Zobrazeno 1 - 10
of 165 647
pro vyhledávání: '"Point sources"'
Autor:
Gutiérrez-Soto, L. A., de Oliveira, R. Lopes, Akras, S., Gonçalves, D. R., Lomelí-Núñez, L. F., de Oliveira, C. Mendes, Telles, E., Alvarez-Candal, A., Fernandes, M. Borges, Daflon, S., Lopes, C. E. Ferreira, Grossi, M., Hazarika, D., Humire, P. K., Lima-Dias, C., Lopes, A. R., Castellón, J. L. Nilo, Panda, S., Kanaan, A., Ribeiro, T., Schoenell, W.
Context. We use the Southern Photometric Local Universe Survey (S-PLUS) Fourth Data Release (DR4) to identify and classify H$\alpha$-excess point sources in the Southern Sky, combining photometric data from 12 S-PLUS filters with machine learning to
Externí odkaz:
http://arxiv.org/abs/2501.16530
We address the estimation problem of the separation of two arbitrarily close incoherent point sources from the quantum Bayesian point of view, i.e., when a prior probability distribution function (PDF) on the separation is available. For the non-disp
Externí odkaz:
http://arxiv.org/abs/2412.05245
Flares produced by certain classes of astrophysical objects may be sources of some ultra-high-energy particles, which, if they are photons, would group into clusters of events correlated in space and time. Identification of such clustering in cosmic-
Externí odkaz:
http://arxiv.org/abs/2412.13804
Publikováno v:
MNRAS 534 (2024) 1317
Contribution of resolved and unresolved extragalactic point sources to the low-frequency sky spectrum is a potentially non-negligible part of the astrophysical foregrounds for cosmic dawn 21-cm experiments. The clustering of such point sources on the
Externí odkaz:
http://arxiv.org/abs/2406.17031
Autor:
Jeong, Minjin
In 2013, the IceCube Collaboration reported the first observation of an astrophysical neutrino flux, with energies extending up to the PeV-scale. Over the last decade, this flux has been characterized by measurements in multiple detection channels th
Externí odkaz:
http://arxiv.org/abs/2407.16371
Autor:
Li, Junyan, Pang, Shengshi
Publikováno v:
Phys. Rev. A 110, 042620(2024)
Abstract Superresolution has been demonstrated to overcome the limitation of the Rayleigh's criterion and achieve significant improvement of the precision in resolving the separation of two incoherent optical point sources. However, in recent years,
Externí odkaz:
http://arxiv.org/abs/2403.13752
Autor:
Sarrazin, Fanny J.1,2 (AUTHOR) fanny.sarrazin@inrae.fr, Attinger, Sabine2,3 (AUTHOR), Kumar, Rohini2 (AUTHOR)
Publikováno v:
Earth System Science Data. 2024, Vol. 16 Issue 10, p4673-4708. 36p.
We present a systematic search for extraplanar X-ray point sources around 19 late-type, highly inclined disk galaxies residing in the Virgo cluster, based on archival Chandra observations reaching a source detection sensitivity of $L\rm(0.5- 8~keV)\s
Externí odkaz:
http://arxiv.org/abs/2404.15057
Autor:
Sharif, Dilara I1 dilara.sharif@gmail.mail.com, Amin, Forsan1, Hasib Mehbub, Md.1, Ratul, Rakibul Islam1
Publikováno v:
Journal of Water & Health. Dec2024, Vol. 22 Issue 12, p2358-2369. 12p.
Autor:
Kim, Horim a, b, 1, Kim, Keun Taek a, 1, Jeong, Sangjae c, ⁎, Lee, Young Su d, Zhao, Xin a, Kim, Jae Young a, ⁎⁎
Publikováno v:
In Atmospheric Environment 1 February 2025 342