Results 1 to 10 of about 9,582 (206)
Yellow Supergiants and Post-red Supergiant Evolution in the Large Magellanic Cloud
The Astronomical Journal, 2023 The empirical evidence for an upper-mass limit for the red supergiant (RSG) progenitors of the Type II-P SNe at about 18 MSun, raises questions about the fate of the most luminous, most massive RSGs.
Roberta M. Humphreys +2 more
doaj +3 more sources
The Astrophysical Journal, 2023 Characterizing the physical properties of cool supergiants allows us to probe the final stages of a massive star’s evolution before it undergoes core collapse. Despite their importance, the fundamental properties of these stars— $\mathrm{log}{T}_{\mathrm{
Trevor Z. Dorn-Wallenstein +2 more
doaj +1 more source
Geophysical Research Letters, Volume 50, Issue 18, 28 September 2023., 2023 Abstract Giant icebergs release cold, fresh meltwater as they drift, perturbing the physical conditions of the surface ocean. This study uses satellite‐derived sea surface salinity and temperature measurements to explore the physical impact of supergiant iceberg A68A between September 2020 and June 2021.
R. M. Smith, G. R. Bigg
wiley +1 more source
Giant breast phyllodes tumor with silent thromboembolism: A case report
Cancer Reports, Volume 6, Issue 9, September 2023., 2023 Abstract Background Phyllodes tumor (PT) is a solid fibroepithelial breast lesion with proliferation of stromal and epithelial elements, usually presents with a rapidly expanding feature. Venous thromboembolism (VTE) have been reported to increase the burden in terms of mortality and morbidity of malignant tumor, and associate with worsened survival ...
Qinbo Wang +4 more
wiley +1 more source
First Observations With a GNSS Antenna to Radio Telescope Interferometer
Radio Science, Volume 58, Issue 8, August 2023., 2023 Abstract We describe the design of a radio interferometer composed of a Global Navigation Satellite Systems (GNSS) antenna and a Very Long Baseline Interferometry radio telescope. Our eventual goal is to use this interferometer for geodetic applications including local tie measurements.
J. Skeens +7 more
wiley +1 more source
Burial and Denudation Alter Microbial Life at the Bottom of the Hypo‐Critical Zone
Geochemistry, Geophysics, Geosystems, Volume 24, Issue 6, June 2023., 2023 Abstract How subsurface microbial life changed at the bottom of the kilometers‐deep (hypo) Critical Zone in response to evolving surface conditions over geologic time is an open question. This study investigates the burial and exhumation, biodegradation, and fluid circulation history of hydrocarbon reservoirs across the Colorado Plateau as a window ...
Jennifer McIntosh +8 more
wiley +1 more source
A Census of the Most Luminous Stars. I. The Upper HR Diagram for the Large Magellanic Cloud
The Astronomical Journal, 2023 Spectral classification and multiwavelength photometry for the most luminous stars in the LMC has greatly increased due to several recent surveys for both the hottest and coolest members.
John C. Martin, Roberta M. Humphreys
doaj +1 more source
Geochemistry, Geophysics, Geosystems, Volume 23, Issue 8, August 2022., 2022 Abstract Extensive regions of yellow and white (“bleached”) sandstones within the terrestrial Jurassic red bed deposits of the Colorado Plateau reflect widespread interaction with subsurface reduced fluids which resulted in the dissolution of iron‐oxide grain coatings.
Lydia R. Bailey +3 more
wiley +1 more source
The Depositional Record, Volume 8, Issue 1, Page 292-316, February 2022., 2022 Applying an integrated methodology, including petrography, mercury injection capillary pressure (MICP), laboratory nuclear magnetic resonance (NMR) and X‐ray computed tomography (XCT), on continental spring carbonate reservoir analogue samples is a prerequisite to understanding plug scale porosity and permeability heterogeneities.
Jeroen Soete +8 more
wiley +1 more source
Controversial Issues of Hydrocarbon Field Formation and the Role of Geomagnetic Fields
International Journal of Geophysics, Volume 2022, Issue 1, 2022., 2022 This review paper presents controversial issues on the formation of hydrocarbon deposits. We look into the geological contradictions of the abiogenic and biogenic theories of petroleum origin, indicating the connection between hydrocarbon deposits and disjunctive dislocations, as well as present disputes about the geological period over which ...
Andrey A. Ponomarev +6 more
wiley +1 more source