Table · dataset · 2023
Chandra obs. of Planck ESZ & X-ray clusters
Listed in IVOA Registry (Virtual Observatory)
Using Chandra observations, we derive the YX proxy and associated total mass measurement, M_500_^Yx^ for 147 clusters with z<0.35 from the Planck early Sunyaev-Zeldovich catalog, and for 80 clusters with z<0.22 from an X-ray flux-limited sample.
Description
We reextract the Planck Y_SZ_ measurements and obtain the corresponding mass proxy, M_500_^SZ^, from the full Planck mission maps, minimizing Malmquist bias due to observational scatter.
The masses reextracted using the more precise X-ray position and characteristic size agree with the published PSZ2 values, but yield a significant reduction in the scatter (by a factor of two) in the M_500_^SZ^-M_500_^Yx^ relation. The slope is 0.93+/-0.03, and the median ratio, M_500_^SZ^/M_500_^Yx^=0.91+/-0.01, is within the expectations from known X-ray calibration systematics. YSZ/YX is 0.88+/-0.02, in good agreement with predictions from cluster structure, and implying a low level of clumpiness.
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In agreement with the findings of the Planck Collaboration, the slope of the YSZ-D_A_^-2^Y_X_ flux relation is significantly less than unity (0.89+/-0.01). Using extensive simulations, we show that this result is not due to selection effects, intrinsic scatter, or covariance between quantities. We demonstrate analytically that changing the Y_SZ_-Y_X_ relation from apparent flux to intrinsic properties results in a best-fit slope that is closer to unity and increases the dispersion about the relation.
The redistribution resulting from this transformation implies that the best-fit parameters of the M_500_^SZ^-M_500_^Yx^ relation will be sample-dependent.
Links
Where it is published
- Reference page cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/914/58 ↗
landing page · from IVOA Registry
Documentation and papers
- ADS 2021ApJ...914...58A ui.adsabs.harvard.edu/abs/2021ApJ...914...58A ↗
publication · from IVOA Registry
Catalogue records · 2
- VOResource record dc.g-vo.org/oai.xml?verb=GetRecord&metadataPrefix=ivo_vor&identifier=ivo%3… ↗
metadata API · from IVOA Registry
- Registry record (GAVO) dc.g-vo.org/I/cds.vizier/j/apj/914/58 ↗
catalogue entry · from IVOA Registry
Topics
- Stated by source
- X-Ray
- From keywords
- Astronomy & Astrophysics
- Inferred from text
- Astronomical sciences 73%
Provenance · 1 source records, 9 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| IVOA Registry (Virtual Observatory) | ivo://cds.vizier/j/apj/914/58 | 15 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · IVOA Registry | connector:ivoa_registry@1.0.0 | |
| concepts[field].anzsrc:group:5101 | enrichment · IVOA Registry | taxonomy-embedding@1.1.0 | title+keywords+description (73%) |
| concepts[field].local:field:astronomy | mapping · IVOA Registry | connector:ivoa_registry@1.0.0 | |
| concepts[modality].ivoa_waveband:x-ray | source · IVOA Registry | connector:ivoa_registry@1.0.0 | |
| description | source · IVOA Registry | connector:ivoa_registry@1.0.0 | rr.resource.res_description |
| license_text | source · IVOA Registry | connector:ivoa_registry@1.0.0 | |
| publication_date | source · IVOA Registry | connector:ivoa_registry@1.0.0 | |
| title | source · IVOA Registry | connector:ivoa_registry@1.0.0 | rr.resource.res_title |
| updated_date | source · IVOA Registry | connector:ivoa_registry@1.0.0 |