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In the previous work of Xu & Peng (2021), we investigated the structural and environmental dependence on quenching in the nearby universe. In this work we extend our investigations to higher redshifts by combining galaxies from SDSS and…

Astrophysics of Galaxies · Physics 2023-11-30 Bingxiao Xu , Yingjie Peng

We investigate the suppression of star formation in galaxy pairs based on the isolated galaxy pair sample derived from the SDSS survey. By comparing the star formation rate between late-type galaxies in galaxy pairs and those in the…

Astrophysics of Galaxies · Physics 2024-03-18 Shuai Feng , Shi-Yin Shen , Fang-Ting Yuan , Wen-Xin Zhong , Wen-Yuan Cui , Lin-Lin Li

We present new measurements of the clustering of stellar mass-complete samples of $\sim40,000$ SDSS galaxies at $z\sim0.03$ as a joint function of stellar mass and specific star formation rate (sSFR). Our results confirm what Coil et al.…

Astrophysics of Galaxies · Physics 2021-05-14 Angela M. Berti , Alison L. Coil , Andrew P. Hearin , Peter S. Behroozi

We study the effects of galaxy environment on the evolution of the stellar-mass function (SMF) over 0.2 < z < 2.0 using the FourStar Galaxy Evolution (ZFOURGE) survey and NEWFIRM Medium-Band Survey (NMBS) down to the stellar-mass…

Galaxy mergers can change the rate at which stars are formed. We can trace when these changes occur in simulations of galaxy mergers. However, for observed galaxies we do not know how the star formation rate (SFR) evolves along the merger…

Astrophysics of Galaxies · Physics 2026-01-14 W. J. Pearson , L. Wang , V. Rodriguez-Gomez , B. Margalef-Bentabol , L. E. Suelves

We study star formation (SF) quenching of satellite galaxies with $M_{*} > 10^7\,M_{\odot}$ within two low-mass groups ($M_{\rm vir}=10^{12.9}$ and $10^{12.7} \,M_{\odot}$) using the NewHorizon simulation. We confirm that satellite galaxies…

With the aim to assess the role of dense environments in galaxy interactions, properties we present an analysis of close galaxy pairs in groups and clusters, obtained from the Sloan Digital Sky Survey Data Release 7 (SDSS-DR7). We…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-03 Sol Alonso , Valeria Mesa , Nelson Padilla , Diego G. Lambas

The quenching of star formation activity represents a critical phase for a non-negligible fraction of the observed galaxy population at all cosmic epochs, marking a transition from an epoch of intense mass growth to an extended period of…

Astrophysics of Galaxies · Physics 2025-02-05 Gabriella De Lucia , Fabio Fontanot , Michaela Hirschmann , Lizhi Xie

Observations show a prevalence of high redshift galaxies with large stellar masses and predominantly passive stellar populations. A variety of processes have been suggested that could reduce the star formation in such galaxies to observed…

Astrophysics of Galaxies · Physics 2015-06-19 Robert Feldmann , Lucio Mayer

We have used a sample of 15749 galaxies taken from the Las Campanas Redshift Survey to investigate the effects of environment on the rate of star formation (SFR) in galaxies. The size and homogeneity of this data set allows us to sample,…

Astrophysics · Physics 2009-10-30 Yasuhiro Hashimoto , Augustus Oemler , Huan Lin , Douglas L. Tucker

We present a comprehensive study of the relationship between star formation rate (SFR) and stellar mass (M_*) from z = 0.1 to z = 4 using a mass-complete sample of approximately 290,000 galaxies from the COSMOS2020 catalog. We find that the…

Astrophysics of Galaxies · Physics 2026-04-23 Kaimin He , Ke Shi , Jun Toshikawa , Xianzhong Zheng , Xiaopeng You

The origin of the quenching in galaxies is still highly debated. Different scenarios and processes are proposed. We use multi-band (400-1600 nm) bulge-disc decompositions of massive galaxies in the redshift range 0<z<2 to explore the…

We study galaxy pairs in the field selected from the 100 K public release of the 2dF galaxy redshift survey. Our analysis provides a well defined sample of 1258 galaxy pairs, a large database suitable for statistical studies of galaxy…

Astrophysics · Physics 2009-11-07 D. G. Lambas , P. B. Tissera , M. Sol Alonso , Georgina Coldwell

We study the star formation rate (SFR), stellar mass ($M_{\star}$) and the gas metallicity (Z) for 4,636 galaxy pairs using the Galaxy And Mass Assembly (GAMA) survey. Our galaxy pairs lie in a redshift range of 0 $<$ $z$ $<$ 0.35, mass…

Astrophysics of Galaxies · Physics 2021-01-20 L. E. Garduño , M. A. Lara-López , O. López-Cruz , A. M. Hopkins , M. S. Owers , K. A. Pimbblet , B. W. Holwerda

We use CANUCS JWST/NIRCam imaging of galaxies behind the gravitationally-lensing cluster MACS J0417.5-1154 to investigate star formation burstiness in low-mass ($M_\star\sim10^8\ M_\odot$) galaxies at $z\sim4.7-6.5$. Our sample of 123…

The star formation rate (SFR) of galaxies can change due to interactions between galaxies, stellar feedback ejection of gas into the circumgalactic medium, and energy injection from accretion onto black holes. However, it is not clear which…

Astrophysics of Galaxies · Physics 2023-11-07 Ian E. Wolter , Michelle A. Berg , John Chisholm

A growing body of evidence indicates that the star formation rate per unit stellar mass (sSFR) decreases with increasing mass in normal "main-sequence" star forming galaxies. Many processes have been advocated as responsible for such a…

We investigate the relationship between environment and the galaxy main sequence (the relationship between stellar mass and star formation rate) and also the relationship between environment and radio luminosity (P$_{\rm 1.4GHz}$) to shed…

Astrophysics of Galaxies · Physics 2020-10-21 S. M. Randriamampandry , M. Vaccari , K. M. Hess

Stellar mass, size, and star formation rate (SFR) are fundamental properties that encode the structural and evolutionary states of galaxies. Observations reveal a mass-SFR-size relation whereby galaxies become more compact both above and…

Astrophysics of Galaxies · Physics 2026-03-03 Jiani Chu , Dandan Xu , Enci Wang , Stijn Wuyts

We explore the significance of bars in triggering central star formation (SF) and AGN activity for spiral galaxy evolution using a volume-limited sample with $0.020<z<0.055$, $M_{\rm r}<-19.5$, and $\sigma>70\rm km s^{-1}$ selected from…

Astrophysics of Galaxies · Physics 2020-09-09 Minbae Kim , Yun-Young Choi , Sungsoo S. Kim
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