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X-RAY ASTRONOMY 2019

8–13 Sept 2019
Europe/Rome timezone
All inquiries about receipts for the payment of the conference fee and/or dinner should be addressed to: a.vriz@fondazionealmamater.it, d.bordignon@fondazionealmamater.it

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Session

MULTI-MESSENGER AND TRANSIENT ASTRONOMY

9 Sept 2019, 11:20

Presentation materials

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  1. 305. From neutron stars to supermassive black holes: the gravitational wave view of compact binaries.
    Prof. Alberto Sesana (Universita` di Milano Bicocca)
    09/09/2019, 11:20
    Review

    Recent gravitational wave (GW) detections with LIGO/Virgo opened a new window on the Universe, unveiling the most violent catastrophic events in the cosmos. GW astronomy is just in its infancy, 3G detectors will extend our capabilities to observe colliding black holes and neutron stars from the ground, and the Laser Interferometer Space Antenna (LISA) and Pulsar Timing Arrays (PTAs) will offer...

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  2. 299. Gamma-ray bursts in the multi-messenger era
    Eleonora Troja (University of Maryland)
    09/09/2019, 11:50
    Invited

    The discovery of the gravitational wave transient GW170817 and its electromagnetic counterparts ushered in a new era of multi-messenger. astrophysics, in which both gravitational waves and light provide complementary views of the same source. These observations gave astronomers the unprecedented opportunity to probe the merger of two neutron stars, solving decade-long mysteries about the...

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  3. 115. INTEGRAL follow-up of the gravitational wave events
    Carlo Ferrigno (University of Geneva)
    09/09/2019, 12:15
    Contributed

    We exploit observations of the INTErnational Gamma-Ray Astrophysics Laboratory (INTEGRAL) to search for gamma-ray and hard X-ray emission associated with the gravitational wave events discovered during scientific runs of Advanced LIGO and Advanced Virgo. The highly eccentric orbit of INTEGRAL ensures high duty cycle, long-term stable background, and unobstructed view of the nearly entire sky....

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  4. 46. Searching for sub-pc supermassive black hole binary candidates in the hard X-rays
    Roberto Serafinelli (Istituto Nazionale di Astrofisica (INAF))
    09/09/2019, 12:30
    Contributed

    Supermassive black hole binaries (SMBHB) are a natural outcome of the hierarchical mergers predicted by the $\Lambda$CDM cosmology, and promising sources of nanohertz continuous gravitational wave signals. However, their detection remains elusive. Since hard X-rays are produced in the innermost regions of active galactic nuclei, they are predicted to show the best signatures of SMBHB, namely a...

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  5. 156. Astrometry of Black Hole X-ray Binaries with Gaia DR2: Implications for their formation and evolution
    Dr Anjali Rao (University of Southampton)
    09/09/2019, 12:45
    Contributed

    Fundamental properties of black hole X-ray binaries (BHXBs) are important in massive stellar evolution and high energy astrophysics. But, their astrometric properties have been reported for a handful of objects, because their transient behavior, faint optical counterparts and large distances (> 1 kpc) have made comprehensive astrometric investigations of BHXBs very challenging. Gaia has...

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  6. 286. Multi-wavelength observations of tidal disruption flares
    Sjoert van Velzen (NYU)
    09/09/2019, 14:30
    Invited

    The tidal disruption of a star by a massive black hole is a rare event that results in a spectacular flare of electromagnetic radiation. Visible from radio to X-ray wavelengths, tidal disruption flares are a unique probe to study massive black holes and the nucleus of their host galaxies. The advent of optical transient surveys has accelerated this field; the increased detection rate has...

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  7. 141. Fast spectral evolution in a new tidal disruption event
    Mr Richard Saxton (XMM SOC, ESAC)
    09/09/2019, 14:55
    Contributed

    When a star is disrupted by a super-massive black hole (SMBH), the stellar debris returns to the black hole at a rate which exceeds the Eddington accretion rate in the majority of cases and can cause a large X-ray flare. The X-ray emission from the resultant thick disk, shares characteristics with that seen from highly-accreting, low black hole mass ($10^5$ to $10^7$ solar masses), AGN; namely...

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  8. 144. Transient sources in the XMM-Newton catalogue
    Prof. Natalie Webb (IRAP)
    09/09/2019, 15:10
    Contributed

    XMM-Newton's large field of view and excellent sensitivity have resulted in hundreds of thousands of serendipitous X-ray detections, all publicly available in the latest version of the catalogue, 3XMM-DR8. Amongst these detections, many variable sources have been identified, including gamma-ray bursts, cataclysmic variables, supernova, magnetars, X-ray binaries and tidal disruption events. I...

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  9. 111. Fast IR/X-ray observations from the MAXI new black-transients
    Federico Vincentelli (University of Southampton)
    09/09/2019, 15:25
    Contributed

    Simultaneous O-IR / X-ray high-time resolution observations are one of the most powerful tools to study jets in Low-mass X-ray binareis. In this talk I present the latest results regarding fast-IR variabilty of the new black-hole transients which went in outburt between 2017 and today (e.g. MAXI J1535-571, MAXI J1820+070 and MAXI 1348-630). All these sources have been oberved in IR (K band)...

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  10. 298. Gravitational Waves
    Prof. Alberto Sesana (Universita` di Milano Bicocca)
    Review
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