Curriculum Vitae Feryal Ozel¨
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IVS NICT-TDC News No.39
ISSN 1882-3432 CONTENTS Proceedings of the 18th NICT TDC Symposium (Kashima, October 1, 2020) KNIFE, Kashima Nobeyama InterFErometer . 3 Makoto Miyoshi Space-Time Measurements Research Inspired by Kashima VLBI Group . 8 Mizuhiko Hosokawa ALMA High Frequency Long Baseline Phase Correction Using Band-to-band ..... 11 (B2B) Phase Referencing Yoshiharu Asaki and Luke T. Maud Development of a 6.5-22.5 GHz Very Wide Band Feed Antenna Using a New ..... 15 Quadruple-Ridged Antenna for the Traditional Radio Telescopes Yutaka Hasegawa*, Yasumasa Yamasaki, Hideo Ogawa, Taiki Kawakami, Yoshi- nori Yonekura, Kimihiro Kimura, Takuya Akahori, Masayuki Ishino, Yuki Kawa- hara Development of Wideband Antenna . 18 Hideki Ujihara Performance Survey of Superconductor Filter Introduced in Wideband Re- ..... 20 ceiver for VGOS of the Ishioka VLBI Station Tomokazu Nakakuki, Haruka Ueshiba, Saho Matsumoto, Yu Takagi, Kyonosuke Hayashi, Toru Yutsudo, Katsuhiro Mori, Tomokazu Kobayashi, and Mamoru Sekido New Calibration Method for a Radiometer Without Using Liquid Nitrogen ..... 23 Cooled Absorber Noriyuki Kawaguchi, Yuichi Chikahiro, Kenichi Harada, and Kensuke Ozeki Comparison of Atmospheric Delay Models (NMF, VMF1, and VMF3) in ..... 27 VLBI analysis Mamoru Sekido and Monia Negusini HINOTORI Status Report . 31 Hiroshi Imai On-the-Fly Interferometer Experiment with the Yamaguchi Interferometer . 34 Kenta Fujisawa, Kotaro Niinuma, Masanori Akimoto, and Hideyuki Kobayashi Superconducting Wide-band BRF for Geodetic VLBI Observation with ..... 36 VGOS Radio Telescope -
Orbital Phase Resolved Spectroscopy of 4U1538-52 with MAXI
Astronomy & Astrophysics manuscript no. jjrr-mif-maxi_rev5 c ESO 2018 September 12, 2018 Orbital phase resolved spectroscopy of 4U1538−52 with MAXI J. J. Rodes-Roca1, 2, 3,,⋆ T. Mihara3, S. Nakahira4, J. M. Torrejón1, 2, Á. Giménez-García1, 2, 5, and G. Bernabéu1, 2 1 Dept. of Physics, Systems Engineering and Sign Theory, University of Alicante, 03080 Ali- cante, Spain e-mail: [email protected] 2 University Institute of Physics Applied to Sciences and Technologies, University of Alicante, 03080 Alicante, Spain 3 MAXI team, Institute of Physical and Chemical Research (RIKEN), 2-1 Hirosawa, Wako, Saitama 351-0198, Japan e-mail: [email protected] 4 ISS Science Project Office, Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA), 2-1-1 Sengen, Tsukuba, Ibaraki 305-8505, Japan 5 School of Physics, Faculty of Science, Monash University, Clayton, Victoria 3800, Australia XX-XX-XX; XX-XX-XX ABSTRACT Context. 4U 1538−52, an absorbed high mass X-ray binary with an orbital period of ∼3.73 days, shows moderate orbital intensity modulations with a low level of counts during the eclipse. Sev- eral models have been proposed to explain the accretion at different orbital phases by a spherically arXiv:1507.04274v2 [astro-ph.HE] 18 Jul 2015 symmetric stellar wind from the companion. Aims. The aim of this work is to study both the light curve and orbital phase spectroscopy of this source in the long term. Particularly, the folded light curve and the changes of the spectral parameters with orbital phase to analyse the stellar wind of QV Nor, the mass donor of this binary system. -
Pushing the Limits of the Coronagraphic Occulters on Hubble Space Telescope/Space Telescope Imaging Spectrograph
Pushing the limits of the coronagraphic occulters on Hubble Space Telescope/Space Telescope Imaging Spectrograph John H. Debes Bin Ren Glenn Schneider John H. Debes, Bin Ren, Glenn Schneider, “Pushing the limits of the coronagraphic occulters on Hubble Space Telescope/Space Telescope Imaging Spectrograph,” J. Astron. Telesc. Instrum. Syst. 5(3), 035003 (2019), doi: 10.1117/1.JATIS.5.3.035003. Downloaded From: https://www.spiedigitallibrary.org/journals/Journal-of-Astronomical-Telescopes,-Instruments,-and-Systems on 02 Jul 2019 Terms of Use: https://www.spiedigitallibrary.org/terms-of-use Journal of Astronomical Telescopes, Instruments, and Systems 5(3), 035003 (Jul–Sep 2019) Pushing the limits of the coronagraphic occulters on Hubble Space Telescope/Space Telescope Imaging Spectrograph John H. Debes,a,* Bin Ren,b,c and Glenn Schneiderd aSpace Telescope Science Institute, AURA for ESA, Baltimore, Maryland, United States bJohns Hopkins University, Department of Physics and Astronomy, Baltimore, Maryland, United States cJohns Hopkins University, Department of Applied Mathematics and Statistics, Baltimore, Maryland, United States dUniversity of Arizona, Steward Observatory and the Department of Astronomy, Tucson Arizona, United States Abstract. The Hubble Space Telescope (HST)/Space Telescope Imaging Spectrograph (STIS) contains the only currently operating coronagraph in space that is not trained on the Sun. In an era of extreme-adaptive- optics-fed coronagraphs, and with the possibility of future space-based coronagraphs, we re-evaluate the con- trast performance of the STIS CCD camera. The 50CORON aperture consists of a series of occulting wedges and bars, including the recently commissioned BAR5 occulter. We discuss the latest procedures in obtaining high-contrast imaging of circumstellar disks and faint point sources with STIS. -
IMRE BARTOS Associate Professor of Physics | University of Florida | People.Clas.Ufl.Edu/Imrebartos
IMRE BARTOS Associate Professor of Physics | University of Florida | people.clas.ufl.edu/imrebartos RESEARCH INTEREST Gravitational wave astrophysics, multi-messenger astrophysics, high-energy astroparticle physics, black hole and neutron star evolution and interactions, cosmology. EDUCATION AND TRAINING Columbia University Physics (Szabolcs Marka) PhD 2012 Eotvos University, Hungary Physics Diploma 2006 PROFESSIONAL APPOINTMENTS Associate Professor University of Florida 2021—present Assistant Professor University of Florida 2017—2021 Associate Research Scientist Columbia University 2016—2017 Lecturer in Discipline Columbia University 2012—2016 HONORS AND AWARDS Alfred P. Sloan Foundation Research Fellowship 2020—2022 Excellence Award for Assistant Professors, University of Florida 2020 Columbia Science Fellow, Columbia University 2012—2016 Allan M. Sachs Teaching Award 2011 Columbia Presidential Teaching Award, Finalist 2012 National Science Foundation Highlights 2014 AAS Nova Highlight 2016 5 Favorite Features of the year, Physics World 2018 Brookhaven National Lab Distinguished Lecture 2016 Rising Stars of Science: The Forbes 30 Under 30 (Forbes Magazine) 2012 Summer Undergraduate Research Fellowship, Caltech 2004 As a member of the LIGO Scientific Collaboration: Special Breakthrough Prize in Fundamental Physics 2016 Gruber Cosmology Prize 2016 Princess of Asturias Award for Technical and Scientific Research 2017 Einstein Medal from the Einstein Society in Bern, Switzerland 2017 Bruno Rossi Prize 2017 Science’s Breakthrough of the -
Large-Angle Observatory with Energy Resolution for Synoptic X-Ray Studies (LOBSTER-SXS) ∗ Paul Gorenstein , Harvard-Smithsonian Center for Astrophysics, 60 Garden St
Large-angle OBServaTory with Energy Resolution for Synoptic X-ray Studies (LOBSTER-SXS) ∗ Paul Gorenstein , Harvard-Smithsonian Center for Astrophysics, 60 Garden St. MS-4, Cambridge, MA USA 02138 ABSTRACT The soft X-ray band hosts a larger, more diverse range of variable sources than any other region of the electromagnetic spectrum. They are stars, compact binaries, SMBH’s, the X-ray components of Gamma-Ray Bursts, their X-ray afterglows, and soft X-ray flares from supernova. We describe a concept for a very wide field (~ 4 ster) modular hybrid X-ray telescope system that can measure positions of bursts and fast transients with as good as arc second accuracy, the precision required to identify fainter and increasingly more distant events. The dimensions and materials of all telescope modules are identical. All but two are part of a cylindrical lobster-eye telescope with flat double sided mirrors that focus in one dimension and utilize a coded mask for resolution in the other. Their positioning accuracy is about an arc minute. The two remaining modules are made from the same materials but configured as a Kirkpatrick-Baez telescope with longer focal length that focuses in two dimensions. When pointed it refines the hybrid telescope’s arc minute positions to an arc second and provides larger effective area for spectral and temporal measurements. Above 10 keV the mirrors act as an imaging collimator with positioning capability. For short duration events this hybrid focusing/coded mask system is more sensitive and versatile than either a 2D coded mask or a 2D lobster-eye telescope. -
Kyung Ha Lee
Kyung Ha Lee Phone: +82-31-290-7042, Email: [email protected] Academic Activities Sungkyunkwan University, Department of Physics, Suwon, South Korea Assistant Professor Sep. 2020 – Present Relevant Area of Science: Gravitational Wave Research (LIGO) Stanford University, Applied Physics, California, United States Postdoc in Applied Physics Feb. 2019 – Aug. 2020 Research Group: Ginzton Laboratory, Martin Fejer Group Relevant Area of Science: Gravitational Wave Research (LIGO) University of Glasgow, School of Physics and Astronomy, Glasgow, United Kingdom Ph.D. in Physics Oct. 2014 – Jan. 2019 Research Group: Institute for Gravitational Research (IGR) Relevant Area of Science: Gravitational Wave Research (LIGO) Seoul National University, School of Physics and Astronomy, Seoul, South Korea Researcher Jun. 2012 – May. 2013 Research Group: RENO Collaboration Relevant Area of Science: Neutrino Oscillation Experiment California Institute of Technology (Caltech), Department of Physics, Pasadena, CA. USA B.S. in Physics with Honor Oct. 2007 – Jun. 2011 Relevant Area of Science: Gravitational Wave Research (LIGO) Awards and Scholarship - Scottish Universities Physics Alliance (SUPA) Prize Studentship (2014) o This studentship is for 3.5 years and provides annual maintenance allowance, annual RTSG (Research Training Support Grant), and full cost of university tuition fees. - Thomson Experimental Prize (2017) o This prize was founded in 1869 by William Thomson later created 1st Baron Kelvin. It is awarded on the recommendation of the Professor of Natural -
New Contract Award
TRI-Supported Trial Named Science Magazine’s 2011 “Breakthrough of the Year” Bethesda, Maryland (May 18, 2012): Technical Resources International, Inc. (TRI) is proud to have provided regulatory, safety, and technical support to the Division of AIDS (DAIDS), National Institute of Allergy and Infectious Diseases (NIAID), NIH for the HIV clinical trial that was chosen as the 2011 Breakthrough of the Year by Science Magazine. The NIAID-sponsored HPTN 052 study was an international HIV prevention trial conducted in nine countries. Investigators conducting the study reported that HIV-infected heterosexual individuals who began taking antiretroviral medicines when their immune systems were relatively healthy were 96 percent less likely to transmit the virus to their uninfected partners. Federal officials and the medical community are advocating a ‘treatment-as-prevention’ approach be included as a key component of public health policies due in large part to the results of HPTN 052. They also indicate these findings will have positive implications in domestic and public health in the coming years and even suggest that achieving an end to the HIV/AIDS pandemic is now feasible. About NIAID: NIAID is working to end the HIV/AIDS epidemic by advancing basic knowledge of the pathogenesis and transmission of HIV, supporting the improvement of therapies for HIV infection and its complications, and supporting the development of HIV/AIDS vaccines and other prevention measures. NIAID sponsors Phase I, II, III and IV clinical trials to assess the safety and efficacy of therapeutics, vaccines, and other preventive modalities. Currently, NIAID funds more than 300 HIV/AIDS clinical trials in more than 50 countries at more than 1,000 domestic and international clinical research sites. -
Page 1 of 6 Science/AAAS | Table of Contents: 18 December 2009; 326
Science/AAAS | Table of Contents: 18 December 2009; 326 (5960) Page 1 of 6 Enter Search Term ADVANCED AAAS.ORG FEEDBACK HELP LIBRARIANS Science Magazine NATIONAL SCIENCE AND TECHNOLOGY DEVELOPMENT AGENCY ALERTS | ACCESS RIGHTS | MY ACCOUNT | SIGN IN Science Home Current Issue Previous Issues Science Express Science Products My Science About the Journal Home > Science Magazine > Issue Archive > 2009 > 18 December 2009 ADVERTISEMENT 18 DECEMBER 2009 VOL 326, ISSUE 5960, PAGES 1577-1744 Special Issue Letters Brevia This Week in Science Books et al. Research Articles Editorial Education Forum Reports Editors' Choice Perspectives News of the Week Association Affairs News Focus Front and Back Matter from the Print Issue [PDF] About the Cover ADVERTISEMENT Author Index Subject Index Set E-Mail Alerts Order an Issue/Article RSS Feeds Search the Journal Issue Highlights Enter Keyword 2009 Breakthrough of the Year Silent Hate This issue only Universal Few-Body Binding Home is Where the Hearth Is Special Issue For all checked items Breakthrough of the Year Video: Ardipithecus ramidus Science 18 December 2009: 1598. A video introduction to the year's top science story, featuring scientists C. Owen Lovejoy, Tim White, Giday WoldeGabriel, Yohannes Haile-Selassie, Science contributing correspondent Ann Gibbons, and commentary by paleoanthropologist Andrew Hill. Summary » Full Text » News BREAKTHROUGH OF THE YEAR Ardipithecus ramidus Ann Gibbons Science 18 December 2009: 1598-1599. A rare 4.4-million-year-old skeleton has drawn back the curtain of time to reveal the surprising body plan and ecology of our earliest ancestors. Summary » Full Text » PDF » BREAKTHROUGH OF THE YEAR The Runners-Up The News Staff Science 18 December 2009: 1600-1607. -
Optical Blocking Performance of Ccds Developed for the X-Ray
Optical Blocking Performance of CCDs Developed for the X-ray Astronomy Satellite XRISM Hiroyuki Uchidaa,∗, Takaaki Tanakaa, Yuki Amanoa, Hiromichi Okona, Takeshi G. Tsurua, Hirofumi Nodae,f, Kiyoshi Hayashidae,f, Hironori Matsumotoe,f, Maho Hanaokae, Tomokage Yoneyamae, Koki Okazakie, Kazunori Asakurae, Shotaro Sakumae, Kengo Hattorie, Ayami Ishikurae, Hiroshi Nakajimah, Mariko Saitod, Kumiko K. Nobukawad,b, Hiroshi Tomidag, Yoshiaki Kanemaruc, Jin Satoc, Toshiyuki Takakic, Yuta Teradac, Koji Moric, Hikari Kashimurah, Takayoshi Kohmurai, Kouichi Haginoi, Hiroshi Murakamij, Shogo B. Kobayashik, Yusuke Nishiokac, Makoto Yamauchic, Isamu Hatsukadec, Takashi Sakol, Masayoshi Nobukawal, Yukino Urabem, Junko S. Hiragam, Hideki Uchiyaman, Kazutaka Yamaokao, Masanobu Ozakip, Tadayasu Dotanip,q, Hiroshi Tsunemie, Hisanori Suzukir, Shin-ichiro Takagir, Kenichi Sugimotor, Sho Atsumir, Fumiya Tanakar aDepartment of Physics, Kyoto University, Kitashirakawa Oiwake-cho, Sakyo, Kyoto, Kyoto 606-8502, Japan bDepartment of Physics, Kindai University, 3-4-1 Kowakae, Higashi-Osaka, Osaka 577-8502, Japan cFaculty of Engineering, University of Miyazaki, 1-1 Gakuen Kibanadai Nishi, Miyazaki 889-2192, Japan dDepartment of Physics, Faculty of Science, Nara Women’s University, Kitauoyanishi-machi, Nara, Nara 630-8506, Japan eDepartment of Earth and Space Science, Osaka University, 1-1 Machikaneyama-cho, Toyonaka, Osaka 560-0043, Japan fProject Research Center for Fundamental Sciences, Osaka University, 1-1 Machikaneyama-cho, Toyonaka, Osaka 560-0043, Japan gJapan -
Optical Design of Diffraction-Limited X-Ray Telescopes
Research Article Vol. 59, No. 16 / 1 June 2020 / Applied Optics 4901 Optical design of diffraction-limited x-ray telescopes Brandon D. Chalifoux, Ralf K. Heilmann, Herman L. Marshall, AND Mark L. Schattenburg* Kavli Institute for Astrophysics and Space Research, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, USA *Corresponding author: [email protected] Received 11 March 2020; revised 21 April 2020; accepted 23 April 2020; posted 23 April 2020 (Doc. ID 392479); published 27 May 2020 Astronomical imaging with micro-arcsecond (µas) angular resolution could enable breakthrough scientific discov- eries. Previously proposed µas x-ray imager designs have been interferometers with limited effective collecting area. Here we describe x-ray telescopes achieving diffraction-limited performance over a wide energy band with large effective area, employing a nested-shell architecture with grazing-incidence mirrors, while matching the optical path lengths between all shells. We present two compact nested-shell Wolter Type 2 grazing-incidence telescope designs for diffraction-limited x-ray imaging: a micro-arcsecond telescope design with 14 µas angular resolution and 2.9 m2 of effective area at 5 keV photon energy (λ D 0.25 nm), and a smaller milli-arcsecond telescope design with 525 µas resolution and 645 cm2 effective area at 1 keV (λ D 1.24 nm). We describe how to match the optical path lengths between all shells in a compact mirror assembly and investigate chromatic and off-axis aberrations. Chromatic aberration results from total external reflection off of mirror surfaces, and we greatly mitigate its effects by slightly adjusting the path lengths in each mirror shell. -
An Extremely Powerful Long Lived Superluminal Ejection from the Black Hole MAXI J1820+070
An extremely powerful long lived superluminal ejection from the black hole MAXI J1820+070 J. S. Bright1, R. P. Fender1;2, S. E. Motta1, D. R. A. Williams1, J. Moldon3;4, R. M. Plotkin5;6, J. C. A. Miller-Jones6, I. Heywood1;7;8, E. Tremou9, R. Beswick4, G. R. Sivakoff10, S. Corbel9;11, D. A. H. Buckley12, J. Homan13;14;15, E. Gallo16, A. J. Tetarenko17, T. D. Russell18, D. A. Green19, D. Titterington19, P. A. Woudt2;20, R. P. Armstrong2;1;8, P. J. Groot21;2;12, A. Horesh22, A. J. van der Horst23;24, E. G. Kording¨ 21, V. A. McBride2;12;25, A. Rowlinson18;26 & R. A. M. J. Wijers18 1Astrophysics, Department of Physics, University of Oxford, Keble Road, Oxford, OX1 3RH, UK 2Department of Astronomy, University of Cape Town, Private Bag X3, Rondenbosch, 7701, South Africa 3Instituto de Astrof´ısica de Andaluc´ıa (IAA, CSIC), Glorieta de las Astronom´ıa, s/n, E-18008 Granada, Spain 4Jodrell Bank Centre for Astrophysics, The University of Manchester, M13 9PL, UK 5Department of Physics, University of Nevada, Reno, Nevada, 89557, USA 6International Centre for Radio Astronomy Research, Curtin University, GPO Box, U1987, Perth, WA 6845, Australia 7Department of Physics and Electronics, Rhodes University, PO Box 94, Grahamstown, 6140, South Africa 8South African Radio Astronomy Observatory (SARAO), 2 Fir Street, Observatory, Cape Town, 7925, South Africa 9AIM/CEA Paris-Saclay, Universite` Paris Diderot, CNRS, F-91191 Gif-sur-Yvette, France 1 10Department of Physics, CCIS 4-183, University of Alberta, Edmonton, AB, T6G 2E1, Canada 11Station de Radioastronomie de Nanc¸ay, Observatoire de Paris, PSL Research University, CNRS, Univ. -
Evaluating the Efficiency of Grnas in CRISPR/Cas9 Mediated Genome
International Journal of Molecular Sciences Article Evaluating the Efficiency of gRNAs in CRISPR/Cas9 Mediated Genome Editing in Poplars Tobias Bruegmann * , Khira Deecke and Matthias Fladung * Thuenen Institute of Forest Genetics, Sieker Landstrasse 2, D-22927 Grosshansdorf, Germany * Correspondence: [email protected] (T.B.); matthias.fl[email protected] (M.F.) Received: 21 June 2019; Accepted: 21 July 2019; Published: 24 July 2019 Abstract: CRISPR/Cas9 has become one of the most promising techniques for genome editing in plants and works very well in poplars with an Agrobacterium-mediated transformation system. We selected twelve genes, including SOC1, FUL, and their paralogous genes, four NFP-like genes and TOZ19 for three different research topics. The gRNAs were designed for editing, and, together with a constitutively expressed Cas9 nuclease, transferred either into the poplar hybrid Populus canescens × or into P. tremula. The regenerated lines showed different types of editing and revealed several homozygous editing events which are of special interest in perennial species because of limited back-cross ability. Through a time series, we could show that despite the constitutive expression of the Cas9 nuclease, no secondary editing of the target region occurred. Thus, constitutive Cas9 expression does not seem to pose any risk to additional editing events. Based on various criteria, we obtained evidence for a relationship between the structure of gRNA and the efficiency of gene editing. In particular, the GC content, purine residues in the gRNA end, and the free accessibility of the seed region seemed to be highly important for genome editing in poplars. Based on our findings on nine different poplar genes, efficient gRNAs can be designed for future efficient editing applications in poplars.