Asymmetric Star Formation Efficiency Due to Ram Pressure Stripping
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 clu...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2016-12-01
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| Series: | Galaxies |
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| Online Access: | http://www.mdpi.com/2075-4434/4/4/77 |
| _version_ | 1818648624375005184 |
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| author | Paulina Troncoso Iribarren Nelson Padilla Sergio Contreras Silvio Rodriguez Diego García-Lambas Claudia del P. Lagos |
| author_facet | Paulina Troncoso Iribarren Nelson Padilla Sergio Contreras Silvio Rodriguez Diego García-Lambas Claudia del P. Lagos |
| author_sort | Paulina Troncoso Iribarren |
| collection | DOAJ |
| description | 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. |
| first_indexed | 2024-12-17T01:21:23Z |
| format | Article |
| id | doaj.art-b374a10321b64d4ebf06c65e570a42ef |
| institution | Directory Open Access Journal |
| issn | 2075-4434 |
| language | English |
| last_indexed | 2024-12-17T01:21:23Z |
| publishDate | 2016-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Galaxies |
| spelling | doaj.art-b374a10321b64d4ebf06c65e570a42ef2022-12-21T22:08:48ZengMDPI AGGalaxies2075-44342016-12-01447710.3390/galaxies4040077galaxies4040077Asymmetric Star Formation Efficiency Due to Ram Pressure StrippingPaulina Troncoso Iribarren0Nelson Padilla1Sergio Contreras2Silvio Rodriguez3Diego García-Lambas4Claudia del P. Lagos5Centro de Astro-Ingeniería and Instituto de Astrofísica, Pontificia Universidad Católica de Chile, Avda. Vicuña Mackenna 4860, 782-0436 Macul, Santiago, ChileCentro de Astro-Ingeniería and Instituto de Astrofísica, Pontificia Universidad Católica de Chile, Avda. Vicuña Mackenna 4860, 782-0436 Macul, Santiago, ChileCentro de Astro-Ingeniería and Instituto de Astrofísica, Pontificia Universidad Católica de Chile, Avda. Vicuña Mackenna 4860, 782-0436 Macul, Santiago, ChileInstituto de Astronomía Teórica y Experimental, UNC-CONICET, Córdoba X5000BGR, ArgentinaInstituto de Astronomía Teórica y Experimental, UNC-CONICET, Córdoba X5000BGR, ArgentinaInternational Centre for Radio Astronomy Research (ICRAR), M468, University of Western Australia, 35 Stirling Hwy, Crawley, WA 6009, AustraliaPrevious 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.http://www.mdpi.com/2075-4434/4/4/77galaxyclustersram pressurejellyfish galaxies |
| spellingShingle | Paulina Troncoso Iribarren Nelson Padilla Sergio Contreras Silvio Rodriguez Diego García-Lambas Claudia del P. Lagos Asymmetric Star Formation Efficiency Due to Ram Pressure Stripping Galaxies galaxy clusters ram pressure jellyfish galaxies |
| title | Asymmetric Star Formation Efficiency Due to Ram Pressure Stripping |
| title_full | Asymmetric Star Formation Efficiency Due to Ram Pressure Stripping |
| title_fullStr | Asymmetric Star Formation Efficiency Due to Ram Pressure Stripping |
| title_full_unstemmed | Asymmetric Star Formation Efficiency Due to Ram Pressure Stripping |
| title_short | Asymmetric Star Formation Efficiency Due to Ram Pressure Stripping |
| title_sort | asymmetric star formation efficiency due to ram pressure stripping |
| topic | galaxy clusters ram pressure jellyfish galaxies |
| url | http://www.mdpi.com/2075-4434/4/4/77 |
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