Featured
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Article |
Periodic activity from a fast radio burst source
A periodicity of roughly 16 days is detected for the fast radio burst 180916.J0158+65, suggesting that the burst arises from a periodically modulated mechanism instead of a cataclysmic or sporadic process.
- M. Amiri
- , B. C. Andersen
- & A. V. Zwaniga
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Matters Arising |
Reply to: On the signature of a 70-solar-mass black hole in LB-1
- Jifeng Liu
- , Roberto Soria
- & Hailong Yuan
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Matters Arising |
On the signature of a 70-solar-mass black hole in LB-1
- Michael Abdul-Masih
- , Gareth Banyard
- & Hugues Sana
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Article |
A population of dust-enshrouded objects orbiting the Galactic black hole
The Galactic Centre is orbited by two objects that look like gas and dust clouds but behave more like stars, and now four additional similar objects are reported.
- Anna Ciurlo
- , Randall D. Campbell
- & Alexander P. Stephan
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Article |
A statistical solution to the chaotic, non-hierarchical three-body problem
The ergodic hypothesis is used to produce a statistical solution to the chaotic non-hierarchical three-body problem.
- Nicholas C. Stone
- & Nathan W. C. Leigh
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Article |
A wide star–black-hole binary system from radial-velocity measurements
Radial-velocity measurements of a Galactic B-type star show a dark companion that seems to be a black hole of about 68 solar masses, in a widely spaced binary system.
- Jifeng Liu
- , Haotong Zhang
- & Xiangqun Cui
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Article |
Identification of strontium in the merger of two neutron stars
Reanalysis of the spectra associated with the merger of two neutron stars identifies strontium, spectroscopically establishing the origin of the heavy elements created by rapid neutron capture and proving that neutron stars comprise neutron-rich matter.
- Darach Watson
- , Camilla J. Hansen
- & Elena Pian
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Letter |
Nine-hour X-ray quasi-periodic eruptions from a low-mass black hole galactic nucleus
Galaxy GSN 069 has unprecedented eruptions of X-ray light every nine hours, which indicate fast transitions between cold and warm states and may shed light on black hole accretion.
- G. Miniutti
- , R. D. Saxton
- & B. Agís-González
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Letter |
Fast inflows as the adjacent fuel of supermassive black hole accretion disks in quasars
Observations of highly redshifted broad absorption lines of helium and hydrogen atoms provide unambiguous evidence of fast infalling gas that is merging into an accretion disk around a black hole.
- Hongyan Zhou
- , Xiheng Shi
- & Zhihao Zhong
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Letter |
General relativistic orbital decay in a seven-minute-orbital-period eclipsing binary system
Observations of an eclipsing double-white-dwarf binary with an orbital period of 6.91 minutes that is decaying as predicted by general relativity are reported; once launched, the Laser Interferometer Space Antenna (LISA) should swiftly detect this binary.
- Kevin B. Burdge
- , Michael W. Coughlin
- & Thomas A. Prince
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Letter |
A cool accretion disk around the Galactic Centre black hole
Emission from the 1.3-millimetre hydrogen recombination line reveals a rotating disk of cool gas 0.004 parsecs in radius around the supermassive black hole at the centre of our Galaxy.
- Elena M. Murchikova
- , E. Sterl Phinney
- & Roger D. Blandford
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Letter |
Collapsars as a major source of r-process elements
A rare type of supernova—triggered by the collapse of a rapidly rotating single star—could have provided more than 80 per cent of the r-process elements in the Universe.
- Daniel M. Siegel
- , Jennifer Barnes
- & Brian D. Metzger
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Letter |
A rapidly changing jet orientation in the stellar-mass black-hole system V404 Cygni
The relativistic jets associated with the black-hole X-ray binary system V404 Cygni change their orientation on time scales of minutes to hours, implying that the direction of the jets is being affected by the dynamics of the surrounding accretion flow that powers them.
- James C. A. Miller-Jones
- , Alexandra J. Tetarenko
- & Valeriu Tudose
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Review Article |
The new frontier of gravitational waves
The history and advancements of gravitational-wave astronomy are reviewed and the future of the field is discussed.
- M. Coleman Miller
- & Nicolás Yunes
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Letter |
A magnetar-powered X-ray transient as the aftermath of a binary neutron-star merger
Observations of an X-ray transient associated with a galaxy at redshift 0.738 suggest that the X-ray transient is powered by a millisecond magnetar and that it is the remnant of a merger between two neutron stars.
- Y. Q. Xue
- , X. C. Zheng
- & F. Vito
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Letter |
Spatially resolved rotation of the broad-line region of a quasar at sub-parsec scale
High-angular-resolution observations of the quasar 3C 273 reveal that it has a relatively small but thick disk, viewed nearly face-on, in which material is orbiting the central supermassive black hole.
- E. Sturm
- , J. Dexter
- & F. Widmann
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Letter |
An evolving jet from a strongly magnetized accreting X-ray pulsar
Observations of a jet from a strongly magnetized neutron star reveal that strong magnetic fields do not prevent jet formation and suggest that stellar properties influence jet power.
- J. van den Eijnden
- , N. Degenaar
- & J. V. Hernández Santisteban
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Letter |
Universality of free fall from the orbital motion of a pulsar in a stellar triple system
The accelerations of a pulsar and a white dwarf in a three-star system differ by at most a few parts per million, providing a much improved constraint on the universality of free fall.
- Anne M. Archibald
- , Nina V. Gusinskaia
- & Ingrid H. Stairs
Resolving acceleration to very high energies along the jet of Centaurus A