Ultrafast Outflows From Black Hole Mergers With a Minidisk

Murase, Kohta; Kashiyama, Kazumi; Mészáros, P.; Shoemaker, Ian M.; Senno, Nicholas

doi:10.3847/2041-8205/822/1/l9

Cited by 99 publications

(110 citation statements)

References 37 publications

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“…This has provided substantial support for cosmological scenarios (the DM-based redshift estimate for FRB 110523 is z ≈ 0.5), especially models with relatively young progenitors that would be associated with nuclear or star-forming regions or a surrounding supernova remnant (Masui et al 2015;Murase et al 2016).…”

Section: Introductionmentioning

confidence: 90%

Discovery of a Transient Gamma-Ray Counterpart to FRB 131104

DeLaunay

Fox

Murase

et al. 2016

ApJL

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We report our discovery in Swift satellite data of a transient gamma-ray counterpart (3.2σ confidence) to the fast radio burst FRB 131104, the first such counterpart to any FRB. The transient has duration T 90 ∼ > 100 s and fluence S γ ≈ 4 × 10 −6 erg cm −2 , increasing the energy budget for this event by more than a billion times; at the nominal z ≈ 0.55 redshift implied by its dispersion measure, the burst's gamma-ray energy output is E γ ≈ 5 × 10 51 erg. The observed radio to gamma-ray fluence ratio for FRB 131104 is consistent with a lower limit we derive from Swift observations of another FRB, which is not detected in gamma-rays, and with an upper limit previously derived for the brightest gamma-ray flare from SGR 1806−20, which was not detected in the radio. X-ray, ultraviolet, and optical observations beginning two days after the FRB do not reveal any associated afterglow, supernova, or transient; Swift observations exclude association with the brightest 65% of Swift gamma-ray burst X-ray afterglows, while leaving the possibility of an associated supernova at much more than 10% the FRB's nominal distance, D ∼ > 320 Mpc, largely unconstrained. Transient high-luminosity gamma-ray emission arises most naturally in a relativistic outflow or shock breakout, as for example from magnetar flares, gamma-ray bursts, relativistic supernovae, and some types of galactic nuclear activity. Our discovery thus bolsters the case for an extragalactic origin for some FRBs and suggests that future rapid-response observations might identify long-lived counterparts, resolving the nature of these mysterious phenomena and realizing their promise as probes of cosmology and fundamental physics.

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Section: Introductionmentioning

confidence: 90%

Discovery of a Transient Gamma-Ray Counterpart to FRB 131104

DeLaunay

Fox

Murase

et al. 2016

ApJL

Self Cite

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“…This has not prevented a series of authors from devising a list of possible scenarios to explain the origin of the signal. These range from the dissipation of the Poynting flux energy through the merger of two charged black holes (Fraschetti 2018;Liebling & Palenzuela 2016;Zhang 2016); super-Eddington accretion through a BBH merger within an AGN disk (Bartos et al 2017;Stone et al 2017), or a BBH system with a long-lived disk of ambient material (Murase et al 2016;Perna et al 2016). Other theories include the triggered collapse of a massive star due to its black hole companion (Janiuk et al 2017), and the fragmentation of the stellar core of a massive star (Loeb 2016; although see Dai et al 2017 andFedrow et al 2017).…”

Section: Discussionmentioning

confidence: 99%

Analysis of Sub-threshold Short Gamma-Ray Bursts in Fermi GBM Data

Kocevski

Burns

Goldstein

et al. 2018

ApJ

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The Fermi Gamma-ray Burst Monitor (GBM) is currently the most prolific detector of gamma-ray bursts (GRBs). Recently the detection rate of short GRBs (SGRBs) has been dramatically increased through the use of groundbased searches that analyze GBM continuous time-tagged event (CTTE) data. Here, we examine the efficiency of a method developed to search CTTE data for sub-threshold transient events in temporal coincidence with LIGO/ Virgo compact binary coalescence triggers. This targeted search operates by coherently combining data from all 14 GBM detectors by taking into account the complex spatial and energy dependent response of each detector. We use the method to examine a sample of SGRBs that were independently detected by the Burst Alert Telescope on board the Neil Gehrels Swift Observatory, but which were too intrinsically weak or viewed with unfavorable instrument geometry to initiate an onboard trigger of GBM. We find that the search can successfully recover a majority of the BAT detected sample in the CTTE data. We show that the targeted search of CTTE data will be crucial in increasing the GBM sensitivity, and hence the gamma-ray horizon, to weak events such as GRB 170817A. We also examine the properties of the GBM signal possibly associated with the LIGO detection of GW150914 and show that it is consistent with the observed properties of other sub-threshold SGRBs in our sample. We find that the targeted search is capable of recovering true astrophysical signals as weak as the signal associated with GW150914 in the untriggered data.

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“…Although it is not standard to associate electromagnetic (EM) counterparts to BHB mergers, several (sometimes exotic) EM production scenarios have been proposed (see e.g. [26,27,28]), triggered by a tentative association of a gamma-ray signal detected by Fermi to GW150914 [29]. The claim is controversial, and the signal has not been confirmed, among others, by simultaneous INTEGRAL observations [30].…”

Section: Multi-band and Multimessenger Astronomymentioning

confidence: 99%

Multi-band gravitational wave astronomy: science with joint space- and ground-based observations of black hole binaries

Sesana¹

2017

J. Phys.: Conf. Ser.

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Soon after the observation of the first black hole binary (BHB) by advanced LIGO (aLIGO), GW150914, it was realised that such a massive system would have been observable in the milli-Hz (mHz) band few years prior to coalescence. Operating in the frequency range 0.1-100 mHz, the Laser Interferometer Space Antenna (LISA) can potentially detect up to thousands inspiralling BHBs, based on the coalescence rates inferred from the aLIGO first observing run (O1). The vast majority of them (those emitting at f < 10 mHz) will experience only a minor frequency drift during LISA lifetime, resulting in signals similar to those emitted by galactic white dwarf binaries. At f > 10 mHz however, several of them will sweep through the LISA band, eventually producing loud coalescences in the audio-band probed by aLIGO. This contribution reviews the scientific potential of these new class of LISA sources which, in the past few months, has been investigated in several contexts, including multi-messenger and multi-band gravitational wave astronomy, BHB astrophysics, tests of alternative theories of gravity and cosmography.

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Ultrafast Outflows From Black Hole Mergers With a Minidisk

Cited by 99 publications

References 37 publications

Discovery of a Transient Gamma-Ray Counterpart to FRB 131104

Discovery of a Transient Gamma-Ray Counterpart to FRB 131104

Analysis of Sub-threshold Short Gamma-Ray Bursts in Fermi GBM Data

Multi-band gravitational wave astronomy: science with joint space- and ground-based observations of black hole binaries

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