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Article ; Online: Gravitational-wave asteroseismology with fundamental modes from compact binary inspirals.

Pratten, Geraint / Schmidt, Patricia / Hinderer, Tanja

2020 Volume 11, Issue 1, Page(s) 2553

Abstract: Gravitational waves (GWs) from binary neutron stars encode unique information about ultra-dense matter through characterisic signatures associated with a variety of phenomena including tidal effects during the inspiral. The main tidal signature depends ... ...

Abstract	Gravitational waves (GWs) from binary neutron stars encode unique information about ultra-dense matter through characterisic signatures associated with a variety of phenomena including tidal effects during the inspiral. The main tidal signature depends predominantly on the equation of state (EoS)-related tidal deformability parameter Λ, but at late times is also characterised by the frequency of the star's fundamental oscillation mode (f-mode). In General Relativity and for nuclear matter, Λ and the f-modes are related by universal relations which may not hold for alternative theories of gravity or exotic matter. Independently measuring Λ and the f-mode frequency enables tests of gravity and the nature of compact binaries. Here we present directly measured constraints on the f-mode frequencies of the companions of GW170817. We also show that future GW detector networks will measure f-mode frequencies to within tens of Hz, enabling precision GW asteroseismology with binary inspiral signals alone.
Language	English
Publishing date	2020-05-21
Publishing country	England
Document type	Journal Article
ZDB-ID	2553671-0
ISSN	2041-1723 ; 2041-1723
ISSN (online)	2041-1723
ISSN	2041-1723
DOI	10.1038/s41467-020-15984-5
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Book ; Thesis: Ein Beitrag zur strukturdynamischen Kurbelwellenoptimierung an einem V-10 Motor

Hinderer, Thomas

(Fortschrittsberichte Strukturanalyse und Tribologie ; 25)

2008

Author's details	vorgelegt von: Thomas Hinderer
Series title	Fortschrittsberichte Strukturanalyse und Tribologie ; 25
Language	German
Size	203 S., Ill., graph. Darst., 21 cm
Publisher	Inst. für Maschinenelemente und Konstruktionstechnik
Publishing place	Kassel
Document type	Book ; Thesis
Thesis / German Habilitation thesis	Univ., Diss.--Kassel, 2007
ISBN	9783939124061 ; 3939124060
Database	Library catalogue of the German National Library of Science and Technology (TIB), Hannover

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Article ; Online: Transient resonances in the inspirals of point particles into black holes.

Flanagan, Eanna E / Hinderer, Tanja

Physical review letters

2012 Volume 109, Issue 7, Page(s) 71102

Abstract: We show that transient resonances occur in the two-body problem in general relativity for spinning black holes in close proximity to one another when one black hole is much more massive than the other. These resonances occur when the ratio of polar and ... ...

Abstract	We show that transient resonances occur in the two-body problem in general relativity for spinning black holes in close proximity to one another when one black hole is much more massive than the other. These resonances occur when the ratio of polar and radial orbital frequencies, which is slowly evolving under the influence of gravitational radiation reaction, passes through a low order rational number. At such points, the adiabatic approximation to the orbital evolution breaks down, and there is a brief but order unity correction to the inspiral rate. The resonances cause a perturbation to orbital phase of order a few tens of cycles for mass ratios ∼10(-6), make orbits more sensitive to changes in initial data (though not quite chaotic), and are genuine nonperturbative effects that are not seen at any order in a standard post-Newtonian expansion. Our results apply to an important potential source of gravitational waves, the gradual inspiral of white dwarfs, neutron stars, or black holes into much more massive black holes. Resonances' effects will increase the computational challenge of accurately modeling these sources.
Language	English
Publishing date	2012-08-17
Publishing country	United States
Document type	Journal Article
ZDB-ID	208853-8
ISSN	1079-7114 ; 0031-9007
ISSN (online)	1079-7114
ISSN	0031-9007
DOI	10.1103/PhysRevLett.109.071102
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Article ; Online: Orbital resonances around black holes.

Brink, Jeandrew / Geyer, Marisa / Hinderer, Tanja

Physical review letters

2015 Volume 114, Issue 8, Page(s) 81102

Abstract: We compute the length and time scales associated with resonant orbits around Kerr black holes for all orbital and spin parameters. Resonance-induced effects are potentially observable when the Event Horizon Telescope resolves the inner structure of Sgr A* ...

Abstract	We compute the length and time scales associated with resonant orbits around Kerr black holes for all orbital and spin parameters. Resonance-induced effects are potentially observable when the Event Horizon Telescope resolves the inner structure of Sgr A*, when space-based gravitational wave detectors record phase shifts in the waveform during the resonant passage of a compact object spiraling into the black hole, or in the frequencies of quasiperiodic oscillations for accreting black holes. The onset of geodesic chaos for non-Kerr spacetimes should occur at the resonance locations quantified here.
Language	English
Publishing date	2015-02-27
Publishing country	United States
Document type	Journal Article
ZDB-ID	208853-8
ISSN	1079-7114 ; 0031-9007
ISSN (online)	1079-7114
ISSN	0031-9007
DOI	10.1103/PhysRevLett.114.081102
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Book ; Online: Lightning-Fast Gravitational Wave Parameter Inference through Neural Amortization

Delaunoy, Arnaud / Wehenkel, Antoine / Hinderer, Tanja / Nissanke, Samaya / Weniger, Christoph / Williamson, Andrew R. / Louppe, Gilles

2020

Abstract: Gravitational waves from compact binaries measured by the LIGO and Virgo detectors are routinely analyzed using Markov Chain Monte Carlo sampling algorithms. Because the evaluation of the likelihood function requires evaluating millions of waveform ... ...

Abstract	Gravitational waves from compact binaries measured by the LIGO and Virgo detectors are routinely analyzed using Markov Chain Monte Carlo sampling algorithms. Because the evaluation of the likelihood function requires evaluating millions of waveform models that link between signal shapes and the source parameters, running Markov chains until convergence is typically expensive and requires days of computation. In this extended abstract, we provide a proof of concept that demonstrates how the latest advances in neural simulation-based inference can speed up the inference time by up to three orders of magnitude -- from days to minutes -- without impairing the performance. Our approach is based on a convolutional neural network modeling the likelihood-to-evidence ratio and entirely amortizes the computation of the posterior. We find that our model correctly estimates credible intervals for the parameters of simulated gravitational waves. Comment: V1: First version; V2: Updated references; V3: Update references and camera-ready version; V4: Correct figure labels
Keywords	Astrophysics - Instrumentation and Methods for Astrophysics ; Computer Science - Machine Learning ; General Relativity and Quantum Cosmology
Subject code	310
Publishing date	2020-10-24
Publishing country	us
Document type	Book ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Resonant shattering of neutron star crusts.

Tsang, David / Read, Jocelyn S / Hinderer, Tanja / Piro, Anthony L / Bondarescu, Ruxandra

Physical review letters

2012 Volume 108, Issue 1, Page(s) 11102

Abstract: The resonant excitation of neutron star (NS) modes by tides is investigated as a source of short gamma-ray burst (SGRB) precursors. We find that the driving of a crust-core interface mode can lead to shattering of the NS crust, liberating ∼10{46}-10{47} ...

Abstract	The resonant excitation of neutron star (NS) modes by tides is investigated as a source of short gamma-ray burst (SGRB) precursors. We find that the driving of a crust-core interface mode can lead to shattering of the NS crust, liberating ∼10{46}-10{47} erg of energy seconds before the merger of a NS-NS or NS-black-hole binary. Such properties are consistent with Swift/BAT detections of SGRB precursors, and we use the timing of the observed precursors to place weak constraints on the crust equation of state. We describe how a larger sample of precursor detections could be used alongside coincident gravitational wave detections of the inspiral by Advanced LIGO class detectors to probe the NS structure. These two types of observations nicely complement one another, since the former constrains the equation of state and structure near the crust-core boundary, while the latter is more sensitive to the core equation of state.
Language	English
Publishing date	2012-01-06
Publishing country	United States
Document type	Journal Article
ZDB-ID	208853-8
ISSN	1079-7114 ; 0031-9007
ISSN (online)	1079-7114
ISSN	0031-9007
DOI	10.1103/PhysRevLett.108.011102
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Article: Accumulation of polycyclic aromatic hydrocarbons in rural soils based on mass balances at the catchment scale.

Gocht, Tilman / Ligouis, Bertrand / Hinderer, T Matthias / Grathwohl, Peter

Environmental toxicology and chemistry

2007 Volume 26, Issue 4, Page(s) 591–600

Abstract: Polycyclic aromatic hydrocarbons (PAHs) are hydrophobic organic pollutants that are ubiquitously distributed in the environment at relatively high concentrations. In our study we investigated the long-term fate of atmospheric PAHs in soils of rural areas, ...

Abstract	Polycyclic aromatic hydrocarbons (PAHs) are hydrophobic organic pollutants that are ubiquitously distributed in the environment at relatively high concentrations. In our study we investigated the long-term fate of atmospheric PAHs in soils of rural areas, resulting from diffuse pollution based on mass balances at the catchment scale. By determining PAHs in several environmental compartments, estimates of soil storages and water fluxes were made and compared with atmospheric deposition. The results indicate that more than 90% of the incoming PAHs remain in the catchments and accumulate in the topsoils. Furthermore, revolatilization of PAHs from soils and degradation in the soils is very limited, resulting in ongoing accumulation in topsoils, in particular for low-volatile PAHs. Combustion-derived carbonaceous particles were detected in atmospheric deposition as well as in the soil samples. Since these particles are very strong adsorbents, they are suspected to play a key role in the environmental fate of the diffuse distributed PAHs.
MeSH term(s)	Atmosphere/analysis ; Environmental Monitoring/statistics & numerical data ; Environmental Pollutants/analysis ; Fresh Water/analysis ; Gas Chromatography-Mass Spectrometry ; Germany ; Models, Theoretical ; Polycyclic Aromatic Hydrocarbons/analysis ; Soil/analysis
Chemical Substances	Environmental Pollutants ; Polycyclic Aromatic Hydrocarbons ; Soil
Language	English
Publishing date	2007-02-13
Publishing country	United States
Document type	Comparative Study ; Journal Article ; Research Support, Non-U.S. Gov't
ZDB-ID	46234-2
ISSN	1552-8618 ; 0730-7268
ISSN (online)	1552-8618
ISSN	0730-7268
DOI	10.1897/06-287r.1
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Article ; Online: Effects of Neutron-Star Dynamic Tides on Gravitational Waveforms within the Effective-One-Body Approach.

Hinderer, Tanja / Taracchini, Andrea / Foucart, Francois / Buonanno, Alessandra / Steinhoff, Jan / Duez, Matthew / Kidder, Lawrence E / Pfeiffer, Harald P / Scheel, Mark A / Szilagyi, Bela / Hotokezaka, Kenta / Kyutoku, Koutarou / Shibata, Masaru / Carpenter, Cory W

Physical review letters

2016 Volume 116, Issue 18, Page(s) 181101

Abstract: Extracting the unique information on ultradense nuclear matter from the gravitational waves emitted by merging neutron-star binaries requires robust theoretical models of the signal. We develop a novel effective-one-body waveform model that includes, for ...

Abstract	Extracting the unique information on ultradense nuclear matter from the gravitational waves emitted by merging neutron-star binaries requires robust theoretical models of the signal. We develop a novel effective-one-body waveform model that includes, for the first time, dynamic (instead of only adiabatic) tides of the neutron star as well as the merger signal for neutron-star-black-hole binaries. We demonstrate the importance of the dynamic tides by comparing our model against new numerical-relativity simulations of nonspinning neutron-star-black-hole binaries spanning more than 24 gravitational-wave cycles, and to other existing numerical simulations for double neutron-star systems. Furthermore, we derive an effective description that makes explicit the dependence of matter effects on two key parameters: tidal deformability and fundamental oscillation frequency.
Language	English
Publishing date	2016-05-06
Publishing country	United States
Document type	Journal Article
ZDB-ID	208853-8
ISSN	1079-7114 ; 0031-9007
ISSN (online)	1079-7114
ISSN	0031-9007
DOI	10.1103/PhysRevLett.116.181101
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Article: Cross section, final spin, and zoom-whirl behavior in high-energy black-hole collisions.

Sperhake, Ulrich / Cardoso, Vitor / Pretorius, Frans / Berti, Emanuele / Hinderer, Tanja / Yunes, Nicolas

Physical review letters

2009 Volume 103, Issue 13, Page(s) 131102

Abstract: We study the collision of two highly boosted equal-mass, nonrotating black holes with generic impact parameter. We find such systems to exhibit zoom-whirl behavior when fine-tuning the impact parameter. Near the threshold of immediate merger the remnant ... ...

Abstract	We study the collision of two highly boosted equal-mass, nonrotating black holes with generic impact parameter. We find such systems to exhibit zoom-whirl behavior when fine-tuning the impact parameter. Near the threshold of immediate merger the remnant black-hole Kerr parameter can be near maximal (a/M greater, similar 0.95) and the radiated energy can be as large as 35 +/- 5% of the center-of-mass energy.
Language	English
Publishing date	2009-09-25
Publishing country	United States
Document type	Journal Article
ZDB-ID	208853-8
ISSN	1079-7114 ; 0031-9007
ISSN (online)	1079-7114
ISSN	0031-9007
DOI	10.1103/PhysRevLett.103.131102
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Article ; Online: Illuminating gravitational waves: A concordant picture of photons from a neutron star merger.

Kasliwal, M M / Nakar, E / Singer, L P / Kaplan, D L / Cook, D O / Van Sistine, A / Lau, R M / Fremling, C / Gottlieb, O / Jencson, J E / Adams, S M / Feindt, U / Hotokezaka, K / Ghosh, S / Perley, D A / Yu, P-C / Piran, T / Allison, J R / Anupama, G C /

Balasubramanian, A / Bannister, K W / Bally, J / Barnes, J / Barway, S / Bellm, E / Bhalerao, V / Bhattacharya, D / Blagorodnova, N / Bloom, J S / Brady, P R / Cannella, C / Chatterjee, D / Cenko, S B / Cobb, B E / Copperwheat, C / Corsi, A / De, K / Dobie, D / Emery, S W K / Evans, P A / Fox, O D / Frail, D A / Frohmaier, C / Goobar, A / Hallinan, G / Harrison, F / Helou, G / Hinderer, T / Ho, A Y Q / Horesh, A / Ip, W-H / Itoh, R / Kasen, D / Kim, H / Kuin, N P M / Kupfer, T / Lynch, C / Madsen, K / Mazzali, P A / Miller, A A / Mooley, K / Murphy, T / Ngeow, C-C / Nichols, D / Nissanke, S / Nugent, P / Ofek, E O / Qi, H / Quimby, R M / Rosswog, S / Rusu, F / Sadler, E M / Schmidt, P / Sollerman, J / Steele, I / Williamson, A R / Xu, Y / Yan, L / Yatsu, Y / Zhang, C / Zhao, W

Science (New York, N.Y.)

2017

Abstract: Merging neutron stars offer an exquisite laboratory for simultaneously studying strong-field gravity and matter in extreme environments. We establish the physical association of an electromagnetic counterpart (EM170817) to gravitational waves (GW170817) ... ...

Abstract	Merging neutron stars offer an exquisite laboratory for simultaneously studying strong-field gravity and matter in extreme environments. We establish the physical association of an electromagnetic counterpart (EM170817) to gravitational waves (GW170817) detected from merging neutron stars. By synthesizing a panchromatic dataset, we demonstrate that merging neutron stars are a long-sought production site forging heavy elements by r-process nucleosynthesis. The weak gamma-rays seen in EM170817 are dissimilar to classical short gamma-ray bursts with ultra-relativistic jets. Instead, we suggest that breakout of a wide-angle, mildly-relativistic cocoon engulfing the jet elegantly explains the low-luminosity gamma-rays, the high-luminosity ultraviolet-optical-infrared and the delayed radio/x-ray emission. We posit that all merging neutron stars may lead to a wide-angle cocoon breakout; sometimes accompanied by a successful jet and sometimes a choked jet.
Language	English
Publishing date	2017-10-16
Publishing country	United States
Document type	Journal Article
ZDB-ID	128410-1
ISSN	1095-9203 ; 0036-8075
ISSN (online)	1095-9203
ISSN	0036-8075
DOI	10.1126/science.aap9455
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Zs.A 27: Show issues			Location: Je nach Verfügbarkeit (siehe Angabe bei Bestand) bis Jg. 1994: Bestellungen von Artikeln über das Online-Bestellformular Jg. 1995 - 2021: Lesesall (1.OG) ab Jg. 2022: Lesesaal (EG)
Zs.MG 77: Show issues

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