Results 61 to 70 of about 154,036 (328)

Galactic Chemical Evolution Models Favor an Extended Type Ia Supernova Delay-time Distribution

The Astrophysical Journal
Type Ia supernovae (SNe Ia) produce most of the Fe-peak elements in the Universe and therefore are a crucial ingredient in galactic chemical evolution models.
Liam O. Dubay, Jennifer A. Johnson, James W. Johnson   +2 more
doaj   +1 more source

IceCube detects high-energy neutrinos from within the Milky Way [PDF]

, 2023
Keith Cooper
openalex   +1 more source

The incorrect rotation curve of the Milky Way

, 2015
In the fundamental quest of the rotation curve of the Milky Way, the tangent-point (TP) method has long been the simplest way to infer velocities for the inner, low latitude regions of the Galactic disk from observations of the gas component. We test the
Chemin, Laurent, Renaud, Florent, Soubiran, Caroline   +2 more
core   +3 more sources

Liquid biopsy epigenetics: establishing a molecular profile based on cell‐free DNA

Molecular Oncology, EarlyView.
Cell‐free DNA (cfDNA) fragments in plasma from cancer patients carry epigenetic signatures reflecting their cells of origin. These epigenetic features include DNA methylation, nucleosome modifications, and variations in fragmentation. This review describes the biological properties of each feature and explores optimal strategies for harnessing cfDNA ...
Christoffer Trier Maansson, Anders Lade Nielsen, Boe Sandahl Sorensen   +2 more
wiley   +1 more source

He Awa Whiria: The Tidal Streams of Interstellar Objects

The Astrophysical Journal
Upcoming surveys are likely to discover a new sample of interstellar objects (ISOs) within the solar system, but questions remain about the origin and distribution of this population within the Galaxy.
John C. Forbes, Michele T. Bannister, Chris Lintott, Angus Forrest, Simon Portegies Zwart, Rosemary C. Dorsey, Leah Albrow, Matthew J. Hopkins   +7 more
doaj   +1 more source

The infant Milky Way [PDF]

, 2012
We investigate the physical properties of the progenitors of today living Milky Way-like galaxies that are visible as Damped Lya Absorption systems and Lya Emitters at higher redshifts (z ~ 2.3,5.7).
Ferrara, Andrea, Salvadori, Stefania
core   +3 more sources

Abundance Gradients and the Formation of the Milky Way [PDF]

, 2001
In this paper we adopt a chemical evolution model, which is an improved version of the Chiappini, Matteucci and Gratton (1997) model, assuming two main accretion episodes for the formation of the Galaxy.
Carigi L., Chang R. X., Creze M., Cristina Chiappini, Donatella Romano, Esteban C., Fitzsimmons A., Flynn C., Francesca Matteucci, Friel E. D., Friel E. D., Fuhrmann K., Gerritsen J. P. E., Goswami A., Gratton R., Guibert J., Gummersbach C. A., Hensler G., Hou J. L., Kaufer A., Kilian-Montenbruck J., Larson R. B., Lyne A. G., Maciel W. J., Maciel W. J., Maciel W. J., Matteucci F., Matteucci F., Mera D., Pagel B. E. J., Pagel B. E. J., Portinari L., Portinari L., Portinari L., Renzini A., Scalo J. M., Shaver P. A., Tosi M., Tsujimoto T., Twarog B. A., Vilchez J. M.   +40 more
core   +2 more sources

Cytoplasmic p21 promotes stemness of colon cancer cells via activation of the NFκB pathway

Molecular Oncology, EarlyView.
Cytoplasmic p21 promotes colorectal cancer stem cell (CSC) features by destabilizing the NFκB–IκB complex, activating NFκB signaling, and upregulating BCL‐xL and COX2. In contrast to nuclear p21, cytoplasmic p21 enhances spheroid formation and stemness transcription factor CD133.
Arnatchai Maiuthed, Kerstin Huebner, Katharina Erlenbach‐Wuensch, Chuanpit Hampel, Daniela Thalheim, Adriana Vial‐Roehe, Bodee Nutho, Susanne Merkel, Arndt Hartmann, Pithi Chanvorachote, Regine Schneider‐Stock   +10 more
wiley   +1 more source

The Milky Way Is a Less Massive Galaxy—New Estimates of the Milky Way’s Local and Global Stellar Masses

The Astrophysical Journal Letters
Stellar mass is the most fundamental property of a galaxy. While it has been robustly measured for millions of external galaxies, it remains poorly constrained for the Milky Way because of the strong selection effect from our inside perspective.
Jianhui Lian, Tao Wang, Qikang Feng, Yang Huang, Helong Guo   +4 more
doaj   +1 more source

Predicting the locations of possible long-lived low-mass first stars: Importance of satellite dwarf galaxies

, 2017
The search for metal-free stars has so far been unsuccessful, proving that if there are surviving stars from the first generation, they are rare, they have been polluted, or we have been looking in the wrong place.
Agarwal, Bhaskar, Frebel, Anna, Glover, Simon C. O., Griffen, Brendan F., Hartwig, Tilman, Klessen, Ralf S., Magg, Mattis   +6 more
core   +2 more sources