JWST Observations of Young protoStars (JOYS) - Outflows and accretion in the 
high-mass star-forming region IRAS 23385+6053

Beuther, H.; van Dishoeck, E. F.; Tychoniec, L.; Gieser, C.; Kavanagh, P. J.; Perotti, G.; van Gelder, M. L.; Klaassen, P.; Garatti, A. Caratti o; Francis, L.; Rocha, W. R. M.; Slavicinska, K.; Ray, T.; Justtanont, K.; Linnartz, H.; Waelkens, C.; Colina, L.; Greve, T.; Güdel, M.; Henning, T.; Lagage, P.-O.; Vandenbussche, B.; Östlin, G.; Wright, G.

doi:10.1051/0004-6361/202346167

Item

ITEM ACTIONSEXPORT

Add to Basket

Local TagsRelease HistoryDetailsSummary

Released

Journal Article

JWST Observations of Young protoStars (JOYS) - Outflows and accretion in the high-mass star-forming region IRAS 23385+6053

MPS-Authors

/persons/resource/persons295440

Gieser, C.
Center for Astrochemical Studies at MPE, MPI for Extraterrestrial Physics, Max Planck Society;

External Resource

No external resources are shared

Fulltext (restricted access)

There are currently no full texts shared for your IP range.

Fulltext (public)

There are no public fulltexts stored in PuRe

Supplementary Material (public)

There is no public supplementary material available

Citation

Beuther, H., van Dishoeck, E. F., Tychoniec, L., Gieser, C., Kavanagh, P. J., Perotti, G., et al. (2023). JWST Observations of Young protoStars (JOYS) - Outflows and accretion in the high-mass star-forming region IRAS 23385+6053. Astronomy and Astrophysics, 673: A121. doi:10.1051/0004-6361/202346167.

Cite as: https://hdl.handle.net/21.11116/0000-000E-4CA4-4

Abstract

Context. X-ray observations of galaxy clusters are impacted by the presence of active galactic nuclei (AGNs) in a manner that is challenging to quantify, leading to biases in the detection and measurement of cluster properties for both astrophysics and cosmological applications.

Aims. We detect and characterise clusters contaminated by central AGNs within the XXL survey footprint and provide a systematic assessment of the cosmological impact of such systems in X-ray cluster samples.

Methods. We introduce a new automated class for AGN-contaminated (AC) clusters in the XXL source detection pipeline. The majority of these systems are otherwise missed by current X-ray cluster-detection methods. The AC selection is also effective in distinguishing AGN and cool-core presence using supplementary optical and infrared information.

Results. We present 33 AC objects, including 25 clusters in the redshift range, 0.14 ≤ z ≤ 1.03, and eight other sources with significantly peaked central profiles based on X-ray observations. Six of these are new confirmed clusters. We computed the missed fraction of the XXL survey, which is defined as the fraction of genuine clusters that are undetected due to their centrally peaked X-ray profiles. We report seven undetected AC clusters above z > 0.6, in the range where X-ray cluster detection efficiency drops significantly. The missed fraction is estimated to be at the level of 5% for the 50 square-degree XXL area. The impact on cosmological estimates from missed clusters is negligible for XXL, but it produces a tension of ∼3σ with the fiducial cosmology when considering larger survey areas.

Conclusions. This work demonstrates the first systematic attempt to quantify the percentage of missed clusters in X-ray surveys as a result of central AGN contamination. Looking towards surveys such as eROSITA and Athena, larger areas and increased sensitivity will significantly enhance cluster detection, and therefore robust methods for characterising AGN contamination will be crucial for precise cluster cosmology, particularly in the redshift z > 1 regime.