DOCSLIB.ORG

The March 2017

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text

Load more

The Volume 126 No. 3 March 2017 Bullen Monthly newsleer of the Astronomical Society of South Australia Inc Don’t miss Dr Russell Cockman at the General Meeng, on March 1: How we dodged a doomsday event in 2012 In this issue: ♦ ASSA 125th Birthday Celebraons & Awards ♦ Review - GSO RC12 truss Ritchie-Chreen astrograph ♦ Amateur astronomer helps uncover secrets of unique pulsar binary system ♦ Planetary Nebulae in Puppis Registered by Australia Post Visit us on the web: Bullen of the ASSA Inc 1 March 2017 Print Post Approved PP 100000605 www.assa.org.au In this issue: ASSA Acvies 3-4 Details of general meengs, viewing nights etc ASSA 125th birthday & award presentaons 5-6 ASTRONOMICAL SOCIETY of Member’s achievements & a celebraon SOUTH AUSTRALIA Inc Equipment Review 7-8 GPO Box 199, Adelaide SA 5001 GSO RC12 truss Ritchie-Chreen astrograph The Society (ASSA) can be contacted by post to the Astro News 9-10 address above, or by e-mail to [email protected]. Latest astronomical discoveries and reports Membership of the Society is open to all, with the only prerequisite being an interest in Astronomy. The Sky this month 11-14 Solar System, Comets, Variable Stars, Deep Sky Membership fees are: Full Member $75 ASSA Contact Informaon 15 Concessional Member $60 Subscribe e-Bullen only; discount $20 Members’ Image Gallery 16 Concession informaon and membership brochures can A gallery of members’ astrophotos be obtained from the ASSA web site at: hp://www.assa.org.au or by contacng The Secretary (see contacts page). Member Submissions Sister Society relaonships with: Submissions for inclusion in The Bullen are welcome Orange County Astronomers from all members; submissions may be held over for later edions. www.ocastronomers.org Colorado Springs Astronomical Society Wherever possible, text submissions should be sent via e- www.csastro.org mail or posted on CD-ROM in almost any word processing Central Arkansas Astronomical Society format and may sll be submied handwrien or typed. www.caasastro.org Your name may be withheld only if requested at the me Arkansas-Oklohoma Astronomical Society of subming. Images should be high resoluon and www.aoas.org uncompressed, e.g. TIFF file formats, although high Gruppo Astrofili di Piacenza (Italy) resoluon JPEGs are acceptable. Your full name and www.astrofilipc.it object designaon must be provided with each image and will be published. Equipment/exposure etc details are welcome but oponal. HAVE YOU GOT YOUR COPY YET? Adversing & Classifieds Available at the Small adverts and classifieds are free for members (space General Meengs, or by perming). Commercial adversing is available at a cost mail order of $50.00 per quarter page per issue. All enquiries and submissions should be addressed to The $25 + $4 p&h Editor and preferably sent by e-mail to: [email protected] Email: [email protected] For large files (e.g. on CD) or hardcopy items, post to: Joe Grida Editor, The Bullen PO Box 682, Cover photo: M1, Crab Nebula, a supernova remnant in Mylor SA 5153 Taurus imaged by Paul Montague. 10 x 20 minute subs with a QHY8 one shot colour camera, 8” carbon fibre Contribuons should reach the Editor no later than Ritchey Chreen scope on a Skywatcher NEQ6 Pro the 7th of each month, for publicaon in the following mount. Processed with PixInsight and Photoshop. month’s issue of The Bullen Bullen of the ASSA Inc 2 March 2017 Acvies February 2017 - the month at a glance Happy Birthday, ASSA Celebrang 125 years in 2017! General Meeng How we dodged a doomsday event Wednesday, 1 March 2017 in 2012 @ 8:00pm Kerr Grant Lecture Theatre In September 1859 the most powerful solar storm in recorded history 2nd Floor, Physics Blg wreaked havoc on our, then, fledgling technology. Known as the University of Adelaide Carrington Event, it is inevitable that a storm of similar ferocity will North Terrace, Adelaide happen again, but the consequences for our more advanced and more vulnerable technologies could be far worse. In July 2012 a Carrington- type event, that went largely unreported in the media, fortunately ASV Speaker Exchange: missed the Earth, but slammed into an orbing solar observatory. In his Dr Russell Cockman talk Dr Russell Cockman will review the circumstances of the Carrington event, the potenal cost of a similar event to our present way of life, Vice-President what was learned from the observaons collected in July 2012 and how Astronomical Society of Victoria the damaging impacts can be migated. Planning on going March 2017 Calendar observing? Day Time Acvity Wed 1 7:00pm Beginners’ Meeng, Adelaide Save yourself unnecessary travel and me. If Wed 1 8:00pm General Meeng, Adelaide the weather looks doubul where you are, Thu 2 7:30pm Whyalla Members’ Meeng check with the following people to see if the Fri 3 8:00pm Public Viewing Night, The Heights event is sll on (or see www.assa.org.au aer Fri 17 7:30pm Astro-imaging Group, Modbury 5pm). Sat 18 8:00pm Members’ Viewing Night, Stockport Stockport Observatory (DO 3-13) Fri 24 8:00pm Public & Members’ Viewing, NYP Sat 25 8:00pm Members’ Viewing Night, Tooperang Observatory 8528 2284 Sat 25 8:00pm Members’ Viewing Night, Stockport Tue 28 7:30pm ASSA Council Meeng Lyn Grida 8391 5377 Tony Beresford 8338 1231 Note: Times shown above and throughout this document are: Heights Observatory (DO 3-34) 2 Oct 2016 to 1 Apr 2017 : South Australia Summer Time (UTC+10:30) Robert Bronca 8266 7504 2 Apr 2017 to 1 Oct 2017 : South Australia Standard Time (UTC+ 9:30) Whyalla Astronomy Educaon Peter Mayfield 0405 410 895 Wednesday, 1 March 2017 @ 7:00pm Tooperang Kerr Grant Lecture Theatre Jeff Lowrey 0429 690 610 Jovian Planets Northern Yorke Peninsula Out past the main asteroid belt lies the Tony “Hendy” Henderson 0429 352 382 realm of the giant planets. Find out how the four gas planets formed and become Riverland so large. We will also look at their internal Tim Vivian 0407 800 225 structure and explore the different ring systems circling each of these worlds. Bullen of the ASSA Inc 3 March 2017 Reports and Noces Reports on recent ASSA acvies, and noces of upcoming events Have you got your Now available! Naonal Police The ASSA 125th Anniversary Check? 2017 Calendar is now available for purchase - $20 + $5 postage • New legislaon applies from 11 April 2015 Order now from [email protected] • Impacts on all ASSA members who volunteer at ASSA sanconed public events • i.e. public viewing nights, school visits, Naonal Science For free delivery from Gawler - Murray Bridge - Week, private booked nights Goolwa, contact Trish Ellin at [email protected] or (08)82613354 From the 11th April 2015, all members who aend ASSA sanconed public events MUST have a current NPC clearance cerficate, or equivalent clearance leer from their employer, and MUST have provided ASSA with these details. Non-compliance is a $10,000 fine to ASSA. Full details available here: hps://www.assa.org.au/members/policies Please note: Meeng DVD’s will no longer be available, however members will sll be able to view the meeng recordings via the ASSA website. Guest Speaker Biography Astro-Imaging Group Meeng Dr Russell Cockman Friday 17th March @ 7:30PM University Of The Third Age, Dr Russell Cockman, an 22 Golden Grove Rd, Modbury North Aussie by birth, has a PhD in Enter via Gold Court to access Car Park 1 Chemistry and has had a life- long interest in Astronomy. Monochromac (Black & White) imaging sensors He enjoys all things have the advantage of astronomical, parcularly greater sensivity and astrophotography, more control than cosmology and the Sun. their OSC (One Shot Colour) counterparts, He has travelled widely to allowing the operator view the Universe under greater flexibility in how dark skies and to photograph the image is captured by using Narrowband or RGB colour astronomical events as varied as solar eclipses, meteor filters. storms and aurorae. This month Tom Valencic will present his experiences with He is currently Vice President of the Astronomical Society of LRGB Astro Imaging. Victoria, and Director of the Solar Secon. Please bring any images that you would like to share with the group on a USB memory sck. Any quesons, contact the Group Coordinator, Jeff Lusher: [email protected] Bullen of the ASSA Inc 4 March 2017 ASSA 125th Birthday Celebraon & Awards Presentaons Members were recognised for their achievements, as we also remembered our birth 125 years ago Numerous presentaons of awards were made at the February 2017 General Meeng. Colin Hill reports: “At the Astronomy Educaon session, I was proud to present awards for the 2016 Basic Beginner’s Course in Astronomy. The award is given to those who aend nine or more sessions throughout the year”. See photo at top right. At the General Meeng, the following Service Awards were presented: Dean Davidson - For his service to ASSA over many years, namely as President (a few mes), Editor (a few mes), and as Project Manager of the Turret Replacement Project Above: The recipients of the award were (le to right) Robert Jenkins - For his service to ASSA over Robert Becker, Craig Robinson, Chris Whiall and Craig many years, namely as President, Assistant Withers (not present). Colin Hill at far right. Secretary, and fundraising for the Turret Replacement Project Paul Curnow - For his service to ASSA over many years, namely as Publicity Officer, and organising the guest speakers each month The NetCra Australia Astrophotography Award was presented to Paul Montague. He submied 6 very high quality images. The members of the ASSA Council chose the winning entry - The Corona Australis Field.
Recommended publications
  • Variable Star Section Circular No

    Variable Star Section Circular No

    The British Astronomical Association Variable Star Section Circular No. 176 June 2018 Office: Burlington House, Piccadilly, London W1J 0DU Contents Joint BAA-AAVSO meeting 3 From the Director 4 V392 Per (Nova Per 2018) - Gary Poyner & Robin Leadbeater 7 High-Cadence measurements of the symbiotic star V648 Car using a CMOS camera - Steve Fleming, Terry Moon and David Hoxley 9 Analysis of two semi-regular variables in Draco – Shaun Albrighton 13 V720 Cas and its close companions – David Boyd 16 Introduction to AstroImageJ photometry software – Richard Lee 20 Project Melvyn, May 2018 update – Alex Pratt 25 Eclipsing Binary news – Des Loughney 27 Summer Eclipsing Binaries – Christopher Lloyd 29 68u Herculis – David Conner 36 The BAAVSS Eclipsing Binary Programme lists – Christopher Lloyd 39 Section Publications 42 Contributing to the VSSC 42 Section Officers 43 Cover image V392 Per (Nova Per 2018) May 6.129UT iTelescope T11 120s. Martin Mobberley 2 Back to contents Joint BAA/AAVSO Meeting on Variable Stars Warwick University Saturday 7th & Sunday 8th July 2018 Following the last very successful joint meeting between the BAAVSS and the AAVSO at Cambridge in 2008, we are holding another joint meeting at Warwick University in the UK on 7-8 July 2018. This two-day meeting will include talks by Prof Giovanna Tinetti (University College London) Chemical composition of planets in our Galaxy Prof Boris Gaensicke (University of Warwick) Gaia: Transforming Stellar Astronomy Prof Tom Marsh (University of Warwick) AR Scorpii: a remarkable highly variable
  • 19 6 6Apj. . .14 6. .743D the VARIABILITY of RHO PUPPIS* I. J

    19 6 6Apj. . .14 6. .743D the VARIABILITY of RHO PUPPIS* I. J

    .743D 6. .14 THE VARIABILITY OF RHO PUPPIS* . I. J. Danziger and L. V. Kumf 6ApJ. Mount Wilson and Palomar Observatories 6 19 Carnegie Institution of Washington, California Institute of Technology Received April 30, 1966 ABSTRACT The results of simultaneous spectrophotometric and spectral observations of the short-period variable star, p Puppis, are reported. The amplitudes of radial-velocity, light, and temperature variations are 11 km/sec, 0.15 mag., and 280° K, respectively. The relative phases differ from those observed in cluster- type c variables. Estimates of the absolute luminosity and mass from the observed gravity and the Py/(p/po) — Q relationship indicate that either p Puppis is pulsating in a higher-order harmonic mode than the first or the theory of its pulsation is not understood. I. INTRODUCTION The bright star p Puppis, classified in the MKK system as type F6II, was first shown to be variable in light (period 0.141 days) by Eggen (1956) who measured a total ampli- tude of 0.15 mag. Struve, Sahade, and Zebergs (1956) showed that there is an associated variation in radial velocity with a total amplitude of 10 km/sec and that maximum brightness occurs approximately 0.02 days later than minimum radial velocity. Bappu (1959) reported that two-color measurements indicate a variation in temperature of 300° K. An intrinsic luminosity of p Puppis, MPg = +2.4, was obtained by Kinman (1959). He assumed it fitted the observed period-luminosity relation of cluster-type c variables in order to use an observed period-luminosity relation. Strömgren’s c-l sys- tem indices were measured by McNamara and Augason (1962) to derive Mpg = +1.7 and a mass 9J£ = 3.2 $)îo from the period-density law with the pulsation constant Q ~ 0-041* It is of interest to note that, although p Puppis has been classified as a ô Scuti star, none of the multiple-period characteristics associated with such stars has been found to apply to it.
  • From Dinuclear Systems to Close Binary Stars: Application to Source

    From Dinuclear Systems to Close Binary Stars: Application to Source

    From Dinuclear Systems to Close Binary Stars: Application to Source of Energy in the Universe V.V. Sargsyan1,2, H. Lenske2, G.G. Adamian1, and N.V. Antonenko1 1Joint Institute for Nuclear Research, 141980 Dubna, Russia, 2Institut f¨ur Theoretische Physik der Justus–Liebig–Universit¨at, D–35392 Giessen, Germany (Dated: January 1, 2019) Abstract The evolution of close binary stars in mass asymmetry (transfer) coordinate is considered. The conditions for the formation of stable symmetric binary stars are analyzed. The role of symmetriza- tion of asymmetric binary star in the transformation of potential energy into internal energy of star and the release of a large amount of energy is revealed. PACS numbers: 26.90.+n, 95.30.-k Keywords: close binary stars, mass transfer, mass asymmetry arXiv:1812.11338v1 [astro-ph.SR] 29 Dec 2018 1 I. INTRODUCTION Because mass transfer is an important observable for close binary systems in which the two stars are nearly in contact [1–8], it is meaningful and necessary to study the evolution of these stellar systems in the mass asymmetry coordinate η = (M1 − M2)/(M1 + M2) where Mi, (i = 1, 2), are the stellar masses. In our previous work [9], we used classical Newtonian mechanics and study the evolution of the close binary stars in their center-of- mass frame by analyzing the total potential energy U(η) as a function of η at fixed total mass M = M1 + M2 and orbital angular momentum L = Li of the system. The limits for the formation and evolution of the di-star systems were derived and analyzed.
  • What Can Make a Contact Binary Star Explode? Evan Cook, Kenton Greene, and Prof

    What Can Make a Contact Binary Star Explode? Evan Cook, Kenton Greene, and Prof

    What Can Make a Contact Binary Star Explode? Evan Cook, Kenton Greene, and Prof. Larry Molnar, Calvin College, Grand Rapids, Michigan, Summer 2017 Supported by the Dragt Family (EC), a VanderPlas Fellowship (KG), and the National Science Foundation (LM) Introduction Merger Mechanism What To Look For Contact binary stars orbit each other so closely that they share a common Fillout Factor: atmosphere. For millions of years, these stars orbit without significant change. L2 The degree of contact in Eventually, an as yet unknown mechanism causes them to spiral together, merge, a contact binary is called and explode. the fillout factor (Fig. 3). At the upper extreme, Three years ago, we identified a contact binary system, KIC 9832227, which we the surface approaches observe to be spiraling inwards, and which we now predict will explode in the year L (on the left in Fig. 3), 2022, give or take a year. This was the first ever prediction of a nova outburst. We 2 the point at which the are using this opportunity to try to discover the mechanism behind stellar outward centrifugal mergers. To explore this question this summer, we studied our system more Fig. 3. The black line is a cross section through force balances the intensively using both optical and X-ray telescopes. We determined a more the equator of our star. The gray lines show attractive gravitational accurate shape with the PHOEBE software package (see Fig. 1). And we began a the range of possible shapes for contact stars. Fig. 6. A Hubble Space Telescope image force. Material reaching survey of the shapes The fillout factor is a parameter from 0 to 1 of a red nova, V838 Mon, that exploded L flows away from the of other contact Fig.
  • Downloads/ Astero2007.Pdf) and by Aerts Et Al (2010)

    Downloads/ Astero2007.Pdf) and by Aerts Et Al (2010)

    This work is protected by copyright and other intellectual property rights and duplication or sale of all or part is not permitted, except that material may be duplicated by you for research, private study, criticism/review or educational purposes. Electronic or print copies are for your own personal, non- commercial use and shall not be passed to any other individual. No quotation may be published without proper acknowledgement. For any other use, or to quote extensively from the work, permission must be obtained from the copyright holder/s. i Fundamental Properties of Solar-Type Eclipsing Binary Stars, and Kinematic Biases of Exoplanet Host Stars Richard J. Hutcheon Submitted in accordance with the requirements for the degree of Doctor of Philosophy. Research Institute: School of Environmental and Physical Sciences and Applied Mathematics. University of Keele June 2015 ii iii Abstract This thesis is in three parts: 1) a kinematical study of exoplanet host stars, 2) a study of the detached eclipsing binary V1094 Tau and 3) and observations of other eclipsing binaries. Part I investigates kinematical biases between two methods of detecting exoplanets; the ground based transit and radial velocity methods. Distances of the host stars from each method lie in almost non-overlapping groups. Samples of host stars from each group are selected. They are compared by means of matching comparison samples of stars not known to have exoplanets. The detection methods are found to introduce a negligible bias into the metallicities of the host stars but the ground based transit method introduces a median age bias of about -2 Gyr.
  • GTO Keypad Manual, V5.001

    GTO Keypad Manual, V5.001

    ASTRO-PHYSICS GTO KEYPAD Version v5.xxx Please read the manual even if you are familiar with previous keypad versions Flash RAM Updates Keypad Java updates can be accomplished through the Internet. Check our web site www.astro-physics.com/software-updates/ November 11, 2020 ASTRO-PHYSICS KEYPAD MANUAL FOR MACH2GTO Version 5.xxx November 11, 2020 ABOUT THIS MANUAL 4 REQUIREMENTS 5 What Mount Control Box Do I Need? 5 Can I Upgrade My Present Keypad? 5 GTO KEYPAD 6 Layout and Buttons of the Keypad 6 Vacuum Fluorescent Display 6 N-S-E-W Directional Buttons 6 STOP Button 6 <PREV and NEXT> Buttons 7 Number Buttons 7 GOTO Button 7 ± Button 7 MENU / ESC Button 7 RECAL and NEXT> Buttons Pressed Simultaneously 7 ENT Button 7 Retractable Hanger 7 Keypad Protector 8 Keypad Care and Warranty 8 Warranty 8 Keypad Battery for 512K Memory Boards 8 Cleaning Red Keypad Display 8 Temperature Ratings 8 Environmental Recommendation 8 GETTING STARTED – DO THIS AT HOME, IF POSSIBLE 9 Set Up your Mount and Cable Connections 9 Gather Basic Information 9 Enter Your Location, Time and Date 9 Set Up Your Mount in the Field 10 Polar Alignment 10 Mach2GTO Daytime Alignment Routine 10 KEYPAD START UP SEQUENCE FOR NEW SETUPS OR SETUP IN NEW LOCATION 11 Assemble Your Mount 11 Startup Sequence 11 Location 11 Select Existing Location 11 Set Up New Location 11 Date and Time 12 Additional Information 12 KEYPAD START UP SEQUENCE FOR MOUNTS USED AT THE SAME LOCATION WITHOUT A COMPUTER 13 KEYPAD START UP SEQUENCE FOR COMPUTER CONTROLLED MOUNTS 14 1 OBJECTS MENU – HAVE SOME FUN!
  • Arxiv:2006.10868V2 [Astro-Ph.SR] 9 Apr 2021 Spain and Institut D’Estudis Espacials De Catalunya (IEEC), C/Gran Capit`A2-4, E-08034 2 Serenelli, Weiss, Aerts Et Al

    Arxiv:2006.10868V2 [Astro-Ph.SR] 9 Apr 2021 Spain and Institut D’Estudis Espacials De Catalunya (IEEC), C/Gran Capit`A2-4, E-08034 2 Serenelli, Weiss, Aerts Et Al

    Noname manuscript No. (will be inserted by the editor) Weighing stars from birth to death: mass determination methods across the HRD Aldo Serenelli · Achim Weiss · Conny Aerts · George C. Angelou · David Baroch · Nate Bastian · Paul G. Beck · Maria Bergemann · Joachim M. Bestenlehner · Ian Czekala · Nancy Elias-Rosa · Ana Escorza · Vincent Van Eylen · Diane K. Feuillet · Davide Gandolfi · Mark Gieles · L´eoGirardi · Yveline Lebreton · Nicolas Lodieu · Marie Martig · Marcelo M. Miller Bertolami · Joey S.G. Mombarg · Juan Carlos Morales · Andr´esMoya · Benard Nsamba · KreˇsimirPavlovski · May G. Pedersen · Ignasi Ribas · Fabian R.N. Schneider · Victor Silva Aguirre · Keivan G. Stassun · Eline Tolstoy · Pier-Emmanuel Tremblay · Konstanze Zwintz Received: date / Accepted: date A. Serenelli Institute of Space Sciences (ICE, CSIC), Carrer de Can Magrans S/N, Bellaterra, E- 08193, Spain and Institut d'Estudis Espacials de Catalunya (IEEC), Carrer Gran Capita 2, Barcelona, E-08034, Spain E-mail: [email protected] A. Weiss Max Planck Institute for Astrophysics, Karl Schwarzschild Str. 1, Garching bei M¨unchen, D-85741, Germany C. Aerts Institute of Astronomy, Department of Physics & Astronomy, KU Leuven, Celestijnenlaan 200 D, 3001 Leuven, Belgium and Department of Astrophysics, IMAPP, Radboud University Nijmegen, Heyendaalseweg 135, 6525 AJ Nijmegen, the Netherlands G.C. Angelou Max Planck Institute for Astrophysics, Karl Schwarzschild Str. 1, Garching bei M¨unchen, D-85741, Germany D. Baroch J. C. Morales I. Ribas Institute of· Space Sciences· (ICE, CSIC), Carrer de Can Magrans S/N, Bellaterra, E-08193, arXiv:2006.10868v2 [astro-ph.SR] 9 Apr 2021 Spain and Institut d'Estudis Espacials de Catalunya (IEEC), C/Gran Capit`a2-4, E-08034 2 Serenelli, Weiss, Aerts et al.
  • Journal of the Association of Lunar & Planetary Observers

    Journal of the Association of Lunar & Planetary Observers

    ISSN-0039-2502 Journal of the Association of Lunar & Planetary Observers The Strolling Astronomer Volume 54, Number 1, Winter 2012 Now in Portable Document Format (PDF) for Macintosh and PC-compatible computers Online and in COLOR at http://www.alpo-astronomy.org Inside this issue . • ALCon 2012 information • What’s REALLY up with those Venusian clouds? • Whole-disk brightness measurements of Mars • A ‘Great White Spot’ on Saturn? • The Remote Planets in 2010 and 2011 . plus reports about your ALPO section activities and much, much more! Online image of the December 11, 2011 lunar eclipse taken by “Shutter Shooter” on the Gold Coast, Queensland, Australia. The first moon was taken at 10:30 pm local time, the second moon at 11:20 pm, the third moon 12:00midnight and the last blood-red moon was taken at 1:15 a.m. According to his web page, a Pentax X90 12.1 megapixel digital camera was used for image-capture, and Adobe PhotoShop CS5 was used to stitch the photos together and added a small amount of contrast/ brightness. Source: http://shutter-shooter.deviantart.com/art/Lunar-Eclipse-December-2011-273379748 Your Affordable Since 1975 Astro-Imaging Source #9534 ED80T Carbon Fiber Triplet Apochromatic Refractor $799.99 #9534 ED102T Carbon Fiber Triplet Apochromatic Refractor $1,999.99 #9530 The Leo Trio (M65, M66 and NGC 3628) – Taken with the Orion ED102T CF Refractor, StarShoot Pro V2.0, Orion Atlas EQ-G, and Orion StarShoot AutoGuider. 23 x 10 minute #9530 exposures combined. Orion image. StarShoot™ G3 Deep Space StarShoot™ AllSky Magnificent Mini AutoGuider Package Imaging Camera Camera $349.99 #24781 $499.99 #53082 Color $899.99 $499.99 #53083 Mono #52187 NTSC Std.
  • The Survey of Western Palestine. a General Index

    The Survey of Western Palestine. a General Index

    THE SURVEY OF WESTERN PALESTINE. A GENERAL INDEX TO 1. THE MEMOIRS, VOLS. I.-III. 2. THE SPECIAL PAPERS. 3. THE JERUSALEM VOLUME. 4. THE FLORA AND FAUNA OF PALESTINE. 5. THE GEOLOGICAL SURVEY. AND TO THE ARABIC AND ENGLISH NAME LISTS. COMPILED BY HENRY C. STEWARDSON. 1888 Electronic Edition by Todd Bolen BiblePlaces.com 2005 PREFACE. ITTLE explanation is required of the arrangement followed in this Volume, beyond calling L attention to the division of this Volume into two parts: the first forms a combined Index to the three Volumes of the Memoirs, the Special Papers, the Jerusalem Volume, the Flora and Fauna of Palestine, and the Geological Survey; and the second is an Index to the Arabic and English Name Lists. This division was considered advisable in order to avoid the continual use of reference letters to the Name Lists, which would otherwise have been required. The large number of entries rendered it absolutely necessary to make them as brief as possible; but it is hoped that it will be found that perspicuity has not been sacrificed to brevity. A full explanation of the reference letters used will be found on the first page. The short Hebrew Index at the end of the Volume has been kindly furnished by Dr. W. Aldis Wright. H. C. S. PREFACE TO ELECTRONIC EDITION. ore than a hundred years after the publication of the Survey of Western Palestine, its M continued value is well-known and is evidenced by the recent reprint and librarians’ propensity to store the work in restricted areas of the library.
  • Infrared Spectroscopy of the Merger Candidate KIC 9832227

    Infrared Spectroscopy of the Merger Candidate KIC 9832227

    Astronomy & Astrophysics manuscript no. KIC˙accepted c ESO 2018 April 5, 2018 Infrared spectroscopy of the merger candidate KIC 9832227 Ya. V. Pavlenko⋆1, A. Evans2, D. P. K. Banerjee3, J. Southworth2, M. Shahbandeh4, and S. Davis4 1 Main Astronomical Observatory, Academy of Sciences of the Ukraine, Golosiiv Woods, Kyiv-127, 03680 Ukraine 2 Astrophysics Group, Keele University, Keele, Staffordshire, ST5 5BG, UK 3 Physical Research Laboratory, Navrangpura, Ahmedabad, Gujarat 380009, India 4 Department of Physics, Florida State University, 77 Chieftain Way, Tallahassee, FL 32306-4350, USA Received; accepted ABSTRACT Context. It has been predicted that the object KIC 9832227 – a contact binary star – will undergo a merger in 2022.2±0.7. We describe the near infrared spectrum of this object as an impetus to obtain pre-merger data. Aims. We aim to characterise (i) the nature of the individual components of the binary and (ii) the likely circumbinary environment, so that the merger – if and when it occurs – can be interpreted in an informed manner. Methods. We use infrared spectroscopy in the wavelength range 0.7 µm–2.5 µm, to which we fit model atmospheres to represent the individual stars. We use the binary ephemeris to determine the orbital phase at the time of observation. Results. We find that the infrared spectrum is best fitted by a single component having effective temperature 5 920 K, log [g] = 4.1 and solar metallicity, consistent with the fact that the system was observed at conjunction. Conclusions. The strength of the infrared H lines is consistent with a high value of log g, and the strength of the Ca ii triplet indicates the presence of a chromosphere, as might be expected from rapid stellar rotation.
  • 1 I Articles Dans Des Revues Avec Comité De Lecture

    1 I Articles Dans Des Revues Avec Comité De Lecture

    1 I Articles dans des revues avec comité de lecture (ACL) internationales II Articles dans des revues sans comité de lecture (SCL) NB : La liste des publications est donnée de façon exhautive par équipe, ce qui signifie qu’il existe des redondances chaque fois qu’une publication est cosignée pas des membres dépendant d’équipes différentes. Par contre, certains chercheurs sont à cheval sur deux équipes, dans ce cas il leur a été demandé de rattacher leurs publications seulement à l’une ou à l’autre équipe en fonction de la nature de la publication et la raison de leur rattachement à deux équipes. I Articles dans des revues avec comité de lecture (ACL) internationales ANNÉE 2006 A / Equipe « Physique des galaxies » 1. Aguilar, J.A. et al. (the ANTARES collaboration, 214 auteurs). First results of the Instrumentation Line for the deep- sea ANTARES neturino telescope Astroparticle Physic 26, 314 2. Auld, R.; Minchin, R. F.; Davies, J. I.; Catinella, B.; van Driel, W.; Henning, P. A.; Linder, S.; Momjian, E.; Muller, E.; O'Neil, K.; Boselli, A.; et 18 coauteurs. The Arecibo Galaxy Environment Survey: precursor observations of the NGC 628 group, 2006, MNRAS,.371,1617A 3. Boselli, A.; Boissier, S.; Cortese, L.; Gil de Paz, A.; Seibert, M.; Madore, B. F.; Buat, V.; Martin, D. C. The Fate of Spiral Galaxies in Clusters: The Star Formation History of the Anemic Virgo Cluster Galaxy NGC 4569, 2006, ApJ, 651, 811B 4. Boselli, A.; Gavazzi, G. Environmental Effects on Late-Type Galaxies in Nearby Clusters -2006, PASP, 118, 517 5.
  • Statistics and Supermetallicity: the Metallicity of Mu Leonis

    Statistics and Supermetallicity: the Metallicity of Mu Leonis

    A&A 379, 917–923 (2001) Astronomy DOI: 10.1051/0004-6361:20011380 & c ESO 2001 Astrophysics Statistics and supermetallicity: The metallicity of Mu Leonis B. J. Taylor? Department of Physics and Astronomy, N283 ESC, Brigham Young University, Provo, UT 84602-4360, USA Received 9 February 2001 / Accepted 2 October 2001 Abstract. For the often-studied “SMR” giant µ Leo, Smith & Ruck (2000) have recently found that [Fe/H] ∼ +0.3 dex. Their conclusion is tested here in a “statistical” paradigm, in which statistical principles are used to select published high-dispersion µ Leo data and assign error bars to them. When data from Smith & Ruck and from Takeda et al. (1998) are added to a data base compiled in 1999, it is found that conclusions from an earlier analysis (Taylor 1999c) are essentially unchanged: the mean value of [Fe/H] ∼ +0.23 0.025 dex, and values ≤+0.2 dex are not clearly ruled out at 95% confidence. In addition, the hypothesis that [Fe/H] ≥ +0.3dexwhich emerges from the Smith-Ruck analysis is formally rejected at 98% confidence. The “default paradigm” which is commonly used to assess µ Leo data is also considered. The basic characteristics of that paradigm continue to be a) unexplained exclusion of statistical analysis, b) inadequately explained deletions from an [Fe/H] data base containing accordant data, and c) an undefended convention that µ Leo is to have a metallicity of about +0.3dex or higher. As a result, it seems fair to describe the Smith-Ruck application and other applications of the default paradigm as invalid methods of inference from the data.