Results 31 to 40 of about 242,935 (158)

The role of siliciclastics in carbonate fabric diversity and preservation: A case study from the Neoproterozoic carbonate − siliciclastic Horse Thief Springs Formation, Death Valley

Sedimentology, Volume 69, Issue 5, Page 2284-2318, August 2022., 2022
Abstract The sedimentary record of the Pahrump Group in Death Valley comprises well‐exposed successions of mixed carbonate and siliciclastic deposits. Despite the abundance of studies focussing on the depositional dynamics of mixed carbonate – siliciclastic deposition in the Phanerozoic, the record of similar Proterozoic examples is comparatively ...
Daniel Smrzka, Kristian Kuzel, Domenico Chiarella, Michael M. Joachimski, Thomas M. Vandyk, Christoph Kettler, Dan P. Le Heron, Stephen Lokier   +7 more
wiley   +1 more source

Dynamical models of two lenticular galaxies: NGC 1023 and NGC 4526 [PDF]

Serbian Astronomical Journal, 2017
We study kinematics and dynamics of two lenticular galaxies that possess globular clusters (GCs) which extend beyond approximately seven effective radii. We analyze two nearby lenticular galaxies, NGC 1023 and NGC 4526, based on their GCs. We extract the
Samurović S.
doaj   +1 more source

Formation of Magnesium Carbonates on Earth and Implications for Mars

Journal of Geophysical Research: Planets, Volume 126, Issue 7, July 2021., 2021
Abstract Magnesium carbonates have been identified within the landing site of the Perseverance rover mission. This study reviews terrestrial analog environments and textural, mineral assemblage, isotopic, and elemental analyses that have been applied to establish formation conditions of magnesium carbonates.
Eva L. Scheller, Carl Swindle, John Grotzinger, Holly Barnhart, Surjyendu Bhattacharjee, Bethany L. Ehlmann, Ken Farley, Woodward W. Fischer, Rebecca Greenberger, Miquela Ingalls, Peter E. Martin, Daniela Osorio‐Rodriguez, Ben P. Smith   +12 more
wiley   +1 more source

The Effect of Superpositions on the Planetary Nebula Luminosity Function

The Astrophysical Journal, 2023
Planetary nebula (PN) surveys in systems beyond ∼10 Mpc often find high-excitation, point-like sources with [O iii ] λ 5007 fluxes greater than the apparent bright-end cutoff of the planetary nebula luminosity function (PNLF).
Owen Chase, Robin Ciardullo, Martin M. Roth, George H. Jacoby   +3 more
doaj   +1 more source

Hidden Imprints of Minor Merging in Early-Type Galaxies: Inner Polar Rings and Inclined Large-Scale Gaseous Disks In S0s

Galaxies, 2015
I discuss my latest observational data and ideas about decoupled gaseous subsystems in nearby lenticular galaxies. As an extreme case of inclined gaseous disks, I demonstrate a sample of inner polar disks, derive their incidence, about 10% among the ...
Olga Sil’chenko
doaj   +1 more source

Evidence for a Diagenetic Origin of Vera Rubin Ridge, Gale Crater, Mars: Summary and Synthesis of Curiosity's Exploration Campaign

Journal of Geophysical Research: Planets, Volume 125, Issue 12, December 2020., 2020
Abstract This paper provides an overview of the Curiosity rover's exploration at Vera Rubin ridge (VRR) and summarizes the science results. VRR is a distinct geomorphic feature on lower Aeolis Mons (informally known as Mount Sharp) that was identified in orbital data based on its distinct texture, topographic expression, and association with a hematite
A. A. Fraeman, L. A. Edgar, E. B. Rampe, L. M. Thompson, J. Frydenvang, C. M. Fedo, J. G. Catalano, W. E. Dietrich, T. S. J. Gabriel, A. R. Vasavada, J. P. Grotzinger, J. L'Haridon, N. Mangold, V. Z. Sun, C. H. House, A. B. Bryk, C. Hardgrove, S. Czarnecki, K. M. Stack, R. V. Morris, R. E. Arvidson, S. G. Banham, K. A. Bennett, J. C. Bridges, C. S. Edwards, W. W. Fischer, V. K. Fox, S. Gupta, B. H. N. Horgan, S. R. Jacob, J. R. Johnson, S. S. Johnson, D. M. Rubin, M. R. Salvatore, S. P. Schwenzer, K. L. Siebach, N. T. Stein, S. M. R. Turner, D. F. Wellington, R. C. Wiens, A. J. Williams, G. David, G. M. Wong   +42 more
wiley   +1 more source

Combining stellar populations with orbit-superposition dynamical modelling: the formation history of the lenticular galaxy NGC 3115 [PDF]

Monthly notices of the Royal Astronomical Society, 2019
We present a combination of the Schwarzschild orbit-superposition dynamical modelling technique with the spatially resolved mean stellar age and metallicity maps to uncover the formation history of galaxies.
A. Poci, R. McDermid, Ling Zhu, G. van de Ven   +3 more
semanticscholar   +1 more source

Lack of FIBRILLIN6 in Arabidopsis thaliana affects light acclimation and sulfate metabolism

New Phytologist, Volume 225, Issue 4, Page 1715-1731, February 2020., 2020
Summary Arabidopsis thaliana contains 13 fibrillins (FBNs), which are all localized to chloroplasts. FBN1 and FBN2 are involved in photoprotection of photosystem II, and FBN4 and FBN5 are thought to be involved in plastoquinone transport and biosynthesis, respectively. The functions of the other FBNs remain largely unknown.
Kwanuk Lee, Martin Lehmann, Melanie V. Paul, Liangsheng Wang, Manja Luckner, Gerhard Wanner, Peter Geigenberger, Dario Leister, Tatjana Kleine   +8 more
wiley   +1 more source

Kilonova Emission and Heavy Element Nucleosynthesis

Universe, 2023
The binary neutron star merger observed and localized on 17 August 2017 by the LIGO and Virgo gravitational interferometers and by numerous telescopes on the ground and in orbit linked in an unambiguous way the coalescence of double neutron stars with ...
Elena Pian
doaj   +1 more source

Measuring the mass of the supermassive black hole of the lenticular galaxy NGC 4546 [PDF]

, 2020
Most galaxies with a well-structured bulge host a supermassive black hole (SMBH) in their centre. Stellar kinematics models applied to adaptive optics (AO) assisted integral field unit observations are well-suited to measure the SMBH mass ($M_{BH}$) and ...
T. Ricci, J. Steiner
semanticscholar   +1 more source