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Van Leeuwen Bonn VII, 2015-05-18ARTS, The Apertif Radio Transient System
ARTS – the Apertif Radio Transient System
Van Leeuwen Bonn VII, 2015-05-18ARTS, The Apertif Radio Transient System
Fast radio bursts & Intermittent pulsars
Background and basics
Afte
r Kea
ne e
t al.
(201
1)
Van Leeuwen Bonn VII, 2015-05-18ARTS, The Apertif Radio Transient System
Science – Cosmological radio bursts
The origin of the bursts remains unexplained.
Coalescing compact objects? X-ray afterglowsConnected to the unexplained slow radio transients? Radio afterglows
Supernova related? Optical, host galaxiesNaked explosions? Consistent absence of galaxies
Detect, localize, characterize
Van Leeuwen Bonn VII, 2015-05-18ARTS, The Apertif Radio Transient System
Apertif – Phased Array Feeds
Van Leeuwen Bonn VII, 2015-05-18ARTS, The Apertif Radio Transient System
Apertif – WSRT: Increased field of view
Van Leeuwen Bonn VII, 2015-05-18ARTS, The Apertif Radio Transient System
Apertif – WSRT: Increased field of view
Van Leeuwen Bonn VII, 2015-05-18ARTS, The Apertif Radio Transient System
Science – Overview
What is the fundamental physics of space-time and matter?Where does our understanding of general relativity break down?
How is matter accreted and expelled in strong gravity?How do black holes influence galaxy formation?
Discover and characterizecosmological radio bursts, supernovae, neutron stars, and black holes.
Van Leeuwen Bonn VII, 2015-05-18ARTS, The Apertif Radio Transient System
Science – Supernovae and Gamma-Ray Bursts
Para
giet
al.
(201
0)
Van Leeuwen Bonn VII, 2015-05-18ARTS, The Apertif Radio Transient System
Science – Neutron Stars
Afte
r Dem
ores
t et a
l. (2
010)
Van Leeuwen Bonn VII, 2015-05-18ARTS, The Apertif Radio Transient System
Science – Black Holes, AGN, and Galaxy Formation
Gar
rett
et a
l. (2
001)
Van Leeuwen Bonn VII, 2015-05-18ARTS, The Apertif Radio Transient System
The problem – and the opportunity
Van Leeuwen Bonn VII, 2015-05-18ARTS, The Apertif Radio Transient System
The solution: a hybrid FPGA-GPU transient machine
2.1 Tbps –> 150 Gbps25 TMAC/s
150 Gbps -> 3.0 Tbps -> 0.2 Gbps500 TFLOPS
Van Leeuwen Bonn VII, 2015-05-18ARTS, The Apertif Radio Transient System
The ALERT survey
Van Leeuwen Bonn VII, 2015-05-18ARTS, The Apertif Radio Transient System
Apertif: 9 deg2 field, 20 frames/ms
Westerbork Apertif
The ALERT survey
Van Leeuwen Bonn VII, 2015-05-18ARTS, The Apertif Radio Transient System
LOFAR: resolution and sensitivity, at low frequency
The ALERT survey
Van Leeuwen Bonn VII, 2015-05-18ARTS, The Apertif Radio Transient System
ARTS Compared
Van Leeuwen Bonn VII, 2015-05-18ARTS, The Apertif Radio Transient System
The ALERT survey
ARTS & The ALERT survey (ERC): Radio, x-ray, gravitational-wave & optical follow-up –
Interpretation & modelling –Host and progenitor associations, expected rates
Electron density and distribution along lines of sightCoherent & afterglow emission, acceleration, densities
Van Leeuwen Bonn VII, 2015-05-18ARTS, The Apertif Radio Transient System
Conclusions
Apertif: First 6 dishes now being converted. Up to all 12 before Winter Comes.ARTS: Requirements review completed; Preliminary Design Review in July, Critical
Design Review in November.
Apertif on WSRT will offer a combination that is unique in the world, of wide-field detection and high-precision radio characterization.–