التفاصيل البيبلوغرافية
| العنوان: |
First light and reionization epoch simulations (FLARES) IX : the physical mechanisms driving compact galaxy formation and evolution |
| المؤلفون: |
Roper, William J., Lovell, Christopher C., Vijayan, Aswin P., Irodotou, Dimitrios, Kuusisto, Jussi K., Matharu, Jasleen, Seeyave, Louise T. C., Thomas, Peter A., Wilkins, Stephen M. |
| المساهمون: |
Particle Physics and Astrophysics |
| بيانات النشر: |
Oxford University Press |
| سنة النشر: |
2023 |
| المجموعة: |
Helsingfors Universitet: HELDA – Helsingin yliopiston digitaalinen arkisto |
| مصطلحات موضوعية: |
Galaxies: evolution, Galaxies: formation, Galaxies: high-redshift, Galaxies: star formation, Astronomy, Space science |
| الوصف: |
In the First Light And Reionization Epoch Simulations (FLARES) suite of hydrodynamical simulations, we find the high-redshift (z > 5) intrinsic size-luminosity relation is, surprisingly, negatively sloped. However, after including the effects of dust attenuation, we find a positively sloped UV observed size-luminosity relation in good agreement with other simulated and observational studies. In this work, we extend this analysis to probe the underlying physical mechanisms driving the formation and evolution of the compact galaxies driving the negative size-mass/size-luminosity relation. We find the majority of compact galaxies (R-1/2, (star) < 1 pkpc, which drive the negative slope of the size-mass relation, have transitioned from extended to compact sizes via efficient centralized cooling, resulting in high specific star formation rates in their cores. These compact stellar systems are enshrouded by non-star-forming gas distributions as much as 100 times larger than their stellar counterparts. By comparing with galaxies from the EAGLE simulation suite, we find that these extended gas distributions 'turn on' and begin to form stars between z = 5 and 0 leading to increasing sizes, and thus the evolution of the size-mass relation from a negative to a positive slope. This explicitly demonstrates the process of inside-out galaxy formation in which compact bulges form earlier than the surrounding discs. ; Peer reviewed |
| نوع الوثيقة: |
article in journal/newspaper |
| وصف الملف: |
application/pdf |
| اللغة: |
English |
| Relation: |
We thank the EAGLE team for their efforts in developing the EAGLE simulation code. We also wish to acknowledge the following open source software packages used in the analysis: scipy (Virtanen et al. 2020), Astropy (Robitaille et al. 2013), CMasher (van der Velden 2020), and matplotlib (Hunter 2007). This work used the DiRAC@Durham facility managed by the Institute for Computational Cosmology on behalf of the STFC DiRAC HPC Facility (www.dirac.ac.uk). The equipment was funded by BEIS capital funding via STFC capital grants ST/K00042X/1, ST/P002293/1, ST/R002371/1, and ST/S002502/1, Durham University and STFC operations grant ST/R000832/1. DiRAC is part of the National e-Infrastructure. The EAGLE simulations were performed using the DiRAC-2 facility at Durham, managed by the ICC, and the PRACE facility Curie based in France at TGCC, CEA, Bruyeres-leChatel. WJR acknowledges support from an STFC studentship. CCL acknowledges support from a Dennis Sciama fellowship funded by the University of Portsmouth for the Institute of Cosmology and Gravitation. DI acknowledges support by the European Research Council via ERC Consolidator Grant KETJU (no. 818930). The Cosmic Dawn Center (DAWN) is funded by the Danish National Research Foundation under grant no. 140. We list here the roles and contributions of the authors according to the Contributor Roles Taxonomy (CRediT).5 William J. Roper: conceptualization, data curation, methodology, investigation, formal analysis, visualization, writing - original draft. Christopher C. Lovell and Aswin P. Vijayan: data curation, writing - review and editing. Dimitrios Irodotou, Jussi Kuusisto, Jasleen Matharu, and Louise Seeyave: writing - review and editing. Peter Thomas: conceptualization, resources, writing - review and editing. Stephen M. Wilkins: conceptualization, writing - review and editing; Roper , W J , Lovell , C C , Vijayan , A P , Irodotou , D , Kuusisto , J K , Matharu , J , Seeyave , L T C , Thomas , P A & Wilkins , S M 2023 , ' First light and reionization epoch simulations (FLARES) IX : the physical mechanisms driving compact galaxy formation and evolution ' , Monthly Notices of the Royal Astronomical Society , vol. 526 , no. 4 , pp. 6128-6144 . https://doi.org/10.1093/mnras/stad2746; ORCID: /0000-0003-2946-8080/work/150712603; http://hdl.handle.net/10138/568730; ec6e887f-d391-4c07-adf9-6b299270eba3; 85176913888; 001092493900019 |
| الاتاحة: |
http://hdl.handle.net/10138/568730 |
| Rights: |
cc_by ; info:eu-repo/semantics/openAccess ; openAccess |
| رقم الانضمام: |
edsbas.5EB3A417 |
| قاعدة البيانات: |
BASE |