Results 41 to 50 of about 65,809 (311)

A Self-interacting Dark Matter Solution to the Extreme Diversity of Low-mass Halo Properties

The Astrophysical Journal Letters, 2023
The properties of low-mass dark matter (DM) halos appear to be remarkably diverse relative to cold, collisionless DM predictions, even in the presence of baryons.
Ethan O. Nadler, Daneng Yang, Hai-Bo Yu
doaj   +1 more source

S0 Galaxies: Outer Gas Accretion through Tidal Interaction and Minor Merging

Galaxies, 2023
To clarify the sources of outer gas accretion onto disk galaxies, we study the vicinity of four interacting galaxy systems in the Hα emission line by using the scanning Fabry–Perot interferometer of the 6m telescope of the Special Astrophysical ...
Olga Sil’chenko, Alexei V. Moiseev, Alexandrina Smirnova, Roman Uklein   +3 more
doaj   +1 more source

Supernovae in isolated galaxies, in pairs and in groups of galaxies [PDF]

, 2001
In order to investigate the influence of the environment on the supernova (SN) production we have performed a statistical investigation of the SNe discovered in isolated galaxies, in pairs and in groups of galaxies. 22 SNe in 18 isolated galaxies, 48 SNe
A.R. Petrosian, Afifi, Arp, Barbon, Barbon, Barbon, Bartunov, Bartunov, Branch, Cappellaro, Cappellaro, Cappellaro, Cappellaro, Cappellaro, E. Cappellaro, Garcia, H. Navasardyan, Harman, Heidmann, Hodge, Iglesias-Paramo, J. Boulesteix, Karachentsev, Karachentseva, Keel, Kennicutt, Kennicutt, Kochhar, Kochhar, Larson, Laurikainen, Laurikainen, Lonsdale, M. Turatto, Maza, McCarthy, Melnick, Moles, Oemler, Patat, Petrosian, Petrosian, Petrosian, Reduzzi, Sanders, Schombert, Smirnov, Soifer, Thronson, Turatto, Turatto, Vader, van den Bergh, van den Bergh, Van Dyk, Van Dyk, Van Dyk, Whitmore, Wu, Zwicky   +59 more
core   +2 more sources

AEGIS: Enhancement of Dust-enshrouded Star Formation in Close Galaxy Pairs and Merging Galaxies up to z ~ 1

, 2007
Using data from the DEEP2 Galaxy Redshift Survey and HST/ACS imaging in the Extended Groth Strip, we select nearly 100 interacting galaxy systems including kinematic close pairs and morphologically identified merging galaxies.
Chiueh, Tzihong, Coil, Alison L., Conselice, Christopher J., Cooper, Michael C., Floc'h, Emeric Le, Guhathakurta, Puragra, Huang, J. -S., Koo, David C., Lin, Lihwai, Lotz, Jennifer, Noeske, Kai G., Phillips, Andrew C., Smith, H. A., Weiner, Benjamin J., Willmer, Christopher N. A., Willner, S. P.   +15 more
core   +1 more source

Interactions, Starbursts, and Star Formation

Galaxies, 2015
We study how interactions between galaxies affect star formation within them by considering a sample of almost 1500 of the nearest galaxies, all within a distance of ∼45 Mpc. We use the far-IR emission to define the massive star formation rate (SFR), and
Johan H. Knapen, Miguel Querejeta
doaj   +1 more source

Back to the green valley: how to rejuvenate an S0 galaxy through minor mergers

, 2015
About half of the S0 galaxies in the nearby Universe show signatures of recent or ongoing star formation. Whether these S0 galaxies were rejuvenated by the accretion of fresh gas is still controversial.
Mapelli, Michela
core   +1 more source

Gasdynamics and Starbursts in Interacting Galaxies [PDF]

Symposium - International Astronomical Union, 1999
The onset of gaseous inflows and central activity in interacting galaxies is driven largely by induced bars in the host galaxies. The stability of galaxies against growing bar modes is a direct function of their structural properties — galaxies with central bulges or low disk surface densities are more stable against central starbursts than are ...
openaire   +4 more sources

The TET3/GATA6 Axis Drives Lipid Metabolism and Therapeutic Vulnerabilities in Pancreatic Ductal Adenocarcinoma

Advanced Science, EarlyView.
The DNA demethylase TET3 drives lipid metabolic reprogramming in pancreatic ductal adenocarcinoma via a non‐catalytic mechanism. TET3 recruits histone deacetylases to repress GATA6, sustaining lipogenic enzyme expression and ferroptosis resistance.
Shuai Liu, Shaobo Kang, Na Lin, Wenqi Zhang, Shiwen Wang, Yuqing Ren, Xiaofan Ding, Jianxiu Yu, Ruiyu Xie   +8 more
wiley   +1 more source

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   +1 more source

The ISM in the z = 6.9 Interacting Galaxies of SPT0311-58

The Astrophysical Journal, 2023
SPT0311-58, a system of two interacting galaxies in the Epoch of Reionization, exists in one of the rarest, most massive dark matter halos theoretically possible in that era.
Katrina C. Litke, Daniel P. Marrone, Manuel Aravena, Melanie Archipley, Matthieu Béthermin, James Burgoyne, Jared Cathey, Scott C. Chapman, Anthony H. Gonzalez, Thomas R. Greve, Gayathri Gururajan, Christopher C. Hayward, Matthew A. Malkan, Kedar A. Phadke, Cassie A. Reuter, Kaja M. Rotermund, Justin S. Spilker, Antony A. Stark, Nikolaus Sulzenauer, Joaquin D. Vieira, David Vizgan, Axel Weiß   +21 more
doaj   +1 more source