The GMRT High Resolution Southern Sky Survey for pulsars and transients -I. Survey description and initial discoveries

@article{Bhattacharyya2015TheGH,
  title={The GMRT High Resolution Southern Sky Survey for pulsars and transients -I. Survey description and initial discoveries},
  author={Bhaswati Bhattacharyya and S. Cooper and Mateusz Malenta and Jayanta Roy and Jayaram N. Chengalur and Michael J. Keith and Sanjay Kudale and Maura Mclaughlin and Scott M. Ransom and Paul S. Ray and Ben W. Stappers},
  journal={arXiv: Solar and Stellar Astrophysics},
  year={2015}
}
We are conducting a survey for pulsars and transients using the Giant Metrewave Radio Telescope (GMRT). The GMRT High Resolution Southern Sky (GHRSS) survey is an off-Galactic-plane (|b|>5) survey in the declination range -40 deg to -54 deg at 322 MHz. With the high time (up to 30.72 micro-sec) and frequency (up to 0.016275 MHz) resolution observing modes, the 5-sigma detection limit is 0.5 mJy for a 2 ms pulsar with 10% duty cycle at 322 MHz. Total GHRSS sky coverage of 2866 square-deg, will… 
View PDF on arXiv
22 Citations
Highly Influential Citations
1
Background Citations
6
Methods Citations
4

22 Citations

Citation Type

Citation Type

The GMRT High-resolution Southern Sky Survey for Pulsars and Transients. II. New Discoveries, Timing, and Polarization Properties
We have been conducting the GMRT High Resolution Southern Sky (GHRSS) survey for the last four years and have discovered 18 pulsars to date. The GHRSS survey is an off-Galactic-plane survey at 322…
Search for pulsars and transients with the GMRT
Abstract This paper details on the discovery of 21 pulsars using the Giant Metrewave Radio Telescope (GMRT) from targeted (Fermi directed search) and blind surveys (GMRT High Resolution Southern Sky…
The FAST Galactic Plane Pulsar Snapshot survey: I. Project design and pulsar discoveries ⋆ ⋆ News and views on this paper
Discovery of pulsars is one of the main goals for large radio telescopes. The Five-hundred-meter Aperture Spherical radio Telescope (FAST), that incorporates an L-band 19-beam receiver with a system…
The LOFAR Tied-Array All-Sky Survey (LOTAAS): Survey overview and initial pulsar discoveries
We present an overview of the LOFAR Tied-Array All-Sky Survey (LOTAAS) for radio pulsars and fast transients. The survey uses the high-band antennas of the LOFAR Superterp, the dense inner part of…
Discovery and Timing of Three Millisecond Pulsars in Radio and Gamma-Rays with the Giant Metrewave Radio Telescope and Fermi Large Area Telescope
We performed deep observations to search for radio pulsations in the directions of 375 unassociated Fermi Large Area Telescope γ-ray sources using the Giant Metrewave Radio Telescope (GMRT) at 322…
Time-domain Astronomy with the GMRT: uGMRT to eGMRT
  • J. Roy
  • Physics
    Proceedings of the International Astronomical Union
  • 2017
Abstract The upgraded GMRT (uGMRT) with its unprecedented sensitivity and high figure of merit, is expected to result in the discovery of a large population of pulsars including pulsars of previously…
The prospects of pulsar timing with new-generation radio telescopes and the Square Kilometre Array
TLDR
Present and near-future pulsar surveys, especially those using the new generation of telescopes, will find more extreme binary systems and pulsars that are more precise ‘clocks’ and the increased number of sources will reveal rare sources, including possibly a pulsar–black hole binary, which can provide the most stringent tests of strong-field gravity.
Pulsar Timing Array Experiments
Pulsar timing is a technique that uses the highly stable spin periods of neutron stars to investigate a wide range of topics in physics and astrophysics. Pulsar timing arrays (PTAs) use sets of…
An image-based search for pulsars among Fermi unassociated LAT sources
We describe an image-based method that uses two radio criteria, compactness and spectral index, to identify promising pulsar candidates among Fermi Large Area Telescope (LAT) unassociated sources.…
The expanded Giant Metrewave Radio Telescope
With 30 antennas and a maximum baseline length of 25 km, the Giant Metrewave Radio Telescope (GMRT) is the premier low-frequency radio interferometer today. We have carried out a study of possible…
...
...

References

SHOWING 1-10 OF 75 REFERENCES
The High Time Resolution Universe Pulsar Survey - I. System configuration and initial discoveries
TLDR
With ∼30 per cent of the mid-latitude survey complete, the 13-beam multibeam receiver on the Parkes Radio Telescope has redetected 223 previously known pulsars and discovered 27 pulsars, five of which are millisecond pulsars.
The LOFAR pilot surveys for pulsars and fast radio transients
We have conducted two pilot surveys for radio pulsars and fast transients with the Low-Frequency Array (LOFAR) around 140 MHz and here report on the first low-frequency fast-radio burst limit and the…
The Green Bank Northern Celestial Cap Pulsar Survey - I: Survey Description, Data Analysis, and Initial Results
We describe an ongoing search for pulsars and dispersed pulses of radio emission, such as those from rotating radio transients (RRATs) and fast radio bursts (FRBs), at 350 MHz using the Green Bank…
A search for rotating radio transients and fast radio bursts in the Parkes high-latitude pulsar survey
Discoveries of rotating radio transients and fast radio bursts (FRBs) in pulsar surveys suggest that more of such transient sources await discovery in archival data sets. Here we report on a…
Goals, strategies and first discoveries of ao327, the arecibo all-sky 327 MHz drift pulsar survey
We report initial results from AO327, a drift survey for pulsars with the Arecibo telescope at 327 MHz. The first phase of AO327 will cover the sky at declinations of –1° to 28°, excluding the region…
The Parkes Multibeam Pulsar Survey - VI. Discovery and timing of 142 pulsars and a Galactic population analysis
We present the discovery and follow-up observations of 142 pulsars found in the Parkes 20-cm multibeam pulsar survey of the Galactic plane. These new discoveries bring the total number of pulsars…
The Parkes multi-beam pulsar survey - I. Observing and data analysis systems, discovery and timing of 100 pulsars
limiting flux density of the survey is about 0.2 mJy. At shorter or longer periods or higher dispersions, the sensitivity is reduced. Timing observations are carried out for pulsars discovered in the…
GMRT Discovery of PSR J1544+4937: An Eclipsing Black-widow Pulsar Identified with a Fermi-LAT Source
Using the Giant Metrewave Radio Telescope (GMRT) we performed deep observations to search for radio pulsations in the directions of unidentified Fermi Large Area Telescope (LAT) gamma-ray sources. We…
Arecibo pulsar survey using ALFA. I. Survey strategy and first discoveries
We report results from the initial stage of a long-term pulsar survey of the Galactic plane using the Arecibo L-band Feed Array (ALFA), a seven-beam receiver operating at 1.4 GHz with 0.3 GHz…
Five new fast radio bursts from the HTRU high-latitude survey at Parkes: First evidence for two-component bursts
The detection of five new fast radio bursts (FRBs) found in the 1.4-GHz High Time Resolution Universe high-latitude survey at Parkes, is presented. The rate implied is 7(-3)(+5) x 10(3) (95 per cent)…
...
...