14.2k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Goddard Space Flight CenterUS361 papers
- Marshall Space Flight CenterUS357 papers
- Centre National de la Recherche ScientifiqueFR280 papers
- Max Planck Institute for Extraterrestrial PhysicsDE240 papers
- University of Maryland, College ParkUS239 papers
- Universities Space Research AssociationUS214 papers
- Stanford UniversityUS212 papers
- National Institute for AstrophysicsIT196 papers
- University of Rome Tor VergataIT184 papers
- Commissariat à l'Énergie Atomique et aux Énergies AlternativesFR179 papers
- University of PaduaIT178 papers
- Istituto Nazionale di Fisica Nucleare, Roma Tor VergataIT175 papers
90 papers · 1 filter
Reanalysing large-scale structure using an updated gamma-ray burst spatial density approach
Istvan Horvath, Zsolt Bagoly, Jon Hakkila +6
In the past few decades, large universal structures have been found that challenge the homogeneity and isotropy expected in standard cosmological models. This study examines burst…
Bound or blown: the fate of hot gas in galaxy groups
R. Seppi, D. Eckert, J. Schaye +14
The impact of AGN feedback on the hot gas content of galaxy groups remains a key uncertainty in galaxy formation and its connection to the large scale structure of the Universe. We…
Gas rotation and turbulence in the galaxy cluster Abell 2029
T. Bartalesi, A. Simionescu, S. Ettori +4
We constrain the rotation and turbulent support of the intracluster medium (ICM) in Abell 2029 (A2029), using dynamical equilibrium models and a combination of state-of-the-art X-r…
The impact of strong feedback on galaxy group scaling relations
D. Eckert, R. Seppi, J. Braspenning +16
Feedback from active supermassive black holes alters the distribution of matter in the Universe by injecting energy in the neighbouring hot gaseous medium, which leads to ejection…
Electron-Ion Equilibration in the Merging Galaxy Cluster A665
Christian Norseth, Daniel R. Wik, Craig L. Sarazin +2
Galaxy cluster mergers drive powerful shock fronts that heat the intracluster medium (ICM) and accelerate particles, redistributing the energy in a merger. A665 is one of only a fe…
Modelling the selection of galaxy groups with end to end simulations
R. Seppi, D. Eckert, A. Finoguenov +13
Feedback from supernovae and AGN shapes galaxy formation and evolution, yet its impact remains unclear. Galaxy groups offer a crucial probe, as their binding energy is comparable t…
X-ray emission in IllustrisTNG circum-cluster environments. II -- Possible origins of the soft X-ray excess emission
Celine Gouin, Daniela Galárraga-Espinosa, Massimiliano Bonamente +9
An excess of soft X-ray emission (0.2-1 keV) above the contribution from the hot intra-cluster medium (ICM) has been detected in a number of galaxy clusters, including the Coma clu…
Scanning the Universe for Large-Scale Structures using Gamma-Ray Bursts
Istvan Horvath, Zsolt Bagoly, Lajos G. Balazs +5
In the past few decades, large universal structures have been found that challenge the homogeneity and isotropy expected in standard cosmological models. The largest of these, iden…
MeerKAT discovery of GHz radio emission extending from Abell 3017 toward Abell 3016
Dan Hu, Norbert Werner, Haiguang Xu +18
Context: The clusters Abell 3017 and Abell 3016 are located within a large-scale filament. A prominent X-ray bridge has been detected connecting the two clusters and a potential ga…
The interface of gravity and dark energy
Kristen Lackeos, Richard Lieu
At sufficiently large radii dark energy modifies the behavior of (a) bound orbits around a galaxy and (b) virialized gas in a cluster of galaxies. Dark energy also provides a natur…
Lensed Type Ia Supernova "Encore" at z=2: The First Instance of Two Multiply-Imaged Supernovae in the Same Host Galaxy
J. D. R. Pierel, A. B. Newman, S. Dhawan +60
A bright (=24 mag), supernova (SN) candidate was discovered in JWST/NIRCam imaging acquired on 2023 November 17. The SN is quintuply-imaged as a result o…
JWST Photometric Time-Delay and Magnification Measurements for the Triply-Imaged Type Ia "Supernova H0pe" at z = 1.78
J. D. R. Pierel, B. L. Frye, M. Pascale +60
Supernova (SN) H0pe is a gravitationally lensed, triply-imaged, Type Ia SN (SN Ia) discovered in James Webb Space Telescope imaging of the PLCK G165.7+67.0 cluster of galaxies. Wel…
Soft X-ray emission from warm gas in IllustrisTNG circum-cluster environments
Celine Gouin, Massimiliano Bonamente, Daniela Galarraga-Espinosa +2
Context. Whereas X-ray clusters are extensively used for cosmology, their idealistic modelling, through the hypotheses of spherical symmetry and hydrostatic equilibrium, are more a…
Scale invariant curvature perturbations from a spontaneously decaying scalar field
Richard Lieu, Chun-Hui Shi
The evolution of superhorizon curvature perturbations in a two-component interacting universe is considered. It is found that adiabatic modes conserve the total curvature perturbat…
A search for the missing baryons with X--ray absorption lines towards the blazar 1ES 1553+113
D. Spence, M. Bonamente, J. Nevalainen +5
This paper presents an analysis of XMM X--ray spectra of the quasar 1ES 1553+113, in search for absorption lines from the intervening warm--hot intergalactic medium. A search for O…
Cosmic metal invaders: Intergalactic OVII as a tracer of the warm-hot intergalactic medium within cosmic filaments in the EAGLE simulation
T. Tuominen, J. Nevalainen, P. Heinämäki +5
The current observational status of the hot (log T(K) > 5.5) warm-hot intergalactic medium (WHIM) remains incomplete. While recent observations from stacking large numbers of Cosmi…
LensWatch: I. Resolved HST Observations and Constraints on the Strongly-Lensed Type Ia Supernova 2022qmx ("SN Zwicky")
J. D. R. Pierel, N. Arendse, S. Ertl +39
Supernovae (SNe) that have been multiply-imaged by gravitational lensing are rare and powerful probes for cosmology. Each detection is an opportunity to develop the critical tools…
Suzaku Observations of the Cluster Outskirts and Intercluster Filament in the Triple Merger Cluster Abell 98
Gabriella E. Alvarez, Scott W. Randall, Yuanyuan Su +5
We present Suzaku observations of the Abell 98 (A98) triple galaxy cluster system and the purported intercluster filament. The three subclusters are expected to lie along a large s…
A WHIM origin for the soft excess emission in the Coma cluster
M. Bonamente, M. Mirakhor, R. Lieu +1
This paper provides a new analysis of ROSAT observations of the Coma cluster, to determine the amount of soft X--ray radiation in excess of the contribution from the hot intra--clu…
The Scaling Relation between Galaxy Luminosity and WHIM Density from EAGLE Simulations with application to SDSS data
Patrick Holt, Toni Tuominen, Jukka Nevalainen +4
This paper presents an updated scaling relation between the optical luminosity density (LD) of galaxies in the band and the density of the warm-hot intergalactic medium (WHIM)…
The velocity structure of the Intracluster Medium of the Centaurus cluster
E. Gatuzz, J. S. Sanders, R. Canning +7
There are few direct measurements of ICM velocity structure, despite its importance for understanding clusters. We present a detailed analysis of the velocity structure of the Cent…
Cluster outskirts and their connection to the cosmic web
Stephen Walker, Erwin Lau
We review the latest developments in our X-ray observational and theoretical understanding of the outskirts of galaxy clusters, and their connection to the cosmic web. The faint cl…
A targeted search for strongly lensed supernovae with the Las Cumbres Observatory
Peter Craig, Kyle O'Connor, Sukanya Chakrabarti +4
Gravitationally lensed supernovae (glSNe) are of interest for time delay cosmology and SN physics. However, glSNe detections are rare, owing to the intrinsic rarity of SN explosion…
A detailed study of the bridge of excess X-ray emission between the galaxy clusters Abell 2029 and Abell 2033
M. S. Mirakhor, S. A. Walker, J. Runge
We examine Suzaku, XMM-Newton, and Chandra observations of the Abell 2029/2033 system to investigate the nature of a bridge of X-ray emission joining the two galaxy clusters. By mo…