The ultraviolet absorbance spectrum of coliform bacteria and its relationship to astronomy

Hoyle, F.; Wickramasinghe, N. C.; Jansz, E.R.; Jayatissa, Perera M.

doi:10.1007/bf00661179

Cited by 8 publications

(1 citation statement)

References 2 publications

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“…In the modern era of astrophysics, the concept of panspermia was famously embraced and developed by F. Hoyle and C. Wickramasinghe after the discovery of organic compounds in the interstellar medium (e.g., Hoyle & Wickramasinghe 1977, 1978Hoyle et al 1983Hoyle et al , 1986. Although never gaining widespread acceptance, likely due to a combination of practical and ideological factors (i.e., long odds and a perceived non-necessity in explaining our world), panspermia has been the subject of a steady number of studies since then.…”

Section: Introductionmentioning

confidence: 99%

Panspermia in a Milky Way-like Galaxy

Gobat,

Hong,

Snaith

et al. 2021

Preprint

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We study the process of panspermia in Milky Way-like galaxies by modeling the probability of successful travel of organic compounds between stars harboring potentially habitable planets. To this end, we apply the modified habitability recipe of Gobat & Hong (2016) to a model galaxy from the MUGS suite of zoom-in cosmological simulations. We find that, unlike habitability, which only occupies narrow dynamic range over the entire galaxy, the panspermia probability can vary be orders of magnitude between the inner (R, b = 1 − 4 kpc) and outer disk. However, only a small fraction of star particles have very large values of panspermia probability and, consequently, the fraction of star particles where the panspermia process is more effective than prebiotic evolution is much lower than from naïve expectations based on the ratio between panspermia probability and natural habitability.

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Section: Introductionmentioning

confidence: 99%