Zobrazeno 1 - 10
of 185
pro vyhledávání: '"Interstellar dynamics"'
Publikováno v:
The Astrophysical Journal, Vol 975, Iss 2, p 284 (2024)
The dust grain size distribution (GSD) likely varies significantly across star-forming environments in the Universe, but its impact on star formation remains unclear. This ambiguity arises because the GSD interacts nonlinearly with processes like hea
Externí odkaz:
https://doaj.org/article/fb5792f55b0642bda3d7911b46613624
Publikováno v:
The Astrophysical Journal, Vol 975, Iss 2, p 182 (2024)
Noncircular (NC) motions represent the imprints of nonaxisymmetric structures in galaxies, providing opportunities to study the physical properties of gas departing from circular rotation. In this work, we have conducted a systematic study of the NC
Externí odkaz:
https://doaj.org/article/eb31441b37e348f98b2bf7afc54c0245
Publikováno v:
The Astrophysical Journal, Vol 975, Iss 2, p 167 (2024)
The cold neutral medium (CNM) is where neutral atomic hydrogen (H i ) is converted into molecular clouds, so the structure and kinematics of the CNM are key drivers of galaxy evolution. Here we provide new constraints on the vertical distribution of
Externí odkaz:
https://doaj.org/article/bcdc20079cde4692b05cbd8324bb11ca
Publikováno v:
The Astrophysical Journal, Vol 974, Iss 2, p 237 (2024)
The gradient technique is a promising tool with theoretical foundations based on the fundamental properties of MHD turbulence and turbulent reconnection. Its various incarnations use spectroscopic, synchrotron, and intensity data to trace the magneti
Externí odkaz:
https://doaj.org/article/364245f03f5b461ea81729224355af23
Publikováno v:
The Astrophysical Journal, Vol 971, Iss 2, p 149 (2024)
We present a stellar dynamical mass measurement of the supermassive black hole in the elliptical (E1) galaxy NGC 3258. Our findings are based on integral field unit spectroscopy from the Multi Unit Spectroscopic Explorer (MUSE) observations in narrow
Externí odkaz:
https://doaj.org/article/d23c2eeee5094ea09aa790243cee5b31
Publikováno v:
The Astrophysical Journal, Vol 974, Iss 1, p 136 (2024)
Stars form within dense cores composed of both gas and dust within molecular clouds. However, despite the crucial role that dust plays in the star formation process, its dynamics is frequently overlooked, with the common assumption being a constant,
Externí odkaz:
https://doaj.org/article/2ad6ccbb7e754b0d9ae80cbe3162d7ab
Autor:
Yue Hu, A. Lazarian
Publikováno v:
The Astrophysical Journal, Vol 972, Iss 1, p 17 (2024)
Probing magnetic fields in astrophysical environments is both important and challenging. The Gradient Technique (GT) is a new tool for tracing magnetic fields, rooted in the properties of magnetohydrodynamic (MHD) turbulence and turbulent magnetic re
Externí odkaz:
https://doaj.org/article/5c321300424d43c3a2a1ac9c423f1083
Publikováno v:
The Astrophysical Journal, Vol 966, Iss 2, p 206 (2024)
The vertical distribution of cold neutral hydrogen (H i ) clouds is a constraint on models of the structure, dynamics, and hydrostatic balance of the interstellar medium. In 1978, Crovisier pioneered a method to infer the vertical distribution of H i
Externí odkaz:
https://doaj.org/article/5e2f6b90c5ac4f4ba116e24a4c4059aa
Publikováno v:
The Astronomical Journal, Vol 167, Iss 5, p 228 (2024)
This paper is aimed at exploring the implications of velocity-dispersion scalings on high-mass star formation in molecular clouds, including the scalings of Larson’s linewidth–size ( σ – R ) and ratio–mass surface density ( ${ \mathcal L }$
Externí odkaz:
https://doaj.org/article/bee3c13900fb4ca4b3cf7c301496d5d9
Publikováno v:
The Astrophysical Journal, Vol 965, Iss 2, p 168 (2024)
The deposition of energy and momentum by supernova explosions has been subject to numerous studies in the past few decades. However, while there has been some work that focused on the transition from the adiabatic to the radiative stage of a supernov
Externí odkaz:
https://doaj.org/article/66dfdc4bb80c4dd0b81f30178fded153