activity
20102026
most citedA change in the optical polarization associated with a gamma-ray flare in the blazar 3C 279

334 citations · 949 across the 31 of their papers we have counts for

collaborators

32 papers

astro-ph.IM2026

LiteBIRD Mission Overview after Mission Reformation

LiteBIRD Collaboration, K. Aizawa, H. Akamatsu +172

LiteBIRD is a JAXA-led space mission designed to produce all-sky microwave polarization maps. Its primary science goal is to test representative inflationary models by measuring th…

astro-ph.GA2026

Galactic Science with the LiteBIRD satellite: Spectral characterization of diffuse Galactic polarized emission at the angular power spectrum level

S. Vinzl, J. Aumont, L. Vacher +108

Detection of primordial -mode polarization in the cosmic microwave background (CMB) from tensor perturbations generated during inflation is a major scientific goal of future CMB…

astro-ph.HE2025

Feasibility of ultra-high-energy cosmic ray backtracking through sparse local measurements of the Galactic magnetic field

S. Romanopoulos, M. Mastorakis, V. Pavlidou

Planned and ongoing campaigns for the acquisition of high-quality local measurements of the Galactic magnetic field (GMF) at interstellar cloud locations have generated intense int…

astro-ph.CO2025

LiteBIRD Science Goals and Forecasts: constraining isotropic cosmic birefringence

E. de la Hoz, P. Diego-Palazuelos, J. Errard +112

Cosmic birefringence (CB) is the rotation of the photons' linear polarisation plane during propagation. Such an effect is a tracer of parity-violating extensions of standard electr…

astro-ph.CO2024

Requirements on the gain calibration for LiteBIRD polarisation data with blind component separation

F. Carralot, A. Carones, N. Krachmalnicoff +106

Future cosmic microwave background (CMB) experiments are primarily targeting a detection of the primordial -mode polarisation. The faintness of this signal requires exquisite co…

astro-ph.GA2024★ 2 cited

SMILE: Discriminating milli-lens systems in a VLBI pilot project

F. M. Pötzl, C. Casadio, G. Kalaitzidakis +11

Dark Matter (DM) remains poorly probed on critical, sub-galactic scales, where predictions from different models diverge in terms of abundance and density profiles of halos. Gravit…

astro-ph.CO2024

LiteBIRD Science Goals and Forecasts. Mapping the Hot Gas in the Universe

M. Remazeilles, M. Douspis, J. A. Rubiño-Martín +104

We assess the capabilities of the LiteBIRD mission to map the hot gas distribution in the Universe through the thermal Sunyaev-Zeldovich (SZ) effect. Our analysis relies on compreh…

astro-ph.IM2024

The LiteBIRD mission to explore cosmic inflation

T. Ghigna, A. Adler, K. Aizawa +156

LiteBIRD, the next-generation cosmic microwave background (CMB) experiment, aims for a launch in Japan's fiscal year 2032, marking a major advancement in the exploration of primord…

astro-ph.GA2024★ 23 cited

The first degree-scale starlight-polarization-based tomography map of the magnetized interstellar medium

V. Pelgrims, N. Mandarakas, R. Skalidis +21

We present the first degree-scale tomography map of the dusty magnetized interstellar medium (ISM) from stellar polarimetry and distance measurements. We used the RoboPol polarimet…

astro-ph.CO2023

Impact of beam far side-lobe knowledge in the presence of foregrounds for LiteBIRD

C. Leloup, G. Patanchon, J. Errard +108

We present a study of the impact of an uncertainty in the beam far side-lobe knowledge on the measurement of the Cosmic Microwave Background -mode signal at large scale. It is e…

astro-ph.CO2023★ 21 cited

LiteBIRD Science Goals and Forecasts: Improving Sensitivity to Inflationary Gravitational Waves with Multitracer Delensing

T. Namikawa, A. I. Lonappan, C. Baccigalupi +119

We estimate the efficiency of mitigating the lensing -mode polarization, the so-called delensing, for the experiment with multiple external data sets of lensing-mass…

astro-ph.CO2023★ 12 cited

LiteBIRD Science Goals and Forecasts: A full-sky measurement of gravitational lensing of the CMB

A. I. Lonappan, T. Namikawa, G. Piccirilli +119

We explore the capability of measuring lensing signals in full-sky polarization maps. With a arcmin beam width and an impressively low polarization noise of $2.16\,…

astro-ph.SR2023

Zero-polarization candidate regions for calibration of wide-field optical polarimeters

N. Mandarakas, G. V. Panopoulou, V. Pelgrims +14

Context. Calibration of optical polarimeters relies on the use of stars with negligible polarization (unpolarized standard stars) for determining the instrumental polarization zero…

astro-ph.CO2023★ 24 cited

LiteBIRD Science Goals and Forecasts. A Case Study of the Origin of Primordial Gravitational Waves using Large-Scale CMB Polarization

P. Campeti, E. Komatsu, C. Baccigalupi +107

We study the possibility of using the satellite -mode survey to constrain models of inflation producing specific features in CMB angular power spectra. We explore a p…

astro-ph.IM2023★ 4 cited

Bright-Moon Sky as a Wide-Field Linear Polarimetric Flat Source for Calibration

S. Maharana, S. Kiehlmann, D. Blinov +20

Next-generation wide-field optical polarimeters like the Wide-Area Linear Optical Polarimeters (WALOPs) have a field of view (FoV) of tens of arcminutes. For efficient and accurate…

physics.flu-dyn2022★ 4 cited

Analytic characterization of sub-Alfvénic turbulence energetics

R. Skalidis, K. Tassis, V. Pavlidou

Magnetohydrodynamic (MHD) turbulence is a cross-field process relevant to many systems. A prerequisite for understanding these systems is to constrain the role of MHD turbulence, a…

astro-ph.HE2022★ 7 cited

GRB 210619B optical afterglow polarization

N. Mandarakas, D. Blinov, D. R. Aguilera-Dena +7

We report on the follow-up of the extremely bright long gamma-ray burst GRB~210619B with optical polarimetry. We conducted optopolarimetric observations of the optical afterglow of…

astro-ph.GA2022★ 25 cited

Starlight-polarization-based tomography of the magnetized interstellar medium: PASIPHAE's line-of-sight inversion method

V. Pelgrims, G. V. Panopoulou, K. Tassis +20

We present the first Bayesian method for tomographic decomposition of the plane-of-sky orientation of the magnetic field with the use of stellar polarimetry and distance. This stan…

astro-ph.GA2021★ 2 cited

Why take the square root? An assessment of interstellar magnetic field strength estimation methods

R. Skalidis, J. Sternberg, J. R. Beattie +2

The magnetic field strength in interstellar clouds can be estimated indirectly by using the spread of dust polarization angles (). The method developed by Davis 1951 and by Cha…

astro-ph.CO2021★ 10 cited

Local alignments of parsec-scale AGN radiojets

N. Mandarakas, D. Blinov, C. Casadio +4

Context.Coherence in the characteristics of neighboring sources in 2D and 3D space may suggest the existence of large-scale cosmic structures, which are useful for cosmological stu…

astro-ph.GA2018★ 27 cited

Local measurements of the mean interstellar polarization at high Galactic latitudes

R. Skalidis, G. V. Panopoulou, K. Tassis +4

We conduct a small-scale pathfinding survey designed to identify the average polarization properties of the diffuse ISM locally at the lowest dust content regions. We perform deep…

astro-ph.HE2018★ 8 cited

Deflections of ultra-high energy cosmic rays by the Milky Way magnetic field: how well can they be corrected?

G. Magkos, V. Pavlidou

Locating the sources of ultra-high energy cosmic rays (UHECRs) still remains a difficult puzzle for modern astrophysics. A major hurdle in the search for the sources is the fact th…

astro-ph.HE2017★ 2 cited

The dependence of optical polarisation of blazars on the synchrotron component peak frequency

Emmanouil Angelakis, Dmitry Blinov, Markus Böttcher +5

The RoboPol instrument and the relevant program was developed in order to conduct a systematic study of the optical polarisation variability of blazars. Driven by the discovery tha…

astro-ph.HE2016

Robopol: Optical polarisation monitoring of blazars

Emmanouil Angelakis, Dmitry Blinov, Markus Böttcher +5

The RoboPol program has been monitoring the -band linear polarisation parameters of an unbiased sample of 60 gamma-ray-loud blazars and a "control" sample of 15 gamma-ray-quite…