Results 81 to 90 of about 2,833,165 (330)
Effect of Local Environment and Stellar Mass on Galaxy Quenching and Morphology at 0.5 < z < 2.0 [PDF]
, 2017 We study galactic star formation activity as a function of environment and stellar mass over 0.5 < z < 2.0 using the FourStar Galaxy Evolution (ZFOURGE) survey.
L. Kawinwanichakij +22 more
semanticscholar +1 more source
The newfound relationship between extrachromosomal DNAs and excised signal circles
FEBS Letters, EarlyView.Extrachromosomal DNAs (ecDNAs) contribute to the progression of many human cancers. In addition, circular DNA by‐products of V(D)J recombination, excised signal circles (ESCs), have roles in cancer progression but have largely been overlooked. In this Review, we explore the roles of ecDNAs and ESCs in cancer development, and highlight why these ...
Dylan Casey, Zeqian Gao, Joan Boyes
wiley +1 more source
The Astrophysical JournalPulsating stars are universally recognized as precise distance indicators and tracers of stellar populations. Their variability, combined with well-defined relationships between pulsation properties and intrinsic evolutionary parameters such as ...
Giulia De Somma +3 more
doaj +1 more source
Painting a family portrait of the yellow super- and hypergiants in the Milky Way
Astronomy & AstrophysicsContext. The distances to evolved massive stars in the Milky Way are poorly constrained by Gaia parallaxes because these stars are bright and variable.
Kasikov A., Mehner A., Kolka I., Aret A.
doaj +1 more source
Deep NIR Surveys in the Galactic Plane: A General Overview and the Study of Scutum’s Spiral Arm
Frontiers in Astronomy and Space Sciences, 2021 Despite the impressive advances in Galactic structure studies, thanks to the large astronomical surveys, there remain several open questions. Although at low distances, optical surveys can bring us important information, the potential of NIR surveys ...
E. B. Amôres, R. S. Levenhagen
doaj +1 more source
Young stellar distance indicators and the extragalactic distance scale
, 2023 Invited review at 2022 RR Lyrae and Cepheids conference on La Palma.
openaire +2 more sources
Distance to the Brick cloud using stellar kinematics
Astronomy & Astrophysics, 2022 Context.The central molecular zone at the Galactic center is currently being studied intensively to understand how star formation proceeds under the extreme conditions of a galactic nucleus. Knowing the position of molecular clouds along the line of sight toward the Galactic center has had important implications in our understanding of the physics of ...
Á. Martínez-Arranz +3 more
openaire +3 more sources
Time-delay cosmographic forecasts with strong lensing and JWST stellar kinematics [PDF]
Monthly notices of the Royal Astronomical Society, 2019 We present a joint strong lensing and stellar dynamical framework for future time-delay cosmography purposes. Based on a pixelated source reconstruction and the axisymmetric Jeans equations, we are capable of constraining cosmological distances and ...
A. Yıldırım, S. Suyu, A. Halkola
semanticscholar +1 more source
In situ molecular organization and heterogeneity of the Legionella Dot/Icm T4SS
FEBS Letters, EarlyView.We present a nearly complete in situ model of the Legionella Dot/Icm type IV secretion system, revealing its central secretion channel and identifying new components. Using cryo‐electron tomography with AI‐based modeling, our work highlights the structure, variability, and mechanism of this complex nanomachine, advancing understanding of bacterial ...
Przemysław Dutka +11 more
wiley +1 more source
EPJ Web of Conferences, 2015 Clusters are excellent test benches for verification and improvement of stellar evolution theory. The recent detection of solar-like oscillations in G-K giants in the open cluster NGC6819 with Kepler provides us with independent constraints on the masses
Lagarde, N +4 more
doaj +1 more source