Results 91 to 100 of about 862,547 (224)

The AO327 Drift Survey Catalog and Data Release of Pulsar Detections

The Astrophysical Journal Supplement Series
The AO327 drift survey for radio pulsars and transients used the Arecibo telescope from 2010 until its collapse in 2020. AO327 collected ∼3100 hr of data at 327 MHz with a time resolution of 82 μ s and a frequency resolution of 24 kHz.
J. S. Deneva, M. McLaughlin, T. E. E. Olszanski, E. F. Lewis, D. Pang, P. C. C. Freire, M. Bagchi, K. Stovall   +7 more
doaj   +1 more source

The FAST Galactic Plane Pulsar Snapshot Survey. VI. The Discovery of 473 New Pulsars [PDF]

Research in Astronomy and Astrophysics
The Five-hundred-meter Aperture Spherical radio Telescope (FAST) is the most sensitive telescope at the L-band (1.0–1.5 GHz) and has been used to carry out the FAST Galactic Plane Pulsar Snapshot (GPPS) survey in the last 5 yr.
Jinlin Han, Dejiang Zhou, Chen Wang, W. Su, Yisheng Yan, W. Jing, ZongLin Yang, Pengfei Wang, Tao Wang, Jun Xu, N. Cai, Jinghai Sun, Qingliang Yang, Renxin Xu, Hongguang Wang, X. You   +15 more
semanticscholar   +1 more source

A Hydrodynamic Bioreactor for High‐Yield Production of Extracellular Vesicles from Stem Cell Spheroids with Defined Cargo Profiling

Advanced Science, Volume 13, Issue 10, 18 February 2026.
This study harnesses hydrodynamic flows to generate, confine and stimulate stem cell spheroids, enabling the large‐scale production of extracellular vesicles (EVs). This innovative method not only streamlines spheroid formation and subsequent EV release in a single, integrated process, but also ensures the generation of EVs with enhanced biological ...
Solène Lenoir, Elliot Thouvenot, Giacomo Gropplero, Léonie Dec, Damarys Loew, Clotilde Théry, Jose E Perez, Claire Wilhelm   +7 more
wiley   +1 more source

Nature of Ultralong Period Radio Transients: Could They Be Strange Dwarf Pulsars?

The Astrophysical Journal
Ultralong period radio transients (ULPTs), with periods of thousands of seconds, challenge conventional pulsar models. We propose that these isolated sources are strange dwarf (SD) pulsars—compact objects with a strange quark matter core surrounded by a ...
Xia Zhou, Abdusattar Kurban, Wen-Tong Liu, Na Wang, Ya-Jing Yuan   +4 more
doaj   +1 more source

A FAN BEAM MODEL FOR RADIO PULSARS. I. OBSERVATIONAL EVIDENCE [PDF]

, 2014
We propose a novel beam model for radio pulsars based on the scenario that the broadband and coherent emission from secondary relativistic particles, as they move along a flux tube in a dipolar magnetic field, form a radially extended sub-beam with ...
Hong Wang, Feipeng Pi, Xiao-ping Zheng, Chunfang Deng, Sai-Qin Wen, F. Ye, K. Y. Guan, Yi Liu, Li Xu   +8 more
semanticscholar   +1 more source

The origin of radio pulsar polarization

Monthly Notices of the Royal Astronomical Society, 2017
Polarisation of radio pulsar profiles involves a number of poorly understood, intriguing phenomena, such as the existence of comparable amounts of orthogonal polarisation modes (OPMs), strong distortions of polarisation angle (PA) curves into shapes inconsistent with the rotating vector model (RVM), and the strong circular polarisation V which can be ...
openaire   +2 more sources

Multi‐scale maternal behavioral responses by white‐tailed deer to coyote predation risk

The Journal of Wildlife Management, Volume 90, Issue 1, January 2026.
In the piedmont region of the southeastern US, white‐tailed deer adjust maternal care strategies in response to variation in risk of encountering coyotes. In areas frequented by coyotes, adult female deer (i.e., does) increase their use of space, likely to avoid drawing coyotes to the location where a fawn is hidden.
Michael S. Muthersbaugh, Wesley W. Boone, Elizabeth A. Saldo, Alex J. Jensen, Charles Ruth, Jay Cantrell, John C. Kilgo, David S. Jachowski   +7 more
wiley   +1 more source

The Discovery of a 41 s Radio Pulsar PSR J0311+1402 with ASKAP

The Astrophysical Journal Letters
The emerging population of long-period radio transients (LPTs) shows both similarities and differences with normal pulsars. A key difference is that their radio emission is too bright to be powered solely by rotational energy.
Yuanming Wang, Pavan A. Uttarkar, Ryan M. Shannon, Yu Wing Joshua Lee, Dougal Dobie, Ziteng Wang, Keith W. Bannister, Manisha Caleb, Adam T. Deller, Marcin Glowacki, Joscha N. Jahns-Schindler, Tara Murphy, Reshma Anna-Thomas, N. D. R. Bhat, Xinping Deng, Vivek Gupta, Akhil Jaini, Clancy W. James, John Tuthill   +18 more
doaj   +1 more source

A Cosmic Census of Radio Pulsars with the SKA [PDF]

, 2014
The Square Kilometre Array (SKA) will make ground breaking discoveries in pulsar science. In this chapter we outline the SKA surveys for new pulsars, as well as how we will perform the necessary follow-up timing observations. The SKA's wide field-of-view,
E. Keane, B. Bhattacharyya, Michael Kramer, B. Stappers, S. Bates, M. Burgay, S. Chatterjee, D. Champion, R. Eatough, J. Hessels, G. Janssen, Kejia Lee, Kejia Lee, J. V. Leeuwen, J. Margueron, Micaela Oertel, A. Possenti, S. Ransom, G. Theureau, P. Torne   +19 more
semanticscholar   +1 more source

Cherenkov Telescope Array Observatory: Die Zukunft der Gammaastronomie

Physik in unserer Zeit, Volume 57, Issue 1, Page 10-18, January 2026.
Im Jahr 1989 hat das Wipple‐Observatorium die erste Quelle hochenergetischer Gammastrahlung entdeckt. 2002 waren dann sechs Quellen bekannt, 2024 schon mehr als 300. Und das ist immer noch lediglich die Spitze des Eisbergs in der jungen Geschichte der Gammaastronomie.
Daniela Hadasch, Daniel Mazin
wiley   +1 more source