Results 11 to 20 of about 17,021 (292)

The Effect of Galaxy Interactions on Starbursts in Milky Way-mass Galaxies in FIRE Simulations

The Astrophysical Journal
Simulations and observations suggest that galaxy interactions may enhance the star formation rate (SFR) in merging galaxies. One proposed mechanism is the torque exerted on the gas and stars in the larger galaxy by the smaller galaxy.
Fei Li, Mubdi Rahman, Norman Murray, Dušan Kereš, Andrew Wetzel, Claude-André Faucher-Giguère, Philip F. Hopkins, Jorge Moreno   +7 more
doaj   +2 more sources

Formation of the Dark Matter–Deficient S0 Galaxy NGC 4111 under the Tidal Interactions

The Astrophysical Journal Letters
We present high-sensitivity and large-scale atomic hydrogen (H i ) observations toward lenticular (S0) galaxy NGC 4111 using the Five-hundred-meter Aperture Spherical Radio Telescope.
Mei Ai, Ming Zhu, Nai-ping Yu, Jin-long Xu, Xiao-lan Liu, Yingjie Jing, Qian Jiao, Yao Liu, Chuan-peng Zhang, Jie Wang, Peng Jiang   +10 more
doaj   +2 more sources

A study of galaxy interactions

, 2014
This work describes the in-depth study of two systems of interacting galaxies, namely Arp 10 and VII Zw466. Both systems belong to a special group of interacting galaxies known as collisional ring and ring-like galaxies. A typical ring galaxy emerges when a companion galaxy passes through or near the center of a larger rotating disk galaxy driving ring-
Charmandaris, Vassilios
openaire   +4 more sources

MIGHTEE-H i: possible interactions with the galaxy NGC 895 [PDF]

, 2023
The transformation and evolution of a galaxy is strongly influenced by interactions with its environment. Neutral hydrogen (H i) is an excellent way to trace these interactions.
Naluminsa, E, Korsaga, M, Frank, B, Heywood, I, Carignan, C, Delhaize, J, Smirnov, OM, Baes, M, Jarvis, M, Ianjamasimanana, R, Kurapati, S, Román, J, Maddox, N, Jarrett, T, Ponomareva, AA, Van Der Hulst, JM, Vaccari, M, Chen, H, Lucero, D, Namumba, B, Adams, EAK, Meyer, M, Marchetti, L, Pisano, DJ, Rajohnson, SHA, Sikhosana, S, Falcón-Barroso, J, Verdes-Montenegro, L, Malek, K, Legodi, S, Knapen, JH, Józsa, GIG   +31 more
core   +4 more sources

Janus kinase 2 inhibition by pacritinib as potential therapeutic target for liver fibrosis

Hepatology, EarlyView., 2022
Diagram of the activation of the profibrotic and procontractile Janus kinase 2 (JAK2)/Ras homolog family member A/Rho‐kinase pathway and the inhibition of phosphorylated JAK2 by pacritinib to inhibit hepatic stellate cell activity. Abstract Background and Aims Janus kinase 2 (JAK2) signaling is increased in human and experimental liver fibrosis with ...
Sandra Torres, Cristina Ortiz, Nadine Bachtler, Wenyi Gu, Leon D. Grünewald, Nico Kraus, Robert Schierwagen, Christoph Hieber, Caroline Meier, Olaf Tyc, Maximilian Joseph Brol, Frank Erhard Uschner, Bart Nijmeijer, Christoph Welsch, Marie‐Luise Berres, Carmen Garcia‐Ruiz, Jose Carlos Fernandez‐Checa, Christian Trautwein, Thomas J. Vogl, Stefan Zeuzem, Jonel Trebicka, Sabine Klein   +21 more
wiley   +1 more source

Galaxy Interactions: The Hi Signature [PDF]

Symposium - International Astronomical Union, 1999
HI observations are an excellent tool for investigating tidal interactions. Ongoing major and minor interactions which can lead to traumatic mergers or to accretion and the triggering of star formation, show distinct HI signatures. Interactions and mergers in the recent past can also be recognized in the HI structure and kinematics.
openaire   +2 more sources

Nests of Interacting Galaxies: What is it? [PDF]

Symposium - International Astronomical Union, 1987
Kinematical and photometric studies of nests of interacting galaxies are described. Velocity fields of 22 nests were obtained using the 6-meter telescope of the Special Astronomical Observatory of Sciences Academy of USSR. UBV-photometry carried out with 125-cm telescope of Sternberg Institute has shown that the majority of nests is blue and undergoes ...
V.P. Arkhipova, A.V. Zasov, R.I. Noskova, O.K. Silchenko   +3 more
openaire   +1 more source

Evolution of Galaxies Through Their Interactions [PDF]

Symposium - International Astronomical Union, 1996
We investigated how the encounters between galaxies change their mass M and velocity dispersion σ. We carried out a series of direct N-body simulation of encounters of two spherical galaxies. In Figure 1, the relative change of energy ΔE/E are plotted against that of mass ΔM/M for various initial conditions.
Y. Funato, J. Marino
openaire   +1 more source

On the Effects of Local Environment on Active Galactic Nucleus (AGN) in the Horizon Run 5 Simulation

The Astrophysical Journal, 2023
We use the Horizon Run 5 cosmological simulation to study the effect of galaxy intrinsic properties and the local environment on active galactic nuclei (AGNs) characterized by their threshold of the accretion rate.
Ankit Singh, Changbom Park, Ena Choi, Juhan Kim, Hyunsung Jun, Brad K. Gibson, Yonghwi Kim, Jaehyun Lee, Owain Snaith   +8 more
doaj   +1 more source

Galaxy triplets [Dataset]

, 2023
The environments where galaxies reside affects their evolutionary histories. Galaxy triplets (systems composed of three physically bound galaxies) are one of simplest groups of galaxies, and are therefore excellent laboratories to study evolutionary ...
Duarte Puertas, S.
core   +1 more source