|
" Low frequency radio astronomy and the LOFAR Observatory : "
George Heald, John McKean, Roberto Pizzo, editors.
| Document Type
|
:
|
BL
|
| Record Number
|
:
|
863826
|
| Title & Author
|
:
|
Low frequency radio astronomy and the LOFAR Observatory : : lectures from the Third LOFAR Data Processing School /\ George Heald, John McKean, Roberto Pizzo, editors.
|
| Publication Statement
|
:
|
Cham, Switzerland :: Springer,, [2018]
|
| Series Statement
|
:
|
Astrophysics and space science library
|
| Page. NO
|
:
|
1 online resource
|
| ISBN
|
:
|
331923434X
|
|
|
:
|
: 3319234358
|
|
|
:
|
: 9783319234342
|
|
|
:
|
: 9783319234359
|
|
|
:
|
3319234331
|
|
|
:
|
9783319234335
|
| Bibliographies/Indexes
|
:
|
Includes bibliographical references and index.
|
| Contents
|
:
|
Intro; Preface; Acknowledgements; Contents; Contributors; Acronyms; Part I Introduction to Low-Frequency Radio Astronomy and the LOFAR Telescope; 1 Introduction to Low Frequency Radio Astronomy; 1.1 Historical Context; 1.1.1 Scientific and Technical Background; 1.1.2 A History of Radio Astronomy; 1.1.3 Review of Radio Interferometry; 1.2 Low Frequency Science; 1.2.1 Cosmic Magnetism; 1.2.2 Epoch of Reionization; 1.2.3 High Energy Cosmic Rays; 1.2.4 Solar Physics and Space Weather; 1.2.5 Surveys; 1.2.6 Transients; 1.2.7 Other Topics; 1.3 Low Frequency Radio Facilities; References.
|
|
|
:
|
2 LOFAR Overview2.1 Introduction; 2.2 Antennas; 2.3 Observing Bands; 2.4 Configuration; 2.5 Signal Path and Data Flow; 2.6 COBALT: Central Signal Processing; 2.6.1 Correlator Processing Pipeline; 2.6.2 Tied Array Beam Former Processing Pipeline; 2.7 Phased Array Beam Forming; 2.7.1 Beam Patterns; 2.7.2 Grating Responses; 2.7.3 A Hierarchy of Beams; 2.8 Summary; References; 3 LOFAR Station Processing; 3.1 Antennas; 3.1.1 LBA; 3.1.2 HBA; 3.2 Stations; 3.3 Receiver Unit; 3.3.1 HBA Control Modem; 3.3.2 RCU Modes; 3.4 Digital Processing; 3.4.1 Beamlet Processor (BLP).
|
|
|
:
|
3.4.2 Subband Statistics (SST)3.4.3 Beamlet Statistics (BST); 3.4.4 Crosslet Statistics (XST); 3.5 Station Clock; References; Part II Fundamentals of LOFAR Data Processing; 4 RFI Flagging, Demixing and Visibilities Compression; 4.1 Best Discretization in Time and Frequency; 4.2 Default Preprocessing Pipeline: DPPP; 4.3 Flagging RFI; 4.3.1 Inspecting Data to Spot RFI; 4.3.2 Flagging Ranges of Data (preflagger); 4.3.3 Automatic Flagging Using AOFlagger; 4.4 Removal of Bright Sources; 4.4.1 Smart Demix; 4.4.2 Averaging Data with DPPP; References; 5 Calibration of LOFAR; 5.1 Introduction.
|
|
|
:
|
5.2 The Evolving Playing Field for Imaging and Calibration5.3 From Calibration to Self-Calibration; 5.3.1 The Self-Calibration Philosophy; 5.3.2 Calibration Regimes and Unknowns; 5.3.2.1 Modelling of the Sky; 5.3.2.2 Measurement of Positions; 5.3.2.3 Modelling of the Instrument; 5.4 Flux-Density and Spectral Bandpass Calibration; 5.5 Calibration Procedure; 5.5.1 Black Board Self-Calibration: An Introduction; 5.5.2 Specifying the Sky Model; 5.5.3 Calibration Strategies; 5.5.4 Inspecting and Flagging Solutions; 5.5.5 Direction Dependent Calibration; 5.6 Advanced Calibration Techniques.
|
|
|
:
|
5.6.1 A Facet Calibration Approach5.6.2 A Global Solve Using SAGECal; 5.7 Summary; References; 6 Error Recognition in LOFAR Data; 6.1 Diagnosing Errors in the u, v Plane Compared to the Image Plane; 6.2 Recognising Calibration Errors in the Image Plane; 6.3 Recognising Imaging Errors; 6.4 Wide-Field Imaging Effects; 6.4.1 w-Projection and A-Projection Effects; 6.4.2 Bandwidth-Smearing and Time-Average Smearing; 6.4.3 Sidelobes from Bright Sources in the Field; 6.4.4 Direction Dependent Effects; 6.5 Can You Do Science with It?; References; 7 Ionospheric Effects; 7.1 Introduction.
|
| Abstract
|
:
|
This book presents lecture materials from the Third LOFAR Data School, transformed into a coherent and complete reference book describing the LOFAR design, along with descriptions of primary science cases, data processing techniques, and recipes for data handling. Together with hands-on exercises the chapters, based on the lecture notes, teach fundamentals and practical knowledge. LOFAR is a new and innovative radio telescope operating at low radio frequencies (10-250 MHz) and is the first of a new generation of radio interferometers that are leading the way to the ambitious Square Kilometre Array (SKA) to be built in the next decade. This unique reference guide serves as a primary information source for research groups around the world that seek to make the most of LOFAR data, as well as those who will push these topics forward to the next level with the design, construction, and realization of the SKA. This book will also be useful as supplementary reading material for any astrophysics overview or astrophysical techniques course, particularly those geared towards radio astronomy (and radio astronomy techniques).
|
| Subject
|
:
|
Radio astronomy.
|
| Subject
|
:
|
Astronautics.
|
| Subject
|
:
|
Astronomy, space time.
|
| Subject
|
:
|
Astrophysics.
|
| Subject
|
:
|
Imaging systems technology.
|
| Subject
|
:
|
Mensuration systems of measurement.
|
| Subject
|
:
|
NATURE-- Sky Observation.
|
| Subject
|
:
|
Radio astronomy.
|
| Subject
|
:
|
Relativity physics.
|
| Dewey Classification
|
:
|
522/.682
|
| LC Classification
|
:
|
QB475
|
| Added Entry
|
:
|
Heald, George
|
|
|
:
|
McKean, John
|
|
|
:
|
Pizzo, Roberto
|
| |