Results 121 to 130 of about 2,806,307 (206)

The Structure and Evolution of Molecular Clouds: from Clumps to Cores to the IMF

, 1999
We review the progress that has been made in observing and analyzing molecular cloud structure in recent years. Structures are self-similar over a wide range of scales with similar power law indices independent of the star forming nature of a cloud. Comparison of structures at parsec-scale resolution in a star forming and non-star forming cloud show ...
Williams, Jonathan P., Blitz, Leo, McKee, Christopher F.   +2 more
openaire   +2 more sources

Occurrence of Kelvin–Helmholtz Instability at Lunar Distance Magnetopause: ARTEMIS Observation

The Astrophysical Journal
Kelvin–Helmholtz waves can be observed frequently at the near-Earth magnetopause and play an important role in the transport of particles, momentum, and energy from the solar wind to the magnetosphere.
J. Y. Feng, Y. Zhou, J. Y. Lu, M. Wang, J. Y. Li, H. X. Zhang, F. Tang, F. L. Yue   +7 more
doaj   +1 more source

Kindling the First Stars. I. Dependence of Detectability of the First Stars with JWST on the Population III Stellar Masses

The Astrophysical Journal
The first Population III (Pop III) stars formed out of primordial, metal-free gas, in minihalos at z > 20, and kickstarted the cosmic processes of reionization and enrichment.
Mia Sauda Bovill, Massimo Stiavelli, Alessa Ibrahim Wiggins, Massimo Ricotti, Michele Trenti   +4 more
doaj   +1 more source

Evolution of a long-duration transpolar arc during very quiet period

Frontiers in Astronomy and Space Sciences
In this study, we explore the evolution of long-duration transpolar arcs observed during an exceptionally quiet period by the Fengyun-3D and Defense Meteorological Satellite Program satellites on 17 January 2019. Leveraging the extensive field of view of
Fei He, Fei He, Xiao-Xin Zhang, Jiawei Li, Zhonghua Yao, Zhonghua Yao, Zhaojin Rong, Zhaojin Rong, Yong Wei, Yong Wei   +9 more
doaj   +1 more source

The impact of early massive galaxy formation on the cosmic microwave background

Nuclear Physics B
The Cosmic Microwave Background (CMB) anisotropies, corrected for foreground effects, form the foundation of cosmology and support the Big Bang model.
Eda Gjergo, Pavel Kroupa
doaj   +1 more source

Multipoint Observations of Magnetic Reconnection in the Martian Magnetotail Triggered by an Interplanetary Magnetic Field Rotation

The Astrophysical Journal Letters
The induced magnetosphere of Mars is highly dynamic, driven by both the upstream solar wind and the planet’s crustal magnetic fields. This variability can occur on timescales much shorter than a single spacecraft orbit, making it difficult to distinguish
Yuanzheng Wen, Jasper S. Halekas, Han-Wen Shen, Abigail R. Azari, David A. Brain, Yaxue Dong, David L. Mitchell, Christian X. Mazelle, Jared R. Espley, James P. McFadden   +9 more
doaj   +1 more source

The evolution of the World Bank and IMF policies: An evaluation on Turkey

, 2023
The World Bank and IMF are organizations established to help develop nations that have experienced post-war devastation. During the years of its establishment, the World Bank provided the necessary development support to countries within the framework of statist policies.
openaire   +1 more source

Three-dimensional MHD simulation of interplanetary magnetic field changes at 1 AU as a consequence of simulated solar flares

Annales Geophysicae
A fully three-dimensional (3D), time-dependent, MHD interplanetary global model (3D IGM) has been used, for the first time, to study the relationship between different forms of solar activity and transient variations of the north-south component, <i ...
C.-C. Wu, M. Dryer, S. T. Wu
doaj  

Comparative analysis of signal decomposition methods for regional sea level trend estimation: a case study of the Korean peninsula. [PDF]

Sci Rep
Kim YJ, Kang H, Song HS, Kim JH, Kwon O.
europepmc   +1 more source

Discovery of a wind-driven diamagnetic current system in the Martian magnetosphere. [PDF]

Sci Rep
Harada Y, Lillis RJ, Fillingim MO, Imajo S, Minami T, Ma Y, Gruesbeck JR, DiBraccio GA, Espley JR.   +8 more
europepmc   +1 more source