机构

• 理论物理研究所 [56]
• 物理研究所 [2]
• 紫金山天文台 [2]
• 金属研究所 [1]
• 高能物理研究所 [1]

采集方式

• OAI收割 [62]

内容类型

• 期刊论文 [62]

发表日期

• 2022 [1]
• 2021 [2]
• 2020 [1]
• 2019 [1]
• 2018 [2]
• 2014 [3]
• 更多

学科主题

• Physics [57]
• Astronomy ... [4]

筛选

浏览/检索结果: 共62条，第1-10条 帮助 条数/页： 5101520253035404550556065707580859095100 排序方式： 请选择题名升序题名降序提交时间升序提交时间降序作者升序作者降序发表日期升序发表日期降序 Testing dark energy after pre-recombination early dark energy 期刊论文  OAI收割 PHYSICS LETTERS B, 2022, 卷号: 832 作者:  Wang, Hao;  Piao, Yun-Song   |  收藏  |  浏览/下载：26/0  |  提交时间：2023/01/16 EQUATION-OF-STATE  COSMOLOGICAL CONSEQUENCES  CONSTRAINTS  QUINTOM  OSCILLATIONS  UNIVERSE  SAMPLE  PROBE  MODEL  VIEW   Chameleon dark energy can resolve the Hubble tension 期刊论文  OAI收割 PHYSICAL REVIEW D, 2021, 卷号: 103, 期号: 12, 页码: L121302 作者:  Cai, Rong-Gen;  Guo, Zong-Kuan;  Li Li;  Wang, Shao-Jiang;  Yu, Wang-Wei   |  收藏  |  浏览/下载：43/0  |  提交时间：2021/09/27 BARYON ACOUSTIC-OSCILLATIONS  DECELERATION-ACCELERATION TRANSITION  RED GIANT BRANCH  COSMOLOGICAL PARAMETERS  MEASUREMENT CONSTRAINTS  CEPHEID STANDARDS  COSMIC DISTANCES  SOUND-HORIZON  DATA RELEASES  FINAL DATA   Do the observational data favor a local void? 期刊论文  OAI收割 PHYSICAL REVIEW D, 2021, 卷号: 103, 期号: 12, 页码: 123539 作者:  Cai, Rong-Gen;  Ding, Jia-Feng;  Guo, Zong-Kuan;  Wang, Shao-Jiang;  Yu, Wang-Wei   |  收藏  |  浏览/下载：28/0  |  提交时间：2021/09/27 HUBBLE-SPACE-TELESCOPE  DARK-ENERGY CONSTRAINTS  PHOTOMETRY DATA RELEASE  LIGHT CURVES  COSMOLOGICAL CONSTRAINTS  SYSTEMATIC UNCERTAINTIES  CEPHEID STANDARDS  SUPERNOVA SURVEY  IA SUPERNOVAE  PAN-STARRS1   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   |  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 AJ = 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 RNIR ? 0.025 (fluence index ?0.35).   Comparison Between chi(2) and Bayesian Statistics with Considering the Redshift Dependence of Stretch and Color from JLA Data 期刊论文  OAI收割 COMMUNICATIONS IN THEORETICAL PHYSICS, 2019, 卷号: 71, 期号: 9, 页码: 1097-1108 作者:  Zhao, Ze   |  收藏  |  浏览/下载：39/0  |  提交时间：2020/06/16 DARK ENERGY  COSMOLOGICAL CONSTRAINTS  LIGHT CURVES  SUPERNOVAE   Diagnosing holographic type dark energy models with the Statefinder hierarchy, composite null diagnostic and w-w ' pair 期刊论文  OAI收割 SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY, 2018, 卷号: 61, 期号: 3, 页码: 39811 作者:  Zhao, Z;  Wang, S   |  收藏  |  浏览/下载：29/0  |  提交时间：2018/12/27 PROBE WMAP OBSERVATIONS  EQUATION-OF-STATE  COSMOLOGICAL CONSTRAINTS  ACCELERATING UNIVERSE  COSMIC COINCIDENCE  QUINTESSENCE  TRANSITION  SUPERNOVAE  INFLATION  COMPONENT   Diagnosing holographic type dark energy models with the Statefinder hierarchy, composite null diagnostic and w-w ' pair 期刊论文  OAI收割 SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY, 2018, 卷号: 61, 期号: 3, 页码: 39811 作者:  Zhao, Z;  Wang, S   |  收藏  |  浏览/下载：17/0  |  提交时间：2019/07/19 Probe Wmap Observations  Equation-of-state  Cosmological Constraints  Accelerating Universe  Cosmic Coincidence  Quintessence  Transition  Supernovae  Inflation  Component   Investigating the possibility of a turning point in the dark energy equation of state 期刊论文  OAI收割 SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY, 2014, 卷号: 57, 期号: 8, 页码: 1607-1612 作者:  Li, M 收藏  |  浏览/下载：30/0  |  提交时间：2015/06/03 BARYON ACOUSTIC-OSCILLATIONS  COSMOLOGICAL CONSTANT  ACCELERATING UNIVERSE  HUBBLE CONSTANT  IA SUPERNOVAE  CONSTRAINTS  DISTANCE  LAMBDA  MATTER  PEAK   Exact solution of vacuum field equation in Finsler spacetime 期刊论文  OAI收割 PHYSICAL REVIEW D, 2014, 卷号: 90, 期号: 6, 页码: 64049 Li, X; Chang, Z 收藏  |  浏览/下载：27/0  |  提交时间：2015/06/03 COSMOLOGICAL CONSTANT  SPECIAL RELATIVITY  DARK-MATTER  CONSTRAINTS  GRAVITY  SYMMETRY  SAMPLE  LENGTH   On the effect of the degeneracy among dark energy parameters 期刊论文  OAI收割 EUROPEAN PHYSICAL JOURNAL C, 2014, 卷号: 74, 期号: 1, 页码: 2729 Gong, YG; Gao, Q 收藏  |  浏览/下载：30/0  |  提交时间：2014/04/25 BARYON ACOUSTIC-OSCILLATIONS  EQUATION-OF-STATE  COSMOLOGICAL CONSTANT  COSMIC ACCELERATION  SUPERNOVA DATA  IA SUPERNOVAE  CONSTRAINTS  QUINTESSENCE  UNIVERSE  MODEL