Results 91 to 100 of about 804,359 (275)
, 2004 PhD Thesis, Utrecht University 2004, with a summary in Dutch. 108 pages, 55 low-resolution figures.
openaire +2 more sources
Astronomische Nachrichten, Volume 346, Issue 3-4, March-May 2025.ABSTRACT The discovery of radio‐quiet, x‐ray thermally emitting isolated neutron stars (XINSs) in the ROSAT All‐Sky Survey revealed a previously overlooked component of the neutron star population. Advancements in x‐ray instrumentation and the availability of deep, wide‐area optical surveys now enable us to explore XINSs at fainter x‐ray fluxes and ...
Adriana Mancini Pires +11 more
wiley +1 more source
CONSTRAINING THE EVOLUTIONARY FATE OF CENTRAL COMPACT OBJECTS: “OLD” RADIO PULSARS IN SUPERNOVA REMNANTS [PDF]
, 2014 Central compact objects (CCOs) constitute a population of radio-quiet, slowly spinning (⩾100 ms) young neutron stars with anomalously high thermal X-ray luminosities.
S. Bogdanov, C. Ng, V. Kaspi
semanticscholar +1 more source
Pulsar spectra of radio emission [PDF]
Astronomy and Astrophysics Supplement Series, 2000 We have collected pulsar flux density observations and compiled spectra of 281 objects. The database of Lorimer et al. (\cite{lorimer}) has been extended to frequencies higher than 1.4 GHz and lower than 300 MHz. Our results show that above 100 MHz the spectra of the majority of pulsars can be described by a simple power law with average value of ...
Richard Wielebinski +4 more
openaire +4 more sources
Health Science Reports, Volume 8, Issue 3, March 2025.ABSTRACT Background and Aims Pediatric infectious diseases pose a global health challenge, causing 13.7 million deaths in 2019 and three million in children under four. Early recognition and management are vital, and challenges in effectively addressing this persist, particularly in resource‐limited areas. Digital health tools, such as telemedicine and
Alen Sam Saji +7 more
wiley +1 more source
Unveiling the Emission Properties of Three Long-period Pulsars Using FAST
The Astrophysical Journal Supplement SeriesWe detail the emission behaviors of three long-period pulsars detected using the Five-hundred-meter Aperture Spherical radio Telescope (FAST) during the Commensal Radio Astronomy FAST survey.
H. M. Tedila +11 more
doaj +1 more source
ELEMENTARY WIDEBAND TIMING OF RADIO PULSARS [PDF]
, 2014 We present an algorithm for the simultaneous measurement of a pulse time-of-arrival (TOA) and dispersion measure (DM) from folded wideband pulsar data. We extend the prescription from Taylor's 1992 work to accommodate a general two-dimensional template ...
T. Pennucci, P. Demorest, S. Ransom
semanticscholar +1 more source
The geometry of a radio pulsar beam [PDF]
Monthly Notices of the Royal Astronomical Society: Letters, 2017 Abstract Taxonomy of radio pulsar profiles is mostly based on a system of Ptolemaic artificiality, consisting of separated rings and a core, arbitrarily located at disparate altitudes in the magnetosphere. Diversity of observed profile shapes clearly exceeds the interpretive capability of such conal model.
openaire +3 more sources
The radio nebula surrounding the Vela pulsar [PDF]
Monthly Notices of the Royal Astronomical Society, 2003 We have discovered that the radio nebula surrounding the Vela pulsar covers a much wider extent than previously reported, with two lobes to the North and South of the pulsar. Indications of this object have been reported previously, but its symmetric morphology around the pulsar and other details had not been identified as they were hidden due to poor ...
Avinash A. Deshpande +5 more
openaire +4 more sources
Recent Developments in Degenerate Higher Order Scalar Tensor Theories
Annalen der Physik, Volume 537, Issue 2, February 2025.Degenerate Higher Order Scalar Tensor theories are reviewed, together with their applications in cosmology and astrophysics. These theories have been applied to build models of the early universe, in the description of the late‐time cosmic acceleration, as well as in astrophysics, including black hole physics. They have the potential to provide answers
Andrei Lazanu
wiley +1 more source