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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：24/0 | 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).

The Belle II Physics Book 期刊论文 OAI收割
PROGRESS OF THEORETICAL AND EXPERIMENTAL PHYSICS, 2019, 期号: 12, 页码: 123C01
作者: Kou, E.; Urquijo, P.; Altmannshofer, W.; Beaujean, F.; Bell, G.

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收藏 | 浏览/下载：56/0 | 提交时间：2020/06/16

NONLEPTONIC-B-DECAYS X-S-GAMMA MINIMAL FLAVOR VIOLATION FINAL-STATE INTERACTIONS PION FORM-FACTOR FORWARD-BACKWARD ASYMMETRY HEAVY-QUARKONIUM SPECTRUM LEFT-RIGHT SYMMETRY TO-LEADING-ORDER FLUX-TUBE MODEL

Instrument performance and simulation verification of the polar detector 期刊论文 iSwitch采集
Nuclear instruments & methods in physics research section a-accelerators spectrometers detectors and associated equipment, 2017, 卷号: 872, 页码: 28-40
作者: Kole, M.; Li, Z. H.; Produit, N.; Tymieniecka, T.; Zhang, J.

收藏 | 浏览/下载：59/0 | 提交时间：2019/04/23

Hard x-rays Gamma-ray bursts Polarization Calibration s Imulation Geant4

Instrument performance and simulation verification of the POLAR detector 期刊论文 OAI收割
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2017, 卷号: 872, 页码: 28-40
作者: Zhang, J; Kole, M; Li ZH(李正恒); Zhang J(张娟); Bao TW(鲍天威)

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收藏 | 浏览/下载：62/0 | 提交时间：2019/08/27

Hard X-rays Gamma-Ray Bursts Polarization Calibration S imulation Geant4

Radio to gamma-ray variability study of blazar S5 0716+714 期刊论文 OAI收割
ASTRONOMY & ASTROPHYSICS, 2013, 卷号: 552, 页码: A11
作者: Rani, B.; Krichbaum, T. P.; Fuhrmann, L.; Boettcher, M.; Lott, B.

收藏 | 浏览/下载：52/0 | 提交时间：2015/05/28

galaxies: active BL Lacertae objects: individual: S5 0716+714 gamma rays: galaxies X-rays: galaxies radio continuum: galaxies

CP violation in B-d,B-s -> l(+)l(-) in model III two Higgs doublet model 期刊论文 OAI收割
PHYSICAL REVIEW D, 2003, 卷号: 67, 期号: 9, 页码: -
作者: Dai, YB; Huang, CS; Li, JT; Li, WJ; Dai, YB , Acad Sinica, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China.

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收藏 | 浏览/下载：27/0 | 提交时间：2012/08/29

Changing Neutral Currents Large Tan-beta 2-higgs-doublet Model Lepton Polarization Susy Models Decays B->x(s)Tau(+)Tau(-) Supersymmetry B->s-gamma Standard

B-s,B-d -> mu(+)mu(-) in technicolor model with scalars 期刊论文 OAI收割
PHYSICS LETTERS B, 2002, 卷号: 546, 期号: 40972, 页码: 221-227
作者: Xiong, ZH; Yang, JM; Xiong, ZH , CCAST, World Lab, POB 8730, Beijing 100080, Peoples R China.

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收藏 | 浏览/下载：25/0 | 提交时间：2012/08/29

Anomalous Magnetic-moment Standard Model Radiative-corrections Meson Decay B->s-gamma Doublet B->x(s)l(+)l(-) Supersymmetry Constraints Breaking

Rare decays B -> Xs tau(+)tau(-) and Bs -> tau(+)tau(-)gamma in technicolor with scalars 期刊论文 OAI收割
NUCLEAR PHYSICS B, 2001, 卷号: 602, 期号: 1-2, 页码: #REF!
作者: Xiong ZH(熊兆华); Xiong, ZH; Yang, JM

收藏 | 浏览/下载：29/0 | 提交时间：2016/04/13

technicolor with scalars decay B -> X-s tau(+)tau(-) decay B-s -> tau(+)tau(-)gamma forward-backward asymmetry

Complete analysis of the next-to-leading order supersymmetric QCD corrections to B-0-(B)over-bar(0) mixing 期刊论文 OAI收割
PHYSICAL REVIEW D, 2000, 卷号: 63, 期号: 1, 页码: -
作者: Feng, TF; Li, XQ; Ma, WG; Zhang, F; Feng, TF , Nankai Univ, Dept Phys, Tianjin 300070, Peoples R China.

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收藏 | 浏览/下载：16/0 | 提交时间：2012/08/29

Rare B-decays Higgs Mass Correction Standard Model B->s-gamma Decay Gauge Theories Doublet Model Sum-rules Parameter B->x-s-gamma Bosons

Rare radiative decay b -> X-s gamma in the technicolor with scalars model 期刊论文 OAI收割
HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS-CHINESE EDITION, 2000, 卷号: 24, 期号: 8, 页码: 711-718
作者: Xiong ZH(熊兆华); Chen HS(陈和生); Lu L(卢亮); Xiong, ZH; Chen, HS

收藏 | 浏览/下载：9/0 | 提交时间：2016/06/28

technicolor with scalars model decay of b -> X-s gamma QCD corrections