0000000000403381

AUTHOR

J. Isern

showing 3 related works from this author

The Large Observatory for X-ray Timing (LOFT)

2012

High-time-resolution X-ray observations of compact objects provide direct access to strong-field gravity, to the equation of state of ultra-dense matter and to black hole masses and spins. A 10 m^2-class instrument in combination with good spectral resolution is required to exploit the relevant diagnostics and answer two of the fundamental questions of the European Space Agency (ESA) Cosmic Vision Theme "Matter under extreme conditions", namely: does matter orbiting close to the event horizon follow the predictions of general relativity? What is the equation of state of matter in neutron stars? The Large Observatory For X-ray Timing (LOFT), selected by ESA as one of the four Cosmic Vision M…

Event horizonX-ray timingMission7. Clean energy01 natural sciencesneutron starsT175 Industrial research. Research and developmentBINARIESSettore FIS/05 - Astronomia E AstrofisicaALICESILICON DRIFT DETECTORObservatoryEQUATIONneutron star010303 astronomy & astrophysicsHigh Energy Astrophysical Phenomena (astro-ph.HE)Physics[SDU.ASTR.HE]Sciences of the Universe [physics]/Astrophysics [astro-ph]/High Energy Astrophysical Phenomena [astro-ph.HE]Astrophysics::Instrumentation and Methods for AstrophysicsMissions X-ray timing compact objects black holes neutron starscompact objectsAstrophysics - Instrumentation and Methods for AstrophysicsAstrophysics - High Energy Astrophysical PhenomenaPROPORTIONAL COUNTER[PHYS.ASTR.HE]Physics [physics]/Astrophysics [astro-ph]/High Energy Astrophysical Phenomena [astro-ph.HE]Active galactic nucleusCosmic VisionX-ray astronomy; high time variabilityAstrophysics::High Energy Astrophysical Phenomenablack holes; compact objects; Missions; neutron stars; X-ray timing;FOS: Physical sciencesMissionsX-ray astronomy0103 physical sciencesOSCILLATIONSInstrumentation and Methods for Astrophysics (astro-ph.IM)Supermassive black holehigh time variability010308 nuclear & particles physicsAstronomyCONSTRAINTSAstronomy and Astrophysicsblack holesGalaxyBlack holeNeutron starSpace and Planetary ScienceQB460-466 AstrophysicsDISCOVERYBLACK-HOLESUPERAGILE
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Gravitational Waves from the Merging of White Dwarfs

2003

Binary white dwarfs emit gravitational waves with frequencies of up to a few mHz. As a consequence of the loss of angular momentum both components gradually approach and the gravitational waves emitted by the system increase both in amplitude and frequency (it is said that they chirp). In fact, the chirp of the galactic white dwarf binary population is expected to be the dominant source of noise at low frequencies. A fraction of these binaries, those separated by a distance smaller than roughly three solar radii, will eventually merge in a time shorter than a Hubble time. It is expected that during the merging they will emit gravitational waves transporting extremely valuable information ab…

Physicseducation.field_of_studyGravitational wavePopulationWhite dwarfAstronomyAstrophysics::Cosmology and Extragalactic AstrophysicsAstrophysicsGalactic haloSupernovaAstrophysics::Solar and Stellar AstrophysicsRoche lobeMassive compact halo objecteducationChandrasekhar limitAstrophysics::Galaxy Astrophysics
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IAXO - The International Axion Observatory

2013

The International Axion Observatory (IAXO) is a next generation axion helioscope aiming at a sensitivity to the axion-photon coupling of a few 10^{-12} GeV^{-1}, i.e. 1-1.5 orders of magnitude beyond sensitivities achieved by the currently most sensitive axion helioscope, the CERN Axion Solar Telescope (CAST). Crucial factors in improving the sensitivity for IAXO are the increase of the magnetic field volume together with the extensive use of x-ray focusing optics and low background detectors, innovations already successfully tested at CAST. Electron-coupled axions invoked to explain the white dwarf cooling, relic axions, and a large variety of more generic axion-like particles (ALPs) along…

High Energy Physics::TheoryHigh Energy Physics - Experiment (hep-ex)Physics - Instrumentation and DetectorsPhysics::Instrumentation and DetectorsHigh Energy Physics::PhenomenologyFOS: Physical sciencesInstrumentation and Detectors (physics.ins-det)Detectors and Experimental TechniquesHigh Energy Physics - Experiment
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