Results 81 to 90 of about 200,534 (264)

Pulse profiles of millisecond pulsars [PDF]

International Astronomical Union Colloquium, 1996
We present a comparison between the average radio pulse profiles of millisecond pulsars (MSPs) in the field and in globular clusters. Our sample consists of 20 field MSPs and 25 cluster MSPs for which observations exist at 400 - 600 MHz. We find that 6 of the 20 field MSPs, or about 30%, have a comparable interpulse at a phase offset of 180 ±30 ...
Jayawardhana, Ray, Grindlay, Jonathan E.
openaire   +2 more sources

Low‐Thermal‐Budget Doping of 2D Materials in Ambient Air Exemplified by Synthesis of Boron‐Doped Reduced Graphene Oxide

Advanced Science, 2020
Graphene oxide (GO) doping and reduction allow for physicochemical property modification to suit practical application needs. Herein, the challenge of simultaneous low‐thermal‐budget heteroatom doping of GO and its reduction in ambient air is addressed ...
Jun‐Hwe Cha, Dong‐Ha Kim, Cheolmin Park, Seon‐Jin Choi, Ji‐Soo Jang, Sang Yoon Yang, Il‐Doo Kim, Sung‐Yool Choi   +7 more
doaj   +1 more source

Neutron Star Merger Remnants: Braking Indices, Gravitational Waves, and the Equation Of State

, 2019
The binary neutron star merger GW170817/GRB170817A confirmed that at least some neutron star mergers are the progenitors of short gamma-ray bursts. Many short gamma-ray bursts have long-term x-ray afterglows that have been interpreted in terms of post ...
Ashton, Greg, Lasky, Paul D., Sarin, Nikhil   +2 more
core   +1 more source

X-ray and $\gamma$-ray Studies of the Millisecond Pulsar and Possible X-ray Binary/Radio Pulsar Transition Object PSR J1723-2837 [PDF]

, 2013
We present X-ray observations of the "redback" eclipsing radio millisecond pulsar and candidate radio pulsar/X-ray binary transition object PSR J1723-2837.
Bogdanov, Slavko, Crawford III, Fronefield, Esposito, Paolo, Freire, Paulo, McLaughlin, Maura A., Possenti, Andrea   +5 more
core   +3 more sources

An ultraluminous nascent millisecond pulsar [PDF]

Monthly Notices of the Royal Astronomical Society: Letters, 2015
Abstract If the ultraluminous source (ULX) M82 X-2 sustains its measured spin-up value of $\dot{\nu }= 10^{-10}\,{\rm s^{-2}}$, it will become a millisecond pulsar in less than 105 yr. The observed (isotropic) luminosity of 1040 erg s−1 also supports the notion that the neutron star will spin up to a millisecond period upon accreting ...
Kluzniak, W., Lasota, J. -P.
openaire   +3 more sources

Timing of Millisecond Pulsars in NGC 6752: Evidence for a High Mass-to-Light Ratio in the Cluster Core [PDF]

, 2002
Using pulse timing observations we have obtained precise parameters, including positions with about 20 mas accuracy, of five millisecond pulsars in NGC 6752.
A. G. Lyne, A. Possenti, Becker W., F. Camilo, Ferraro F. R., J. Sarkissian, Kuijken K., L. Fici, N. D’Amico, R. N. Manchester, Shklovskii I. S., Standish E. M.   +11 more
core   +2 more sources

Single-molecule imaging of non-equilibrium molecular ensembles on the millisecond timescale

Nature Methods, 2016
Single-molecule fluorescence microscopy is uniquely suited for detecting transient molecular recognition events, yet achieving the time resolution and statistics needed to realize this potential has proven challenging.
M. Juette, Daniel S. Terry, Michael R. Wasserman, R. Altman, Zhou Zhou, Hong Zhao, S. Blanchard   +6 more
semanticscholar   +1 more source

Giant Pulses in Millisecond Pulsars [PDF]

Symposium - International Astronomical Union, 2004
Giant pulses (GPs), occasional individual pulses with an intensity 100 times the average intensity, have been detected in four pulsars to date. Their origin is not well understood, but studies suggest a connection between the strength of magnetic field at the light cylinder Blc and the existence of GPs. Here, we report on detection of significant Large
Joshi, B. C., Kramer, M., Lyne, A. G., Mclaughlin, M., Stairs, I. H.   +4 more
openaire   +2 more sources

Probing the millisecond pulsar origin of the γ-ray excess in the Galactic centre with LISA

Astronomy & Astrophysics
The gigaelectronvolt γ-ray excess observed towards the Galactic centre remains unexplained. While dark matter annihilation has long been considered a leading explanation, an alternative scenario involving a large population of millisecond pulsars remains
Korol Valeriya, Igoshev Andrei
doaj   +1 more source

Discovery of an Isolated Compact Object at High Galactic Latitude

, 2007
We report discovery of a compact object at high Galactic latitude. The object was initially identified as a ROSAT All-Sky Survey Bright Source Catalog X-ray source, 1RXS J141256.0+792204, statistically likely to possess a high X-ray to optical flux ratio.
Fox, D. B., Rutledge, R. E., Shevchuk, A. H.   +2 more
core   +1 more source