Results 51 to 60 of about 18,194 (283)

General Relativity Can Prevent a Runaway Greenhouse on Potentially Habitable Planets Orbiting White Dwarfs

open access: yesThe Astrophysical Journal
Planets orbiting in the habitable zones of white dwarfs have recently been proposed as promising targets for biosignature searches. However, since the white dwarf habitable zone resides at 0.01–0.1 au, planets residing there are subject to tidal heating ...
Eva Stafne, Juliette Becker
doaj   +1 more source

Circumstellar Habitable Zones of Binary Star Systems in the Solar Neighborhood

open access: yes, 2012
Binary and multiple systems constitute more than half of the total stellar population in the Solar neighborhood (Kiseleva-Eggleton and Eggleton 2001). Their frequent occurrence as well as the fact that more than 70 (Schneider et al.
Eggl, Siegfried   +4 more
core   +2 more sources

Effects of Extreme Obliquity Variations on the Habitability of Exoplanets [PDF]

open access: yes, 2014
We explore the impact of obliquity variations on planetary habitability in hypothetical systems with high mutual inclination. We show that large amplitude, high frequency obliquity oscillations on Earth-like exoplanets can suppress the ice-albedo ...
Armstrong, J. C.   +5 more
core   +3 more sources

Automated Feature Extraction and Classification of Submerged Cultural Heritage Assets in the Puck Lagoon via Multisensor Remote Sensing

open access: yesArchaeological Prospection, EarlyView.
ABSTRACT This study presents a strong framework for the detection and classification of Submerged Cultural Heritage Assets (SCHA) in shallow marine environments using the integration of multibeam echosounder and airborne LiDAR bathymetry with object‐based image analysis and fuzzy logic–based classification.
Łukasz Janowski   +4 more
wiley   +1 more source

Novel Atmospheric Dynamics Shape the Inner Edge of the Habitable Zone around White Dwarfs

open access: yesThe Astrophysical Journal
White dwarfs offer a unique opportunity to search nearby stellar systems for signs of life, but the habitable zone around these stars is still poorly understood.
Ruizhi Zhan   +2 more
doaj   +1 more source

The Importance of the Upper Atmosphere to CO/O2 Runaway on Habitable Planets Orbiting Low-mass Stars

open access: yesThe Astrophysical Journal Letters, 2023
Efforts to spectrally characterize the atmospheric compositions of temperate terrestrial exoplanets orbiting M dwarf stars with JWST are now underway.
Sukrit Ranjan   +4 more
doaj   +1 more source

The Layout and Size of an Early Pre‐Pottery Neolithic B Small Settlement Revealed by Geophysical Prospection at Harbetsuvan Tepesi in Southeastern Anatolia

open access: yesArchaeological Prospection, EarlyView.
ABSTRACT In Upper Mesopotamia, the transition from the Pre‐Pottery Neolithic A (PPNA) to Pre‐Pottery Neolithic B (PPNB) period, ca. 10 800–10 600 cal. BP, is marked by a series of changes in chipped stone industries, architectural forms, symbolic objects, regional distribution of settlements and long‐distance exchange networks among others.
Toshihiro Tada   +7 more
wiley   +1 more source

No Transits of Proxima Centauri Planets in High-Cadence TESS Data

open access: yesFrontiers in Astronomy and Space Sciences, 2021
Proxima Centauri is our nearest stellar neighbor and one of the most well-studied stars in the sky. In 2016, a planetary companion was detected through radial velocity measurements.
Emily A. Gilbert   +9 more
doaj   +1 more source

Stable and habitable systems with two giant planets

open access: yes, 2010
We have studied planetary systems which are similar to the Solar System and built up from three inner rocky planets (Venus, Earth, Mars) and two outer gas giants.
Batygin K   +5 more
core   +1 more source

Opposing consensus science through scholarly practices: The role of claims maintenance

open access: yesJournal of the Association for Information Science and Technology, EarlyView.
Abstract This study examines how three US‐based communities who oppose consensus science produce and disseminate scholarly‐like artifacts: pro‐life activists, Young Earth Creationists, and Anthropogenic Climate Crisis skeptics. Prior research shows that industry‐ or church‐backed advocacy campaigns often generate claims supported by these communities ...
Irene V. Pasquetto   +3 more
wiley   +1 more source

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