biophysics – Page 12 – My WordPress Site

Top, Upper Panels: Individual visit transmission spectra for ExoTiC-JEDI (left, purples) and Eureka! (right, greens). Lower Panel: Difference between individual visit transmission spectra for ExoTiC-JEDI (left) and Eureka! (right). On average, the ExoTiC-JEDI reductions for visit 1 and visit 2 are consistent to within 39 ppm, while the Eureka! reductions agree to within 48 ppm. The ExoTiC-JEDI and Eureka! reductions are consistent with each other to within the median transit depth uncertainty for both visit 1 and visit 2. Bottom, Upper Panel: Weighted average transmission spectrum from the two visits from the ExoTiC-JEDI (purple) and Eureka! (light green) reductions and joint fit transmission spectrum from the Eureka! reduction (dark green). Lower Panel: Difference between each of the combined ExoTiC-JEDI and Eureka! transmission spectra in ppm. As the difference between the two Eureka! methods is less the 5 ppm (black line), the two ExoTiC-JEDI– Eureka! lines are difficult to distinguish (coloured lines). On average, the combined visit Eureka! and ExoTiC-JEDI spectra are consistent to within 10 ppm. -- astro-ph.EP

Biogeochemical Cycles & Geobiology, Biophysics, Biosignatures & Paleobiology, Extremeophiles and Extreme Environments

How Geobiological Feedback Makes Some Yellowstone Hydrothermal Pools Acidic

by Keith CowingMay 24, 2023May 25, 2023

1-dimensional cross-section of a possible ocean of TOI-270 d. This corresponds to a case with ocean depth 443 km. The maximum ocean depth on Earth is shown as a dashed line, at 11 km. -- astro-ph.EP

Life Forms On Our Planet Prefer Small And Very Large Sizes

by Keith CowingMarch 29, 2023March 29, 2023

The Next Everest

Biochemistry & Organic Chemistry, Biophysics, Genomics, Proteomics, Bioinformatics, Origin & Evolution of Life

Self-Assembling Proteins Can Store Cellular “Memories”

by Keith CowingJanuary 3, 2023January 3, 2023

Biochemistry & Organic Chemistry, Biophysics, Origin & Evolution of Life

The Thermodynamics Of Life Taking Shape

by Keith CowingSeptember 12, 2022September 12, 2022

The black line is the observed spectrum of WISE 035934.06-540154.6 from Beiler et al. (2023). Black points represent their photometric measurements. The pink line and dots are the best fit Sonora model spectrum and photometry, from Beiler et al. The blue line and data points are the spectrum and photometry from the best fit model of the ATMO2020++ grid. The green line is the same model where PH3 has been removed from the atmospheric composition. The ATMO2020++ model is scaled by the known distance to WISE 0359 (Kirkpatrick et al. 2021) and the radius inferred from evolutionary models (Marley et al. 2021), and has not been scaled to fit. Principal opacity species are indicated. The lower panel shows the difference between the observed spectrum and the spectra generated by the three models (note the difference in y-axis scale in the upper and lower panels). The inset shows the near-infrared flux region. See Section 3 for discussion. -- astro-ph.SR

Analog Studies, Away Teams & Field Reports, Biochemistry & Organic Chemistry, Biophysics, Cryobiology, Extremeophiles and Extreme Environments

New NSF-Funded Institute Will Probe Biology In The Absence Of Water

by Keith CowingAugust 30, 2022August 30, 2022

Astrochemistry, Biophysics, Genomics, Proteomics, Bioinformatics

Quantum Mechanics Could Explain Why DNA Can Spontaneously Mutate

by Keith CowingMay 9, 2022August 15, 2022

Structural Similarity In Both Human Cells And Neutron Stars

by Keith CowingNovember 3, 2016