Results 31 to 40 of about 7,206,331 (163)
Return of the Big Glitcher: <i>NICER</i> timing and glitches of PSR J0537-6910. [PDF]
Mon Not R Astron Soc, 2020 PSR J0537−6910, also known as the Big Glitcher, is the most prolific glitching pulsar known, and its spin-induced pulsations are only detectable in X-ray.
Ho WCG +9 more
europepmc +2 more sources
Anti-glitches in the ultraluminous accreting pulsar NGC 300 ULX-1 observed with NICER
, 2019 We present evidence for three spin-down glitches (or 'anti-glitches') in the ultraluminous accreting X-ray pulsar NGC 300 ULX-1 in timing observations made with the Neutron Star Interior Composition Explorer (NICER).
Malacaria, Christian +16 more
core +2 more sources
All at Once: Transient Pulsations, Spin-down, and a Glitch from the Pulsating Ultraluminous X-Ray Source M82 X-2 [PDF]
The Astrophysical Journal, 2020 Abstract The first pulsating ultraluminous X-ray source (PULX) to be identified is M82 X-2. After the discovery in 2014, NuSTAR observed the M82 field 15 times throughout 2015 and 2016. In this paper, we report the results of pulsation searches in all of these data sets and find only one new detection.
Matteo Bachetti +11 more
openaire +6 more sources
Linking the X-ray timing and spectral properties of the glitching AXP 1RXS J170849-400910 [PDF]
Astronomy & Astrophysics, 2007 Submitted to A&A, 4 pages; results presented at the INT meeting "The Neutron Star Crust and Surface: Observations and Models" on June 27; referee comments ...
Israel, G. L. +5 more
openaire +2 more sources
X-Ray Observation of the 2017 November Glitch in the Crab Pulsar
The Astrophysical Journal, 2018 Abstract We have observed a glitch in the Crab pulsar (PSR B0531+21) in the 0.5–10 keV X-ray band with the X-Ray Pulsar Navigation-I (XPNAV-1) satellite. This glitch occurred around 2017 November 8. Observations at radio frequency by the Jodrell Bank observatory and the Lovell telescope have confirmed it to be the largest ever observed ...
Xinyuan Zhang +4 more
openaire +1 more source
Soft X-ray pulses from neutron star glitches
The Astrophysical Journal, 1991 Glitches release energy in the interiors of neutron stars. In some models of glitches, such as those involving the sudden transfer of angular momentum to the stellar crust from a more rapidly rotating neutron superfluid, the energy liberated is large enough (∼10 38 −10 43 ergs) to noticeably raise the temperature of the stellar surface.
Kenneth A. van Riper +2 more
openaire +1 more source
Quantitative chemical analysis of pickling solutions by x-ray fluorescence spectrometry
, 2007 A quantitative analytical method of chlorine and iron in hydrochloric pickling solutions by x-ray spectrometry in atmospheric He mode is proposed. This work is concerned with the replacement of the wet chemical analyses of pickling solutions with rapid ...
Na, HG +7 more
core +1 more source
A low-cost X-ray-transparent experimental cell for synchrotron-based X-ray microtomography studies under geological reservoir conditions [PDF]
, 2014 A new modular X-ray-transparent experimental cell enables tomographic investigations of fluid rock interaction under natural reservoir conditions (confining pressure up to 20 MPa, pore fluid pressure up to 15 MPa, temperature ranging from 296 to 473 K ...
Zhu, Wenlu +13 more
core +1 more source
Small Methods, EarlyView.Using amplitude modulated (AM) excitation, reversible and irreversible contributions to permittivity can be extracted separately. This AM signal can be used with other large signal excitation (here pulses), allowing to track domain structure evolution in operating ferroelectric devices at high speed and revealing transient evolution.
Kevin Nadaud +6 more
wiley +1 more source
Glitches in the X-ray pulsar 1E 2259+586
The Astrophysical Journal, 1994 Starquakes are considered for fast-rotating magnetic white dwarfs. The X-ray pulsar 1E 2259 + 586 may be such a white dwarf. It is shown that in this case starquakes may be responsible for the decrease of the mean spin-down rate which was observed for 1E 2259 + 586 between 1987 and 1990.
openaire +2 more sources