DOCSLIB.ORG

Institute of Theoretical Physics and Astronomy, Vilnius University

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Institute of Theoretical Physics and Astronomy, Vilnius University INSTITUTE OF THEORETICAL PHYSICS AND ASTRONOMY, VILNIUS UNIVERSITY Justas Zdanaviˇcius INTERSTELLAR EXTINCTION IN THE DIRECTION OF THE CAMELOPARDALIS DARK CLOUDS Doctoral dissertation Physical sciences, physics (02 P), astronomy, space research, cosmic chemistry (P 520) Vilnius, 2006 Disertacija rengta 1995 - 2005 metais Vilniaus universiteto Teorin˙es fizikos ir astronomijos institute Disertacija ginama eksternu Mokslinis konsultantas prof.habil.dr. V. Straiˇzys (Vilniaus universiteto Teorin˙es fizikos ir astronomijos institutas, fiziniai mokslai, fizika – 02 P) VILNIAUS UNIVERSITETO TEORINES˙ FIZIKOS IR ASTRONOMIJOS INSTITUTAS Justas Zdanaviˇcius TARPZVAIGˇ ZDINˇ EEKSTINKCIJA˙ ZIRAFOSˇ TAMSIU¸JU¸ DEBESU¸KRYPTIMI Daktaro disertacija Fiziniai mokslai, fizika (02 P), astronomija, erdv˙es tyrimai, kosmin˙e chemija (P 520) Vilnius, 2006 CONTENTS PUBLICATIONONTHESUBJECTOFTHEDISSERTATION .....................5 1. INTRODUCTION ................................................................6 2. REVIEWOFTHELITERATURE ................................................8 2.1. InvestigationsoftheinterstellarextinctioninCamelopardalis ..................8 2.2. Distinctiveobjectsinthearea ................................................10 2.3. Extinctionlawintheinvestigatedarea .......................................11 2.4. Galacticmodelsandluminosityfunctions .....................................11 2.5. SpiralstructureoftheGalaxyintheinvestigateddirection ...................12 3. METHODS ......................................................................14 3.1. Photoelectricobservationsandequipment ....................................14 3.1.1. AreaA1 ................................................................. 14 3.1.2. AreaA2 ................................................................. 14 3.1.3. AreaB ...................................................................15 3.2. CCDobservationandreductions .............................................15 3.2.1. CCDlinearitytesting ....................................................16 3.2.2. ObservationsinAreaC andreductions ...................................16 3.3. Theinterstellarextinctionlaw ................................................18 3.4. Photometricclassification ....................................................19 3.4.1. ClassificationinAreaA1 .................................................19 3.4.2. ClassificationinAreaA2 .................................................20 3.4.3. ClassificationinAreaB ..................................................20 3.4.4. ClassificationinAreaC ..................................................21 3.5Accuracyofstellarparameters ................................................22 4. RESULTSANDDISCUSSION ...................................................23 4.1. Interstellarreddeninglaw ....................................................23 4.1.1. Reddeninglawintheopticalrange .......................................23 4.1.2. Reddeninglawintheultraviolet ..........................................25 4.1.3. Reddeninglawintheinfrared ............................................25 4.1.4. Wavelengthdependenceofpolarization ...................................27 4.2. Interstellarextinction ........................................................27 4.2.1. InterstellarextinctioninAreaA1 .........................................27 4.2.2. InterstellarextinctioninAreaA2 .........................................29 4.2.3. InterstellarextinctioninAreaB ..........................................31 4.2.3.1. Interstellarextinctionvs. distance: largescale ........................33 4.2.3.2. Interstellarextinctionvs. distance: smallscale .......................35 4.2.4. InterstellarextinctioninAreaC ..........................................36 4.2.4.1. Generalviewofthearea .............................................37 4.2.4.2. Theextinctionatsmalldistances .....................................39 4.2.4.3. Theextinctionatlargedistances .....................................39 4.2.4.4. Limitingmagnitudeeffectsanddiscussion ............................40 4.2.5. TheCamOB3association ................................................42 4.3. Spacedistributionofstars ....................................................42 4.3.1. Somestatisticaldata .....................................................45 4.3.2. Theobservedspacedensities .............................................45 4.3.3. Theobservedluminosityfunction .........................................50 4.3.4. Onthecompletenessoftheobservedstarsample .........................50 4.4. Comparisonoftheresults ....................................................53 3 5. THEMAINRESULTSANDCONCLUSIONS ...................................54 5.1. SUMMARYOFTHEMAINRESULTS ......................................54 5.2. CONCLUSIONS .............................................................54 6. REFERENCES ..................................................................56 ACKNOWLEDGMENTS ...........................................................60 APPENDIX ........................................................................61 4 PUBLICATIONS ON THE SUBJECT OF THE DISSERTATION 1. Zdanaviˇcius K., Zdanaviˇcius J., Kazlauskas A. 1996, ”Interstellar Extinction in the Camelopardalis Dark Clouds”, Baltic Astronomy, 5, 563 2. Zdanaviˇcius J., Cernisˇ K., Zdanaviˇcius K., Straiˇzys V. 2001, ”Photometric Classifi- cation of Stars and the Interstellar Extinction near the Camelopardalis and Perseus Border”, Baltic Astronomy, 10, 349 3. Zdanaviˇcius J., Zdanaviˇcius K. 2002, ”Photometry and Classification of Stars along the Camelopardalis and Perseus Border”, Baltic Astronomy, 11, 75 4. Zdanaviˇcius J., Straiˇzys V., Corbally C. J. 2002, ”Interstellar Extinction Law near the Galactic Equator along the Camelopardalis, Perseus and Cassiopeia Border”, A&A, 392, 295 5. Zdanaviˇcius J., Zdanaviˇcius K. 2002, ”Interstellar Extinction along the Camelopardalis and Perseus Border”, Baltic Astronomy, 11, 441 6. Zdanaviˇcius J., Zdanaviˇcius K. 2003, ”A New CCD Camera at the Mol˙etai Observa- tory”, Baltic Astronomy, 12, 642 7. Zdanaviˇcius J., Zdanaviˇcius K. 2005, ”CCD Photometry and Classification of Stars in a Camelopardalis Area”, Baltic Astronomy, 14, 1 8. Zdanaviˇcius J., Zdanaviˇcius K., Straiˇzys V. 2005, ”Interstellar Extinction in the Di- rection of the Association Cam OB3”, Baltic Astronomy, 14, 31 9. Zdanaviˇcius J., Zdanaviˇcius K., Straiˇzys V. 2005, ”Space Distribution of Stars in the Direction of the Association Cam OB3”, Baltic Astronomy, 14, 313 CONTRIBUTION RELATED TO THE DISERTATION AT THE INTERNATIONAL CONFERENCES 1. Zdanaviˇcius K., Zdanaviˇcius J., Kazlauskas A. ”Interstellar Reddening in the Camelo- pardalis Dark Clouds”, in ”Photometric Systems and Standard Stars”, Vilnius 1995 August 14-16. 2. Zdanaviˇcius J., Zdanaviˇcius K. ”A New CCD Camera at the Moletai Observatory”, in Stellar Photometry: Past, Present and Future, Vilnius 2003 September 17-20. 3. Zdanaviˇcius J., Zdanaviˇcius K., Straiˇzys V. ”CCD Observations and Photometric Clas- sification of Stars at the Mol˙etai Observatory”, in the ”CrAO60 Conference”, Crimea, Nauchny, Ukraine 2005 September 11-18. 5 1. INTRODUCTION For better understanding the structure and evolution of our Galaxy, we need infor- mation about physical parameters of stars and interstellar matter and their distribution in space. The Galaxy contains about 300 billion stars, but only a small part of them is accessible for our investigation. Usually studies are concentrated only in the chosen directions and areas. Only a small part of the Galactic longitudes and latitudes is in- vestigated. For investigation of distant objects, especially near the Galactic plane, we need, in addition, the value of interstellar extinction in their directions. Usually, the interstellar extinction in different sky areas is evaluated by using stars for which photo- metric and spectral classification data are available. This has been done only in a small number of sky areas. Therefore, in many directions new investigations of interstellar extinction are needed. Among the least investigated directions in the Milky Way are dark clouds in the Camelopardalis constellation (Galactic longitudes between 140◦ and 150◦). In this direction our view crosses the Orion spiral arm, the Perseus arm and the Outer arm. A discontinuity of the Milky Way brightness at the Galactic longitudes 140◦–170◦ has been well known since the first wide-field surveys of the Galactic system. At these longitudes all the tracers of the Perseus spiral arm disappear. The Milky Way reappears only at = 170◦, near the Auriga border. We may suspect that this blocking of the light of distant stars probably is due to the crowding of dust clouds near the Galactic equator, which probably belong to the local Orion spiral arm. The Camelopardalis dark cloud-region, which occupies a large area of the Galactic equator ( =140◦–150◦), is still a poorly investigated area. The distances of the clouds and their extinctions are known with a low accuracy and only in some occasional direc- tions. This section of the Galaxy remains also a poorly investigated region considering interstellar extinction and the Galactic structure. These are the main reasons why we have chosen for investigation an area at the Camelopardalis border with Perseus and Cassiopeia. The main aim of the dissertation The main goal of this work was a comprehensive photometric investigation of the Milky Way region at Galactic longitudes 140◦–150◦ in the direction of the Cameloparda- lis dark clouds in order
Load more

Recommended publications
  • 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.
    [Show full text]
  • Astronomy Magazine Special Issue
    γ ι ζ γ δ α κ β κ ε γ β ρ ε ζ υ α φ ψ ω χ α π χ φ γ ω ο ι δ κ α ξ υ λ τ μ β α σ θ ε β σ δ γ ψ λ ω σ η ν θ Aι must-have for all stargazers η δ μ NEW EDITION! ζ λ β ε η κ NGC 6664 NGC 6539 ε τ μ NGC 6712 α υ δ ζ M26 ν NGC 6649 ψ Struve 2325 ζ ξ ATLAS χ α NGC 6604 ξ ο ν ν SCUTUM M16 of the γ SERP β NGC 6605 γ V450 ξ η υ η NGC 6645 M17 φ θ M18 ζ ρ ρ1 π Barnard 92 ο χ σ M25 M24 STARS M23 ν β κ All-in-one introduction ALL NEW MAPS WITH: to the night sky 42,000 more stars (87,000 plotted down to magnitude 8.5) AND 150+ more deep-sky objects (more than 1,200 total) The Eagle Nebula (M16) combines a dark nebula and a star cluster. In 100+ this intense region of star formation, “pillars” form at the boundaries spectacular between hot and cold gas. You’ll find this object on Map 14, a celestial portion of which lies above. photos PLUS: How to observe star clusters, nebulae, and galaxies AS2-CV0610.indd 1 6/10/10 4:17 PM NEW EDITION! AtlAs Tour the night sky of the The staff of Astronomy magazine decided to This atlas presents produce its first star atlas in 2006.
    [Show full text]
  • Meteor 36. Évf. 11. Sz. (2006. November)
    meteor Tartalom A Magyar Csillagászati Egyesület lapja Magyar-amerikai felfedezésű Journal of the Hungarian Astronomical exobolygó! 3 Association MCSE 1946-2006 5 H-1461 Budapest, Pf. 219., Hungary A lámák földjén 7 TeL/fax: (1) 279-0429 (hétköznap 8-20 ó.) Csillagászati hírek 13 E-mail: [email protected] Honlap: meteor.mcse.hu, www.mcse.hu A Besztercebányai Csillagvizsgáló 19 hirek.csillagaszat.hu A csillagos ég szépsége határtalan 21 Távcsőkészítés HU ISSN 0133-249X Egy új távcső születése 22 Főszerkesztő: Mizser Attila Számítástechnika Szerkesztők: Csaba György Gábor, Az XEphem 25 dr. Kiss László, dr. Kolláth Zoltán, Képmelléklet 34 Sárneczky Krisztián, Taracsák Gábor Csillagászattörténet és Tepliczky István Két közép-európai csillagvizsgáló A Meteor előfizetési díja 2006-ra évfordulójára 57 (nem tagok számára) 5500 Ft Róka Gedeon síremléke a Fiumei úti Egy szám ára: 460 Ft temetőben 62 Kiadványunkat az MCSE tagjai Programajánlat 64 illetményként kapják! Jelenségnaptár (december) 65 Tagnyilvántartás: Tepliczky István Tel.: (1) 464-1357, E-mail: [email protected] Megfigyelések Felelős kiadó: az MCSE elnöke Az egyesületi tagság formái (2006) Nap • rendes tagsági díj (közületek Észlelések (szeptember) 28 számára is!) (illetmény: Meteor + Hold Meteor csili, évkönyv 2006) 5400 Ft A három nővér 29 • rendes tagsági díj Csillagfedések 31 szomszédos országok 6500 Ft Meteorok nem szomszédos országok 9500 Ft 2005. július-augusztusi észlelések 35 • örökös tagdíj 135 000 Ft Üstökösök Az MCSE bankszámla-száma: A Nagy Becsapódás megfigyelése a 62900177-16700448 CARA észlelőhálózattal 38 Az MCSE adószáma: 19009162-2-43 Változócsillagok Az MCSE a beküldött anyagokat non-profit Észlelések (augusztus-szeptember) 44 céllal megjelentetheti az MCSE írott és Mélyég elektronikus fórumain, hacsak a szerző Észlelések (szeptember) 51 írásban másként nem rendelkezik.
    [Show full text]
  • Uvby Photometry of the Chemically Peculiar Stars HD 15980, HR 1094, 33 Gem, and HD 115708?
    ASTRONOMY & ASTROPHYSICS JANUARY I 1999,PAGE53 SUPPLEMENT SERIES Astron. Astrophys. Suppl. Ser. 134, 53–57 (1999) uvby photometry of the chemically peculiar stars HD 15980, HR 1094, 33 Gem, and HD 115708? Saul J. Adelman Department of Physics, The Citadel, 171 Moultrie Street, Charleston, SC 29409, U.S.A. e-mail: [email protected] Received June 19; accepted July 7, 1998 Abstract. Differential Str¨omgren uvby photometry ob- Table 1. Photometric groups tained with the Four College Automated Photoelectric HD Number Star Name Type V Spectral Type Telescope shows that the hot HgMn star 33 Gem is pho- tometrically constant. The Si star HD 15980 is found to 15980 v 7.89 Ap Si be a variable whose period is significantly greater than 2 16219 HR 760 c 6.54 B5 V years. The unusual magnetic chemically peculiar Co star 16004 HR 746 ch 6.36 B9p HgMn HR 1094 is discovered to be a low amplitude photometric variable with the magnetic field period of Hill & Blake, 22316 HR 1094 v 6.30 B9p 2.9761 days. The ephemeris for the magnetic chemically 23383 HR 1147 c 6.10 B9 Vnn peculiar star HD 115708 of Wade et al. is confirmed with 23594 HR 1161 ch 6.46 A0 Vn the error in its period of 5.07622 days being greatly re- 21447 HR 1046 c 5.09 A1 V ch duced. The u, v, b,andylight curves for both HR 1094 20536 6.76 B8 IV and HD 115708 exhibit differences which indicate complex 49606 33 Gem v 5.85 B7 III HgMn elemental photospheric abundance distributions.
    [Show full text]
  • SAC's 110 Best of the NGC
    SAC's 110 Best of the NGC by Paul Dickson Version: 1.4 | March 26, 1997 Copyright °c 1996, by Paul Dickson. All rights reserved If you purchased this book from Paul Dickson directly, please ignore this form. I already have most of this information. Why Should You Register This Book? Please register your copy of this book. I have done two book, SAC's 110 Best of the NGC and the Messier Logbook. In the works for late 1997 is a four volume set for the Herschel 400. q I am a beginner and I bought this book to get start with deep-sky observing. q I am an intermediate observer. I bought this book to observe these objects again. q I am an advance observer. I bought this book to add to my collect and/or re-observe these objects again. The book I'm registering is: q SAC's 110 Best of the NGC q Messier Logbook q I would like to purchase a copy of Herschel 400 book when it becomes available. Club Name: __________________________________________ Your Name: __________________________________________ Address: ____________________________________________ City: __________________ State: ____ Zip Code: _________ Mail this to: or E-mail it to: Paul Dickson 7714 N 36th Ave [email protected] Phoenix, AZ 85051-6401 After Observing the Messier Catalog, Try this Observing List: SAC's 110 Best of the NGC [email protected] http://www.seds.org/pub/info/newsletters/sacnews/html/sac.110.best.ngc.html SAC's 110 Best of the NGC is an observing list of some of the best objects after those in the Messier Catalog.
    [Show full text]
  • Open Clusters
    Open Clusters Open clusters (also known as galactic clusters) are of tremendous importance to the science of astronomy, if not to astrophysics and cosmology generally. Star clusters serve as the "laboratories" of astronomy, with stars now all at nearly the same distance and all created at essentially the same time. Each cluster thus is a running experiment, where we can observe the effects of composition, age, and environment. We are hobbled by seeing only a snapshot in time of each cluster, but taken collectively we can understand their evolution, and that of their included stars. These clusters are also important tracers of the Milky Way and other parent galaxies. They help us to understand their current structure and derive theories of the creation and evolution of galaxies. Just as importantly, starting from just the Hyades and the Pleiades, and then going to more distance clusters, open clusters serve to define the distance scale of the Milky Way, and from there all other galaxies and the entire universe. However, there is far more to the study of star clusters than that. Anyone who has looked at a cluster through a telescope or binoculars has realized that these are objects of immense beauty and symmetry. Whether a cluster like the Pleiades seen with delicate beauty with the unaided eye or in a small telescope or binoculars, or a cluster like NGC 7789 whose thousands of stars are seen with overpowering wonder in a large telescope, open clusters can only bring awe and amazement to the viewer. These sights are available to all.
    [Show full text]
  • Introduction to Astronomical Photometry, Second Edition
    This page intentionally left blank Introduction to Astronomical Photometry, Second Edition Completely updated, this Second Edition gives a broad review of astronomical photometry to provide an understanding of astrophysics from a data-based perspective. It explains the underlying principles of the instruments used, and the applications and inferences derived from measurements. Each chapter has been fully revised to account for the latest developments, including the use of CCDs. Highly illustrated, this book provides an overview and historical background of the subject before reviewing the main themes within astronomical photometry. The central chapters focus on the practical design of the instruments and methodology used. The book concludes by discussing specialized topics in stellar astronomy, concentrating on the information that can be derived from the analysis of the light curves of variable stars and close binary systems. This new edition includes numerous bibliographic notes and a glossary of terms. It is ideal for graduate students, academic researchers and advanced amateurs interested in practical and observational astronomy. Edwin Budding is a research fellow at the Carter Observatory, New Zealand, and a visiting professor at the Çanakkale University, Turkey. Osman Demircan is Director of the Ulupınar Observatory of Çanakkale University, Turkey. Cambridge Observing Handbooks for Research Astronomers Today’s professional astronomers must be able to adapt to use telescopes and interpret data at all wavelengths. This series is designed to provide them with a collection of concise, self-contained handbooks, which covers the basic principles peculiar to observing in a particular spectral region, or to using a special technique or type of instrument. The books can be used as an introduction to the subject and as a handy reference for use at the telescope, or in the office.
    [Show full text]
  • December 2019 BRAS Newsletter
    A Monthly Meeting December 11th at 7PM at HRPO (Monthly meetings are on 2nd Mondays, Highland Road Park Observatory). Annual Christmas Potluck, and election of officers. What's In This Issue? President’s Message Secretary's Summary Outreach Report Asteroid and Comet News Light Pollution Committee Report Globe at Night Member’s Corner – The Green Odyssey Messages from the HRPO Friday Night Lecture Series Science Academy Solar Viewing Stem Expansion Transit of Murcury Edge of Night Natural Sky Conference Observing Notes: Perseus – Rescuer Of Andromeda, or the Hero & Mythology Like this newsletter? See PAST ISSUES online back to 2009 Visit us on Facebook – Baton Rouge Astronomical Society Baton Rouge Astronomical Society Newsletter, Night Visions Page 2 of 25 December 2019 President’s Message I would like to thank everyone for having me as your president for the last two years . I hope you have enjoyed the past two year as much as I did. We had our first Members Only Observing Night (MOON) at HRPO on Sunday, 29 November,. New officers nominated for next year: Scott Cadwallader for President, Coy Wagoner for Vice- President, Thomas Halligan for Secretary, and Trey Anding for Treasurer. Of course, the nominations are still open. If you wish to be an officer or know of a fellow member who would make a good officer contact John Nagle, Merrill Hess, or Craig Brenden. We will hold our annual Baton Rouge “Gastronomical” Society Christmas holiday feast potluck and officer elections on Monday, December 9th at 7PM at HRPO. I look forward to seeing you all there. ALCon 2022 Bid Preparation and Planning Committee: We’ll meet again on December 14 at 3:00.pm at Coffee Call, 3132 College Dr F, Baton Rouge, LA 70808, UPCOMING BRAS MEETINGS: Light Pollution Committee - HRPO, Wednesday December 4th, 6:15 P.M.
    [Show full text]
  • 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.
    [Show full text]
  • 1. INTRODUCTION the Supershells Are Produced by Multiple Supernova Explo- Sions
    THE ASTROPHYSICAL JOURNAL, 476:717È729, 1997 February 20 ( 1997. The American Astronomical Society. All rights reserved. Printed in U.S.A. THE STRUCTURE OF THE GALACTIC MAGNETIC FIELD TOWARD THE HIGH-LATITUDE CLOUDS ANA I. GOMEZ DE CASTRO,1 RALPH E. PUDRITZ,2 AND PIERRE BASTIEN3 Received 1995 December 22; accepted 1996 September 5 ABSTRACT We present the results of an optical polarization survey toward the galactic anticenter, in the area 5h º a º 2h and 6¡ ¹ d ¹ 12¡. This region is characterized by the presence of a stream of high-velocity H I as well as high galactic latitude molecular clouds. We used our polarization data together with 100 km IRAS maps of the region to study the relation between the dust distribution and the geometry of the magnetic Ðeld. We Ðnd that there is a correlation between the percent polarization and the 100 km Ñux such thatP(%) ¹ (0.16 ^ 0.05)F . When the IRAS Ñux is converted into H I column densities this becomesP(%) ¹ (0.13 ^ 0.03)N 100[ 0.22, which is consistent with previous interstellar medium studies on the relation between reddening20 and polarization. This correlation indicates that our survey is as deep as IRAS and that the magnetic Ðeld geometry does not change strongly with the optical depth in the lines of sight that we have studied. The implied lower limit to the distance of our survey is 500È700 pc at galactic latitudes b \[20¡ and 100 pc at b \[50¡. Our main Ðnding is that the magnetic Ðeld is perpendicular to the H I high-velocity stream as well as the molecular cloud MBM 16 in the high-latitude region.
    [Show full text]
  • Vente De 2 Ans Montés Samedi 14 Mai Breeze Le 13 Mai
    11saint-cloud Vente de 2 ans montés Samedi 14 mai Breeze le 13 mai en association avec Index_Alpha_14_05 24/03/11 19:09 Page 71 Index alphabétique Alphabetical index NomsNOM des yearlings . .SUF . .Nos LOT NOM LOT ALKATARA . .0142 N(FAB'S MELODY 2009) . .0030 AMESBURY . .0148 N(FACTICE 2009) . .0031 FORCE MAJEUR . .0003 N(FAR DISTANCE 2009) . .0032 JOHN TUCKER . .0103 N(FIN 2009) . .0034 LIBERTY CAT . .0116 N(FLAMES 2009) . .0035 LUCAYAN . .0051 N(FOLLE LADY 2009) . .0036 MARCILHAC . .0074 N(FRANCAIS 2009) . .0037 MOST WANTED . .0123 N(GENDER DANCE 2009) . .0038 N(ABBEYLEIX LADY 2009) . .0139 N(GERMANCE 2009) . .0039 N(ABINGTON ANGEL 2009) . .0140 N(GILT LINKED 2009) . .0040 N(AIR BISCUIT 2009) . .0141 N(GREAT LADY SLEW 2009) . .0041 N(ALL EMBRACING 2009) . .0143 N(GRIN AND DARE IT 2009) . .0042 N(AMANDIAN 2009) . .0144 N(HARIYA 2009) . .0043 N(AMAZON BEAUTY 2009) . .0145 N(HOH MY DARLING 2009) . .0044 N(AMY G 2009) . .0146 N(INFINITY 2009) . .0045 N(ANSWER DO 2009) . .0147 N(INKLING 2009) . .0046 N(ARES VALLIS 2009) . .0149 N(JUST WOOD 2009) . .0048 N(AUCTION ROOM 2009) . .0150 N(KACSA 2009) . .0049 N(AVEZIA 2009) . .0151 N(KASSARIYA 2009) . .0050 N(BARCONEY 2009) . .0152 N(LALINA 2009) . .0052 N(BASHFUL 2009) . .0153 N(LANDELA 2009) . .0053 N(BAYOURIDA 2009) . .0154 N(LES ALIZES 2009) . .0054 N(BEE EATER 2009) . .0155 N(LIBRE 2009) . .0055 N(BELLA FIORELLA 2009) . .0156 N(LOUELLA 2009) . .0056 N(BERKELEY LODGE 2009) . .0157 N(LUANDA 2009) . .0057 N(BLACK PENNY 2009) . .0158 N(LUNA NEGRA 2009) .
    [Show full text]
  • Meteor.Mcse.Hu
    MCSE 2016/3 meteor.mcse.hu A Mars négy arca SZJA 1%! Az MCSE adószáma: 19009162-2-43 A Tharsis-régió három pajzsvulkánja és az Olympus Mons a Mars Express 2014. június 29-én készült felvételén (ESA / DLR / FU Berlin / Justin Cowart). TARTALOM Áttörés a fizikában......................... 3 GW150914: elõször hallottuk az Univerzum zenéjét....................... 4 A csillagászat ............................ 8 meteorA Magyar Csillagászati Egyesület lapja Journal of the Hungarian Astronomical Association Csillagászati hírek ........................ 10 H–1300 Budapest, Pf. 148., Hungary 1037 Budapest, Laborc u. 2/C. A távcsövek világa TELEFON/FAX: (1) 240-7708, +36-70-548-9124 Egy „klasszikus” naptávcsõ születése ........ 18 E-MAIL: [email protected], Honlap: meteor.mcse.hu HU ISSN 0133-249X Szabadszemes jelenségek Kiadó: Magyar Csillagászati Egyesület Gyöngyházfényû felhõk – történelmi észlelés! .. 22 FÔSZERKESZTÔ: Mizser Attila A hónap asztrofotója: hajnali együttállás ....... 27 SZERKESZTÔBIZOTTSÁG: Dr. Fûrész Gábor, Dr. Kiss László, Dr. Kereszturi Ákos, Dr. Kolláth Zoltán, Bolygók Mizser Attila, Dr. Sánta Gábor, Sárneczky Krisztián, Mars-oppozíció 2014 .................... 28 Dr. Szabados László és Dr. Szalai Tamás SZÍNES ELÕKÉSZÍTÉS: KÁRMÁN STÚDIÓ Nap FELELÔS KIADÓ: AZ MCSE ELNÖKE Téli változékony Napok .................38 A Meteor elôfizetési díja 2016-ra: (nem tagok számára) 7200 Ft Hold Egy szám ára: 600 Ft Januári Hold .........................42 Az egyesületi tagság formái (2016) • rendes tagsági díj (jogi személyek számára is) Meteorok
    [Show full text]