相关论文: A Pulsar Wind Nebula Embedded in the Kilonova AT20…

Swift and NuSTAR observations of GW170817: detection of a blue kilonova

With the first direct detection of merging black holes in 2015, the era of gravitational wave (GW) astrophysics began. A complete picture of compact object mergers, however, requires the detection of an electromagnetic (EM) counterpart. We…

高能天体物理现象 · 物理学 2017-10-17 P. A. Evans , S. B. Cenko , J. A. Kennea , S. W. K. Emery , N. P. M. Kuin , O. Korobkin , R. T. Wollaeger , C. L. Fryer , K. K. Madsen , F. A. Harrison , Y. Xu , E. Nakar , K. Hotokezaka , A. Lien , S. Campana , S. R. Oates , E. Troja , A. A. Breeveld , F. E. Marshall , S. D. Barthelmy , A. P. Beardmore , D. N. Burrows , G. Cusumano , A. D'Ai , P. D'Avanzo , V. D'Elia , M. de Pasquale , W. P. Even , C. J. Fontes , K. Forster , J. Garcia , P. Giommi , B. Grefenstette , C. Gronwall , D. H. Hartmann , M. Heida , A. L. Hungerford , M. M. Kasliwal , H. A. Krimm , A. J. Levan , D. Malesani , A. Melandri , H. Miyasaka , J. A. Nousek , P. T. O'Brien , J. P. Osborne , C. Pagani , K. L. Page , D. M. Palmer , M. Perri , S. Pike , J. L. Racusin , S. Rosswog , M. H. Siegel , T. Sakamoto , B. Sbarufatti , G. Tagliaferri , N. R. Tanvir , A. Tohuvavohu

The unpolarized macronova associated with the gravitational wave event GW170817

The merger of two dense stellar remnants including at least one neutron star (NS) is predicted to produce gravitational waves (GWs) and short duration gamma ray bursts (GRBs). In the process, neutron-rich material is ejected from the system…

高能天体物理现象 · 物理学 2017-10-17 S. Covino , K. Wiersema , Y. Z. Fan , K. Toma , A. B. Higgins , A. Melandri , P. D'Avanzo , C. G. Mundell , E. Palazzi , N. R. Tanvir , M. G. Bernardini , M. Branchesi , E. Brocato , S. Campana , S. di Serego Alighieri , D. Gotz , J. P. U. Fynbo , W. Gao , A. Gomboc , B. Gompertz , J. Greiner , J. Hjorth , Z. P. Jin , L. Kaper , S. Klose , S. Kobayashi , D. Kopac , C. Kouveliotou , A. J. Levan , J. Mao , D. Malesani , E. Pian , A. Rossi , R. Salvaterra , R. L. C. Starling , I. Steele , G. Tagliaferri , E. Troja , A. J. van der Horst , R. A. M. J. Wijers

Joint analysis of gravitational-wave and electromagnetic data of mergers: breaking an afterglow model degeneracy in GW170817 and in future events

On August 17, 2017, Advanced LIGO and Virgo observed GW170817, the first gravitational-wave (GW) signal from a binary neutron star merger. It was followed by a short-duration gamma-ray burst, GRB 170817A, and by a non-thermal afterglow…

高能天体物理现象 · 物理学 2023-06-14 Giulia Gianfagna , Luigi Piro , Francesco Pannarale , Hendrik Van Eerten , Fulvio Ricci , Geoffrey Ryan , Eleonora Troja

Multiband Emission from Pulsar Wind Nebulae: A Possible Injection Spectrum

A recent research shows that particles with a spectrum of a relativistic Maxwellian plus a high-energy tail can be accelerated by relativistic collisionless shocks. We investigate the possibility of the high-energy particles with this new…

高能天体物理现象 · 物理学 2015-05-18 J. Fang , L. Zhang

Pulsar-wind nebulae and magnetar outflows: observations at radio, X-ray, and gamma-ray wavelengths

We review observations of several classes of neutron-star-powered outflows: pulsar-wind nebulae (PWNe) inside shell supernova remnants (SNRs), PWNe interacting directly with interstellar medium (ISM), and magnetar-powered outflows. We…

高能天体物理现象 · 物理学 2017-05-26 Stephen P. Reynolds , George G. Pavlov , Oleg Kargaltsev , Noel Klinger , Matthieu Renaud , Sandro Mereghetti

What Powered the Optical Transient AT2017gfo Associated with GW170817?

The groundbreaking discovery of the optical transient AT2017gfo associated with GW170817 opens a unique opportunity to study the physics of double neutron star (NS) mergers. We argue that the standard interpretation of AT2017gfo as being…

高能天体物理现象 · 物理学 2018-07-18 Shao-Ze Li , Liang-Duan Liu , Yun-Wei Yu , Bing Zhang

Spectroscopic identification of r-process nucleosynthesis in a double neutron star merger

The merger of two neutron stars is predicted to give rise to three major detectable phenomena: a short burst of gamma-rays, a gravitational wave signal, and a transient optical/near-infrared source powered by the synthesis of large amounts…

高能天体物理现象 · 物理学 2017-10-19 E. Pian , P. D'Avanzo , S. Benetti , M. Branchesi , E. Brocato , S. Campana , E. Cappellaro , S. Covino , V. D'Elia , J. P. U. Fynbo , F. Getman , G. Ghirlanda , G. Ghisellini , A. Grado , G. Greco , J. Hjorth , C. Kouveliotou , A. Levan , L. Limatola , D. Malesani , P. A. Mazzali , A. Melandri , P. Moller , L. Nicastro , E. Palazzi , S. Piranomonte , A. Rossi , O. S. Salafia , J. Selsing , G. Stratta , M. Tanaka , N. R. Tanvir , L. Tomasella , D. Watson , S. Yang , L. Amati , L. A. Antonelli , S. Ascenzi , M. G. Bernardini , M. Boer , F. Bufano , A. Bulgarelli , M. Capaccioli , P. G. Casella , A. J. Castro-Tirado , E. Chassande-Mottin , R. Ciolfi , C. M. Copperwheat , M. Dadina , G. De Cesare , A. Di Paola , Y. Z. Fan , B. Gendre , G. Giuffrida , A. Giunta , L. K. Hunt , G. Israel , Z. -P. Jin , M. Kasliwal , S. Klose , M. Lisi , F. Longo , E. Maiorano , M. Mapelli , . Masetti , L. Nava , B. Patricelli , D. Perley , A. Pescalli , T. Piran , A. Possenti , L. Pulone , M. Razzano , R. Salvaterra , P. Schipani , M. Spera , A. Stamerra , L. Stella , G. Tagliaferri , V. Testa , E. Troja , M. Turatto , S. D. Vergani , D. Vergani

The Binary Neutron Star event LIGO/VIRGO GW170817 a hundred and sixty days after merger: synchrotron emission across the electromagnetic spectrum

We report deep Chandra, HST and VLA observations of the binary neutron star event GW170817 at $t<160$ d after merger. These observations show that GW170817 has been steadily brightening with time and might have now reached its peak, and…

高能天体物理现象 · 物理学 2018-04-11 Raffaella Margutti , K. D. Alexander , X. Xie , L. Sironi , B. D. Metzger , A. Kathirgamaraju , W. Fong , P. K. Blanchard , E. Berger , A. MacFadyen , D. Giannios , C. Guidorzi , A. Hajela , R. Chornock , P. S. Cowperthwaite , T. Eftekhari , M. Nicholl , V. A. Villar , P. K. G. Williams , J. Zrake

Matched-filter study and energy budget suggest no detectable gravitational-wave 'extended emission' from GW170817

Van Putten & Della Valle (2018) have reported a possible detection of gravitational-wave 'extended emission' from a neutron star remnant of GW170817. Starting from the time-frequency evolution and total emitted energy of their reported…

高能天体物理现象 · 物理学 2022-10-07 Miquel Oliver , David Keitel , Andrew L. Miller , Hector Estelles , Alicia M. Sintes

Gamma-rays from kilonova: a potential probe of r-process nucleosynthesis

The mergers of compact binaries with at least one neutron star component are the potential leading sites of the production and ejection of $r$-process elements. Discoveries of galactic binary pulsars, short gamma-ray bursts, and…

高能天体物理现象 · 物理学 2020-04-10 Oleg Korobkin , Aimee M. Hungerford , Christopher L. Fryer , Matthew R. Mumpower , G. Wendell Misch , Trevor M. Sprouse , Jonas Lippuner , Rebecca Surman , Aaron J. Couture , Peter F. Bloser , Farzane Shirazi , Wesley P. Even , W. Thomas Vestrand , Richard S. Miller

First Multimessenger Observations of a Neutron Star Merger

We describe the first observations of the same celestial object with gravitational waves and light. * GW170817 was the first detection of a neutron star merger with gravitational waves. * The detection of a spatially coincident weak burst…

高能天体物理现象 · 物理学 2021-12-01 Raffaella Margutti , Ryan Chornock

Measurement of Spectral Breaks in Pulsar Wind Nebulae with Millimeter-wave Interferometry

We have observed pulsar wind nebulae in the three supernova remnants G11.2-0.3, G16.7+0.1, and G29.7-0.3 at 89 GHz with the Berkeley-Illinois-Maryland Association Array, measuring total flux densities of two of them for comparison with…

天体物理学 · 物理学 2009-11-10 D. C. -J. Bock , B. M. Gaensler

Discovery of the neutron stars merger GW170817/GRB170817A and Binary Stellar Evolution

The Multimessenger discovery of the merger of two neutron stars on August 17, 2017, GW170817 / GRB170817A, accompanied by a gamma-ray burst and an optical kilonova, is a triumph of the ideas about the evolution of the baryon component in…

高能天体物理现象 · 物理学 2018-05-15 Vladimir Lipunov , Victor Kornilov , Evgeny Gorbovskoy , Galina Lipunova , Daniil Vlasenko , I. Panchenko , N. V. Tyurina , V. Grinshpun

The Emergence of a Lanthanide-Rich Kilonova Following the Merger of Two Neutron Stars

We report the discovery and monitoring of the near-infrared counterpart (AT2017gfo) of a binary neutron-star merger event detected as a gravitational wave source by Advanced LIGO/Virgo (GW170817) and as a short gamma-ray burst by Fermi/GBM…

高能天体物理现象 · 物理学 2017-10-17 N. R. Tanvir , A. J. Levan , C. Gonzalez-Fernandez , O. Korobkin , I. Mandel , S. Rosswog , J. Hjorth , P. D'Avanzo , A. S. Fruchter , C. L. Fryer , T. Kangas , B. Milvang-Jensen , S. Rosetti , D. Steeghs , R. T. Wollaeger , Z. Cano , C. M. Copperwheat , S. Covino , V. D'Elia , A. de Ugarte Postigo , P. A. Evans , W. P. Even , S. Fairhurst , R. Figuera Jaimes , C. J. Fontes , Y. I. Fujii , J. P. U. Fynbo , B. P. Gompertz , J. Greiner , G. Hodosan , M. J. Irwin , P. Jakobsson , U. G. Jorgensen , D. A. Kann , J. D. Lyman , D. Malesani , R. G. McMahon , A. Melandri , P. T. O'Brien , J. P. Osborne , E. Palazzi , D. A. Perley , E. Pian , S. Piranomonte , M. Rabus , E. Rol , A. Rowlinson , S. Schulze , P. Sutton , C. C. Thoene , K. Ulaczyk , D. Watson , K. Wiersema , R. A. M. J. Wijers

PSR J1709-4429's Proper Motion and its Relationship to SNR G343.1-2.3

We have obtained a deep 670 ks CXO ACIS image of the remarkable pulsar wind nebula (PWN) of PSR J1709-4429, in 4 epochs during 2018-2019. Comparison with an archival 2004 data set provides a pulsar proper motion mu = 13 \pm 3 mas/yr at a PA…

高能天体物理现象 · 物理学 2021-02-17 Martijn de Vries , Roger W. Romani , Oleg Kargaltsev , George Pavlov , Bettina Posselt , Patrick Slane , Niccolo' Bucciantini , Stephen Ng , Noel Klingler

Expansion and Brightness Changes in the Pulsar-Wind Nebula in the Composite Supernova Remnant Kes 75

We report new Chandra X-ray observations of the shell supernova remnant (SNR) Kes 75 (G29.7-0.3) containing a pulsar and pulsar-wind nebula (PWN). Expansion of the PWN is apparent across the four epochs, 2000, 2006, 2009, and 2016. We find…

高能天体物理现象 · 物理学 2018-04-18 Stephen P. Reynolds , Kazimierz J. Borkowski , Peter H. Gwynne

The Dynamics of Binary Neutron Star Mergers and of GW170817

With the first observation of a binary neutron star merger through gravitational waves and light GW170817, compact binary mergers have now taken the center stage in nuclear astrophysics. They are thought to be one of the main astrophysical…

高能天体物理现象 · 物理学 2020-02-11 David Radice , Sebastiano Bernuzzi , Albino Perego

Multi-Peaked Non-Thermal Light Curves from Magnetar-Powered Gamma-Ray Bursts

Binary neutron star mergers and collapsing massive stars can both create millisecond magnetars. Such magnetars are candidate engines to power gamma-ray bursts (GRBs). The non-thermal light curve of the resulting transients can exhibit…

高能天体物理现象 · 物理学 2025-04-15 Conor M. B. Omand , Nikhil Sarin , Gavin P. Lamb

Modeling dynamical ejecta from binary neutron star mergers and implications for electromagnetic counterparts

In addition to the emission of gravitational waves (GWs) the coalescence and merger of two neutron stars will produce a variety of electromagnetic (EM) signals. In this work we combine a large set of numerical relativity simulations…

广义相对论与量子宇宙学 · 物理学 2017-05-03 Tim Dietrich , Maximiliano Ujevic

Probing Kilonova Ejecta Properties Using a Catalog of Short Gamma-Ray Burst Observations

The discovery of GW170817 and GRB 170817A in tandem with AT 2017gfo cemented the connection between neutron star mergers, short gamma-ray bursts (GRBs), and kilonovae. To investigate short GRB observations in the context of diverse kilonova…

高能天体物理现象 · 物理学 2021-08-11 J. C. Rastinejad , W. Fong , C. D. Kilpatrick , K. Paterson , N. R. Tanvir , A. J. Levan , B. D. Metzger , E. Berger , R. Chornock , B. E. Cobb , T. Laskar , P. Milne , A. E. Nugent , N. Smith