Results 81 to 90 of about 106,694 (288)

The Three-phase Evolution of the Milky Way

The Astrophysical Journal
We illustrate the formation and evolution of the Milky Way over cosmic time, utilizing a sample of 10 million red giant stars with full chemodynamical information, including metallicities and α -abundances from low-resolution Gaia XP spectra.
Vedant Chandra, Vadim A. Semenov, Hans-Walter Rix, Charlie Conroy, Ana Bonaca, Rohan P. Naidu, René Andrae, Jiadong Li, Lars Hernquist   +8 more
doaj   +1 more source

The R-Process Alliance: Chemodynamically Tagged Groups. II. An Extended Sample of Halo r-process-enhanced Stars

The Astrophysical Journal, 2023
Orbital characteristics based on Gaia Early Data Release 3 astrometric parameters are analyzed for ∼1700 r -process-enhanced (RPE; [Eu/Fe] > +0.3) metal-poor stars ([Fe/H] ≤ −0.8) compiled from the R -Process Alliance, the GALactic Archaeology with ...
Derek Shank, Timothy C. Beers, Vinicius M. Placco, Dmitrii Gudin, Thomas Catapano, Erika M. Holmbeck, Rana Ezzeddine, Ian U. Roederer, Charli M. Sakari, Anna Frebel, Terese T. Hansen   +10 more
doaj   +1 more source

In silico, in vitro and ex vivo characterization of cystic fibrosis transmembrane conductance regulator pathogenic variants localized in the fourth intracellular loop and their rescue by modulators

British Journal of Pharmacology, EarlyView.
Background and Purpose Cystic fibrosis (CF) is due to loss‐of‐function variants of the CF transmembrane conductance regulator (CFTR) channel. The most effective treatment for people with CF carrying the F508del mutation is the triple combination of elexacaftor–tezacaftor–ivacaftor (ETI).
Emanuela Pesce, Valeria Tomati, Valeria Capurro, Mariateresa Lena, Cristina Pastorino, Miro Astore, Serdar Kuyucak, Benoit Chevalier, Elvira Sondo, Federico Cresta, Alice Dighero, Vito Terlizzi, Cristina Fevola, Stefano Costa, Maria Cristina Lucanto, Valeria Daccò, Laura Claut, Francesca Ficili, Benedetta Fabrizzi, Renata Bocciardi, Federico Zara, Carlo Castellani, Luis J. V. Galietta, Shafagh A. Waters, Alexandre Hinzpeter, Nicoletta Pedemonte   +25 more
wiley   +1 more source

Sagittarius: The Nearest Dwarf Galaxy [PDF]

, 1995
We have discovered a new Galactic satellite galaxy in the constellation of Sagittarius. The Sagittarius dwarf galaxy is the nearest galaxy known, subtends an angle of $> 10$ degrees on the sky, lies at a distance of $24 \kpc$ from the Sun, $\sim 16 \kpc$
Gilmore, G., Ibata, Rodrigo, Irwin, M. J.   +2 more
core   +2 more sources

Four-hundred Very Metal-poor Stars Studied with LAMOST and Subaru. III. Dynamically Tagged Groups and Chemodynamical Properties

The Astrophysical Journal
Very metal-poor (VMP) stars record the signatures of early accreted galaxies, making them essential tools for unraveling the early stages of Galaxy formation.
Ruizhi Zhang, Tadafumi Matsuno, Haining Li, Wako Aoki, Xiang-Xiang Xue, Takuma Suda, Gang Zhao, Yuqin Chen, Miho N. Ishigaki, Jianrong Shi, Qianfan Xing, Jingkun Zhao   +11 more
doaj   +1 more source

Estimating gas accretion in disc galaxies using the Kennicutt-Schmidt law [PDF]

, 2012
We show how the existence of a relation between the star formation rate and the gas density, i.e. the Kennicutt-Schmidt law, implies a continuous accretion of fresh gas from the environment into the discs of spiral galaxies. We present a method to derive
Aumer, Bauermeister, Bell, Bigiel, Binney, Binney, Binney, Binney, Bland-Hawthorn, Boissier, Boissier, Brinchmann, Cappellari, Case, Chabrier, Chiappini, Chiappini, Cignoni, Collins, Dehnen, Dekel, Diehl, Filippo Fraternali, Fraternali, Fraternali, Fraternali, Gogarten, Harris, Haywood, Hopkins, Hopkins, Hopkins, Jorgenson, Kalberla, Kaufmann, Kaufmann, Kennicutt, Kennicutt, Kennicutt, Kennicutt, Kennicutt, Kroupa, Krumholz, Krumholz, Lah, Lehner, Leroy, Lyne, Maeder, Maller, Marinacci, Marinacci, Matteo Tomassetti, Matteucci, Minchev, Murray, Naab, Nakanishi, Nipoti, Pagel, Panter, Peek, Peek, Piontek, Prantzos, Rocha-Pinto, Roychowdhury, Roškar, Sancisi, Scalo, Schaye, Schmidt, Searle, Sellwood, Thom, Tinsley, Tinsley, Tosi, Tosi, Twarog, van de Voort, Vincoletto, Walter, Weisz, Wyder, Zwaan   +85 more
core   +2 more sources

A Galactic Self-portrait: Density Structure and Integrated Properties of the Milky Way Disk

The Astrophysical Journal
The evolutionary history of the Milky Way disk is imprinted in the ages, positions, and chemical compositions of individual stars. In this study, we derive the intrinsic density distribution of different stellar populations using the final data release ...
Julie Imig, Jon A. Holtzman, Gail Zasowski, Jianhui Lian, Nicholas F. Boardman, Alexander Stone-Martinez, J. Ted Mackereth, Moire K. M. Prescott, Rachael L. Beaton, Timothy C. Beers, Dmitry Bizyaev, Michael R. Blanton, Katia Cunha, José G. Fernández-Trincado, Catherine E. Fielder, Sten Hasselquist, Christian R. Hayes, Misha Haywood, Henrik Jönsson, Richard R. Lane, Steven R. Majewski, Szabolcs Mészáros, Ivan Minchev, David L. Nidever, Christian Nitschelm, Jennifer Sobeck   +25 more
doaj   +1 more source

Spaceborne and spaceborn: Physiological aspects of pregnancy and birth during interplanetary flight

Experimental Physiology, EarlyView.
Abstract Crewed interplanetary return missions that are on the planning horizon will take years, more than enough time for initiation and completion of a pregnancy. Pregnancy is viewed as a sequence of processes – fertilization, blastocyst formation, implantation, gastrulation, placentation, organogenesis, gross morphogenesis, birth and neonatal ...
Arun V. Holden
wiley   +1 more source

Probing the Mass Fraction of MACHOs in Extragalactic Halos [PDF]

, 1997
Current microlensing searches calibrate the mass fraction of the Milky Way halo which is in the form of Massive Compact Halo Objects (MACHOs). We show that surveys like the Sloan Digital Sky Survey (SDSS) can probe the same quantity in halos of distant ...
Abraham Loeb, Ansari R., Bartelmann M., Dalcanton J. J., Laor A., Rosalba Perna, Schneider P., Tully R. B.   +7 more
core   +2 more sources

HALO7D. III. Chemical Abundances of Milky Way Halo Stars from Medium-resolution Spectra

The Astrophysical Journal, 2023
The Halo Assembly in Lambda Cold Dark Matter: Observations in 7 Dimensions (HALO7D) survey measures the kinematics and chemical properties of stars in the Milky Way (MW) stellar halo to learn about the formation of our Galaxy.
Kevin A. McKinnon, Emily C. Cunningham, Constance M. Rockosi, Puragra Guhathakurta, Ivanna Escala, Evan N. Kirby, Alis J. Deason   +6 more
doaj   +1 more source