Professor Alastair Edge's Outputs (7)

LOFAR high-band antenna observations of the Perseus cluster: The discovery of a giant radio halo (2024)
Journal Article
van Weeren, R. J., Timmerman, R., Vaidya, V., Gendron-Marsolais, M.-L., Botteon, A., Roberts, I. D., Hlavacek-Larrondo, J., Bonafede, A., Brüggen, M., Brunetti, G., Cassano, R., Cuciti, V., Edge, A. C., Gastaldello, F., Groeneveld, C., & Shimwell, T. W. (2024). LOFAR high-band antenna observations of the Perseus cluster: The discovery of a giant radio halo. Astronomy & Astrophysics, 692, Article A12. https://doi.org/10.1051/0004-6361/202451618

The Perseus cluster is the brightest X-ray cluster in the sky and is known as a cool-core galaxy cluster. Being a very nearby cluster, it has been extensively studied. This has provided a comprehensive view of the physical processes that operate in t... Read More about LOFAR high-band antenna observations of the Perseus cluster: The discovery of a giant radio halo.

The SPT-Chandra BCG Spectroscopic Survey. I. Evolution of the Entropy Threshold for ICM Cooling and AGN Feedback in Galaxy Clusters over the Last 10 Gyr (2024)
Journal Article
Calzadilla, M. S., McDonald, M., Benson, B. A., Bleem, L. E., Croston, J. H., Donahue, M., Edge, A. C., Floyd, B., Garmire, G. P., Hlavacek-Larrondo, J., Huynh, M. T., Khullar, G., Kraft, R. P., McNamara, B. R., Noble, A. G., Romero, C. E., Ruppin, F., Somboonpanyakul, T., & Voit, G. M. (2024). The SPT-Chandra BCG Spectroscopic Survey. I. Evolution of the Entropy Threshold for ICM Cooling and AGN Feedback in Galaxy Clusters over the Last 10 Gyr. The Astrophysical Journal, 976(2), Article 169. https://doi.org/10.3847/1538-4357/ad8916

We present a multiwavelength study of the brightest cluster galaxies (BCGs) in a sample of the 95 most massive galaxy clusters selected from the South Pole Telescope Sunyaev–Zeldovich (SZ) survey. Our sample spans a redshift range of 0.3 < z < 1.7, a... Read More about The SPT-Chandra BCG Spectroscopic Survey. I. Evolution of the Entropy Threshold for ICM Cooling and AGN Feedback in Galaxy Clusters over the Last 10 Gyr.

The KALEIDOSCOPE survey : A new strong and weak gravitational lensing view of the massive galaxy cluster MACS J1423.8+2404 (2024)
Journal Article
Patel, N. R., Jauzac, M., Niemiec, A., Lagattuta, D., Mahler, G., Beauchesne, B., Edge, A., Ebeling, H., & Limousin, M. (2024). The KALEIDOSCOPE survey : A new strong and weak gravitational lensing view of the massive galaxy cluster MACS J1423.8+2404. Monthly Notices of the Royal Astronomical Society, 533(4), 4500-4514. https://doi.org/10.1093/mnras/stae2069

We present a combined strong and weak gravitational-lensing analysis of the massive galaxy cluster MACS J1423.8+2404 (z = 0.545, MACS J1423 hereafter), one of the most dynamically relaxed and massive cool-core clusters discovered in the MAssive Clust... Read More about The KALEIDOSCOPE survey : A new strong and weak gravitational lensing view of the massive galaxy cluster MACS J1423.8+2404.

Two distinct molecular cloud populations detected in massive galaxies (2024)
Journal Article
Rose, T., McNamara, B. R., Combes, F., Edge, A. C., McDonald, M., O’Sullivan, E., Russell, H., Fabian, A. C., Ferland, G., Salomé, P., & Tremblay, G. (2024). Two distinct molecular cloud populations detected in massive galaxies. Monthly Notices of the Royal Astronomical Society, 533(1), 771-794. https://doi.org/10.1093/mnras/stae1831

We present new ALMA observations of CO, CN, CS, HCN, and HCO
absorption seen against the bright and compact radio continuum sources of eight galaxies. Combined with archival observations, they reveal two distinct populations of molecular clouds, wh... Read More about Two distinct molecular cloud populations detected in massive galaxies.

First evidence of a connection between cluster-scale diffuse radio emission in cool-core galaxy clusters and sloshing features (2024)
Journal Article
Biava, N., Bonafede, A., Gastaldello, F., Botteon, A., Brienza, M., Shimwell, T. W., …Tasse, C. (2024). First evidence of a connection between cluster-scale diffuse radio emission in cool-core galaxy clusters and sloshing features. Astronomy & Astrophysics, 686, Article A82. https://doi.org/10.1051/0004-6361/202348045

Context. Radio observations of a few cool-core galaxy clusters have revealed the presence of diffuse emission on cluster scales, similar to what was found in merging clusters in the form of radio halos. These sources might suggest that a minor merger... Read More about First evidence of a connection between cluster-scale diffuse radio emission in cool-core galaxy clusters and sloshing features.

High-spectral-resolution Observations of the Optical Filamentary Nebula Surrounding NGC 1275 (2024)
Journal Article
Vigneron, B., Hlavacek-Larrondo, J., Rhea, C. L., Gendron-Marsolais, M., Lim, J., Reinheimer, J., …Werner, N. (2024). High-spectral-resolution Observations of the Optical Filamentary Nebula Surrounding NGC 1275. Astrophysical Journal, 962(1), Article 96. https://doi.org/10.3847/1538-4357/ad0fd8

We present new high-spectral-resolution observations (R = λ/Δλ = 7000) of the filamentary nebula surrounding NGC 1275, the central galaxy of the Perseus cluster. These observations have been obtained with SITELLE, an imaging Fourier transform spectro... Read More about High-spectral-resolution Observations of the Optical Filamentary Nebula Surrounding NGC 1275.

A massive multiphase plume of gas in Abell 2390’s brightest cluster galaxy (2024)
Journal Article
Rose, T., McNamara, B. R., Combes, F., Edge, A. C., Russell, H., Salomé, P., …Tremblay, G. (2024). A massive multiphase plume of gas in Abell 2390’s brightest cluster galaxy. Monthly Notices of the Royal Astronomical Society, 528(2), 3441-3455. https://doi.org/10.1093/mnras/stae213

We present new ALMA CO(2-1) observations tracing 2.2 × 1010 M. of molecular gas in Abell 2390’s brightest cluster galaxy, where half the gas is located in a one-sided plume extending 15 kpc out from the galaxy centre. This molecular gas has a smooth... Read More about A massive multiphase plume of gas in Abell 2390’s brightest cluster galaxy.