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A well written, mind changing book, decent reference material. I might purchased a [[ https://www.amazon.com/s?k=9780674248991&i=stripbooks&linkCode=qs&tag=addallcom-20 | used copy]], even though local libraries have copies. Washington county libraries also have Deep Space (2014), Ripples in Spacetime (2017) and Constellations (2019), and Multnomah County has Galaxies (2019).
History of dark matter
A well written, mind changing book, decent reference material. I might purchase a [[ https://www.amazon.com/s?k=9780674248991&i=stripbooks&linkCode=qs&tag=addallcom-20 | used copy]], even though local libraries have copies. Washington county libraries also have Deep Space (2014), Ripples in Spacetime (2017) and Constellations (2019), and Multnomah County has Galaxies (2019).

History of the idea of dark matter. I haven't yet finished reading the book.

The 900 pound gorilla in the room (so far) is that there is a lot more invisible gravitational mass at the galactic scale than does not interact electromagnetically.

MoreLater
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 .074 Rubin visible from road D-595 (6 km northwest, 3.7km MSL), 100 more km on windy roads
  . ''b
ut'' this way is 240 km and 5.3 hours, only 90 km and 1.7 hours via route 41 from La Florida Airport near La Serena, author travelled to other places on the way
 .074 Rubin visible from road D-595 (6 km northwest, 3.7km MSL), 100 more km on windy roads June 19 from Samo Alto and Pichasca, 30.39°S
  .
travelling for 2019 July 2 eclipse approx 30°S
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 .095 [[ https://www.amazon.com/Search-Matter-Springer-Praxis-Books/dp/0387276165 | In Search of Dark Matter ]] 2006 [[ https://en.wikipedia.org/wiki/Ken_Freeman_(astronomer) | Ken Freeman ]] and Geoff McNamara  .095 [[ https://www.amazon.com/Search-Matter-Springer-Praxis-Books/dp/0387276165 | In Search of Dark Matter ]] 2006 [[ https://en.wikipedia.org/wiki/Ken_Freeman_(astronomer) | Ken Freeman ]] and Geoff !McNamara
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 .104 [[ https://research.rug.nl/files/14512168/bosma.PDF | The distribution and kinematics of neutral hydrogen in spiral galaxies of various morphological types ]] ]] A Bosma - 1978  .104 [[ https://research.rug.nl/files/14512168/bosma.PDF | The distribution and kinematics of neutral hydrogen in spiral galaxies of various morphological types ]] A Bosma - 1978
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 .131 [[ https://en.wikipedia.org/wiki/Weakly_interacting_massive_particle | WIMPs ]] not found by [[ https://en.wikipedia.org/wiki/Large_Hadron_Collider | LHC ]] energies, .p132 at 10 TeV you run out of wiggle room
 [[ https://www.amazon.com/Cosmic-Cocktail-Matter-Science-Essentials/dp/0691153353 | The Cosmic Cocktail ]] [[ https://en.wikipedia.org/wiki/Katherine_Freese | Katherine Freese ]]
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 .131 [[ https://en.wikipedia.org/wiki/Weakly_interacting_massive_particle | WIMPs ]] not found by [[ https://en.wikipedia.org/wiki/Large_Hadron_Collider | LHC ]] energies, p132 at 10 TeV you run out of wiggle room
 .132 [[ https://www.amazon.com/Cosmic-Cocktail-Matter-Science-Essentials/dp/0691153353 | The Cosmic Cocktail ]] [[ https://en.wikipedia.org/wiki/Katherine_Freese | Katherine Freese ]]
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The Elephant in the Universe

Our Hundred-Year Search for Dark Matter

Govert Schilling 2022 Bvtn Lib 523.1126 SCH

A well written, mind changing book, decent reference material. I might purchase a used copy, even though local libraries have copies. Washington county libraries also have Deep Space (2014), Ripples in Spacetime (2017) and Constellations (2019), and Multnomah County has Galaxies (2019).

History of the idea of dark matter. I haven't yet finished reading the book.

The 900 pound gorilla in the room (so far) is that there is a lot more invisible gravitational mass at the galactic scale than does not interact electromagnetically.

MoreLater

ElephantUniverse (last edited 2024-01-25 07:51:28 by KeithLofstrom)