Results 51 to 60 of about 478 (181)

Hidden slow pulsars in binaries

The Astrophysical Journal, 1993
The recent discovery of the binary containing the slow pulsar PSR 1718-19 orbiting around a low-mass companion star adds new light on the characteristics of binary pulsars. The properties of the radio eclipses of PSR 1718-19 are the most striking observational characteristics of this system.
Marco Tavani, Leigh Brookshaw
openaire   +1 more source

Green Bank Telescope Discovery of the Redback Binary Millisecond Pulsar PSR J0212+5321

The Astrophysical Journal, 2023
We report the discovery of a 2.11 ms binary millisecond pulsar during a targeted search of the redback optical candidate coincident with the γ -ray source 3FGL J0212.5+5320 using the Robert C.
Karen I. Perez, Slavko Bogdanov, Jules P. Halpern, Vishal Gajjar   +3 more
doaj   +1 more source

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, Mariam Alzaabi, Shina Sasi, Saranya Krishnan, Zarreen Badar, Ling Li, Martin Kottackal, Khaled M. A. Amiri   +7 more
wiley   +1 more source

Pulsars and Close Binary Systems [PDF]

Symposium - International Astronomical Union, 1971
It is first considered what must happen if pulsars (i.e. neutron stars) are formed in close binary systems (CBS), and whether the resulting orbital motion and mass transfer should be observable. As this set of alternatives seems unlikely, there follow suggestions of how one might prevent the formation of neutron stars in close binaries.
Virginia Trimble, Martin Rees
openaire   +1 more source

Searching for Pulsars in Globular Clusters with the Fast-folding Algorithm and a New Pulsar Discovered in M13

The Astrophysical Journal
We employed the fast-folding algorithm on L -band globular cluster (GC) observations taken with the Five-hundred-meter Aperture Spherical radio Telescope to search for new pulsars, especially those with a long rotational period.
Yaowei Li, Lin Wang, Lei Qian, Liyun Zhang, Yujie Chen, Dejiang Yin, Baoda Li, Yinfeng Dai, Ralph P. Eatough, Wenze Li, Dongyue Jiang, Xingnan Zhang, Minghui Li, Yujie Lian, Yuxiao Wu, Tong Liu, Kuo Liu, Zhichen Pan   +17 more
doaj   +1 more source

Measuring the Lense–Thirring Orbital Precession and the Neutron Star Moment of Inertia with Pulsars

Universe
Neutron stars (NSs) are compact objects that host the densest forms of matter in the observable universe, providing unique opportunities to study the behaviour of matter at extreme densities.
Huanchen Hu, Paulo C. C. Freire
doaj   +1 more source

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

Follow-up Investigation of 11 Pulsars Discovered in the Commensal Radio Astronomy FAST Survey

The Astrophysical Journal
In this paper, we study 11 pulsars that were discovered by the Five-hundred-meter Aperture Spherical radio Telescope (FAST) in the Commensal Radio Astronomy FAST Survey.
K. Yang, L. Li, J. P. Yuan, N. Wang, D. Li, P. Wang, C. C. Miao, W. W. Zhu, M. Y. Xue, W. M. Yan, J. B. Wang, R. Yuen, G. L. Lü, C. H. Zhu, J. M. Yao, Q. D. Wu, S. Q. Wang, S. N. Sun, F. F. Kou, D. Zhao, Z. Wang, J. Xu, C. Sun, Y. Feng, Z. J. Liu, X. L. Miao, L. Q. Meng, C. H. Niu, J. R. Niu, L. Qian, X. Y. Xie, Y. F. Xiao, Y. L. Yue, S. P. You, S. J. Dang, X. H. Yu, R. S. Zhao, X. Zhou, L. Zhang, J. F. Wu, C. J. Wang, Y. B. Wang, Z. Y. Gan   +42 more
doaj   +1 more source

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

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