Results 71 to 80 of about 49,316 (344)

Repeating Nuclear Transients From Repeating Partial Tidal Disruption Events

Astronomische Nachrichten, EarlyView.
ABSTRACT Extragalactic nuclear transients that exhibit repeating outbursts can be modeled as the repeated dynamical interaction between bound stars and supermassive black holes (SMBHs). A subset of these transients, with recurrence timescales of months‐to‐years, have been explained as accretion flares from the repeated tidal stripping of a star by an ...
Ananya Bandopadhyay, Eric R. Coughlin, Julia Fancher, C. J. Nixon, Dheeraj R. Pasham   +4 more
wiley   +1 more source

Gas-Phase Oxygen Gradients in Strongly Interacting Galaxies: I. Early-Stage Interactions

, 2010
A consensus is emerging that interacting galaxies show depressed nuclear gas metallicities compared to isolated star-forming galaxies. Simulations suggest that this nuclear underabundance is caused by interaction-induced inflow of metal-poor gas, and ...
Allen, Arp, Barnes, Barton, Bosma, Bresolin, Bresolin, Brooks, Bundy, Chen, Chien, Condon, Dalcanton, David S. N. Rupke, Dutil, Ellison, Elmegreen, Garnett, Herrmann, Jacobs, Johnson, Kamphuis, Kennicutt, Kewley, Kewley, Kewley, Kewley, Kewley, Kobulnicky, Kochanek, Koopmann, L.-H. Chien, Lee, Lisa J. Kewley, Moustakas, Peeples, Rich, Robaina, Roy, Rupke, Rupke, Salzer, Sanders, Surace, Tremonti, Tully, Tully, Tully, van Zee, van Zee, Vila-Costas, Vorontsov-Velyaminov, White, Zahid   +53 more
core   +1 more source

Interacting galaxies and mergers

Nature Astronomy, 2019
Two landmark papers in the 1970s contributed strongly to establishing the importance of galaxy interactions and mergers in the formation and evolution of galaxies, using only gravity, and the ensuing dynamical friction.
Athanassoula, E., Bosma, Albert
openaire   +3 more sources

Quantifying the Impact of Relativistic Precession on Tidal Disruption Event Light Curves

Astronomische Nachrichten, EarlyView.
ABSTRACT The tidal field of a black hole can turn a star into a gas stream whose orbit can precess, especially if the a black hole is rapidly spinning. In this work, we investigate the impact of precession on the light curves of tidal disruption events (TDE).
Diego Calderón, Ondřej Pejcha, Brian D. Metzger, Paul C. Duffell, Stephan Rosswog   +4 more
wiley   +1 more source

The Cosmic Owl: Twin Active Collisional Ring Galaxies with Starburst Merging Front at z = 1.14

The Astrophysical Journal
Galaxy mergers play a critical role in driving galaxy evolution, especially by transforming galaxy morphology, redistributing gas around galaxies, triggering active galactic nuclei (AGN), and stimulating star formation.
Mingyu Li, Bjorn H. C. Emonts, Zheng Cai, Takumi S. Tanaka, Wilfried Mercier, Yunjing Wu, Fujiang Yu, Fengwu Sun, Fuyan Bian, Emanuele Daddi, Xiaohui Fan, Xiaojing Lin, Jianwei Lyu, Jeyhan S. Kartaltepe, Francesco Valentino   +14 more
doaj   +1 more source

Understanding Degradation Mechanisms in Water‐In‐Salt Electrolyte. Part 2: Impact of the Electrochemical Parameters on the Cycling Behavior of LiFePO4 versus TiS2

Batteries &Supercaps, EarlyView.
Cycling water‐in‐salt batteries involves complex degradation processes that require multiprobe analysis. Using online electrochemical mass spectrometry (OEMS), postmortem X‐ray photoemission spectroscopy (XPS) (including hard‐XPS), and scanning electron microscopy (SEM), the degradation mechanisms are examined in composite electrodes (TiS2 and LiFePO4)
Célia Doublet, Théo Faverge, Vincent Martin, Hiram Castillo Michel, Jean‐Pascal Rueff, Marian Chatenet, Lauréline Lecarme, Claire Villevieille   +7 more
wiley   +1 more source

Reduction of the Bar Fraction in Paired Galaxies in the SDSS

The Astrophysical Journal
We investigate the bar fraction in galaxy pairs from the Sloan Digital Sky Survey to assess how galaxy interactions affect bar structures. Compared to isolated galaxies, close pairs exhibit a significantly reduced bar fraction at projected separations ...
Linlin Li, Shuai Feng, Shiyin Shen, Qi’an Deng, Ying Zu, Wenyuan Cui   +5 more
doaj   +1 more source

Large-scale radio continuum properties of 19 Virgo cluster galaxies The influence of tidal interactions, ram pressure stripping, and accreting gas envelopes [PDF]

, 2013
Deep scaled array VLA 20 and 6cm observations including polarization of 19 Virgo spirals are presented. This sample contains 6 galaxies with a global minimum of 20cm polarized emission at the receding side of the galactic disk and quadrupolar type large ...
Beck, R., Chung, A., Chyzy, K. T., Kenney, J. D. P., Otmianowska-Mazur, K., Soida, M., Urbanik, M., Vollmer, B.   +7 more
core   +2 more sources

Sloshing in High‐Speed Galaxy Interactions [PDF]

The Astrophysical Journal, 2000
20 text pages, 3 tables, 24 figures. A gzipped postscripped version with higher resolution figures can be downloaded from http://butch.umephy.maine.edu/kickers/Research/Sloshing/ .
Zeltwanger, Thomas, Comins, Neil F., Lovelace, Richard V. E.   +2 more
openaire   +2 more sources

Form flows function: Learner‐centered game Re‐design in a STEM classroom

British Educational Research Journal, EarlyView.
Abstract Re‐designing games facilitates interest‐driven learning and immerses learners in systems thinking. However, there are limited studies exploring how the form and function of tabletop games influence learners' design decisions and learning experiences. To address this gap, we conducted a mixed‐methods study in a STEM classroom in western Canada.
Farzan Baradaran Rahimi, Beaumie Kim, Shima Dadkhahfard   +2 more
wiley   +1 more source