Results 31 to 40 of about 293 (162)

The GALAH Survey: using galactic archaeology to refine our knowledge of TESS target stars [PDF]

, 2021
Jake Clark, Mathieu Clerté, Natalie R. Hinkel, Cayman T. Unterborn, Robert A. Wittenmyer, Jonathan Horner, D. J. Wright, Brad Carter, Timothy D. Morton, L. Spina, M. Asplund, Sven Buder, Joss Bland‐Hawthorn, Andrew R. Casey, Gayandhi De Silva, V. D’Orazi, Ly Duong, Michael Hayden, K. C. Freeman, Janez Kos, Geraint F. Lewis, Jane Lin, K. Lind, Sarah L. Martell, Sanjib Sharma, Jeffrey D. Simpson, D. B. Zucker, T. Zwitter, C. G. Tinney, Yuan-Sen Ting, Thomas Nordlander, A. M. Amarsi   +31 more
openalex   +1 more source

Researchers' data processing descriptions—Understanding paradata creation practices and their underpinning instrumentalities

Journal of the Association for Information Science and Technology, Volume 76, Issue 11, Page 1570-1590, November 2025.
Abstract Researchers increasingly share data, both on their own initiative and as a result of requirements by funding agencies and publishers. For data to be accessible and reusable, it must be understandable. While typical metadata covers rudimentary information about data, data re‐users often need more contextual information, including paradata ...
Isto Huvila, Lisa Andersson, Olle Sköld
wiley   +1 more source

The APO-K2 Catalog. I. ∼7500 Red Giants with Fundamental Stellar Parameters from APOGEE DR17 Spectroscopy and K2-GAP Asteroseismology

The Astronomical Journal
We present a catalog of fundamental stellar properties for ∼7500 evolved stars, including stellar radii and masses, determined from the combination of spectroscopic observations from the Apache Point Observatory Galactic Evolution Experiment, part of the
Jessica Schonhut-Stasik, Joel C. Zinn, Keivan G. Stassun, Marc Pinsonneault, Jennifer A. Johnson, Jack T. Warfield, Dennis Stello, Yvonne Elsworth, Rafael A. García, Savita Mathur, Benoit Mosser, Marc Hon, Jamie Tayar, Guy S. Stringfellow, Rachael L. Beaton, Henrik Jönsson, Dante Minniti   +16 more
doaj   +1 more source

Intermittently Bubbling Well With He‐Rich N2‐Bubbles Constrain the Possibility of Atmospheric and Biogenic N2 Exsolution and the History of He‐Rich Groundwater From Basement to Surface

Geochemistry, Geophysics, Geosystems, Volume 26, Issue 11, November 2025.
Abstract Using Henry's law for di‐nitrogen and simple budget equations, we show theoretically that generating N2 ${\mathrm{N}}_{2}$ bubbles in spring water, by exsolution of atmospheric N2 ${\mathrm{N}}_{2}$ formerly dissolved in recharge water, is possible if the water becomes warm and salty at depth in the basement before rising upward when pressure ...
P. Sarda, E. Léger, A. Courtin, B. Saint‐Bézar, Marc Nizet, A. Battani, M. Moreira, J. Barbarand, B. Brigaud   +8 more
wiley   +1 more source

Disentangling Metallicity Effects in Hot Jupiter Occurrence across Galactic Birth Radius and Phase-space Density

The Astronomical Journal
We explore how the correlation between host star metallicity and giant planets shapes hot Jupiter occurrence as a function of Galactic birth radius ( R _birth ) and phase-space density in the Milky Way disk.
Rayna Rampalli, Melissa K. Ness, Elisabeth R. Newton, Andrew Vanderburg, Tobias Buck, Jessica Mills   +5 more
doaj   +1 more source

Disentangling Stellar Age Estimates from Galactic Chemodynamical Evolution

The Astrophysical Journal, 2023
Stellar ages are key for determining the formation history of the Milky Way, but are difficult to measure precisely. Furthermore, methods that use chemical abundances to infer ages may entangle the intrinsic evolution of stars with the chemodynamical ...
Jeff Shen, Joshua S. Speagle, J. Ted Mackereth, Yuan-Sen Ting, Jo Bovy   +4 more
doaj   +1 more source

‘CELTIC BRITAIN’ IN PRE‐ROMAN ARCHAEOLOGY, RECONSIDERED

Oxford Journal of Archaeology, Volume 44, Issue 4, Page 446-461, November 2025.
Summary For forty years archaeologists have avoided referring to pre‐Roman Britain and its inhabitants as ‘Celtic’ on the grounds that contemporaries never described them as such. This is incorrect. The second‐century BC astronomer Hipparchus quotes Pytheas (c. 320 BC) as having referred to Britons as ‘Keltoi’.
Patrick Sims‐Williams
wiley   +1 more source

Recovery of Daily Water Levels in the Sacramento‐San Joaquin Delta, 1915–2023

Geoscience Data Journal, Volume 12, Issue 4, October 2025.
Newly digitized records of daily maximum and minimum water levels have been recovered from 25 distinct locations across the Sacramento/San Joaquin Delta region, extending the period of record by several decades. Analysing longer records will improve understanding of the processes influencing water levels in this dynamic region. ABSTRACT This manuscript
Serena B. Lee, Steven Dykstra, Reyna Gomez‐Sanchez, Cole Wilkenson, Ricardo Estrada, Nick McGuire, David A. Jay, Stefan A. Talke   +7 more
wiley   +1 more source

The Rise of the r-process in the Gaia-Sausage/Enceladus Dwarf Galaxy

The Astrophysical Journal
Neutron star mergers (NSMs) produce r -process elements after a time-delayed inspiral process. Once a significant number of NSMs are present in a galaxy, r -process elements, such as Eu, are expected to significantly increase with time.
Xiaowei Ou, Alexander P. Ji, Anna Frebel, Rohan P. Naidu, Guilherme Limberg   +4 more
doaj   +1 more source

Cooling Rate Correction in Paleointensity Experiments on Archeological and Geological Materials

Geochemistry, Geophysics, Geosystems, Volume 26, Issue 10, October 2025.
Abstract Obtaining accurate estimates of the absolute intensity of the past geomagnetic field (paleointensity) is one of the major challenges in paleomagnetic research. Paleointensity data are typically determined by replacing the ancient thermoremanent magnetization (TRM) acquired in an unknown field with a laboratory TRM acquired under controlled ...
Ron Shaar
wiley   +1 more source