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| History of the idea of dark matter. 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. | History of the idea of dark matter. 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. ----- '''Breaking News''' This book almost had me convinced, until I read the 13 Dec 2023 issue of Science magazine, with a short article about black holes in giant stars, pointing at a quite-readable article in ''The Astrophysical Journal'', 2023 December 13. [[ https://iopscience.iop.org/article/10.3847/1538-4357/ad04de | Solar Evolution Models with a Central Black Hole ]] by Bellinger et. al. describes stellar evolution when a primordial black hole is trapped inside a star. The black hole's accretion creates Hawking radiation, and it grows slowly but exponentially, shortening the star's lifetime and eventually collapsing it into a stellar-mass black hole. I wonder how this affects the luminosities of nearby newer galaxies versus distant older galaxies, and whether changing galactic luminosity has been misinterpreted as anomalous red shift and dark matter expansion. ------ |
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---- /!\ '''Edit conflict - other version:''' ---- .266 [[ https://en.wikipedia.org/wiki/Dragonfly_Telephoto_Array | Dragonfly Telephoto Array ]] started with eight cameras, currently 48 .267 [[ en.wikipedia.org/wiki/Remote_Astronomical_Society_Observatory_of_New_Mexico | New Mexico Skies Observatory ]] .2xx [[ https://ui.adsabs.harvard.edu/link_gateway/2018Natur.555..629V/EPRINT_PDF | A galaxy lacking dark matter ]] van Dokkum, Pieter ; Danieli, Shany ; Cohen, Yotam .2xx [[ https://ui.adsabs.harvard.edu/link_gateway/2018MPLA...3330004P/EPRINT_PDF | The planes of satellite galaxies problem, suggested solutions, and open questions ]] Pawlowski, Marcel S. .2xx [[ https://ui.adsabs.harvard.edu/link_gateway/2020PhRvD.102g2004A/PUB_HTML | Excess electronic recoil events in XENON1T ]] Aprile, E. et al .2xx [[ https://sci.esa.int/web/euclid | Euclid Mission ]] .3xx [[ https://roman.gsfc.nasa.gov | Nancy Grace Roman Space Telescope ]] ---- /!\ '''Edit conflict - your version:''' ---- |
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| .2xx [[ https://ui.adsabs.harvard.edu/link_gateway/2018Natur.555..629V/EPRINT_PDF | A galaxy lacking dark matter ]] van Dokkum, Pieter ; Danieli, Shany ; Cohen, Yotam .2xx [[ https://ui.adsabs.harvard.edu/link_gateway/2018MPLA...3330004P/EPRINT_PDF | The planes of satellite galaxies problem, suggested solutions, and open questions ]] Pawlowski, Marcel S. .2xx [[ https://ui.adsabs.harvard.edu/link_gateway/2020PhRvD.102g2004A/PUB_HTML | Excess electronic recoil events in XENON1T ]] Aprile, E. et al .2xx [[ https://sci.esa.int/web/euclid | Euclid Mission ]] .3xx [[ https://roman.gsfc.nasa.gov | Nancy Grace Roman Space Telescope ]] ---- /!\ '''End of edit conflict''' ---- |
.270 [[ https://ui.adsabs.harvard.edu/link_gateway/2018Natur.555..629V/EPRINT_PDF | A galaxy lacking dark matter ]] van Dokkum, Pieter ; Danieli, Shany ; Cohen, Yotam .272 [[ https://ui.adsabs.harvard.edu/link_gateway/2018MPLA...3330004P/EPRINT_PDF | The planes of satellite galaxies problem, suggested solutions, and open questions ]] Pawlowski, Marcel S. .297 [[ https://ui.adsabs.harvard.edu/link_gateway/2020PhRvD.102g2004A/PUB_HTML | Excess electronic recoil events in XENON1T ]] Aprile, E. et al .310 [[ https://sci.esa.int/web/euclid | Euclid Mission ]] .312 [[ https://roman.gsfc.nasa.gov | Nancy Grace Roman Space Telescope ]] |
The Elephant in the Universe
Our Hundred-Year Search for Dark Matter
Govert Schilling 2022 Bvtn Lib 523.1126 SCH
( To do: cosmology tutorial https://www.astro.ucla.edu/~wright/cosmo_01.htm )
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. 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.
Breaking News
This book almost had me convinced, until I read the 13 Dec 2023 issue of Science magazine, with a short article about black holes in giant stars, pointing at a quite-readable article in The Astrophysical Journal, 2023 December 13.
Solar Evolution Models with a Central Black Hole by Bellinger et. al. describes stellar evolution when a primordial black hole is trapped inside a star. The black hole's accretion creates Hawking radiation, and it grows slowly but exponentially, shortening the star's lifetime and eventually collapsing it into a stellar-mass black hole.
I wonder how this affects the luminosities of nearby newer galaxies versus distant older galaxies, and whether changing galactic luminosity has been misinterpreted as anomalous red shift and dark matter expansion.
034 (ref) History of dark matter (2018) G Bertone, D Hooper
071 Rubin Observatory LSST Large Synoptic Survey Telescope first light 2023 (book) 2025 wikipedia
- 074 Rubin telescope 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
090 Big Bang Nucleosynthesis Revisited Wagoner 1973
094 Albert Bosma
095 In Search of Dark Matter 2006 Ken Freeman and Geoff McNamara
104 The distribution and kinematics of neutral hydrogen in spiral galaxies of various morphological types A Bosma - 1978
131 WIMPs not found by LHC energies, p132 at 10 TeV you run out of wiggle room
134 IllustrisTNG cosmological magnetohydrodynamical simulations of galaxy formation
168 PSU Library The Dark Matter Problem: A Historical Perspective, Sanders, Robert H.
228 ref 5 The 2dF Galaxy Redshift Survey: power-spectrum analysis of the final data set and cosmological implications ALSO Detection of the Baryon Acoustic Peak in the Large-Scale Correlation Function of SDSS Luminous Red Galaxies
228 ref 5 The 2dF Galaxy Redshift Survey: power-spectrum analysis of the final data set and cosmological implications ALSO Detection of the Baryon Acoustic Peak in the Large-Scale Correlation Function of SDSS Luminous Red Galaxies
258 AMS-02 Alpha magnetic spectrometer attached to ISS by last (extra) shuttle flight, ~600 events per second, measuring antimatter in cosmic rays, P.I. Samuel Ting
- 259 prepared questions for 15 minute talk, instead 90 minute lecture with dozens of slides
- 259 25 years in space, 150 billion cosmic ray particles, a few million positrons, Ting says data provides strong hint of annihilating dark matter, but not proof
265 "missing" satellite dwarf galaxies around Milky Way, found 60, theorists predict at least 500
266 Dragonfly Telephoto Array started with eight cameras, currently 48
270 A galaxy lacking dark matter van Dokkum, Pieter ; Danieli, Shany ; Cohen, Yotam
272 The planes of satellite galaxies problem, suggested solutions, and open questions Pawlowski, Marcel S.
297 Excess electronic recoil events in XENON1T Aprile, E. et al
310 Euclid Mission