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Bars inhabit the majority of local-Universe disk galaxies and may be important drivers of galaxy evolution through the redistribution of gas and angular momentum within disks. We investigate the star formation and gas properties of bars in…

The impact of galaxy cluster mergers on the properties of the resident galaxies remains poorly understood. In this paper, we investigate the effects of merging environments on star formation (SF) activity in nearby clusters ($0.04<z<0.06$)…

Astrophysics of Galaxies · Physics 2026-01-14 Oğuzhan Çakır , Matt S. Owers , Lucas C. Kimmig , Paul Nulsen , Mina Pak , Gabriella Quattropani , Warrick J. Couch

This paper presents the spatially resolved star formation history (SFH) of nearby galaxies with the aim of furthering our understanding of the different processes involved in the formation and evolution of galaxies. To this end, we apply…

We analyse two-dimensional maps and radial profiles of EW(H$\alpha$), EW(H$\delta_A$), and D$_n$(4000) of low-redshift galaxies using integral field spectroscopy from the MaNGA survey. Out of $\approx1400$ nearly face-on late-type galaxies…

Astrophysics of Galaxies · Physics 2020-09-30 Lin Lin , Cheng Li , Cheng Du , Enci Wang , Ting Xiao , Martin Bureau , Amelia Fraser-McKelvie , Karen Masters , Lihwai Lin , David Wake , Lei Hao

Galaxy evolution is generally affected by tidal interactions. Firstly, in this series, we reported several effects which suggest that tidal interactions contribute to regulating star formation (SF). To confirm that so, we now compare…

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…

Astrophysics of Galaxies · Physics 2020-04-29 Yongmin Yoon , Myungshin Im

We present the stellar surface mass density {\it vs.} gas metallicity ($\Sigma_*-Z$) relation for more than 500,000 spatially-resolved star-forming resolution elements (spaxels) from a sample of 653 disk galaxies included in the SDSS IV…

The infrared (IR) emission of M_* galaxies (10^{10.4} < M_{star} < 10^{11.0} M_\sun) in galaxy pairs, derived using data obtained in Herschel (PEP/HerMES) and Spitzer (S-COSMOS) surveys, is compared to that of single disk galaxies in well…

In order to investigate the effects of galaxy mergers throughout the interaction sequence, we present a study of 10,800 galaxies in close pairs and a smaller sample of 97 post-mergers identified in the Sloan Digital Sky Survey. We find that…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-16 Sara L. Ellison , J. Trevor Mendel , David R. Patton , Jillian M. Scudder

It has been known since many decades that galaxy interactions can induce star formation (hereafter SF) enhancements and that one of the driving mechanisms of this enhancement is related to gas inflows into the central galaxy regions,…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-27 P. Di Matteo , M. Montuori , M. D. Lehnert , F. Combes , B. Semelin

Galaxy mergers are expected to have a profound influence on the star formation histories of galaxies. It is generally expected that mergers are the main drivers of galaxy mass growth through the accretion of mass and the triggering of new…

Astrophysics of Galaxies · Physics 2026-02-18 Josephine Chishala , Roberto De Propris , Mirjana Pović

The role of gas accretion in galaxy evolution is still a matter of debate. The presence of inflows of metal-poor gas that trigger star formation bursts of low metallicity has been proposed as an explanation for the local anti-correlation…

We present a sample of 48 nearby galaxies with central, biconical outflows identified by the Mapping Nearby Galaxies at APO (MaNGA) survey. All considered galaxies have star formation driven bi-conical central outflows (SFB), with no signs…

Major mergers and interactions between gas-rich galaxies with comparable masses are thought to be the main triggers of starburst. In this work, we study, for a large stellar mass range, the interaction rate of the starburst galaxies in the…

Astrophysics of Galaxies · Physics 2015-06-22 Wentao Luo , Xiaohu Yang , Youcai Zhang

Using the integral field unit (IFU) data from Mapping Nearby Galaxies at Apache Point Observatory (MaNGA) survey, we collect a sample of 36 star forming galaxies that host galactic-scale outflows in ionized gas phase. The control sample is…

Astrophysics of Galaxies · Physics 2021-05-12 Min Bao , Yanmei Chen , Qirong Yuan , Yong Shi , Dmitry Bizyaev , Xiaoling Yu , Shuai Feng , Xiao Cao , Yulong Gao , Qiusheng Gu , Ying Yu

Galaxy mergers can enhance star formation rates throughout the merger sequence, with this effect peaking around the time of coalescence. However, owing to a lack of information about their time of coalescence, post-mergers could only…

We study the spatially resolved star formation history and molecular gas distribution of 58 nearby galaxies, using integral field spectroscopy from the CALIFA survey and CO $J=1\rightarrow 0$ intensity mapping from the CARMA EDGE survey. We…

Astrophysics of Galaxies · Physics 2019-02-06 Ryan Chown , Cheng Li , E. Athanassoula , Niu Li , Christine D. Wilson , Lin Lin , Houjun Mo , Laura C. Parker , Ting Xiao

We present our study on the spatially resolved H_alpha and M_star relation for 536 star-forming and 424 quiescent galaxies taken from the MaNGA survey. We show that the star formation rate surface density (Sigma_SFR), derived based on the…

The major interactions are known to trigger star formation in galaxies and alter their colour. We study the major interactions in filaments and sheets using the SDSS data to understand the influence of large-scale environments on the galaxy…

Astrophysics of Galaxies · Physics 2023-02-01 Apashanka Das , Biswajit Pandey , Suman Sarkar

We study the spatially resolved star formation of 1494 galaxies in the SDSSIV-MaNGA Survey. SFRs are calculated using a two-step process, using $H_\alpha$ in star forming regions and $D_n4000$ in regions identified as AGN/LI(N)ER or…