Accelerated structural evolution of galaxies in a starbursting cluster at z=2.51

Abstract

Structural properties of cluster galaxies during their peak formation epoch, $z\sim 2-4$ provide key information on whether and how environment affects galaxy formation and evolution. Based on deep HST/WFC3 imaging towards the z=2.51 cluster, J1001, we explore environmental effects on the structure, color gradients, and stellar populations of a statistical sample of cluster SFGs. We find that the cluster SFGs are on average smaller than their field counterparts. This difference is most pronounced at the high-mass end ($M_{\star }>10^{10.5}{M}_{\odot }$) with nearly all of them lying below the mass-size relation of field galaxies. The high-mass cluster SFGs are also generally old with a steep negative color gradient, indicating an early formation time likely associated with strong dissipative collapse. For low-mass cluster SFGs, we unveil a population of compact galaxies with steep positive color gradients that are not seen in the field. This suggests that the low-mass compact cluster SFGs may have already experienced strong environmental effects, e.g., tidal/ram pressure stripping, in this young cluster. These results provide evidence on the environmental effects at work in the earliest formed clusters with different roles in the formation of low and high-mass galaxies.

arXiv comment13 pages, 10 figures, 1 table

References in corpus (49)

• Galactic Stellar and Substellar Initial Mass Function
• Star Formation in Galaxies Along the Hubble Sequence
• The Dust Content and Opacity of Actively Star-Forming Galaxies
• CANDELS: The Cosmic Assembly Near-infrared Deep Extragalactic Legacy Survey
• CANDELS: The Cosmic Assembly Near-infrared Deep Extragalactic Legacy Survey - The Hubble Space Telescope Observations, Imaging Data Products and Mosaics
• The Initial Mass Function of Stars: Evidence for Uniformity in Variable Systems
• 3D-HST+CANDELS: The Evolution of the Galaxy Size-Mass Distribution since $z=3$
• Environmental Effects on Late-Type Galaxies in Nearby Clusters
• The Herschel view of the dominant mode of galaxy growth from z=4 to the present day
• Inferring the star-formation histories of massive quiescent galaxies with BAGPIPES: Evidence for multiple quenching mechanisms
• PHIBSS: Unified Scaling Relations of Gas Depletion Time and Molecular Gas Fractions
• CANDELS Multi-wavelength Catalogs: Source Detection and Photometry in the GOODS-South Field
• On the Survival and Destruction of Spiral Galaxies in Clusters
• Nebular Continuum and Line Emission in Stellar Population Synthesis Models
• A wide field Hubble Space Telescope study of the cluster CL0024+16 at z=0.4. I: morphological distributions to 5 Mpc radius
• Environment and self-regulation in galaxy formation
• Evidence for Mature Bulges and an Inside-out Quenching Phase 3 Billion Years After the Big Bang
• Stellar masses from the CANDELS survey: the GOODS-South and UDS fields
• Ram Pressure Stripping in High-Density Environments
• BUDHIES II: A phase-space view of HI gas stripping and star-formation quenching in cluster galaxies
• Discovery of a galaxy cluster with a violently starbursting core at z=2.506
• Environmental Effects on Satellite Galaxies: The Link Between Concentration, Size and Colour Profile
• A massive core for a cluster of galaxies at a redshift of 4.3
• An extreme proto-cluster of luminous dusty starbursts in the early Universe
• On the evolution and environmental dependence of the star formation rate versus stellar mass relation since z~2
• A massive, distant proto-cluster at z=2.47 caught in a phase of rapid formation?
• The Spiderweb galaxy: a forming massive cluster galaxy at z~2
• WFC3 grism confirmation of the distant cluster Cl J1449+0856 at z=2.00: Quiescent and star-forming galaxy populations
• The environmental dependence of the stellar mass-size relation in STAGES galaxies
• ALMA Observations of Gas-Rich Galaxies in z~1.6 Galaxy Clusters: Evidence for Higher Gas Fractions in High-Density Environments
• Three Lyman-alpha emitting filaments converging to a massive galaxy group at z=2.91: discussing the case for cold gas infall
• MAHALO Deep Cluster Survey I. Accelerated and enhanced galaxy formation in the densest regions of a protocluster at z=2.5
• The implications of the surprising existence of a large, massive CO disk in a distant protocluster
• The stellar mass-size relation for the most isolated galaxies in the local Universe
• Metal deficiency in cluster star-forming galaxies at z=2
• The effect of the environment on the stellar mass - size relation of present-day galaxies
• Deep CO(1-0) Observations of z=1.62 Cluster Galaxies with Substantial Molecular Gas Reservoirs and Normal Star Formation Efficiencies
• On the Origin of the Hubble Sequence: I. Insights on Galaxy Color Migration from Cosmological Simulations
• Revealing environmental dependence of molecular gas content in a distant X-ray cluster at z=2.51
• HST/WFC3 grism observations of $z\sim 1$ clusters: The cluster vs. field stellar mass-size relation and evidence for size growth of quiescent galaxies from minor mergers
• Merger driven star-formation activity in Cl J1449+0856 at z=1.99 as seen by ALMA and JVLA
• Signs of environmental effects on star-forming galaxies in the Spiderweb protocluster at z=2.16
• The stellar mass versus stellar metallicity relation of star-forming galaxies at $1.6\le z\le 3.0$ and implications for the evolution of the $\alpha$-enhancement
• Evolutionary phases of gas-rich galaxies in a galaxy cluster at z=1.46
• ALMA pin-points a strong over-density of U/LIRGs in the massive cluster XCS J2215 at z=1.46
• The galaxy mass-size relation in CARLA clusters and proto-clusters at 1.4 < z < 2.8: larger cluster galaxy sizes
• Bulge formation inside quiescent lopsided stellar disks: connecting accretion, star formation and morphological transformation in a z ~ 3 galaxy group
• Starbursts with suppressed velocity dispersion revealed in a forming cluster at z=2.51
• Galaxy populations in the most distant SPT-SZ clusters -- II. Galaxy structural properties in massive clusters at 1.4<z<1.7

Cited by in corpus (6)

• JWST's PEARLS: resolved study of the stellar and dust components in starburst galaxies at cosmic noon
• JWST's first glimpse of a z > 2 forming cluster reveals a top-heavy stellar mass function
• Environmental impacts on the rest-frame UV size and morphology ofstar-forming galaxies at $z\sim 2$
• A Bending in the Size-mass Relation of Star-forming Galaxies across $0.5<z<6.0$ at a Critical Stellar Mass of $10^{10}{M}_{\odot }$ Revealed by JWST
• From the Densest Clusters to the Emptiest Voids: No Evidence For Environmental Effects on the Galaxy Size-Mass Relation at Low Redshift
• Ram-pressure stripping caught in action in a young cluster at $z=2.51$