Results 61 to 70 of about 77,093 (285)

The Milky Way’s Circular Velocity Curve Measured Using Element Abundance Gradients

open access: yesThe Astrophysical Journal
Spectroscopic surveys now supply precise stellar label measurements such as element abundances for large samples of stars throughout the Milky Way. These element abundances are known to correlate with orbital actions or other dynamical invariants.
Danny Horta   +6 more
doaj   +1 more source

Figure Rotation of IllustrisTNG Halos

open access: yesThe Astrophysical Journal, 2023
We use the TNG50 and TNG50 dark matter (DM)-only simulations from the IllustrisTNG simulation suite to conduct an updated survey of halo figure rotation in the presence of baryons.
Neil Ash, Monica Valluri
doaj   +1 more source

Structure and evolution of the inner Milky Way galaxy [PDF]

open access: yesAstrophysics and Space Science, 2001
The DENIS/ISOGAL near/mid-IR survey of the Milky Way for the first time probes stellar populations in the innermost obscured regions of our galaxy. Ages, metallicities and extinction-corrected luminosities are derived for these stars individually. An old metal-rich population dominates in the inner galactic Bulge, but there are also indications for the
openaire   +1 more source

Galactic chemical evolution: Stellar yields and the initial mass function [PDF]

open access: yes, 2015
We present a set of 144 Galactic chemical evolution models applied to a Milky Way analogue, computed using four sets of low+intermediate star nucleosynthetic yields, six massive star yield compilations, and six functional forms for the initial mass ...
Cavichia, Oscar   +4 more
core   +4 more sources

Subtype‐specific enhancer RNAs define transcriptional regulators and prognosis in breast cancers

open access: yesMolecular Oncology, EarlyView.
This study employed machine learning methodologies to perform the subtype‐specific classification of RNA‐seq data sets, which are mapped on enhancers from TCGA‐derived breast cancer patients. Their integration with gene expression (referred to as ProxCReAM eRNAs) and chromatin accessibility profiles has the potential to identify lineage‐specific and ...
Aamena Y. Patel   +6 more
wiley   +1 more source

Estimating the Initial Mass of the Gaia–Enceladus Dwarf Galaxy with a Chemical Evolution Model

open access: yesThe Astrophysical Journal
This work investigates the initial mass and chemical evolution history of the Gaia–Enceladus dwarf galaxy. We combine spectroscopic data from APOGEE with astrometric data from Gaia Data Release 3 to identify Gaia–Enceladus candidate stars via a machine ...
Olcay Plevne, Furkan Akbaba
doaj   +1 more source

The star-formation history of the Milky Way Galaxy

open access: yes, 2009
The star-formation histories of the main stellar components of the Milky Way constrain critical aspects of galaxy formation and evolution. I discuss recent determinations of such histories, together with their interpretation in terms of theories of disk ...
Bensby   +11 more
core   +1 more source

The early phases of Milky Way's chemical evolution [PDF]

open access: yesNuclear Physics A, 2005
10 pages, 4 figures, Review talk in Nuclei in the Cosmos VIII (Eds. L.
openaire   +2 more sources

IMPDH inhibition enhances cytarabine efficacy in SAMHD1‐expressing leukaemia cells via guanine nucleotide depletion

open access: yesMolecular Oncology, EarlyView.
Cytarabine is a key therapy for acute myeloid leukaemia (AML), but its efficacy is limited by the dNTPase SAMHD1, which hydrolyses its active metabolite. Screening nucleotide biosynthesis inhibitors revealed that IMPDH inhibitors selectively sensitise SAMHD1‐proficient AML cells to cytarabine.
Miriam Yagüe‐Capilla   +9 more
wiley   +1 more source

A Component of the Smith High-velocity Cloud Now Crossing the Galactic Plane

open access: yesThe Astrophysical Journal, 2023
We have identified a new structure in the Milky Way: a leading component of the Smith high-velocity cloud that is now crossing the Galactic plane near longitude 25°. Using new 21 cm H i data from the Green Bank Telescope (GBT), we measured the properties
Felix J. Lockman   +3 more
doaj   +1 more source

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