English
Related papers

Related papers: Fast Search Techniques for High Energy Pulsars

200 papers

We present a spatially resolved spectroscopic analysis of the young Galactic supernova remnant Kes 75 (SNR G29.7-0.3) using the Chandra X-ray Observatory. Kes 75 is one of an increasing number of examples of a shell-type remnant with a…

Astrophysics · Physics 2009-11-07 David J. Helfand , Benjamin F. Collins , E. V. Gotthelf

Pulsar search with time-domain observation is very computationally expensive and data volume will be enormous with the next generation telescopes such as the Square Kilometre Array. We apply artificial neural networks (ANNs), a machine…

Instrumentation and Methods for Astrophysics · Physics 2020-03-17 Naoyuki Yonemaru , Keitaro Takahashi , Hiroki Kumamoto , Shi Dai , Shintaro Yoshiura , Shinsuke Ideguchi

The sheer number of pulsars discovered by the SKA, in combination with the exceptional timing precision it can provide, will revolutionize the field of pulsar astrophysics. The SKA will provide a complete census of pulsars in both the…

Astrophysics · Physics 2011-07-19 J. M. Cordes , M. Kramer , T. J. W. Lazio , B. W. Stappers , D. C. Backer , S. Johnston

We have used the unique low frequency sensitivity of the Large Phased Array radio telescope of Pushchino Radio Astronomy Observatory to collect dataset of the single pulse observations of second period pulsars of the Northern hemisphere.…

High Energy Astrophysical Phenomena · Physics 2018-02-19 Kazantsev A. N. , Potapov V. A

We report on $XMM-Newton$ EPIC observations of the young pulsar J2022+3842, with a characteristic age of 8.9 kyr. We detected X-ray pulsations and found the pulsation period $P\approx 48.6$ ms, and its derivative $\dot{P}\approx 8.6\times…

High Energy Astrophysical Phenomena · Physics 2015-06-19 P. Arumugasamy , G. G. Pavlov , O. Kargaltsev

We present observations of fields containing eight recently discovered binary millisecond pulsars using the telescopes at MDM Observatory. Optical counterparts to four of these systems are detected, one of which, PSR J2214+3000, is a novel…

High Energy Astrophysical Phenomena · Physics 2015-06-18 Joshua Schroeder , Jules Halpern

We present the results of processing an additional 44% of the High Time Resolution Universe South Low Latitude (HTRU-S LowLat) pulsar survey, the most sensitive blind pulsar survey of the southern Galactic plane to date. Our…

We have undertaken a systematic search for candidate supernovae from high-redshift Population III stars in a field that has been observed with repeated imaging on a cadence of 2-3 weeks over a 2.2 year baseline, the Spitzer/IRAC Dark Field.…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-13 Mark I Frost , Jason Surace , Leonidas A Moustakas , Jessica Krick

We use the Hough transform to analyze data from the second science run of the LIGO interferometers, to look for gravitational waves from isolated pulsars. We search over the whole sky and over a large range of frequencies and spin-down…

General Relativity and Quantum Cosmology · Physics 2009-11-11 Badri Krishnan

We report the discovery of nine previously unknown gamma-ray pulsars in a blind search of data from the Fermi Large Area Telescope (LAT). The pulsars were found with a novel hierarchical search method originally developed for detecting…

The discovery of fast and variable coherent signals in a handful of ultraluminous X-ray sources (ULXs) testifies to the presence of super-Eddington accreting neutron stars, and drastically changed the understanding of the ULX class. Our…

We present the second and final set of TRAPUM searches for pulsars at 1284 MHz inside supernova remnants and pulsar wind nebulae with the MeerKAT telescope. No new pulsars were detected for any of the 80 targets, which include some…

Neutron stars that show X-ray and $\gamma$-ray pulsed emission must, somewhere in the magnetosphere, generate electron-positron pairs. Such pairs are also required for radio emission, but then why do a number of these sources appear radio…

High Energy Astrophysical Phenomena · Physics 2023-04-19 Inés Pastor-Marazuela , Samayra M. Straal , Joeri van Leeuwen , Vlad I. Kondratiev

It has been proposed that radio pulsars can be distinguished from other point-like radio sources in continuum images by their unique interstellar scintillation signatures. Using data from the Australian Square Kilometre Array Pathfinder…

We report on radio observations of four magnetars SGR 0501+4516, Swift 1834.9-0846, 1E 1841-045, SGR 1900+14 and a magnetar-like pulsar PSR J1846-0258 with the Five-hundred-meter Aperture Spherical radio Telescope (FAST) at 1250 MHz.…

High Energy Astrophysical Phenomena · Physics 2024-12-31 Juntao Bai , Na Wang , Shi Dai , Shuangqiang Wang , Jianping Yuan , Wenming Yan , Lunhua Shang , Xin Xu , Shijun Dang , Zhen Zhang

The isolated neutron star candidate RBS 1223 was observed with the Advanced CCD Imaging Spectrometer aboard the Chandra X-ray observatory on 2000 June 24. A timing analysis of the data yielded a periodic modulation with a period…

Astrophysics · Physics 2009-11-07 V. Hambaryan , G. Hasinger , A. D. Schwope , N. S. Schulz

We report on the serendipitous X-ray detection, using the Chandra X-ray Observatory, of the radio pulsar J1718-3718. This pulsar has one of the highest inferred surface dipole magnetic fields in the radio pulsar population (B = 7.4e13 G),…

Astrophysics · Physics 2009-11-10 V. M. Kaspi , M. A. McLaughlin

I discuss methods and current software packages for radio searches for pulsars and short-duration transients. I then describe the properties of the current pulsar population and the status of and predictions for ongoing and future surveys.…

Solar and Stellar Astrophysics · Physics 2015-05-27 Maura McLaughlin

Rotation-powered pulsars and magnetars are two different observational manifestations of neutron stars: rotation powered pulsars are rapidly spinning objects that are mostly observed as pulsating radio sources, while magnetars, neutron…

High Energy Astrophysical Phenomena · Physics 2017-11-08 R. F. Archibald , M. Burgay , M. Lyutikov , V. M. Kaspi , P. Esposito , G. Israel , M. Kerr , A. Possenti , N. Rea , J. Sarkissian , P. Scholz , S. P. Tendulkar

Based on a deep ROSAT HRI observation, we have detected a pulsed signal in the 0.1-2 keV band from PSR J0537-6910 --- the recently discovered pulsar associated with the supernova remnant N157B in the Large Magellanic Cloud. The measured…

Astrophysics · Physics 2009-10-31 Q. Daniel Wang , E. V. Gotthelf
‹ Prev 1 8 9 10 Next ›