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相关论文: Unraveling Joint Evolution of Bars, Star Formation…

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Bars are ubiquitously found in disc galaxies and are known to drive galaxy evolution through secular processes. However, the specific contribution of bars in suppression of star formation (SF) is still under inspection which we investigate…

星系天体物理 · 物理学 2025-04-09 D. Renu , Smitha Subramanian , Suhasini Rao , Koshy George

We present a numerical study of the impact of AGN accretion and feedback on the star formation history of barred disc galaxies. Our goal is to determine whether the effect of feedback is positive (enhanced star formation) or negative…

星系天体物理 · 物理学 2017-06-28 Fidèle Robichaud , David Williamson , Hugo Martel , Daisuke Kawata , Sara L. Ellison

We explore the cosmic evolution of the bar length, strength, and light deficit around the bar for 379 barred galaxies at 0.2 < z $\leq$ 0.835 using F814W images from the COSMOS survey. Our sample covers galaxies with stellar mass 10.0…

星系天体物理 · 物理学 2021-12-08 Taehyun Kim , E. Athanassoula , Kartik Sheth , Albert Bosma , Myeong-Gu Park , Yun Hee Lee , Hong Bae Ann

Among the many processes involved in galaxy evolution, those of bar formation, quenching, and feedback from an active galactic nucleus (AGN) seem to be connected, however, the nature of these relations remains unclear. In this work, we aim…

星系天体物理 · 物理学 2022-12-07 Ewa L. Lokas

The coevolution of supermassive black holes and their host galaxies represents a fundamental question in astrophysics. One approach to investigating this question involves comparing the star-formation rates (SFRs) of active galactic nuclei…

星系天体物理 · 物理学 2024-11-26 Bojun Zhang , Fan Zou , W. N. Brandt , Shifu Zhu , Nathan Cristello , Qingling Ni , Yongquan Xue , Zhibo Yu

We investigate the relations between the properties of bars and their host galaxies in a sample of 77 nearby barred galaxies, spanning a wide range of morphological types and luminosities, with 34 SB0-SBa and 43 SBab-SBc galaxies. The…

星系天体物理 · 物理学 2020-09-23 Virginia Cuomo , J. Alfonso L. Aguerri , Enrico Maria Corsini , Victor P. Debattista

Understanding the role of galactic scale bars in disk galaxy evolution requires detailed measurements of bar properties across galaxies hosting bars at many redshifts. We present measurements of bar lengths and widths in a sample of 8230…

We analyze the observed properties of nested and single stellar bar systems in disk galaxies. The 112 galaxies in our sample comprise the largest matched Seyfert vs. non-Seyfert sample of nearby galaxies with complete near-infrared or…

天体物理学 · 物理学 2010-04-21 Seppo Laine , Isaac Shlosman , Johan H. Knapen , Reynier F. Peletier

The star formation rates (SFRs) and metallicities of a sample of 294 galaxies with visually classified, strong, large-scale bars are compared to a control sample of unbarred disk galaxies selected from the Sloan Digital Sky Survey Data…

宇宙学与河外天体物理 · 物理学 2015-05-28 Sara L. Ellison , Preethi Nair , David R. Patton , Jillian M. Scudder , J. Trevor Mendel , Luc Simard

[Abridged] Active Galactic Nuclei (AGN) are thought to be responsible for the suppression of star formation in massive ~10$^{10}$ M$_\odot$ galaxies. While this process is a key feature in numerical simulations, it is not yet unambiguously…

The central regions of star-forming barred spiral galaxies can be devoid of star formation because of the redistribution of gas along the length of the bar. However, there can be gas outside the length of the bar that can host star…

星系天体物理 · 物理学 2021-07-28 Koshy George , Smitha Subramanian

We investigate the relation between AGN and star formation (SF) activity at $0.5 < z < 3$ by analyzing 898 galaxies with X-ray luminous AGN ($L_X > 10^{44}$ erg s$^{-1}$) and a large comparison sample of $\sim 320,000$ galaxies without…

Galactic bars can affect the evolution of galaxies by redistributing gas in galaxies, possibly contributing to the cessation of star formation. Recent works point to 'bar quenching' playing an important role in massive disk galaxies like…

星系天体物理 · 物理学 2020-01-22 Lucy Newnham , Kelley Hess , Karen Masters , Sandor Kruk , Samanta Penny , Tim Lingard , Rebecca Smethurst

The disks of Active Galactic Nuclei (AGNs) are expected to be populated by numerous stars, either formed in the outer regions of the disk via gravitational instability, or captured from the nearby nuclear star cluster. Regardless of their…

星系天体物理 · 物理学 2025-03-07 Gaia Fabj , Alexander J. Dittmann , Matteo Cantiello , Rosalba Perna , Johan Samsing

We present the initial results of a census of 684 barred galaxies in the MaNGA galaxy survey. This large sample contains galaxies with a wide range of physical properties, and we attempt to link bar properties to key observables for the…

星系天体物理 · 物理学 2020-05-20 A. Fraser-McKelvie , M. Merrifield , A. Aragón-Salamanca , K. Masters , the MaNGA Survey Team

We map the co-eval growth of galaxies and their central supermassive black holes in detail by measuring the incidence of Active Galactic Nuclei (AGN) in galaxies as a function of star formation rate (SFR) and redshift (to z~4). We combine…

星系天体物理 · 物理学 2019-02-20 James Aird , Alison L. Coil , Antonis Georgakakis

A recent study shows that bars can be induced via interaction of galaxy clusters, but it has been unclear if the bar formation by the interaction between clusters is related to the enhancement of star formation. We study galaxies in 105…

星系天体物理 · 物理学 2020-04-29 Yongmin Yoon , Myungshin Im

We investigate the dependence of occurrence of bars in galaxies on galaxy properties and environment. We use a volume-limited sample of 33,391 galaxies brighter than $M_{r}=-19.5+5$log$h$ at $0.02\le z\le0.05489$, drawn from the SDSS DR 7.…

宇宙学与河外天体物理 · 物理学 2015-05-30 Gwang-Ho Lee , Changbom Park , Myung Gyoon Lee , Yun-Young Choi

Bars are common in low-redshift disk galaxies, and hence quantifying their influence on their host is of importance to the field of galaxy evolution. We determine the stellar populations and star formation histories of 245 barred galaxies…