Showing 2017 · astro-ph.COShow all

27 papers · 2 filters

astro-ph.CO2017★ 3 cited

Sparse estimation of model-based diffuse thermal dust emission

Melis Irfan, Jerome Bobin

Component separation for the Planck HFI data is primarily concerned with the estimation of thermal dust emission, which requires the separation of thermal dust from the cosmic infr…

astro-ph.CO2017★ 32 cited

Euclid: Superluminous supernovae in the Deep Survey

C. Inserra, R. C. Nichol, D. Scovacricchi +31

In the last decade, astronomers have found a new type of supernova called `superluminous supernovae' (SLSNe) due to their high peak luminosity and long light-curves. These hydrogen…

astro-ph.CO2017★ 5 cited

Y-junction intercommutations of current carrying strings

D. A. Steer, Marc Lilley, Daisuke Yamauchi +1

Under certain conditions the collision and intercommutation of two cosmic strings can result in the formation of a third string, with the three strings then remaining connected at…

astro-ph.CO2017★ 17 cited

Weak lensing magnification of SpARCS galaxy clusters

A. Tudorica, H. Hildebrandt, M. Tewes +11

Measuring and calibrating relations between cluster observables is critical for resource-limited studies. The mass-richness relation of clusters offers an observationally inexpensi…

astro-ph.CO2017★ 1.2k cited

A gravitational-wave standard siren measurement of the Hubble constant

B. P. Abbott, R. Abbott, T. D. Abbott +1308

The detection of GW170817 in both gravitational waves and electromagnetic waves heralds the age of gravitational-wave multi-messenger astronomy. On 17 August 2017 the Advanced LIGO…

astro-ph.CO2017★ 5 cited

Reconstructing matter profiles of spherically compensated cosmic regions in CDM cosmology

Paul de Fromont, Jean-Michel Alimi

The absence of a physically motivated model for large scale profiles of cosmic voids limits our ability to extract valuable cosmological information from their study. In this paper…

astro-ph.CO2017★ 57 cited

3D simulations with boosted primordial power spectra and ultracompact minihalos

Mateja Gosenca, Julian Adamek, Christian T. Byrnes +1

We perform three-dimensional simulations of structure formation in the early Universe, when boosting the primordial power spectrum on approximately kpc scales. We demonstrate that…

astro-ph.CO2017★ 70 cited

The SDSS-DR12 large-scale cross-correlation of Damped Lyman Alpha Systems with the Lyman Alpha Forest

Ignasi Pérez-Ràfols, Andreu Font-Ribera, Jordi Miralda-Escudé +9

We present a measurement of the DLA mean bias from the cross-correlation of DLA and the Ly forest, updating earlier results of Font-Ribera et al. 2012 with the final BOSS Data R…

astro-ph.CO2017★ 16 cited

Internal dark matter structure of the most massive galaxy clusters

Amandine M. C. Le Brun, Monique Arnaud, Gabriel W. Pratt +1

We investigate the evolution of the dark matter density profiles of the most massive galaxy clusters in the Universe. Using a `zoom-in' procedure on a large suite of cosmological s…

astro-ph.CO2017★ 28 cited

Recovering galaxy cluster gas density profiles with XMM-Newton and Chandra

I. Bartalucci, M. Arnaud, G. W. Pratt +6

We examine the reconstruction of galaxy cluster radial density profiles obtained from Chandra and XMM X-ray observations, using high quality data for a sample of twelve objects cov…

astro-ph.CO2017★ 26 cited

Search for Bosonic Super-WIMP Interactions with the XENON100 Experiment

XENON collaboration, E. Aprile, J. Aalbers +118

We present results of searches for vector and pseudo-scalar bosonic super-WIMPs, which are dark matter candidates with masses at the keV-scale, with the XENON100 experiment. XENON1…

astro-ph.CO2017★ 31 cited

Radio selection of the most distant galaxy clusters

E. Daddi, S. Jin, V. Strazzullo +15

We show that the most distant X-ray detected cluster known to date, ClJ1001 at z=2.506, hosts a strong overdensity of radio sources. Six of them are individually detected (within 1…

astro-ph.CO2017★ 131 cited

X-Ray morphological analysis of the Planck ESZ clusters

Lorenzo Lovisari, William R. Forman, Christine Jones +7

X-ray observations show that galaxy clusters have a very large range of morphologies. The most disturbed systems which are good to study how clusters form and grow and to test phys…

astro-ph.CO2017★ 24 cited

Witnessing the reionization history using Cosmic Microwave Background observation from Planck

Dhiraj Kumar Hazra, George F. Smoot

We constrain the history of reionization using the data from Planck 2015 Cosmic Microwave Background (CMB) temperature and polarization anisotropy observations. We also use prior c…

astro-ph.CO2017★ 269 cited

Baryon acoustic oscillations from the complete SDSS-III Ly-quasar cross-correlation function at

Hélion du Mas des Bourboux, Jean-Marc Le Goff, Michael Blomqvist +22

We present a measurement of baryon acoustic oscillations (BAO) in the cross-correlation of quasars with the Ly-forest flux-transmission at a mean redshift . The measurem…

astro-ph.CO2017★ 17 cited

Sparse reconstruction of the merging A520 cluster system

Austin Peel, François Lanusse, Jean-Luc Starck

Merging galaxy clusters present a unique opportunity to study the properties of dark matter in an astrophysical context. These are rare and extreme cosmic events in which the bulk…

astro-ph.CO2017★ 6 cited

Refined Study of Isocurvature Fluctuations in the Curvaton Scenario

Naoya Kitajima, David Langlois, Tomo Takahashi +1

We revisit the generation of dark matter isocurvature perturbations in the curvaton model in greater detail, both analytically and numerically. As concrete examples, we investigate…

astro-ph.CO2017★ 37 cited

Mapping the hot gas temperature in galaxy clusters using X-ray and Sunyaev-Zel'dovich imaging

R. Adam, M. Arnaud, I. Bartalucci +42

We propose a method to map the temperature distribution of the hot gas in galaxy clusters that uses resolved images of the thermal Sunyaev-Zel'dovich (tSZ) effect in combination wi…

astro-ph.CO2017★ 75 cited

Relativistic N-body simulations with massive neutrinos

Julian Adamek, Ruth Durrer, Martin Kunz

Some of the dark matter in the Universe is made up of massive neutrinos. Their impact on the formation of large scale structure can be used to determine their absolute mass scale f…

astro-ph.CO2017★ 17 cited

Measuring Polarized Emission in Clusters in the CMB S4 Era

Thibaut Louis, Emory F. Bunn, Benjamin Wandelt +1

The next generation of CMB experiments (CMB Stage-4) will produce a Sunyaev-Zel'dovich (SZ) cluster catalog containing objects, two orders of magnitudes more than curr…

astro-ph.CO2017★ 14 cited

Bandpass mismatch error for satellite CMB experiments I: Estimating the spurious signal

Duc Thuong Hoang, Guillaume Patanchon, Martin Bucher +5

Future Cosmic Microwave Background (CMB) satellite missions aim to use the mode polarization to measure the tensor-to-scalar ratio with a sensitivity of about . Ac…

astro-ph.CO2017★ 48 cited

A 3-D model of polarised dust emission in the Milky Way

Ginés Martínez-Solaeche, Ata Karakci, Jacques Delabrouille

We present a three-dimensional model of polarised galactic dust emission that takes into account the variation of the dust density, spectral index and temperature along the line of…

astro-ph.CO2017★ 35 cited

Geometrical destabilization, premature end of inflation and Bayesian model selection

Sébastien Renaux-Petel, Krzysztof Turzyński, Vincent Vennin

By means of Bayesian techniques, we study how a premature ending of inflation, motivated by geometrical destabilization, affects the observational evidences of typical inflationary…

astro-ph.CO2017★ 1 cited

The RedGOLD Cluster Detection Algorithm and its Cluster Candidate Catalogue for the CFHT-LS W1

Rossella Licitra, Simona Mei, Anand Raichoor +2

RedGOLD searches for red-sequence galaxy overdensities while minimizing contamination from dusty star-forming galaxies. It imposes an NFW profile and calculates cluster detection s…