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Showing results for: [ Levin, Lina ]
PSR~J1759-2402 is one of a small handful of pulsars which are in orbit about high mass stars. Its orbital period is 8.2 years and the orbit is highly eccentric with periastron expected in 2021 January... more. Although discovered at Parkes, the Lovell telescope has been monitoring the pulsar over many years. However, it's restricted bandwidth and lack of polarization capability make it unsuitable to follow the pulsar as it enters and leaves the eclipse by the companion. In contrast, the UWL on Parkes with its wide-band and excellent polarization characteristics means that we can determine scattering, polarization, dispersion measure and rotation measure changes as the pulsar enters its companion wind. We request weekly observations of the pulsar to track its progress around the orbit.less
Australia Telescope National Facility - P1038 - Wide-band observations of PSR J1759-2402 through periastron - Published 04 Aug 2020
With this proposal we ask time to begin a follow-up campaign of potential new discoveries from the TRAPUM (TRAnsients and PUlsars with Meerkat) survey, which is due to start in January 2020. About 10 ... morenew pulsars are expected to be found during the first semester of operations, in targeted pointings towards supernova remnants, pulsar wind nebulae and Fermi unidentified point sources. Timing observations have an essential role in exploiting the full potential of any pulsar discovery, allowing the precise measurement of rotational, astrometric and orbital parameters which, in turn, give us powerful tools to improve our understanding of the physics in extreme environments as well as of the population of neutron stars as a whole. The UWL receiver of the Parkes telescope is a sensitive, versatile instrument that will allow us to successfully time the bright-end of TRAPUM discoveries. We here request (up to) 2-hr long monthly observations of any new TRAPUM pulsar with a flux density at 1.4 GHz above $\sim 60 \mu$Jy.less
Australia Telescope National Facility - P1054 - Initial follow-up of pulsar discoveries from MeerKAT targetted searches - Published 24 Jul 2020
Australia Telescope National Facility - P1038 - Wide-band observations of PSR J1759-2402 through periastron - Published 23 Jul 2020
Australia Telescope National Facility - P1038 - Wide-band observations of PSR J1759-2402 through periastron - Published 13 Jun 2020
Australia Telescope National Facility - P1054 - Initial follow-up of pulsar discoveries from MeerKAT targetted searches - Published 05 Jun 2020
Australia Telescope National Facility - P1038 - Wide-band observations of PSR J1759-2402 through periastron - Published 27 May 2020
Australia Telescope National Facility - P1038 - Wide-band observations of PSR J1759-2402 through periastron - Published 24 May 2020
Australia Telescope National Facility - P1038 - Wide-band observations of PSR J1759-2402 through periastron - Published 20 May 2020
Australia Telescope National Facility - P1054 - Initial follow-up of pulsar discoveries from MeerKAT targetted searches - Published 13 May 2020
Australia Telescope National Facility - P1038 - Wide-band observations of PSR J1759-2402 through periastron - Published 26 Apr 2020
Australia Telescope National Facility - P1038 - Wide-band observations of PSR J1759-2402 through periastron - Published 19 Apr 2020
Recently there has been great success at Parkes discovering millisecond pulsars (MSPs), a class that includes some of the most interesting and scientifically valuable pulsars known. In the last few ye... morears, we have discovered more than 40 MSPs though the High Time Resolution Universe Survey (P630) and Fermi searches (P675/P814). Here we propose to carry out precision timing of these sources to fully exploit these discoveries. Additionally, we continue to study the most significant of the discoveries from the Parkes Multibeam Pulsar Survey (P268). To maximise scientific impact, we have combined the most important sources from various previous proposals into this project, reducing total observation time required and easing the burden on the scheduler.less
Australia Telescope National Facility - P789 - Timing of Binary & Millisecond Pulsars Discovered at Parkes - Published 01 Apr 2020
Australia Telescope National Facility - P789 - Timing of Binary & Millisecond Pulsars Discovered at Parkes - Published 31 Mar 2020
Australia Telescope National Facility - P789 - Timing of Binary & Millisecond Pulsars Discovered at Parkes - Published 10 Mar 2020
Australia Telescope National Facility - P789 - Timing of Binary & Millisecond Pulsars Discovered at Parkes - Published 19 Feb 2020
Australia Telescope National Facility - P789 - Timing of Binary & Millisecond Pulsars Discovered at Parkes - Published 03 Feb 2020
Australia Telescope National Facility - P789 - Timing of Binary & Millisecond Pulsars Discovered at Parkes - Published 16 Nov 2019
SUPERBx looks at the highest Galactic latitudes in a search for pulsars and fast radio bursts (FRBs). We use optimised GPU codes and supercomputing to search for these, making discoveries in real time... more. Handling our data as it comes in is essential for the SKA Phase I era so this work applies directly to the high-data rates of next generation telescopes. Our pulsar discoveries are typically nearby scintillating sources, intermittent sources and those in interesting binary systems. Our FRB discoveries have discovery lags of ~1 second, rather than months/years and these feed rapid alerts to the world-wide follow-up community via a dedicated VOEvent format an Astronomer's Telegrams. The goal of this is to allow localisation of the discovered FRBs. This is key for identifying FRB host galaxies, so as to solve the mystery of their progenitors and to exploit their many uses as tools for precision cosmology measurements.less
Australia Telescope National Facility - P892 - SUPERBx - The SUrvey for Pulsars & Extragalactic Radio Bursts Extension - Published 07 Nov 2019
Australia Telescope National Facility - P789 - Timing of Binary & Millisecond Pulsars Discovered at Parkes - Published 18 Oct 2019
Australia Telescope National Facility - P892 - SUPERBx - The SUrvey for Pulsars & Extragalactic Radio Bursts Extension - Published 15 Oct 2019
Australia Telescope National Facility - P892 - SUPERBx - The SUrvey for Pulsars & Extragalactic Radio Bursts Extension - Published 07 Oct 2019
Australia Telescope National Facility - P892 - SUPERBx - The SUrvey for Pulsars & Extragalactic Radio Bursts Extension - Published 06 Oct 2019
Australia Telescope National Facility - P892 - SUPERBx - The SUrvey for Pulsars & Extragalactic Radio Bursts Extension - Published 05 Oct 2019
Australia Telescope National Facility - P892 - SUPERBx - The SUrvey for Pulsars & Extragalactic Radio Bursts Extension - Published 04 Oct 2019
Australia Telescope National Facility - P789 - Timing of Binary & Millisecond Pulsars Discovered at Parkes - Published 01 Oct 2019
