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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：25/0 | 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).

Modelling the Type Ic SN 2004aw: a moderately energetic explosion of a massive C plus O star without a GRB 期刊论文 OAI收割
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2017, 卷号: 469, 期号: 2, 页码: 2498-2508
作者: Ben Ami, S.; Taubenberger, S.; Nomoto, K.; Mazzali, P. A.; Sauer, D. N.

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收藏 | 浏览/下载：45/0 | 提交时间：2017/12/06

Line: Formation Line: Identification Radiative Transfer Gamma-ray Burst: General Supernovae: General Supernovae: Individual: Sn 2004aw

Perspective of monochromatic gamma-ray line detection with the High Energy cosmic-Radiation Detection (HERD) facility onboard China's space station 期刊论文 OAI收割
ASTROPARTICLE PHYSICS, 2016, 卷号: 78, 页码: 35-42
作者: Huang, Xiaoyuan; Lamperstorfer, Anna S.; Tsai, Yue-Lin Sming; Xu, Ming; Yuan, Qiang

收藏 | 浏览/下载：18/0 | 提交时间：2016/09/27

Gamma ray line Dark matter MSSM

Perspective of monochromatic gamma-ray line detection with the high energy cosmic-radiation detection (herd) facility onboard china's space station 期刊论文 iSwitch采集
Astroparticle physics, 2016, 卷号: 78, 页码: 35-42
作者: Huang, Xiaoyuan; Lamperstorfer, Anna S.

收藏 | 浏览/下载：24/0 | 提交时间：2019/04/23

Gamma ray line Dark matter Mssm

Perspective of monochromatic gamma-ray line detection with the High Energy cosmic-Radiation Detection (HERD) facility onboard China's space station 期刊论文 OAI收割
astroparticle physics, 2016, 卷号: 78, 页码: 35-42
作者: Huang, Xiaoyuan; Lamperstorfer, Anna S.; Tsai, Yue-Lin Sming; Xu, Ming; Yuan, Qiang

收藏 | 浏览/下载：32/0 | 提交时间：2016/03/21

Gamma ray line Dark matter MSSM

Perspective of monochromatic gamma-ray line detection with the High Energy cosmic-Radiation Detection (HERD) facility onboard China's space station 期刊论文 OAI收割
ASTROPARTICLE PHYSICS, 2016, 卷号: 78, 页码: 35-42
作者: Wu, BB; Wang, L; Lu, JG; Hu, BL; Dong, YW

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收藏 | 浏览/下载：14/0 | 提交时间：2019/10/12

Gamma ray line Dark matter MSSM

Perspective of monochromatic gamma-ray line detection with the High Energy cosmic-Radiation Detection (HERD) facility onboard China's space station 期刊论文 OAI收割
ASTROPARTICLE PHYSICS, 2016, 卷号: 78, 页码: 35-42
作者: Hu, BL; Lu, JG; Wang, L; Wu, BB; Zhang, SN

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收藏 | 浏览/下载：15/0 | 提交时间：2019/10/12

Gamma ray line Dark matter MSSM

On the detectability of Galactic dark matter annihilation into monochromatic gamma-rays 期刊论文 OAI收割
中国物理C, 中国物理C, 2011, 2011, 期号: 8, 页码: 725-734, 725-734
作者: Tang ZC(唐志成); Yuan Q(袁强); Bi XJ(毕效军); Chen GM(陈国明)

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收藏 | 浏览/下载：21/0 | 提交时间：2015/12/15

dark matter line emission gamma-ray detectability dark matter line emission gamma-ray detectability

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：15/0 | 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

SMESE: A SMall explorer for solar eruptions 期刊论文 OAI收割
Advances in Space Research, 2007, 卷号: 40, 期号: 12, 页码: 1787-1801
Vial, J. C.; Auchere, F.; Chang, J.; Fang, C.; Gan, W. Q.; Klein, K. L.; Prado, J. Y.; Trottet, G.; Wang, C.; Yan, Y. H.

收藏 | 浏览/下载：41/0 | 提交时间：2014/04/30

solar flares coronal mass ejections microsatellite coronal mass ejections energetic particle events gamma-ray flare hard x-ray nonthermal electrons continuum emission alpha-line flux rope eit waves april 15