M
M. H. van Kerkwijk
Researcher at University of Toronto
Publications - 192
Citations - 13951
M. H. van Kerkwijk is an academic researcher from University of Toronto. The author has contributed to research in topics: Neutron star & Pulsar. The author has an hindex of 52, co-authored 183 publications receiving 11762 citations. Previous affiliations of M. H. van Kerkwijk include Max Planck Society & California Institute of Technology.
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Journal ArticleDOI
Evidence for a Massive Neutron Star from a Radial-Velocity Study of the Companion to the Black Widow Pulsar PSR B1957+20
TL;DR: In this paper, it was shown that the black widow pulsar B1957+20 has a high mass and observed radial-velocity amplitude of K 2 =353+/-4 km/s and a mass ratio q =M_PSR/M 2 =69.2+/-0.8.
Journal ArticleDOI
The relativistic pulsar-white dwarf binary PSR J1738+0333 I. Mass determination and evolutionary history
John Antoniadis,M. H. van Kerkwijk,D. Koester,Paulo C. C. Freire,Norbert Wex,Thomas M. Tauris,Michael Kramer,Michael Kramer,Cees Bassa +8 more
TL;DR: In this article, a spectroscopic and photometric study of the white dwarf companion and infer its radial velocity curve, eective temperature, surface gravity and luminosity are presented, and it is shown that the white dwarfs has properties consistent with those of low-mass white dwarffs with thick hydrogen envelopes, and use the corresponding mass-radius relation to infer its mass; MWD = 0:181 + 0:007 0:005 M.
A Millisecond Pulsar in a Stellar Triple System
Scott M. Ransom,Ingrid H. Stairs,Anne M. Archibald,Anne M. Archibald,Jason W. T. Hessels,Jason W. T. Hessels,David L. Kaplan,David L. Kaplan,M. H. van Kerkwijk,Jason Boyles,Jason Boyles,Adam Deller,Shami Chatterjee,A. Schechtman-Rook,Aaron Berndsen,Ryan S. Lynch,Duncan R. Lorimer,C. Karako-Argaman,Victoria M. Kaspi,V. I. Kondratiev,V. I. Kondratiev,Maura McLaughlin,J. van Leeuwen,J. van Leeuwen,R. Rosen,R. Rosen,Mallory S. E. Roberts,Kevin Stovall,Kevin Stovall +28 more
TL;DR: In this article, a millisecond pulsar, a white dwarf, and a planetary-mass object in an orbit of a few decades was observed in a hierarchical triplesystem with two other stars.
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The mass of the neutron star in Vela X-1
TL;DR: In this paper, the radial velocities of HD 77581, the B-supergiant companion of the X-ray pulsar Vela X-1, were measured using high-resolution optical spectra obtained in a nine-month campaign.
Journal ArticleDOI
The Masses of the Millisecond Pulsar J1012+5307 and Its White Dwarf Companion
TL;DR: In this paper, the mass of the white dwarf companion of the millisecond radio pulsar PSR J1012+5307 was determined using the Hamada-Salpeter mass-radius relation for helium white dwarfs.