2.6k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Instituto Superior TécnicoPT388 papers
- Centro de Física Teórica de Partículas54 papers
- University of ViennaAT37 papers
- Centre National de la Recherche ScientifiqueFR34 papers
- University of LisbonPT34 papers
- University of MississippiUS31 papers
- Universitat de ValènciaES27 papers
- California Institute of TechnologyUS25 papers
- University of CoimbraPT19 papers
- European Organization for Nuclear ResearchCH18 papers
- Instituto de TelecomunicaçõesPT18 papers
- Instituto Politécnico de LisboaPT17 papers
25 papers · 1 filter
The 21 cm signal and the interplay between dark matter annihilations and astrophysical processes
Laura Lopez-Honorez, Olga Mena, Ángeles Moliné +2
Future dedicated radio interferometers, including HERA and SKA, are very promising tools that aim to study the epoch of reionization and beyond via measurements of the 21 cm signal…
Characterization of subhalo structural properties and implications for dark matter annihilation signals
Ángeles Moliné, Miguel A. Sánchez-Conde, Sergio Palomares-Ruiz +1
A prediction of the standard LCDM cosmology is that dark matter (DM) halos are teeming with numerous self-bound substructure, or subhalos. The precise properties of these subhalos…
Isotropic extragalactic flux from dark matter annihilations: lessons from interacting dark matter scenarios
Ángeles Moliné, Jascha A. Schewtschenko, Sergio Palomares-Ruiz +2
The extragalactic gamma-ray and neutrino emission may have a contribution from dark matter (DM) annihilations. In the case of discrepancies between observations and standard predic…
Galaxy and Mass Assembly (GAMA): The evolution of bias in the radio source population to z ~ 1.5
S. N. Lindsay, M. J. Jarvis, M. G. Santos +8
We present a large-scale clustering analysis of radio galaxies in the Very Large Array (VLA) Faint Images of the Radio Sky at Twenty-cm (FIRST) survey over the Galaxy And Mass Asse…
Probing the accelerating Universe with radio weak lensing in the JVLA Sky Survey
M. L. Brown, F. B. Abdalla, A. Amara +48
We outline the prospects for performing pioneering radio weak gravitational lensing analyses using observations from a potential forthcoming JVLA Sky Survey program. A large-scale…
Foreground contamination in Ly-alpha intensity mapping during the epoch of reionization
Yan Gong, Marta Silva, Asantha Cooray +1
The intensity mapping of Ly-alpha emission during the epoch of reionization (EoR) will be contaminated by foreground emission lines from lower redshifts. We calculate the mean inte…
Constraining Primordial Black-Hole Bombs through Spectral Distortions of the Cosmic Microwave Background
Paolo Pani, Abraham Loeb
We consider the imprint of superradiant instabilities of nonevaporating primordial black holes (PBHs) on the spectrum of the cosmic microwave background (CMB). In the radiation dom…
Probing reionization with LOFAR using 21-cm redshift space distortions
Hannes Jensen, Kanan K. Datta, Garrelt Mellema +24
One of the most promising ways to study the epoch of reionization (EoR) is through radio observations of the redshifted 21-cm line emission from neutral hydrogen. These observation…
Constraints on dark matter annihilation from CMB observations before Planck
Laura Lopez-Honorez, Olga Mena, Sergio Palomares-Ruiz +1
We compute the bounds on the dark matter (DM) annihilation cross section using the most recent Cosmic Microwave Background measurements from WMAP9, SPT'11 and ACT'10. We consider D…
Probing the Pre-Reionization Epoch with Molecular Hydrogen Intensity Mapping
Yan Gong, Asantha Cooray, Mario G. Santos
Molecular hydrogen is now understood to be the main coolant of the primordial gas clouds leading to the formation of the very first stars and galaxies. The line emissions associate…
A novel approach in the WIMP quest: Cross-Correlation of Gamma-Ray Anisotropies and Cosmic Shear
S. Camera, M. Fornasa, N. Fornengo +1
Both cosmic shear and cosmological gamma-ray emission stem from the presence of Dark Matter (DM) in the Universe: DM structures are responsible for the bending of light in the weak…
Reionization and the Cosmic Dawn with the Square Kilometre Array
Garrelt Mellema, León Koopmans, Filipe Abdalla +25
The Square Kilometre Array (SKA) will have a low frequency component (SKA-low) which has as one of its main science goals the study of the redshifted 21cm line from the earliest ph…
The Near-IR Background Intensity and Anisotropies During The Epoch of Reionization
Asantha Cooray, Yan Gong, Joseph Smidt +1
A fraction of the extragalactic near-infrared (near-IR) background light involves redshifted photons from the ultraviolet (UV) emission from galaxies present during reionization at…
Intensity Mapping of Lyman-alpha Emission During the Epoch of Reionization
Marta B. Silva, Mario G. Santos, Yan Gong +2
We calculate the absolute intensity and anisotropies of the Lyman-alpha radiation field present during the epoch of reionization. We consider emission from both galaxies and the in…
Impact of Redshift Information on Cosmological Applications with Next-Generation Radio Surveys
Stefano Camera, Mário G. Santos, David J. Bacon +5
In this paper, we explore how the forthcoming generation of large-scale radio continuum surveys, with the inclusion of some degree of redshift information, can constrain cosmologic…
Accelerating f(T) gravity models constrained by recent cosmological data
Vincenzo F. Cardone, Ninfa Radicella, Stefano Camera
Generalised Teleparallel gravity, also referred to as f(T) gravity, has been recently proposed as an extended theory of gravitation able to give rise to an accelerated expansion in…
Weak lensing peak count as a probe of f(R) theories
V. F. Cardone, S. Camera, R. Mainini +4
Weak gravitational lensing by galaxy clusters on faint higher redshift galaxies has been traditionally used to study the cluster mass distribution and as a tool to identify cluster…
An updated analysis of two classes of f(R) theories of gravity
Vincenzo F. Cardone, Stefano Camera, Antonaldo Diaferio
The observed accelerated cosmic expansion can be a signature of fourth\,-\,order gravity theories, where the acceleration of the Universe is a consequence of departures from Einste…
The OH line contamination of 21 cm intensity fluctuation measurements for z=1~4
Yan Gong, Xuelei Chen, Marta Silva +2
The large-scale structure of the Universe can be mapped with unresolved intensity fluctuations of the 21 cm line. The power spectrum of the intensity fluctuations has been proposed…
Cosmological Measurements with Forthcoming Radio Continuum Surveys
Alvise Raccanelli, Gong-Bo Zhao, David J. Bacon +11
We present forecasts for constraints on cosmological models which can be obtained by forthcoming radio continuum surveys: the wide surveys with the LOw Frequency ARray (LOFAR), Aus…
Cosmology of Horava-Lifshitz f(R) Gravity
Sayan K. Chakrabarti, Koushik Dutta, Anjan A. Sen
We discuss the cosmology of recently proposed Horava-Lifshitz f(R) gravity. In particular, we derive the modified Hubble equation that reduces to the standard HL gravity case in ap…
Intensity Mapping of the [CII] Fine Structure Line during the Epoch of Reionization
Yan Gong, Asantha Cooray, Marta Silva +4
The atomic CII fine-structure line is one of the brightest lines in a typical star-forming galaxy spectrum with a luminosity ~ 0.1% to 1% of the bolometric luminosity. It is potent…
Final Analysis and Results of the Phase II SIMPLE Dark Matter Search
M. Felizardo, T. A. Girard, T. Morlat +14
We report the final results of the Phase II SIMPLE measurements, comprising two run stages of 15 superheated droplet detectors each, the second stage including an improved neutron…
Primordial non-Gaussianity from the 21 cm Power Spectrum during the Epoch of Reionization
Shahab Joudaki, Olivier Dore, Luis Ferramacho +2
Primordial non-Gaussianity is a crucial test of inflationary cosmology. We consider the impact of non-Gaussianity on the ionization power spectrum from 21 cm emission during the ep…