English
Related papers

Related papers: Unveiling Low-Frequency Eclipses in Spider MSPs us…

200 papers

XSS J12270-4859 is an X-ray binary associated with the Fermi LAT gamma-ray source 1FGL J1227.9-4852. In 2012 December, this source underwent a transition where the X-ray and optical luminosity dropped and the spectral signatures of an…

We have discovered five millisecond pulsars (MSPs) in a survey of 14 unidentified Fermi-LAT sources in the southern sky using the Parkes radio telescope. PSRs J0101-6422, J1514-4946, and J1902-5105 reside in binaries, while PSRs J1658-5324…

The Five-hundred-meter Aperture Spherical Telescope is discovering hundreds of new pulsars, including a slowly spinning compact binary millisecond pulsar (spin period $P_{\rm spin}=14.2$\,ms) which showed radio eclipses and evidence of…

High Energy Astrophysical Phenomena · Physics 2025-06-02 Devina Misra , Karri I. I. Koljonen , Manuel Linares

The frequency dependent eclipses of the radio emission from millisecond pulsars (MSPs) in compact binary systems provide an opportunity to understand the eclipse mechanism and to determine the nature of the eclipsing medium. We combine…

High Energy Astrophysical Phenomena · Physics 2021-10-15 Devojyoti Kansabanik , Bhaswati Bhattacharyya , Jayanta Roy , Benjamin Stappers

We study the timing stability of three black widow pulsars, both in terms of their long-term spin evolution and their shorter-term orbital stability. The erratic timing behaviour and radio eclipses of the first two black widow pulsar…

We report on the first Green Bank Telescope observations at 427, 820 and 1400 MHz of the newly discovered, highly inclined and relativistic double pulsar binary. We focus on the brief eclipse of PSR J0737-3039A, the faster pulsar, when it…

Astrophysics · Physics 2009-11-10 V. M. Kaspi , S. M. Ransom , D. C. Backer , R. Ramachandran , P. Demorest , J. Arons , A. Spitkovsky

We present an analysis of the polarization of three black widow pulsars, PSRs B1957+20, J2055+3829 and J1544+4937 at 1250\,MHz using the Five-hundred-meter Aperture Spherical radio Telescope (FAST). Radio eclipses for PSRs B1957+20 and…

High Energy Astrophysical Phenomena · Physics 2025-06-17 S. Q. Wang , N. Wang , S. Dai , G. Hobbs , R. Luo , J. B. Wang , A. Zic

We discovered four millisecond pulsars (MSPs) in searches of 80 $\gamma$-ray sources conducted from 2015 to 2017 with the Murriyang radio telescope of the Parkes Observatory. We provide an overview of the survey and focus on the results of…

Millisecond pulsars (MSPs) are powerful probes of globular clusters (GCs), tracing stellar evolution, cluster dynamics, and the local gravitational potential. We investigate the MSP population in GC Omega Centauri. We perform Fourier-domain…

We have discovered a partially eclipsing white dwarf, low-mass M dwarf binary (3 hour 54.41 second orbital period), SDSS J143547.87+373338.5, from May 2007 observations at the WIYN telescope. Here we present blue band photometry of three…

Astrophysics · Physics 2009-11-13 Justin D. R. Steinfadt , Lars Bildsten , Steve B. Howell

We report the discovery of the first radio pulsar associated with NGC 6712, an eclipsing black widow (BW) pulsar, J1853$-$0842A, found by high-sensitivity searches using the Five-hundred-meter Aperture Spherical radio Telescope. This 2.15…

High Energy Astrophysical Phenomena · Physics 2021-11-17 Zhen Yan , Zhi-chen Pan , Scott M. Ransom , Duncan R. Lorimer , Lei Qian , Pei Wang , Zhi-qiang Shen , Di Li , Peng Jiang , Jin-Tao Luo , Jie Liu , Zhi-peng Huang

The eclipses seen in the radio emission of some pulsars can be invaluable to study the properties of the material from the companion stripped away by the pulsar. We present a study of six consecutive eclipses of PSR J0024-7204O in the…

High Energy Astrophysical Phenomena · Physics 2024-07-23 F. Abbate , A. Possenti , A. Ridolfi , S. Buchner , M. Geyer , M. Kramer , L. Zhang , A. Corongiu , F. Camilo , M. Bailes

High sensitivity radio searches of unassociated $\gamma$-ray sources have proven to be an effective way of finding new pulsars. Using the Five-hundred-meter Aperture Spherical radio Telescope (FAST) during its commissioning phase, we have…

Millisecond pulsars (MSPs) represent nearly half of the more than 160 currently known $\gamma$-ray pulsars detected by the Large Area Telescope on the \textit{Fermi} satellite, and a third of all known MSPs are seen in $\gamma$ rays. The…

High Energy Astrophysical Phenomena · Physics 2016-03-02 L. Guillemot , D. A. Smith , H. Laffon , G. H. Janssen , I. Cognard , G. Theureau , G. Desvignes , E. C. Ferrara , P. S. Ray

We present a multi-frequency study of eclipse properties of a transitional redback millisecond pulsar J1227$-$4853 discovered in 2014 with the GMRT. Emission from this pulsar is eclipsed at 607 MHz for about 37% of its orbit around the…

High Energy Astrophysical Phenomena · Physics 2020-07-21 Sanjay Kudale , Jayanta Roy , Bhaswati Bhattacharyya , Ben Stappers , Jayaram Chengalur

We compute and apply the minimum spanning tree (MST) of the binary millisecond pulsar population, and discuss aspects of the known phenomenology of these systems in this context. We find that the MST effectively separates different classes…

High Energy Astrophysical Phenomena · Physics 2024-12-18 C. R. García , G. Illiano , D. F. Torres , A. Papitto , F. Coti Zelati , D. de Martino , A. Patruno

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 Telescope. With the Green Bank Ultimate…

Eclipsing millisecond pulsars (MSPs) are a type of pulsar binaries with close orbits ($\lesssim1.0\,$d). They are important objects for studying the accretion history of neutron stars (NSs), pulsar winds, and the origin of isolated MSPs,…

Solar and Stellar Astrophysics · Physics 2025-05-23 Yunlang Guo , Bo Wang , Xiangdong Li , Dongdong Liu , Wenshi Tang

Using MeerKAT, we have discovered three new millisecond pulsars (MSPs) in the bulge globular cluster M62: M62H, M62I, and M62J. All three are in binary systems, which means all ten known pulsars in the cluster are in binaries. M62H has a…