November 2025 – Page 20 – My WordPress Site

Illustration of the behaviour of the CARMENES visible channel CRX for the mid-M dwarf EV Lac. Top Left: Variation of RV as a function of wavelength (spacing is logarithmic). The CRX-index is the slope of RV vs log(λ) for each spectrum. A total of 10 CARMENES spectra are shown covering approximately one stellar rotation. The upper and lower boundaries are the fits to the most positive and negative RV values. Top right: The CRX-gradient, illustrating the CRX-index as a function of mean RV. Bottom Left and Bottom Right: CRX vs rotation phase and RV vs rotation phase illustrating the anti-correlation of CRX-index (i.e. the negative CRX-gradient shown in the top right panel). The plotted points in each panel are colour coded according to stellar rotation phase. -- astro-ph.EP

Astronomy & Telescopes, Exoplanets, -moons, -comets, Habitable Zones, Imaging & Spectroscopy, Water/Hycean Worlds & Oceanography

The CARMENES Search For Exoplanets Around M dwarfs: Understanding The Wavelength Dependence Of Radial Velocity Measurements

by Keith CowingNovember 3, 2025November 3, 2025

UT Austin Habitability Prize

Career Opportunities, Education and Outreach, Habitable Zones

UT Austin Habitability Prize Postdoctoral Fellowship

by Keith CowingNovember 3, 2025

In this image from Cassini, backlighting from the Sun spectacularly illuminates Enceladus' jets of water ice. NASA/JPL-Caltech/SSI

Astrochemistry, Astrogeology, Biochemistry & Organic Chemistry, Biosignatures & Paleobiology, Enceladus, Habitable Zones, Icy Worlds, Video, Audio, Webcasts, Podcasts

Europlanet Webinar: Cassini Detects Organic Compounds in the Fresh Plume of Enceladus

by Keith CowingNovember 3, 2025November 3, 2025

A possible Focal Plane dedicated instrument for HWO. Upper left panel: HWO telescope configuration for Exploratory Architecture Concepts) EAC1. Upper right panel : location of the focal plane and the detectur Calibration unit in the EAC1 case. Bottom left panel : location of the focal plane and the detector Calibration unit in the EAC3 case. Bottom right panel : possible focal plane concept with 4 GigaPyx 220M detectors and a central GigaPyx 14M detector. -- astro-ph.IM

Astronomy & Telescopes, Exoplanets, -moons, -comets, Gaia Mission, Habitable Zones, Imaging & Spectroscopy, Stellar Cartography

Very High Precision Astrometry for Exoplanets and Dark Matter with the Habitable Worlds Observatory

by Keith CowingNovember 2, 2025November 2, 2025

Solar forcing approximation in the SCION model. (a) Comparison of solar insolation at 65°N with air temperature variations over 40–80°N in the past 1,500–2,450 kyr. (b) A cross plot of solar insolation at 65°N with the air temperatures. (c) Insolation-induced air temperature 2D deviation stacks in the revised SCION model schematic diagram. -- Geophysical Research Letters

Atmospheres, Climate, Weather, Biogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Fossils & Paleontology, Gaia - Planetary Perspectives, Origin & Evolution of Life

Orbitally-Driven Nutrient Pulses Linked to Early Cambrian Periodic Oxygenation and Animal Radiation

by Keith CowingNovember 2, 2025November 2, 2025

Workshop on Ices in the Solar System

Astrochemistry, Astrogeology, Comets and Asteroids, Conferences and Meetings, Icy Worlds

Abstract Submission Deadline Extension Second Workshop on Ices in the Solar System

by Keith CowingNovember 2, 2025November 2, 2025

VEXAG

Astrogeology, Conferences and Meetings, Exploration Gear & Tech, Missions & Hardware, Venus

Adjustment to Meeting Dates Venus Exploration Analysis Group (VEXAG) Meeting

by Keith CowingNovember 2, 2025November 2, 2025

Enriching the Universe: From Primordial Nucleosynthesis to Exoplanet Atmospheres

Astrochemistry, Astronomy & Telescopes, Conferences and Meetings, Imaging & Spectroscopy, Interstellar

Hubble and Webb “Enriching the Universe: From Primordial Nucleosynthesis to Exoplanet Atmospheres” Conference

by Keith CowingNovember 2, 2025November 2, 2025