Concept
Millisecond pulsar
Related publications (12)
Gravitational wave signal from primordial magnetic fields in the Pulsar Timing Array frequency band
The NANOGrav, Parkes, European, and International Pulsar Timing Array (PTA) Collaborations have reported evidence for a common-spectrum process that can potentially correspond to a stochastic gravitational wave background (SGWB) in the 1-100 nHz frequency ...
AMER PHYSICAL SOC2022The Pristine survey - XVII. The C-19 stream is dynamically hot and more extended than previously thought
Pascale Jablonka, Carmela Lardo
The C-19 stream is the most metal-poor stellar system ever discovered, with a mean metallicity [Fe/H] = -3.38 +/- 0.06. Its low metallicity dispersion (sigma([Fe/H]) < 0.18 at the 95 per cent confidence level) and variations in sodium abundances strongly s ...
OXFORD UNIV PRESS2022High accuracy measurement of the prompt neutron decay constant in CROCUS using Gamma Noise and bootstrapped uncertainties
Andreas Pautz, Vincent Pierre Lamirand, Oskari Ville Pakari, Pavel Frajtag, Tom Mager
We experimentally demonstrate the advantages of gamma detection for noise measurements to deter-mine the prompt neutron decay constant a of a nuclear reactor using the power spectral density (PSD) method, coupled to a new uncertainty estimation scheme base ...
PERGAMON-ELSEVIER SCIENCE LTD2022Secular effects of ultralight dark matter on binary pulsars
Sergey Sibiryakov, Diego Blas Temino
Dark matter (DM) can consist of very light bosons behaving as a classical scalar field that experiences coherent oscillations. The presence of this DM field would perturb the dynamics of celestial bodies, either because the (oscillating) DM stress tensor m ...
AMER PHYSICAL SOC2020From NANOGrav to LIGO with metastable cosmic strings
We interpret the recent NANOGrav results in terms of a stochastic gravitational wave background from metastable cosmic strings. The observed amplitude of a stochastic signal can be translated into a range for the cosmic string tension and the mass of magne ...
2020How stellar rotation shapes the colour-magnitude diagram of the massive intermediate-age star cluster NGC 1846
We present a detailed study of stellar rotation in the massive 1.5 Gyr old cluster NGC 1846 in the Large Magellanic Cloud. Similar to other clusters at this age, NGC 1846 shows an extended main-sequence turn-off (eMSTO), and previous photometric studies ha ...
OXFORD UNIV PRESS2020Probing non-Gaussian stochastic gravitational wave backgrounds with LISA
Daniel Garcia Figueroa, Valerie Fiona Domcke
The stochastic gravitational wave background (SGWB) contains a wealth of information on astrophysical and cosmological processes. A major challenge of upcoming years will be to extract the information contained in this background and to disentangle the con ...
IOP PUBLISHING LTD2018Ultralight Dark Matter Resonates with Binary Pulsars
Sergey Sibiryakov, Diego Blas Temino
We consider the scenario where dark matter (DM) is represented by an ultralight classical scalar field performing coherent periodic oscillations. We point out that such DM perturbs the dynamics of binary systems either through its gravitational field or vi ...
American Physical Society2017Constraining the production of cosmic rays by pulsars
One of the possible sources of hadronic cosmic rays (CRs) are newborn pulsars. If this is indeed the case, they should feature diffusive gamma-ray halos produced by interactions of CRs with interstellar gas. In this paper we try to identify extended gamma- ...
Amer Physical Soc2016On constraining the speed of gravitational waves following GW150914
Sergey Sibiryakov, Diego Blas Temino, Mikhail Ivanov
We point out that the observed time delay between the detection of the signal at the Hanford and Livingston LIGO sites from the gravitational wave event GW150914 places an upper bound on the speed of propagation of gravitational waves, c (gw) ae(2) 1.7 in ...
Springer Verlag2016