor in the Department As we stand poised on the verge of a new era of of Clinical Psychology at the California Institute of spaceflight, we must rethink every element, including Integral Studies, as well as the director of Interstellar Space Exploration the human dimension. This book explores some of the Message Composition at the SETI Institute. Dr. Vakoch Contemporary Research in Historical Perspective contributions of psychology to yesterday’s great space is a licensed psychologist in the state of California, and Edited by Douglas A. Vakoch race, today’s orbiter and International Space Station mis- his psychological research, clinical, and teaching interests sions, and tomorrow’s journeys beyond Earth’s orbit. include topics in psychotherapy, ecopsychology, and meth- Early missions into space were typically brief, and crews odologies of psychological research. As a corresponding were small, often drawn from a single nation. As an member of the International Academy of Astronautics, intensely competitive space race has given way to inter- Dr. Vakoch chairs that organization’s Study Groups on national cooperation over the decades, the challenges of Interstellar Message Construction and Active SETI. communicating across cultural boundaries and dealing Through his membership in the International Institute with interpersonal conflicts have become increasingly of Space Law, he examines
  • Arxiv:1912.02186V1 [Astro-Ph.GA] 4 Dec 2019 Early in the Formation of an L∗ Galaxy

    Arxiv:1912.02186V1 [Astro-Ph.GA] 4 Dec 2019 Early in the Formation of an L∗ Galaxy

    Draft version December 6, 2019 Typeset using LATEX twocolumn style in AASTeX63 Elemental Abundances in M31: The Kinematics and Chemical Evolution of Dwarf Spheroidal Satellite Galaxies∗ Evan N. Kirby,1 Karoline M. Gilbert,2, 3 Ivanna Escala,1, 4 Jennifer Wojno,3 Puragra Guhathakurta,5 Steven R. Majewski,6 and Rachael L. Beaton4, 7, y 1California Institute of Technology, 1200 E. California Blvd., MC 249-17, Pasadena, CA 91125, USA 2Space Telescope Science Institute, 3700 San Martin Dr., Baltimore, MD 21218, USA 3Department of Physics & Astronomy, Bloomberg Center for Physics and Astronomy, Johns Hopkins University, 3400 N. Charles Street, Baltimore, MD 21218 4Department of Astrophysical Sciences, Princeton University, 4 Ivy Lane, Princeton, NJ 08544 5Department of Astronomy & Astrophysics, University of California, Santa Cruz, 1156 High Street, Santa Cruz, CA 95064, USA 6Department of Astronomy, University of Virginia, Charlottesville, VA 22904-4325, USA 7The Observatories of the Carnegie Institution for Science, 813 Santa Barbara St., Pasadena, CA 91101 (Accepted 3 December 2019) Submitted to AJ ABSTRACT We present deep spectroscopy from Keck/DEIMOS of Andromeda I, III, V, VII, and X, all of which are dwarf spheroidal satellites of M31. The sample includes 256 spectroscopic members across all five dSphs. We confirm previous measurements of the velocity dispersions and dynamical masses, and we provide upper limits on bulk rotation. Our measurements confirm that M31 satellites obey the same relation between stellar mass and stellar metallicity as Milky Way (MW) satellites and other dwarf galaxies in the Local Group. The metallicity distributions show similar trends with stellar mass as MW satellites, including evidence in massive satellites for external influence, like pre-enrichment or gas accretion.
  • An Observational Limit on the Dwarf Galaxy Population of the Local Group

    An Observational Limit on the Dwarf Galaxy Population of the Local Group

    An Observational Limit on the Dwarf Galaxy Population of the Local Group Alan B. Whiting1 Cerro Tololo Inter-American Observatory Casilla 603, La Serena, Chile [email protected] George K. T. Hau University of Durham Mike Irwin University of Cambridge Miguel Verdugo Institut f¨ur Astrophysik G¨ottingen, Germany ABSTRACT We present the results of an all-sky, deep optical survey for faint Local Group dwarf galaxies. Candidate objects were selected from the second Palomar survey (POSS-II) and ESO/SRC survey plates and follow-up observations performed to determine whether they were indeed overlooked members of the Local Group. arXiv:astro-ph/0610551v1 18 Oct 2006 Only two galaxies (Antlia and Cetus) were discovered this way out of 206 candi- dates. Based on internal and external comparisons, we estimate that our visual survey is more than 77% complete for objects larger than one arc minute in size and with a surface brightness greater than an extremely faint limit over the 72% of the sky not obstructed by the Milky Way. Our limit of sensitivity cannot be calculated exactly, but is certainly fainter than 25 magnitudes per square arc second in R, probably 25.5 and possibly approaching 26. We conclude that there are at most one or two Local Group dwarf galaxies fitting our observational cri- teria still undiscovered in the clear part of the sky, and roughly a dozen hidden behind the Milky Way. Our work places the “missing satellite problem” on a firm quantitative observational basis. We present detailed data on all our candidates, including surface brightness measurements.
  • PDF Presentatie Van Frank

    PDF Presentatie Van Frank

    13” Frank Hol / Skyheerlen Elfje en Vixen R150S Newton in de jaren ’80 en begin ’90 vooral zon, maan, planeten en Messiers. H.T.S. – vriendin – baan – huis kopen & verbouwen trouwen – kinderen waarneemstop. Vanaf 2006 weer actief waarnemen. Focus op objecten uit de Local Group of Galaxies • 2008: Celestron C14. • 2015: 13” aluminium reisdobson. • 2017-2018-2019: 13” aluminium bino-dobson. Rocherath – SQM 21.2-21.7 13” M31 NGC206 Globulars Stofbanden Stervormings- gebieden … 13” M31 M32 NGC206 Globulars Stofbanden Stervormings- gebieden … NGC206 13” NGC205 M32 M32 is de kern van een NGC 221 galaxy die grotendeels Andromeda opgelokt is door M31. M32 is dan ook net zo X helder als de kern van M31 (met 100 miljoen sterren). Telescoop: ≈ 5.0° x 4.0° verrekijker Locatie: (bijna) overal. De helderste dwerg (vanuit onze breedte) aan de hemel: magnitude 8.1. M110 “Een elliptisch stelsel is NGC 205 dood-saai.” Andromeda Neen, kijk eens hoe mooi het stelsel aan de rand in de X donkere achtergrond verdwijnt. Een watje in de lucht! Telescoop: ≈ 5.0° x 4.0° verrekijker Locatie: (bijna) overal. Een grotere telescoop laat de randen mooi verdwijnen in de omgeving. 30’ x 25’ Burnham’s NGC185 and NGC147 “These two miniature elliptical galaxies appear to be distant Celestial companians of the Great Andromeda Galaxy M31. They are Handbook some 7 degrees north of it in the sky, and are approximately the same distance from us, about 2.2 milion light years.” Start van een lange zoektocht (die nog niet voorbij is). 13” NGC147 Twee elliptische stelsels. & NGC147 is een stuk moeilijker dan NGC185.
  • Characterization of Lunar Crater Ejecta Deposits Using Radar Data from the Mini-Rf Instrument on Lro

    Characterization of Lunar Crater Ejecta Deposits Using Radar Data from the Mini-Rf Instrument on Lro

    44th Lunar and Planetary Science Conference (2013) 2380.pdf CHARACTERIZATION OF LUNAR CRATER EJECTA DEPOSITS USING RADAR DATA FROM THE MINI-RF INSTRUMENT ON LRO. G.W. Patterson, J.T.S. Cahill, and D.B.J. Bussey. Johns Hopkins University Applied Physics Laboratory, Laurel, MD ([email protected]). Introduction: Impact cratering is the dominant formulation the key inputs are the degree of weathering process on the surface of the Moon and a polarization, m, 2 2 2 1/2 primary means of distributing material on the lunar m = (S2 +S3 +S4 ) /S1 surface [1]. Radar data provide unique information on and the degree of circularity, χ, both the horizontal and vertical distribution of impact sin2χ = − S4/mS1. deposits [2]. The Miniature Radio Frequency (Mini- The m−chi decomposition is expressed through a RF) instrument flown on NASAs Lunar Reconnais- color-coded image with, sance Orbiter (LRO) is a Synthetic Aperture Radar R = [m S1 (1 + sin2χ)/2] (SAR) with an innovative hybrid dual-polarimetric G = [S1 (1 – m)] architecture that transmits a circularly polarized signal, B = [mS1 (1 – sin2χ)/2] and receives orthogonal linear polarizations and their where R represents the double-bounce component, G relative phase [3]. The four Stokes parameters that represents the random-polarized (volume scattering) characterize the observed backscattered EM field are component, and the B represents the single-bounce calculated from the received data. These parameters component of backscatter in an observed scene. can be used to produce a variety of derived products Analysis (Byrgius A): Byrgius A is a 19 km di- that provide unique information on the radar scattering ameter Copernican crater located in the lunar highlands properties of a surface.
  • Powell Bill Streets Listing FY2012

    Powell Bill Streets Listing FY2012

    Powell Bill Streets Listing FY2012 This report is a listing of all streets and street segments that the City of Charlotte, North Carolina had under municipal maintenance for fiscal year 2012 (July 1, 2011 to June 30, 2012). TOTAL MILES OF CITY MAINTAINED STREETS FOR FY2012: 2,434.64 Contact information is as follows: David Snider, PLS City Survey Manager City of Charlotte Engineering Property Management Real Estate Division Survey/Mapping/GIS Section 600 East 4th Street Charlotte, NC 28202 704-336-3875 [email protected] Monday - Friday 7am to 4pm City of Charlotte Powell Bill Report FY2012 Street Name Miles Street Name Miles W 10TH ST 0.41 E 28TH ST 0.13 E 10TH ST 0.18 W 28TH ST 0.69 E 10TH ST 0.47 E 28TH ST 0.17 E 10TH ST 0.08 W 29TH ST 0.11 W 11TH ST 0.08 W 2ND ST 0.21 E 11TH ST 0.67 W 30TH ST 0.28 W 11TH ST 0.09 W 31ST ST 0.17 E 12TH ST 0.75 W 32ND ST 0.42 W 12TH ST 0.10 E 32ND ST 0.11 W 12TH ST 0.34 E 33RD ST 0.11 W 12th St 0.05 E 34TH ST 0.21 E 13TH ST 0.14 E 34TH ST 0.23 E 13TH ST 0.06 E 34TH ST 0.05 E 15TH ST 0.21 E 35TH ST 1.10 W 15TH ST 0.07 E 36TH ST 1.05 E 15TH ST 0.32 E 37TH ST 0.29 E 16TH ST 0.30 E 3RD ST 0.65 E 16TH ST 0.20 W 3RD ST 0.39 E 16TH ST 0.27 W 4TH ST 0.50 E 17TH ST 0.39 E 4TH ST 0.70 E 17TH ST 0.15 E 4TH ST 0.60 E 18TH ST 0.62 W 4TH ST 0.07 E 19TH ST 0.09 W 4TH ST 0.21 E 19TH ST 0.35 W 4TH EXTENSION 0.86 W 1ST ST 0.25 W 5TH ST 0.60 E 1ST ST 0.04 W 5TH ST 0.40 W 1ST ST 0.12 E 5TH ST 0.66 E 20TH ST 0.30 W 5TH ST 0.32 E 20TH ST 0.04 E 5TH ST 0.08 E 21ST ST 0.17 E 5TH ST 1.07 E 22ND ST 0.18 W 6TH ST 0.06 E
  • Neutral Hydrogen in Local Group Dwarf Galaxies

    Neutral Hydrogen in Local Group Dwarf Galaxies

    Neutral Hydrogen in Local Group Dwarf Galaxies Jana Grcevich Submitted in partial fulfillment of the requirements for the degree of Doctor of Philosophy in the Graduate School of Arts and Sciences COLUMBIA UNIVERSITY 2013 c 2013 Jana Grcevich All rights reserved ABSTRACT Neutral Hydrogen in Local Group Dwarfs Jana Grcevich The gas content of the faintest and lowest mass dwarf galaxies provide means to study the evolution of these unique objects. The evolutionary histories of low mass dwarf galaxies are interesting in their own right, but may also provide insight into fundamental cosmological problems. These include the nature of dark matter, the disagreement be- tween the number of observed Local Group dwarf galaxies and that predicted by ΛCDM, and the discrepancy between the observed census of baryonic matter in the Milky Way’s environment and theoretical predictions. This thesis explores these questions by studying the neutral hydrogen (HI) component of dwarf galaxies. First, limits on the HI mass of the ultra-faint dwarfs are presented, and the HI content of all Local Group dwarf galaxies is examined from an environmental standpoint. We find that those Local Group dwarfs within 270 kpc of a massive host galaxy are deficient in HI as compared to those at larger galactocentric distances. Ram- 4 3 pressure arguments are invoked, which suggest halo densities greater than 2-3 10− cm− × out to distances of at least 70 kpc, values which are consistent with theoretical models and suggest the halo may harbor a large fraction of the host galaxy’s baryons. We also find that accounting for the incompleteness of the dwarf galaxy count, known dwarf galaxies whose gas has been removed could have provided at most 2.1 108 M of HI gas to the Milky Way.
  • Draft181 182Chapter 10

    Draft181 182Chapter 10

    Chapter 10 Formation and evolution of the Local Group 480 Myr <t< 13.7 Gyr; 10 >z> 0; 30 K > T > 2.725 K The fact that the [G]alactic system is a member of a group is a very fortunate accident. Edwin Hubble, The Realm of the Nebulae Summary: The Local Group (LG) is the group of galaxies gravitationally associ- ated with the Galaxy and M 31. Galaxies within the LG have overcome the general expansion of the universe. There are approximately 75 galaxies in the LG within a 12 diameter of ∼3 Mpc having a total mass of 2-5 × 10 M⊙. A strong morphology- density relation exists in which gas-poor dwarf spheroidals (dSphs) are preferentially found closer to the Galaxy/M 31 than gas-rich dwarf irregulars (dIrrs). This is often promoted as evidence of environmental processes due to the massive Galaxy and M 31 driving the evolutionary change between dwarf galaxy types. High Veloc- ity Clouds (HVCs) are likely to be either remnant gas left over from the formation of the Galaxy, or associated with other galaxies that have been tidally disturbed by the Galaxy. Our Galaxy halo is about 12 Gyr old. A thin disk with ongoing star formation and older thick disk built by z ≥ 2 minor mergers exist. The Galaxy and M 31 will merge in 5.9 Gyr and ultimately resemble an elliptical galaxy. The LG has −1 vLG = 627 ± 22 km s with respect to the CMB. About 44% of the LG motion is due to the infall into the region of the Great Attractor, and the remaining amount of motion is due to more distant overdensities between 130 and 180 h−1 Mpc, primarily the Shapley supercluster.
  • Department of Defense State of Hawaii Department Of

    Department of Defense State of Hawaii Department Of

    ARTHUR J. LOGAN DAVID Y. IGE MAJOR GENERAL ADJUTANT GENERAL GOVERNOR KENNETH S. HARA BRIGADIER GENERAL DEPUTY ADJUTANT GENERAL STATE OF HAWAII DEPARTMENT OF DEFENSE OFFICE OF THE ADJUTANT GENERAL 3949 DIAMOND HEAD ROAD HONOLULU, HAWAII 96816-4495 STATE OF HAWAII DEPARTMENT OF DEFENSE HAWAII EMERGENCY MANAGEMENT AGENCY TESTIMONY ON HOUSE BILL 1180 HD1, RELATING TO NATURAL DISASTERS Before the Senate Committee on PUBLIC SAFETY, INTERGOVERNMENTAL, AND MILITARY AFFAIRS by THOMAS L. TRAVIS Administrator, Hawaii Emergency Management Agency (HI-EMA) Aloha Chair Nishihara and Vice-Chair Wakai, and Members of the Committee: The Hawaii Emergency Management Agency (HI-EMA) supports House Bill 1180 HD1. House Bill 1180 HD1 Appropriates funds for disaster relief, recovery, mitigation, and remediation activities for the county of Hawai‘i. The unprecedented volcanic eruptions on the island of Hawaii from May 3, 2018 to August 14, 2018 destroyed hundreds of homes, communities, businesses, farms, schools, cultural sites, water systems, electrical grid, and roadways. HI-EMA deployed several personnel to assist the Hawaii County during the Kilauea eruption and continues to provide support to the long-term recovery and hazard mitigation efforts. Note: My comments represent HI-EMA concerns at the state emergency management level only. I would defer to the separate comment/testimonies of the county emergency management agencies, as they would be the jurisdictions impacted by this legislation at the local level. Thank you for the opportunity to provide testimony on House Bill 1180 HD1. Thomas L. Travis: [email protected]; 808-733-4300 DAVID Y. IGE PHYLLIS SHIMABUKURO-GEISER Governor Chairperson, Board of Agriculture JOSH GREEN GLENN K.