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Observation of the γ-ray emission from W43 with LHAASO 期刊论文 OAI收割
SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY, 2024, 卷号: 68, 期号: 7
作者: Cao, Zhen; Aharonian, F.; Axikegu; Bai, Y. X.; Bao, Y. W.

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收藏 | 浏览/下载：9/0 | 提交时间：2025/02/26

gamma-ray source cosmic rays star formation region

Locating a gamma-ray source using cuboid scintillators and the KNN algorithm 期刊论文 OAI收割
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2021, 卷号: 993
作者: Du, Te; Zhao, Zijia; Zhu, Qingjun; Tian, Lichao

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收藏 | 浏览/下载：21/0 | 提交时间：2021/04/26

gamma-ray Source location Scintillator Detector array KNN algorithm

Constraining the X-Ray-Infrared Spectral Index of Second-timescale Flares from SGR 1935+2154 with Palomar Gattini-IR 期刊论文 OAI收割
The Astrophysical Journal, 2020, 卷号: 901, 页码: L7
作者: HXMT

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收藏 | 浏览/下载：22/0 | 提交时间：2022/02/08

Radio transient sources Magnetars Soft gamma-ray repeaters 2008 992 1471 Astrophysics - High Energy Astrophysical Phenomena Astrophysics - Instrumentation and Methods for Astrophysics Abstract: The Galactic magnetar SGR 1935+2154 has been reported to produce the first example of a bright millisecond-duration radio burst (FRB 200428) similar to the cosmological population of fast radio bursts (FRBs). The detection of a coincident bright X-ray burst represents the first observed multiwavelength counterpart of an FRB. However, the search for similar emission at optical wavelengths has been hampered by the high inferred extinction on the line of sight. Here, we present results from the first search for second-timescale emission from the source at near-infrared (NIR) wavelengths using the Palomar Gattini-IR observing system in the J band, enabled by a novel detector readout mode that allows short exposure times of ?0.84 s with 99.9% observing efficiency. With a total observing time of ?12 hr (?47,728 images) during its 2020 outburst, we place median 3Ҡlimits on the second-timescale NIR fluence of ?18 Jy ms (13.1 AB mag). The corresponding extinction-corrected limit is ?125 Jy ms for an estimated extinction of A_J = 2.0 mag. Our observations were sensitive enough to easily detect an NIR counterpart of FRB 200428 if the NIR emission falls on the same power law as observed across its radio to X-ray spectrum. We report nondetection limits from epochs of four simultaneous X-ray bursts detected by the Insight-HXMT and NuSTAR telescopes during our observations. These limits provide the most stringent constraints to date on fluence of flares at 10¹⁴ Hz, and constrain the fluence ratio of the NIR emission to coincident X-ray bursts to R_NIR ? 0.025 (fluence index ?0.35).

Identification of candidate millisecond pulsars from Fermi LAT observations 期刊论文 OAI收割
RESEARCH IN ASTRONOMY AND ASTROPHYSICS, 2016, 卷号: 16, 期号: 6
作者: Dai XueJie; Wang ZhongXiang; Vadakkumthani Jithesh; Xing Yi

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收藏 | 浏览/下载：11/0 | 提交时间：2021/12/06

LARGE-AREA TELESCOPE ECLIPSING BINARY SOURCE CATALOG RADIO PULSARS X-RAY STATE stars: pulsars stars: binaries gamma rays: stars

The uniform K distribution of the mare deposits in the Orientale Basin: Insights from Chang'E-2 gamma-ray spectrometer 期刊论文 OAI收割
EARTH AND PLANETARY SCIENCE LETTERS, 2015, 卷号: 418, 页码: 172-180
作者: Zhu, Meng-Hua; Chang, Jin; Xie, Minggang; Fritz, Joerg; Fernandes, Vera A.

收藏 | 浏览/下载：29/0 | 提交时间：2015/12/03

Moon Mare Orientale radioactive elements gamma-ray spectrometer homogeneous melt source

Study on response function model for γ-ray scintillation detector 期刊论文 OAI收割
ATOMIC ENERGY SCIENCE AND TECHNOLOGY, 2015, 卷号: 49, 期号: 8, 页码: 1354-1358
作者: Li Z(李哲); Zhang YW(张译文); Sun SF(孙世峰); Wang BY(王宝义); Wei L(魏龙)

收藏 | 浏览/下载：59/0 | 提交时间：2016/04/18

Detector response Gamma ray spectra Gamma-ray energy Interaction mechanisms Non-linear parameters Radiation source Response function models Weighted least squares

Status of the large high altitude air shower observatory project 期刊论文 OAI收割
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2012, 卷号: 692, 页码: 77-82
作者: LHAASO Collaboration

收藏 | 浏览/下载：28/0 | 提交时间：2016/04/08

Galactic cosmic ray origin Gamma ray source Cosmic ray composition Complex detector array

The argo-ybj experiment progresses and future extension 期刊论文 iSwitch采集
International journal of modern physics d, 2011, 卷号: 20, 期号: 10, 页码: 1713-1721
作者: Cao, Zhen

收藏 | 浏览/下载：20/0 | 提交时间：2019/04/23

Gamma ray source Cosmic ray origin Detector array

SDSS spectroscopy for blazars in the Fermi LAT bright AGN sample 期刊论文 OAI收割
RESEARCH IN ASTRONOMY AND ASTROPHYSICS, 2009, 卷号: 9, 期号: 11, 页码: 1192
作者: Chen ZhaoYu; Gu MinFeng; Fan ZhongHui; Cao XinWu

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收藏 | 浏览/下载：14/0 | 提交时间：2021/12/06

ACTIVE GALACTIC NUCLEI BL-LACERTAE OBJECTS BLACK-HOLE MASS EMISSION-LINE PROPERTIES DIGITAL SKY SURVEY RAY LOUD BLAZARS OBSERVATIONAL APPEARANCE STAR-FORMATION RADIO QUASARS SOURCE LIST galaxies: active galaxies: nuclei gamma rays: observations quasars: emission lines BL Lacertae objects: general

Study on the reaction rate of key reaction C-12(alpha, gamma)O-16 in astrophysics base on Shanghai laser electron gamma source 期刊论文 OAI收割
HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS-CHINESE EDITION, 2006, 卷号: 30, 页码: 252
Xu, Y（徐毅）; Xu, W（徐望）; Ma, YG（马余刚）; Cai, XZ（蔡翔舟）; Chen, JG（陈金根）; Gu, JH（顾嘉辉）; Guo, W（郭威）; Pan, QY（潘强岩）; Shen, WQ（沈文庆）; Wang, CB（王呈斌）; Wang, HW; Xu, JQ; Yuan, RY

收藏 | 浏览/下载：23/0 | 提交时间：2012/05/23

C-12(alpha gamma) O-16 reaction rate gamma ray source