Zobrazeno 1 - 10
of 102
pro vyhledávání: '"M. H. van Kerkwijk"'
Autor:
Bridget C. Andersen, Emmanuel Fonseca, J. W. McKee, B. W. Meyers, Jing Luo, C. M. Tan, I. H. Stairs, Victoria M. Kaspi, M. H. van Kerkwijk, Mohit Bhardwaj, P. J. Boyle, Kathryn Crowter, Paul B. Demorest, Fengqiu A. Dong, Deborah C. Good, Jane F. Kaczmarek, Calvin Leung, Kiyoshi W. Masui, Arun Naidu, Cherry Ng, Chitrang Patel, Aaron B. Pearlman, Ziggy Pleunis, Masoud Rafiei-Ravandi, Mubdi Rahman, Scott M. Ransom, Kendrick M. Smith, Shriharsh P. Tendulkar
Publikováno v:
The Astrophysical Journal, Vol 943, Iss 1, p 57 (2023)
Of the more than 3000 radio pulsars currently known, only ∼300 are in binary systems, and only five of these consist of young pulsars with massive nondegenerate companions. We present the discovery and initial timing, accomplished using the Canadia
Externí odkaz:
https://doaj.org/article/f974aff7635745dab9b955190080730e
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 519:121-135
Recently, several eclipsing millisecond pulsars have been shown to experience strong and apparent weak lensing from the outflow of their ionized companions. Lensing can be a powerful probe of the ionized plasma, with the strongest lenses potentially
Autor:
Bridget C. Andersen, Emmanuel Fonseca, J. W. McKee, B. W. Meyers, Jing Luo, C. M. Tan, I. H. Stairs, Victoria M. Kaspi, M. H. van Kerkwijk, Mohit Bhardwaj, P. J. Boyle, Kathryn Crowter, Paul B. Demorest, Fengqiu A. Dong, Deborah C. Good, Jane F. Kaczmarek, Calvin Leung, Kiyoshi W. Masui, Arun Naidu, Cherry Ng, Chitrang Patel, Aaron B. Pearlman, Ziggy Pleunis, Masoud Rafiei-Ravandi, Mubdi Rahman, Scott M. Ransom, Kendrick M. Smith, Shriharsh P. Tendulkar
Of the more than $3{,}000$ radio pulsars currently known, only ${\sim}300$ are in binary systems, and only five of these consist of young pulsars with massive non-degenerate companions. We present the discovery and initial timing, accomplished using
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cbbf23d47a349c646a9807aebd667c3b
http://arxiv.org/abs/2209.06895
http://arxiv.org/abs/2209.06895
Autor:
D. Simard, V. R. Marthi, K. Vanderlinde, Brendan M. Quine, C. Roberts, Yashwant Gupta, M. H. van Kerkwijk, Ue-Li Pen, Robert Main
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 506:5160-5169
We report on the simultaneous Giant Metrewave Radio Telescope (GMRT) and Algonquin Radio Observatory (ARO) observations at 550-750 MHz of the scintillation of PSR B1508+55, resulting in a $\sim$10,000-km baseline. This regime of measurement lies betw
Publikováno v:
Monthly Notices of the Royal Astronomical Society, 494, 4031-4042
Monthly Notices of the Royal Astronomical Society
Monthly Notices of the Royal Astronomical Society, 494, 3, pp. 4031-4042
Monthly Notices of the Royal Astronomical Society
Monthly Notices of the Royal Astronomical Society, 494, 3, pp. 4031-4042
Binaries harbouring millisecond pulsars enable a unique path to determine neutron star masses: radio pulsations reveal the motion of the neutron star, while that of the companion can be characterised through studies in the optical range. PSR J1012+53
Autor:
M R Kennedy, R P Breton, C J Clark, D Mata Sánchez, G Voisin, V S Dhillon, J P Halpern, T R Marsh, L Nieder, P S Ray, M H van Kerkwijk
Publikováno v:
Monthly Notices of the Royal Astronomical Society
Accurate measurements of the masses of neutron stars are necessary to test binary evolution models, and to constrain the neutron star equation of state. In pulsar binaries with no measurable post-Keplerian parameters, this requires an accurate estima
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::977cd7e030dce3bb980b9b659c455edb
https://hdl.handle.net/21.11116/0000-000A-194D-521.11116/0000-000A-01B7-621.11116/0000-000A-01B9-4
https://hdl.handle.net/21.11116/0000-000A-194D-521.11116/0000-000A-01B7-621.11116/0000-000A-01B9-4
How an otherwise inert carbon-oxygen white dwarf can be made to explode as a Type Ia supernova remains unknown. A promising test of theoretical models is to constrain the distribution of material that is left unburned, in particular of carbon. So far
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b1cd6b9720d0eb5c77797985230fd4d2
http://arxiv.org/abs/1902.01904
http://arxiv.org/abs/1902.01904
The delay time distribution of Type Ia supernovae (the time-dependent rate of supernovae resulting from a burst of star formation) has been measured using different techniques and in different environments. Here, we study in detail the distribution f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::341b06c3cc269e6531133f113729521b
PSR J0636+5128 is a millisecond pulsar in one of the most compact pulsar binaries known, with a 96\,min orbital period. The pulsar mass function suggests a very low-mass companion, similar to that seen in so-called "black widow" binaries. Unlike in m
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e167c6bc37882ceab89223aaca0beeb1
https://resolver.caltech.edu/CaltechAUTHORS:20180827-144724040
https://resolver.caltech.edu/CaltechAUTHORS:20180827-144724040
Autor:
M. H. van Kerkwijk, Suhail Dhawan, Stefan Taubenberger, A. Flörs, Kate Maguire, Bruno Leibundgut, Wolfgang Kerzendorf, Jason Spyromilio
We present near infrared (NIR) spectroscopy of the nearby supernova 2014J obtained $\sim$450 d after explosion. We detect the [Ni II] 1.939 $\mu$m line in the spectra indicating the presence of stable $^{58}$Ni in the ejecta. The stable nickel is not
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f90cb0006051db49c25844e415f51fae