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wsclean: an implementation of a fast, generic wide-field imager for radio astronomy
Astronomical widefield imaging of interferometric radio data is computationally expensive, especially for the large data volumes created by modern non-coplanar many-element arrays. We present a new…
Illuminating gravitational waves: A concordant picture of photons from a neutron star merger
It is demonstrated that merging neutron stars are a long-sought production site forging heavy elements by r-process nucleosynthesis, which is dissimilar to classical short gamma-ray bursts with ultrarelativistic jets.
A debris disk around an isolated young neutron star
The discovery of mid-infrared emission from a cool disk around an isolated young X-ray pulsar, which resembles protoplanetary disks seen around ordinary young stars, suggesting the possibility of planet formation around young neutron stars.
The Murchison Widefield Array: The Square Kilometre Array Precursor at Low Radio Frequencies
- S. Tingay, R. Goeke, +58 authors J. Wyithe
- PhysicsPublications of the Astronomical Society of…
- 29 June 2012
Abstract The Murchison Widefield Array (MWA) is one of three Square Kilometre Array Precursor telescopes and is located at the Murchison Radio-astronomy Observatory in the Murchison Shire of the…
The host galaxy of a fast radio burst
The discovery of a fast radio burst is reported and the identification of a fading radio transient lasting ~6 days after the event, which is used to identify the host galaxy and measure the galaxy’s redshift, which provides a direct measurement of the cosmic density of ionized baryons in the intergalactic medium.
A radio counterpart to a neutron star merger
Radio observations constrain the energy and geometry of relativistic material ejected from a binary neutron star merger, and the detection of a counterpart radio source that appears 16 days after the event is reported, allowing us to diagnose the energetics and environment of the merger.
The Long-Term Evolution of the Spin, Pulse Shape, and Orbit of the Accretion-powered Millisecond Pulsar SAX J1808.4–3658
We present a 7 yr timing study of the 2.5 ms X-ray pulsar SAX J1808.4–3658, an X-ray transient with a recurrence time of 2 yr, using data from the Rossi X-Ray Timing Explorer covering four transient…
A mildly relativistic wide-angle outflow in the neutron-star merger event GW170817
The cocoon model explains the radio light curve of GW170817, as well as the γ-ray and X-ray emission (and possibly also the ultraviolet and optical emission), and is the model that is most consistent with the observational data.
Planetary Nebulae in the NRAO VLA Sky Survey
The 1.4 GHz NRAO VLA Sky Survey (NVSS) images and source catalog were used to detect radio emission from the 885 planetary nebulae north of J2000 declination δ = -40° in the Strasbourg-ESO Catalogue…
Localization and broadband follow-up of the gravitational-wave transient GW150914
A gravitational-wave (GW) transient was identified in data recorded by the Advanced Laser Interferometer Gravitational-wave Observatory (LIGO) detectors on 2015 September 14. The event, initially…