Results 91 to 100 of about 28,625 (211)
Infrared observations of the candidate double neutron star system PSR J1811-1736 [PDF]
, 2012 PSR J1811-1736 (P=104 ms) is an old (~1.89 Gyrs) binary pulsar (P_orb=18.8 d) in a highly eccentric orbit (e=0.828) with an unidentified companion. Interestingly enough, the pulsar timing solution yields an estimated companion mass 0.93 M_{\odot}
Corongiu, A. +3 more
core +2 more sources
Genetic modification of Water spinach (Ipomoea aquatica), a genoprotective perennial leafy green
Physiologia Plantarum, Volume 177, Issue 3, May/June 2025.Abstract Improvement of leafy greens, especially perennials with year‐round harvesting, is binding to the food security drive. “Food for All” by WHO demands the improvement of regional crops due to the agroclimatic specificity to ensure regional food security.
Fayas Thayale Purayil +7 more
wiley +1 more source
Tidal Interactions in Pulsar Binaries [PDF]
International Astronomical Union Colloquium, 1996 Abstract The value of using pulse timing to measure orbital variations in eccentric pulsar binaries which are close enough at periastron to interact tidally is discussed. We briefly review a model for dynamical tidal evolution which shows that chaotic orbital evolution is possible, and list several applications to real systems.
openaire +1 more source
Apparently Ultralong Period Radio Signals from Self-lensed Pulsar–Black Hole Binaries
The Astrophysical JournalPulsar–black hole (BH) close binary systems, which have not been found yet, are unique laboratories for testing theories of gravity and understanding the formation channels of gravitational-wave sources.
Xinxu Xiao, Rong-Feng Shen
doaj +1 more source
Binary-pulsar tests of strong-field gravity and gravitational radiation damping
, 2004 This talk reviews the constraints imposed by binary-pulsar data on gravity theories, focusing on ``tensor-scalar'' ones which are the best motivated alternatives to general relativity.
Esposito-Farese, Gilles
core +2 more sources
Dark Energy From the Gravitational Wave Background With Scalar Field Dark Matter
Astronomische Nachrichten, Volume 346, Issue 3-4, March-May 2025.ABSTRACT Recent observational results, such as those from pulsar timing arrays (PTA), suggest a low‐frequency Gravitational Wave Background (GWB) permeates our universe. This opens the possibility that gravitational waves could span a broader spectrum, potentially impacting cosmological scales.
Edwin L. Pérez‐Ochoa, Tonatiuh Matos
wiley +1 more source
Orbital Trends of Binary Pulsars [PDF]
Symposium - International Astronomical Union, 2004 We try to understand the eccentricity of high-mass binary pulsars using some methods of statistical mechanics.
openaire +1 more source
Radiation Dosimetry of Binary Pulsars [PDF]
The Astrophysical Journal, 1996 Companion stars exposed to high energy radiation from a primary neutron star or accreting black hole can experience significant spallation of their heavy elements, so that their atmospheres would be extremely rich in lithium, beryllium, and especially boron. In this paper we note that the detection or non-detection of these elements, and their relative
Eichler, David, Nath, Biman B.
openaire +2 more sources
Optical and Infrared Lightcurve Modeling of the Gamma-ray Millisecond Pulsar 2FGL J2339.6-0532 [PDF]
Journal of Astronomy and Space Sciences, 2013 We report the detection of a quasi-sinusoidally modulated optical flux with a period of 4.6343 hour in the optical and infrared band of the Fermi source 2FGL J2339.7-0531.
Tzu-Ching Yen +5 more
doaj +1 more source
LOFAR discovery of the fastest-spinning millisecond pulsar in the Galactic field [PDF]
, 2017 We report the discovery of PSR J0952$-$0607, a 707-Hz binary millisecond pulsar which is now the fastest-spinning neutron star known in the Galactic field (i.e., outside of a globular cluster).
Bassa, C. G. +17 more
core +2 more sources