Next Article in Journal
On Effective Degrees of Freedom in the Early Universe
Next Article in Special Issue
Using the Outskirts of Galaxy Clusters to Determine Their Mass Accretion Rate
Previous Article in Journal
Nonparametric Reconstruction of the Om Diagnostic to Test ΛCDM
Previous Article in Special Issue
Galaxy Cluster Outskirts from the Thermal SZ and Non-Thermal Synchrotron Link

Asymmetric Star Formation Efficiency Due to Ram Pressure Stripping

Centro de Astro-Ingeniería and Instituto de Astrofísica, Pontificia Universidad Católica de Chile, Avda. Vicuña Mackenna 4860, 782-0436 Macul, Santiago, Chile
Instituto de Astronomía Teórica y Experimental, UNC-CONICET, Córdoba X5000BGR, Argentina
International Centre for Radio Astronomy Research (ICRAR), M468, University of Western Australia, 35 Stirling Hwy, Crawley, WA 6009, Australia
Australian Research Council Centre of Excellence for All-sky Astrophysics (CAASTRO), 44 Rosehill Street Redfern, NSW 2016, Australia
Author to whom correspondence should be addressed.
Academic Editors: Stefano Ettori and Dominique Eckert
Galaxies 2016, 4(4), 77;
Received: 6 September 2016 / Revised: 25 November 2016 / Accepted: 5 December 2016 / Published: 13 December 2016
(This article belongs to the Special Issue Exploring the Outskirts of Galaxy Clusters)
Previous works have shown that a dense cluster environment affects satellite galaxy properties and accelerates or truncates their evolutionary processes. In this work, we use the EAGLE simulation to study this effect, dissecting the galaxies in two halves: the one that is falling directly to the cluster (leading half) and the one behind (trailing half). Considering all galaxies within the virial radius of the most massive groups and clusters of the simulation ( M h a l o > 10 13 . 8 [ M ] ), we find that on average the leading half presents an enhancement of the star formation rate with respect to the trailing half. We conclude that galaxies falling into the intra-cluster medium experience a boost in star-formation in their leading half due to ram pressure. Sparse observations of jellyfish galaxies have revealed visually the enhancement of the star formation in the leading half. In order to confirm this effect statistically using observations, different cases must be investigated using the simulation as a test dataset. View Full-Text
Keywords: galaxy; clusters; ram pressure; jellyfish galaxies galaxy; clusters; ram pressure; jellyfish galaxies
Show Figures

Figure 1

MDPI and ACS Style

Troncoso Iribarren, P.; Padilla, N.; Contreras, S.; Rodriguez, S.; García-Lambas, D.; Lagos, C.D.P. Asymmetric Star Formation Efficiency Due to Ram Pressure Stripping. Galaxies 2016, 4, 77.

AMA Style

Troncoso Iribarren P, Padilla N, Contreras S, Rodriguez S, García-Lambas D, Lagos CDP. Asymmetric Star Formation Efficiency Due to Ram Pressure Stripping. Galaxies. 2016; 4(4):77.

Chicago/Turabian Style

Troncoso Iribarren, Paulina, Nelson Padilla, Sergio Contreras, Silvio Rodriguez, Diego García-Lambas, and Claudia D.P. Lagos. 2016. "Asymmetric Star Formation Efficiency Due to Ram Pressure Stripping" Galaxies 4, no. 4: 77.

Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

Back to TopTop