中文
相关论文

相关论文: Understanding the Galactic population of normal pu…

200 篇论文

[ABRIDGED] 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 found by the survey to 742. In…

Pulsars are highly magnetized rotating neutron stars, emitting in a broad electromagnetic energy range. Reproducing the observed pulsars population refines our understanding of their formation and evolution scenarios as well as their…

高能天体物理现象 · 物理学 2024-11-27 Mattéo Sautron , Jérôme Pétri , Dipanjan Mitra , Ludmilla Dirson

We review current understanding of the underlying, as opposed to the observed, pulsar population. The observed sample is heavily biased by selection effects, so that surveys see less than 10% of all potentially observable pulsars. We…

天体物理学 · 物理学 2007-05-23 D. R. Lorimer

Among the current sample of over 2000 radio pulsars known primarily in the disk of our Galaxy, millisecond pulsars now number almost 200. Due to the phenomenal success of blind surveys of the Galactic field, and targeted searches of Fermi…

星系天体物理 · 物理学 2015-06-11 Duncan R. Lorimer

The Parkes 20 cm Multibeam pulsar surveys have discovered nearly half of the known pulsars and revealed many distant pulsars with high dispersion measures. Using a sample of 1,301 pulsars from these surveys, we have explored the spatial…

高能天体物理现象 · 物理学 2024-02-23 J. T. Xie , J. B. Wang , N. Wang , R. Manchester , G. Hobbs

We present results of our pulsar population synthesis of ordinary isolated and millisecond pulsars in the Galactic plane. Over the past several years, a program has been developed to simulate pulsar birth, evolution and emission using Monte…

天体物理学 · 物理学 2008-11-26 Peter L. Gonthier , Sarah A. Story , Brian D. Clow , Alice K. Harding

We present results of a population synthesis of millisecond pulsars from the Galactic disk. Excluding globular clusters, we model the spatial distribution of millisecond pulsars by assuming their birth in the Galactic disk with a random…

天体物理学 · 物理学 2008-11-26 Sarah A. Story , Peter L. Gonthier , Alice K. Harding

The recent discovery of a magnetar in the Galactic centre region has allowed Spitler et al. to characterize the interstellar scattering in that direction. They find that the temporal broadening of the pulse profile of the magnetar is…

高能天体物理现象 · 物理学 2015-06-17 Jayanth Chennamangalam , D. R. Lorimer

We present preliminary results of a pulsar population synthesis of normal pulsars from the Galactic disk using a Markov Chain Monte Carlo method to better understand the parameter space of the assumed model. We use the Kuiper test, similar…

高能天体物理现象 · 物理学 2012-06-27 Peter L. Gonthier , Caleb D. Billman , Alice K. Harding

Pulsars have long been studied in the electromagnetic spectrum. Their environments are rich in high-energy cosmic-ray electrons and positrons likely enriching the interstellar medium with such particles. In this work we use recent…

高能天体物理现象 · 物理学 2022-01-26 Ilias Cholis , Iason Krommydas

Population synthesis modeling of the observed dynamical and physical properties of a population is a highly effective method for constraining the underlying birth parameters and evolutionary tracks. In this work, we apply a population…

高能天体物理现象 · 物理学 2025-06-16 Mattéo Sautron , Alexander Eli McEwen , George Younes , Jérôme Pétri , Paz Beniamini , Daniela Huppenkothen

We investigate the birth and evolution of Galactic isolated radio pulsars. We begin by estimating their birth space velocity distribution from proper motion measurements of Brisken et al. (2002, 2003). We find no evidence for multimodality…

天体物理学 · 物理学 2008-11-26 C. -A. Faucher-Giguere , V. M. Kaspi

The computation of theoretical pulsar populations has been a major component of pulsar studies since the 1970s. However, the majority of pulsar population synthesis has only regarded isolated pulsar evolution. Those that have examined…

天体物理学 · 物理学 2009-11-13 Paul Kiel , Jarrod Hurley , Matthew Bailes , James Murray

We revisit the population synthesis of isolated radio-pulsars incorporating recent advances on the evolution of the magnetic field and the angle between the magnetic and rotational axes from new simulations of the magneto-thermal evolution…

高能天体物理现象 · 物理学 2014-06-27 Miguel Gullón , Juan A. Miralles , Daniele Viganò , José A. Pons

The majority of pulsar population synthesis studies performed to date have focused on isolated pulsar evolution. Those that have incorporated pulsar evolution within binary systems have tended to either treat binary evolution poorly of…

天体物理学 · 物理学 2009-06-23 Paul Kiel , Jarrod Hurley , Matthew Bailes , James Murray

Traditional pulsar surveys have primarily employed time-domain periodicity searches. However, these methods are susceptible to effects like scattering, eclipses and orbital motion. At lower radio frequencies (<= 300 MHz), factors such as…

高能天体物理现象 · 物理学 2024-11-20 S. Sett , M. Sokolowski , E. Lenc , N. D. R. Bhat

The population of young, non-recycled pulsars with spin down energies Edot >10^35 erg/s is sampled predominantly at gamma-ray and radio wavelengths. A total of 137 such pulsars are known, with partial overlap between the sources detectable…

高能天体物理现象 · 物理学 2020-07-29 Simon Johnston , D. A. Smith , A. Karastergiou , M. Kramer

Current wisdom accounts to the diversity of neutron star observational manifestations to their birth scenarios, influencing their thermal and magnetic field evolution. Among the kind of observed neutron stars, radio pulsars represent by far…

高能天体物理现象 · 物理学 2022-11-16 Ludmilla Dirson , Jérôme Pétri , Dipanjan Mitra

We investigate the birth and evolution of isolated radio pulsars using a population synthesis method, modeling the birth properties of the pulsars, their time evolution, and their detection in the Parkes and Swinburne Multibeam (MB)…

天体物理学 · 物理学 2007-10-25 C. -A. Faucher-Giguere , V. M. Kaspi

Aims. We estimate the number of pulsars, detectable as continuous gravitational wave sources with the current and future gravitational-wave detectors, assuming a simple phenomenological model of evolving non-axisymmetry of the rotating…

广义相对论与量子宇宙学 · 物理学 2021-05-19 Marek Cieślar , Tomasz Bulik , Małgorzata Curyło , Magdalena Sieniawska , Neha Singh , Michał Bejger
‹ 上一页 1 2 3 10 下一页 ›