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Self-interacting dark matter on small and large scales
by Camila A. Correa
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Submission summary
| Authors (as registered SciPost users): | Camila Correa |
| Submission information | |
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| Preprint Link: | scipost_202208_00056v1 (pdf) |
| Date submitted: | 2022-08-18 17:26 |
| Submitted by: | Correa, Camila |
| Submitted to: | SciPost Physics Proceedings |
| Proceedings issue: | 14th International Conference on Identification of Dark Matter (IDM2022) |
| Ontological classification | |
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| Academic field: | Physics |
| Specialties: |
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| Approach: | Theoretical |
Abstract
In the self-interacting dark matter paradigm (hereafter SIDM), dark matter (DM) is assumed to have non-gravitational interactions with itself. SIDM has been constrained by observations of galaxy clusters. More recently, measurements of large DM densities at the center of the Milky Way's galaxy satellites are indicating that DM-DM interactions can potentially induce gravothermal core collapse. In this proceeding an overview of the combined measurements of cluster-size galaxies and kinematics of local satellite galaxies is used to argue that DM interactions should depend on the relative velocity of the DM particles.
Current status:
Reports on this Submission
Anonymous Report 1 on 2022-9-27 (Invited Report)
- Cite as: Anonymous, Report on arXiv:scipost_202208_00056v1, delivered 2022-09-27, doi: 10.21468/SciPost.Report.5780
Strengths
clearly written
Report
In this proceeding author makes very understandable and wide review on latest measurements and modelling that place constraints on the self-interacting dark matter paradigm.
The manuscript is clearly written and well organised. It is also suitably formatted for publication.
I recommend the manuscript for publication with some recommendations:
- I would recommend to include for Figure 1 and 2 the references in the capture as well.
- Provide a reference for “isothermal Jeans modelling”.
- On the page 2 “This minimum cross section of 1 cm2/g, needed to solve the cusp-core problem of dwarf galaxies is highlighted in Fig. 2. ” is number of picture is correct?
Requested changes
- I would recommend to include for Figure 1 and 2 the references in the capture as well.
- Provide a reference for “isothermal Jeans modelling”.
- On the page 2 “This minimum cross section of 1 cm2/g, needed to solve the cusp-core problem of dwarf galaxies is highlighted in Fig. 2. ” is number of picture is correct?
Author: Camila Correa on 2022-12-05 [id 3102]
(in reply to Report 1 on 2022-09-27)Dear editor,
Apologies for the delay in providing an updated manuscript. I have included the requested changes from the reviewer.
Regarding, the last comment (whether on Page 2 the reference to Fig. 2 is correct?), yes it is. In the Figure I highlighted 1 cm^2/g as the minimum cross section needed to form cores. On top of this minimum value I included the respective references that reach to this conclusion.
Regards,
Camila Correa