Results 91 to 100 of about 482,942 (363)

Magnetic field formation in the Milky Way like disc galaxies of the Auriga project [PDF]

, 2017
The magnetic fields observed in the Milky Way and nearby galaxies appear to be in equipartition with the turbulent, thermal and cosmic ray energy densities, and hence are expected to be dynamically important.
R. Pakmor, F. Gómez, R. Grand, F. Marinacci, C. Simpson, V. Springel, D. Campbell, C. Frenk, T. Guillet, C. Pfrommer, S. White   +10 more
semanticscholar   +1 more source

SEGUE-2: Old Milky Way Stars Near and Far

Astrophysical Journal Supplement Series, 2022
The Sloan Extension for Galactic Understanding and Exploration 2 (SEGUE-2) obtained 128,288 low-resolution spectra (R ∼ 1800) of 118,958 unique stars in the first year of the Sloan Digital Sky Survey III (2008–2009).
C. Rockosi, Young Sun Lee, H. Morrison, B. Yanny, Jennifer A. Johnson, S. Lucatello, J. Sobeck, T. Beers, C. Allende Prieto, D. An, D. Bizyaev, M. Blanton, L. Casagrande, D. Eisenstein, A. Gould, J. Gunn, P. Harding, I. Ivans, H. Jacobson, W. Janesh, G. Knapp, J. Kollmeier, S. Lépine, M. López-Corredoira, Zhibo Ma, H. Newberg, K. Pan, J. Prchlik, Conor Sayers, K. Schlesinger, J. Simmerer, D. Weinberg   +31 more
semanticscholar   +1 more source

The Formation of the Milky Way Disk

, 2000
We present theoretical results on the galactic abundance gradients of several chemical species for the Milky Way disk, obtained using an improved version of the two-infall model of Chiappini, Matteucci, & Gratton (1997) that incorporates a more realistic model of the galactic halo and disk.
Chiappini, Cristina, Matteucci, Francesca, Romano, Donatella   +2 more
openaire   +2 more sources

Etoposide‐induced cancer cell death: roles of mitochondrial VDAC1 and calpain, and resistance mechanisms

Molecular Oncology, EarlyView.
The complex mode of action of the topoisomerase II inhibitor etoposide in triggering apoptosis involves several mechanisms: overexpression of the mitochondrial protein VDAC1, leading to its oligomerization and formation of a large channel that mediates the release of pro‐apoptotic protein; and overexpression of the apoptosis regulators p53, Bax, and ...
Aditya Karunanithi Nivedita, Varda Shoshan‐Barmatz   +1 more
wiley   +1 more source

High-resolution Chemical Abundances of the Nyx Stream

The Astrophysical Journal, 2023
Nyx is a nearby, prograde, and high-eccentricity stellar stream physically contained in the thick disk, but its origin is unknown. Nyx could be the remnant of a disrupted dwarf galaxy, in which case the associated dark matter substructure could affect ...
Shuyu Wang, Lina Necib, Alexander P. Ji, Xiaowei Ou, Mariangela Lisanti, Mithi A. C. de los Reyes, Allison L. Strom, Mimi Truong   +7 more
doaj   +1 more source

OBSERVATIONAL EVIDENCE OF DYNAMIC STAR FORMATION RATE IN MILKY WAY GIANT MOLECULAR CLOUDS [PDF]

, 2016
Star formation on galactic scales is known to be a slow process, but whether it is slow on smaller scales is uncertain. We cross-correlate 5469 giant molecular clouds (GMCs) from a new all-sky catalog with 256 star-forming complexes (SFCs) to build a ...
Eve J. Lee, M. Miville-Deschênes, N. Murray   +2 more
semanticscholar   +1 more source

Dense gas and star formation in the outer Milky Way

Astronomy & Astrophysics, 2023
We present maps and spectra of the HCN(1−0) and HCO+(1−0) lines in the extreme outer Galaxy, at galactocentric radii between 14 and 22 kpc, with the 13.7 m Delingha telescope. The nine molecular clouds were selected from a CO/13CO survey of the outer quadrants.
Braine, J., Sun, Y., Shimajiri, Y., Van Der Tak, F. F. S., Fang, M., André, Ph, Chen, H., Gao, Y.   +7 more
openaire   +3 more sources

CircCCNB1 inhibits vasculogenic mimicry by sequestering NF90 to promote miR‐15b‐5p and miR‐7‐1‐3p processing in nasopharyngeal carcinoma

Molecular Oncology, EarlyView.
CircCCNB1 expression is down‐regulated in nasopharyngeal carcinoma (NPC); thus, less NF90 protein is bound to circCCNB1 and more binds to pri‐miRNAs, blocking their (pri‐miRNAs) binding to DGCR8 and inhibiting the processing and generation of miR‐15b‐5p/miR‐7‐1‐3p. Furthermore, decreased miR‐15b‐5p/miR‐7‐1‐3p promotes the expression of the target genes
Chunmei Fan, Fenghua Tan, Jie Wu, Zhaoyang Zeng, Wenjia Guo, He Huang, Wei Xiong   +6 more
wiley   +1 more source

The Star Formation History of the Milky Way’s Nuclear Star Cluster

The Astrophysical Journal, 2023
We report the first star formation history study of the Milky Ways nuclear star cluster (NSC), which includes observational constraints from a large sample of stellar metallicity measurements.
Zhuo Chen, Tuan Do, Andrea M. Ghez, Matthew W. Hosek Jr., Anja Feldmeier-Krause, Devin S. Chu, Rory O. Bentley, Jessica R. Lu, Mark R. Morris   +8 more
doaj   +1 more source

When the Milky Way turned off the lights: APOGEE provides evidence of star formation quenching in our Galaxy [PDF]

, 2016
Quenching, the cessation of star formation, is one of the most significant events in the life cycle of galaxies. We show here the first evidence that the Milky Way experienced a generalised quenching of its star formation at the end of its thick disk ...
M. Haywood, M. Lehnert, P. Matteo, O. Snaith, M. Schultheis, D. Katz, A. Gómez   +6 more
semanticscholar   +1 more source