The Invisible Universe: The Story of Radio Astronomy
Hidden from human view, accessible only to sensitive receivers attached to huge radio telescopes, giant versions of backyard satellite dishes, the invisible universe beyond our senses continues to fascinate and intrigue our imaginations. We cannot really comprehend what it means to say that a galaxy is exploding, yet that is the nature of some of the distant radio sources in the furthest reaches of space. Closer to home, in the Milky Way galaxy, radio astronomers listen patiently to the ticking of pulsars that tell of star death and states of matter of awesome densities. And between the stars, radio emission from a host of over 120 complex molecules radiate outward to reveal a tale about chemical processes that produce the very stuff of life. And all of this happens out there in the universe hidden from our eyes, even when aided by the Hubble Space Telescope. This is the story of radio astronomy, of how radio waves are generated by stars, supernova, quasars, colliding galaxies, and by the very beginnings of the universe itself. In The Invisible Universe, you learn what astronomers are doing with those huge dishes in the New Mexico desert, in a remote valley in Puerto Rico, in the green Pocahontas Valley in West Virginia, as well as dozens of other remote sites around the world. With each of these observatories, the scientists collect and analyze their data, 'listening' to the radio signals from space, in order to learn what is out there, and perhaps even if someone else may be listening as well.
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Review: The Invisible Universe: The Story of Radio AstronomyUser Review - Dane - Goodreads
It was a slow progress through this one, but so good! This book talks mostly about the short history of radio astronomy. But since its history is so short, around 55 years perhaps, the author has ... Read full review
92 A Black Hole and its Accretion Disk
93 Precession of the Accretion Disk
94 Radio Stars
96 Other Superstars
103 The Largest Things in the Universe
105 The Radio Emitting Jets
24 Who Could Have Guessed?
25 Identity Crisis
26 An Epoch of Discovery
The Radio Sun and Planets
33 Solar Radio Emission
36 Radio Signals from the Planets
38 Jupiters Radiation Belts
39 The Planets as Radio Sources
The Galactic Radio Nebulae
42 Recent Guest Stars
43 Cassiopeia A
45 Supernovae and Life
46 Emission NebulaeStar Birth
47 HII Regions
Radio Waves from the Milky Way
53 Grote Reber Maps the Milky Way
55 The Appearance of the Radio Sky
56 Polarization of the Galactic Radio Waves
58 A Note on Distances
510 The Center of the Milky Way
511 Closeup Radio View of the Galactic Center
512 The Very Center and the Black Hole
63 Observations of Interstellar Neutral Hydrogen
65 Seeing into the Depths of Space
66 Anomalous Velocity Hydrogen
68 Neutral Hydrogen in Other Galaxies
72 What is a Molecule?
74 Masers in Space
77 The Stages Immediately Following Star Birth
83 Where are the Pulsars?
84 Formation of Neutron Stars
85 Binary PulsarsNatures Fabulous Space Labs
86 Millisecond Pulsars
87 What Pulse Timing Tells Us?
88 Pulsars in Globular Clusters
The Galactic Superstars
112 Brightness Variations
113 Parent Galaxies
The Modern View
The Grand Unification Active Galactic Nuclei
122 Seyfert Galaxies
124 Faster than LightSuperluminal Motions
125 Active Galactic Nuclei
126 Black Holes
128 Galactic Cannibalism
Beyond the QuasarsRadio Cosmology
132 Radio Astronomy and Cosmology
133 The Microwave Background
134 Beyond the Big BangMultiple Universes
135 How Smooth is Space?
136 Missing Mass Dark Matter?
137 Gravitational Lenses
On The Radio Astronomical Quest For Extraterrestrial Intelligence
142 The Harsh Realities of the SETI EquationA Modern Heresy
Radio Telescopes The Future
151 Bigger and Better
152 LowNoise Receivers
1541 ALMAThe Atacama Large MillimeterSubmillimeter Array
1542 LOFARLow Frequency Array
1543 SKAThe Square Kilometer Array
1544 PAPERPortable Array to Probe the Epoch of Ionization
Whats It All About?
162 Are We Still Open to the Unexpected?
164 So Whats It All About?
A21 Wavelength and Frequency
A24 Spectral Lines
A3 The Brightness of Radio Sources
A7 Astronomical Coordinate Systems
A8 Astronomical DistancesLooking Back in Time
accretion disk antenna appear arcsecond astronomers Big Bang binary black hole bright Chapter clouds cluster constellation core cosmic rays courtesy of NRAO/AUI detect diameter discovered discovery dish distance distant galaxies Doppler earth ejected electrons emitting energy enormous existence explosion extraterrestrial faint filaments frequency galactic center galactic plane galaxies and quasars Green Bank HII regions Image courtesy imagination interstellar invisible universe Jansky Jansky’s jets Jodrell Bank km/s known light-years located Lovell magnetic field masers matter measured Milky million light-years millisecond pulsars molecules motion moving nebula neutron star nonthermal NRAO object observed optical astronomers orbit Orion particles planet plasma polarization produced pulse quasars radar radiation radio astronomy radio emission radio galaxies radio lobes radio signals radio source radio telescope radio waves radiograph receiver redshift scintillation SETI shown in Figure space spectral lines spectrum speed of light spinning supernova remnant temperature thermal velocity wavelength
Page 8 - ... depends on the energy of the particle and the strength of the magnetic field.
Page 7 - As is quite obvious, the actual discovery, that is, the first recording made of galactic radio noise, was purely accidental and no doubt would have been made sooner or later by others. If there is any credit due me, it is probably for a stubborn curiosity that demanded an explanation for the unknown interference and led me to the long series of recordings necessary for the determination of the actual direction of arrival.* *Quoted by WT Sullivan III in Serendipitous Discoveries in Radio Astronomy,...