Results 101 to 110 of about 44,022 (216)

Dynamical evolution and molecular abundances of interstellar clouds

The Astrophysical Journal, 1991
Dynamical models are presented that start with interstellar gas in an initial diffuse state and consider their gravitational collapse and the formation of dense cores. Frozen-in tangled magnetic fields are included to mimic forces that might oppose gravitational contraction and whose effectiveness may increase with increasing core densities.
Sheo S. Prasad, Karen R. Heere, Shankar P. Tarafdar   +2 more
openaire   +1 more source

Asymptotic Behaviour of Galactic Small-scale Dynamos at Modest Magnetic Prandtl Number

The Astrophysical Journal Letters
Magnetic fields are critical at many scales to galactic dynamics and structure, including multiphase pressure balance, dust processing, and star formation. Dynamo action determines their dynamical structure and strength.
Frederick A. Gent, Mordecai-Mark Mac Low, Maarit J. Korpi-Lagg, Touko Puro, Matthias Rheinhardt   +4 more
doaj   +1 more source

Cloud–Cloud Collision and Cluster Formation in the W5-NW Complex

The Astronomical Journal
We present a detailed structural and gas kinematic study of the star-forming complex W5-NW. A cloud–cloud collision scenario unravels with evidence of collision-induced star and cluster formation.
Namitha Issac, Anindya Saha, Saanika Choudhary, Aakash Chaudhary, Anandmayee Tej, Hong-Li Liu, Tie Liu, Maheswar Gopinathan   +7 more
doaj   +1 more source

An Anisotropic Plasma Model of the Heliospheric Interface

The Astrophysical Journal
We present a pioneering model of the interaction between the solar wind and the surrounding interstellar medium that includes the possibility of different pressures in directions parallel and perpendicular to the magnetic field.
Vladimir Florinski, Dinshaw S. Balsara, Deepak Bhoriya, Gary P. Zank, Shishir Biswas, Swati Sharma, Sethupathy Subramanian   +6 more
doaj   +1 more source

Characterizing Density and Gravitational Potential Fluctuations of the Interstellar Medium

The Astrophysical Journal
Substructure in the interstellar medium (ISM) is crucial for establishing the correlation between star formation and feedback and has the capacity to significantly perturb stellar orbits, thus playing a central role in galaxy dynamics and evolution ...
Shaunak Modak, Eve C. Ostriker, Chris Hamilton, Scott Tremaine   +3 more
doaj   +1 more source

An S-shaped Filament Formed Due to Cloud–Cloud Collision in Molecular Cloud G178.28-00.61

The Astrophysical Journal Supplement Series
We present compelling observational evidence supporting G178.28-00.61 as an early-stage candidate for cloud–cloud collision (CCC), with indications of the formation of an S-shaped filament, evenly separated dense cores, and young star clusters.
Tianwei Zhang, Tie Liu, Yuefang Wu, Linjing Feng, Sihan Jiao, Derek Ward-Thompson, Alessio Traficante, Helen J Fraser, James Di Francesco, Doug Johnstone, Paul F. Goldsmith, Yasuo Doi, Xunchuan Liu, Chang Won Lee, Fengwei Xu, Ram K. Yadav, Glenn J White, Leonardo Bronfman, Yi-Jehng Kuan, Kee-Tae Kim, Donghui Quan   +20 more
doaj   +1 more source

Detection of an Explosive Outflow in G34.26+0.15

The Astronomical Journal
This paper reports on the detection of a likely explosive outflow in the high-mass star-forming complex G34.26+0.15, adding to the small number (six) of explosive outflows detected so far.
Namitha Issac, Xing Lu, Tie Liu, Luis A. Zapata, Hong-Li Liu, Anandmayee Tej, Yan-Kun Zhang, Wenyu Jiao, Suinan Zhang   +8 more
doaj   +1 more source

Evidences of Two Merging Elongated Filaments Associated with AGAL323.444+0.096 and Star Formation

The Astrophysical Journal
We study the structure, kinematics, and star-forming activity of filamentary cloud F-NE associated with AGAL323.444+0.096 using ^13 CO ( J = 2–1) molecular line and continuum data from the far-infrared to near-infrared.
Yingxiu Ma, Jianjun Zhou, Jarken Esimbek, Dalei Li, Andrej M. Sobolev, Xindi Tang, Willem Baan, Gang Wu, Macleod Gordon, Yuxin He, Ke Wang, Tie Liu, Dongdong Zhou, Kadirya Tursun, Dmitry A. Ladeyschikov, Weiguang Ji, Hailiang Shen   +16 more
doaj   +1 more source

So Long Kolmogorov: The Forward and Backward Turbulence Cascades in a Supernovae-driven, Multiphase Interstellar Medium

The Astrophysical Journal
The interstellar medium (ISM) of disk galaxies is turbulent, and yet the fundamental nature of ISM turbulence, the energy cascade, is not understood in detail.
James R. Beattie, Anne Noer Kolborg, Enrico Ramirez-Ruiz, Christoph Federrath   +3 more
doaj   +1 more source

A Dynamic Interstellar Medium: Recent Numerical Simulations

, 2000
Recent numerical simulations of the interstellar medium driven by energy input from supernovae and stellar winds indicate that HI clouds can be formed by compression in shock waves and colliding turbulent streams without any help from thermal and gravitational instabilities.
openaire   +2 more sources