Mar. 17, 2016, Deng et al. ("Collision-induced magnetic reconnection and a unified interpretation of polarization properties of GRBs and blazars") accepted for publication in ApJL (here).
Mar. 10, 2016, Liu et al. ("A method to constrain mass and spin of GRB black hole within the NDAF model") accepted for publication in ApJ (here).
Mar. 6, 2016, Chu et al. ("Capturing the electromagnetic counterparts of binary neutron star mergers through low latency gravitational wave triggers") accepted for publication in MNRAS (here).
Mar. 4, 2016, Zhang (Bin-Bin), Zhang & Castro-Tirado ("Central engine memory of Gamma-Ray Bursts and Soft Gamma-Ray Repeaters") accepted for publication in ApJL (here).
Mar. 2, 2016, Quanta Magazine reports recent Fermi GBM signal following GW 150914 as well as theoretical challenges and possible models - including this model. (see this link, also
Feb. 25, 2016, a short paper (in ApJL style) to discuss the implications of afterglow and progenitor of FRB 150418 finished and posted to arXiv. (here).
Feb. 23, 2016, a discovery (Keane et al.) of a radio afterglow of a fast radio burst (FRB 150418) published in Nature.
Feb. 16, 2016, Yang, Zhang & Dai accepted for publication in ApJL (synchrotron heating by an FRB in a self-absorbed nebula) (here).
Feb. 15, 2016, a toy model of interpreting LIGO-GBM associations within the framework of double black hole mergers (with slight charge) posted to arXiv. (here).
Feb. 14, 2016, Fermi GBM team announced in arXiv the discovery of a putative short GRB candidate following GW 150914.
Feb. 11, 2016, Advanced LIGO team announced the discovery of gravitational waves! Many GW 150914 papers flooded in on arXiv.
Feb. 3, 2016, Gao, Zhang & Lü accepted for publication in Physical Review D (using short GRB data to constrain neutron star equation of state and the birth properties of the supra-massive neutron stars) (here).
Jan. 21, 2016, Dr. Ang Li (Xiamen University) begins her three-month visit.
Jan. 22, 2016, a Fermi proposal submitted.
Jan. 20-22, 2016, Dr. Davide Radice (Caltech) visits group, discusses a collaboration, and gives a talk.
Jan. 19, 2016, new semester starts, first lecture.
Jan. 17, 2016, a complete draft of Chapter 8 (Afterglow physics) of the book "The Physics of Gamma-Ray Bursts" finished.
Jun. 2, 2015, long paper led by Xiang-Gao Wang on testing the external forward shock models with broad-band data accepted for publication in ApJS. (here).
Jun. 1, 2015, Uhm & Zhang paper on curvature effect accepted for publication in ApJ. (here).
Jun. 1-3, 2015, Prof. Xue-Feng Wu visited the group.
May 25-27, 2015, Prof. Banibrata Mukhopadhyay visited the group and gave a talk.
May 14-Jun. 4, 2015, Dr. Lekshmi Resmi visited the group and gave a talk.
May 12-15, 2015, UT Austin student Wenbin Lu visited the group and gave a talk.
May 14, 2015, Wei Deng successfully defended his PhD dissertation entitled "Study the mechanism of the prompt emission of Gamma-Ray Bursts".
May. 13, 2015, Guiriec et al. (three-spectral-component fit to Fermi GRB data) accepted for publication in ApJ (here).
May 4, 2015, traveled to NRAO, Soccorro to have a working lunch with Dale Frail, Sarah Burke-Spolaor, and Bryan Butler to discuss FRB observations.
May 3-6, 2015, traveled to Los Alamos to attend a workshop entitled "Plasma Energization: Exchanges between Fluid and Kinetic Scales". Delivered on May 6 on "The composition of GRB jets and the ICMART model".
Apr. 22, 2015, a new paper led by Hui Sun on event rate densities and luminosity functions of extra-galactic high-energy transients submitted for publication.
Apr. 20, 2015, Dr. Z. Lucas Uhm formally joined the group as a postdoctoral research associate.
Apr. 11-18, 2015, traveled to China to attend ISSI-Beijing workshop on "GRBs as cosmological tools". Delivered a talk on "GRB populations" on Monday Apr. 13.
Apr. 18, 2015, attended a POLAR science meeting on Friday Apr. 17, delivered a talk entitled "GRB prompt emission, ICMART model, and polarization".
Apr. 9, 2015, Houjun Lu successfully defended his PhD dissertation entitled "Constraining the progenitor and central engine of gamma-ray bursts with observational data".
Mar. 23, 2015, Heard from NASA that a three-year proposal to the Astrophysics Theory Program (ATP) was selected for funding.
Mar. 23, 2015, Wei Deng et al. (numerical simulations of collision induced magnetic dissipation in Poynting flux dominated jets) accepted for publication in ApJ (here).
Mar. 23, 2015, Hou-Jun Lu et al. paper on short GRB central engine / NS equation-of-state accepted for publication in ApJ. (here).
Mar. 1, 2015, a collaboration paper led by Liang Li on a GRB afterglow study accepted for publication in ApJ (here).
Feb. 27, 2015, Shri Kulkarni visited UNLV and gave a public talk at the Russell Frank Lecture Series.
Feb. 25, 2015, the Niino, Nagamine & Zhang paper on metallicity of GRB hosts accepted for publication in MNRAS (here).
Feb. 9, 2015, a collaboration paper led by formal postdoc Massimilliano De Pasquale accepted for publication in MNRAS (here).
Jan. 29-30, 2015, Prof. Fulvio Melia and Mr. Jun-Jie Wei visited UNLV and our group. Mr. Wei gave a morning talk on "Constraining cosmological models with different cosmic rulers". Prof. Melia gave an afternoon colloquium on "The zero active mass condition in FRW cosmologies".
Jan. 28, 2015, The numerical simulation work led by Wei Deng finally submitted for publication. It verified several hypotheses of the ICMART model, and revealed some new interesting features (including a correlation between initial and final sigma values in an ICMART event. (here)
Jan. 15, 2015, UNLV College of Sciences news on APS fellow (here)
Jan. 14, 2015, the paper Gao & Zhang, "Photosphere emission from a hybrid relativistic outflow with arbitrary dimensionless entropy and magnetization in GRBs", accepted for publication in ApJ. (here)
Jan. 12, 2015, new paper led by Hou-Jun Lu submitted for publication. It uses the Swift data to study the putative magnetar central engine of short GRBs, and constrain NS equation of state. (here)
Dec. 9-12, 2014, Dr. Soeb Razzaque visited our group, and delivered a talk on high-energy neutrinos
Dec. 4, 2014, received notification, elected as a Fellow of American Physical Society, with citation: "For his significant scientific contributions to the understanding of the physical mechanisms of high-energy astrophysical sources, especially the prompt emission and afterglows of cosmological gamma-ray bursts." See link here.
Nov. 25, 2014, a new paper led by Mengxiang Lin (an undergraduate student in Peking University), entitled "Oscillation Driven Magnetospheric Activity In Pulsars" accepted for publication in ApJ (here)
Nov. 6-7, 2014, Dr. Wen-fai Fong visited our group and gave a Physics Forum talk.
Oct. 22-24, 2014, former group member, Dr. Bin-Bin Zhang from UAU, visited our group and gave a Physics Forum talk.
Sep. 11, 2014, a new paper with He Gao submitted to ApJ. We developed a theory of photosphere emission of a hybrid relativistic jet with arbitrary dimensionless entropy and magnetization, and a method to diagnose central engine properties using Fermi data. (here)
Sep. 4, 2014, a long review paper with Pawan Kumar accepted for publication in Physics Reports (here)
Aug. 29, 2014, a new paper led by Yuu Niino and Ken Nagamine about metallicity of GRB amd SN host galaxies submitted for publication. (here)
Jul. 31, 2014, the Yi, Gao & Zhang paper accepted for publication in ApJL. (here)
Jul. 27, 2014, a new paper led by Ken-Ichi Nishikawa, entitled "Magnetic Field Generation in Core-Sheath Jets via the Kinetic Kelvin-Helmholtz Instability" accepted for publication in ApJ (here)
Jul. 23, 2014, a new paper led by Fen Lyu, entitled "Distributions of Gamma-Ray Bursts and Blazars in the Lp-Ep Plane and Possible Implications for their Radiation Physics" accepted for publication in ApJ (here)
Jul. 21-25, 2014, attended INT Program INT-14-2a, "Binary Neutron Star Coalescence as a Fundamental Physics Laboratory" (Week 4 on "Merger astrophysics") (website), Institute for Nuclear Theory (INT), University of Washington
Jul. 18, 2014, short visit to SLAC, attending morning coffee.
Jul. 14, 2014, visit Caltech, gave a special talk entitled "Fast Radio Bursts: Mysterious Transients and Implications".
Jul. 6, 2014, back to Las Vegas.
Jul. 1, 2014, a new paper ("Multi-wavelength afterglows of fast radio bursts") led by Shuang-Xi Yi (co-authored by He Gao and me) submitted to ApJL for publication (here). It gave a detailed calculation on faint multi-wavelength afterglows of FRBs, and discuss observational strategies.
Jun. 28 - Jul. 3, 2014, visited Guangxi University and gave two lectures on GRBs and FRBs.
Jun. 25, 2014, colloquium at National Astronomical Observatory of China (NAOC), title: "Fast Radio Bursts: Mysterious Transients and Implications".
Jun. 23-24, 2014, organized/attended a workshop on GRB cosmology at KIAA, gave a talk entitled "GRBs in the cosmological content" (Jun. 23, 2014).
Jun. 16, 2014, Yuan & Zhang paper accepted for publication in JHEAp (here).
Jun. 15-19, 2014, attended "Gamma-ray bursts in the multi-messenger era" meeting (website), gave an invited talk entitled "Radiation Processes in GRBs" (Jun. 17, 2014).
Jun. 9-14, 2014, attended "The Unquiet Universe" meeting (website), gave an invited talk entitled "Gamma-ray bursts prompt emission and afterglow: observations vs. theory" (Jun. 9, 2014).
May 28-31, 2014, attended SPCS2014 (Shanghai Particle Physics and Cosmology Symposium) (website), gave an invited talk entitled "High energy neutrinos from gamma-ray bursts" (May 31, 2014).
May 24-27, 2014, visited Huazhong University of Science Technology (HUST), gave a colloquium entitled "On the nature of fasr radio bursts".
May 23, 2014, a new paper led by You-Dong Hu, entitled "Internal Energy Dissipation of Gamma-Ray Bursts Observed with Swift: Precursors, Prompt Gamma-rays, Extended emission and Late X-ray Flares" accepted for publication in ApJ (here)
May 22-23, 2014, visited Purple Mountain Observatory and Nanjing University, gave a colloquium at PMO entitled "Fermi GeV gamma-ray excess in the Galactic center".
May 21, 2014, gave two lectures at Summer School of SPCS2014 (Shanghai Particle Physics and Cosmology Symposium) on GRBs.
May 6-7, 2014, attended "Exploring the Dynamic Universe Forum. ISSI-Beijing, China, and delivered an invited talk entitled "Electromagnetic counterparts of gravitational wave events" (May 6, 2014).
Apr. 30, 2014, a new paper led by Jiu-Zhou Wang and Wei-Hua Lei accepted for publication in ApJ (here). In this paper, we interpret the two-frequency QPOs and radio emission rebrightening within a unified two-component jet model.
Apr. 9, 2014, a new paper "Millisecond pulsar interpretation of the Galactic center gamma-ray excess", was submitted for publication in Journal of High Energy Astrophysics (here). In this paper, we suggest that millisecond pulsars are adequate to interpret the gamma-ray excess in the Galactic center without the need of introducing dark matter annihilation.
Apr. 1, 2014, the paper led by Bin-Bin Zhang "How long does a burst burst", accepted for publication in ApJ (here). In this paper, we suggest that current data do not allow us to draw the conclusion that the so-called "ultra-long GRBs" form a distinct population with a new type of progenitor.
Mar. 28, 2014, He Gao defended his PhD thesis entitled "Physics of Gamma-ray bursts and multi-messenger signals from double neutron star mergers". He will move to Pennsylvania State University to take a postdoc position in August.
Mar. 21 (Mar. 22 in China), 2014, attended a discussion meeting on POLAR mission (in IHEP, Beijing) over Skype. Delivered an invited talk entitled "Gamma-ray burst polarization & POLAR connection".
Mar. 20, 2014, one day visit to University of Utah. Delivered a colloquium entitled "On the nature of fast radio bursts".
Mar. 19, 2014, A paper led by Qiang Yuan, entitled "Fermi Large Area Telescope detection of supernova remnant RCW 86", accepted for publication in ApJL (here).
Feb. 26, 2014, Uhm & Zhang, "Fast cooling synchrotron radiation in a decaying magnetic field and gamma-ray burst emission mechanism", accepted for publication in Nature Physics (here). In this paper, we overcome the standard fast-cooling problem of GRB prompt emission, and suggest that the famous phenomenological "Band" function of GRB prompt emission with a mysterious low-energy photon index around -1 could be simply due to synchrotron emission in a varying magnetic field. This model requires a relatively large emission radius, as is expected in the "ICMART model" (here) of GRB prompt emission.
Feb. 19, 2014, Deng & Zhang, "Low energy spectral index and Ep evolution of quasi-thermal photosphere emission of gamma-ray bursts", accepted for publication in ApJ (here).
Feb. 19, 2014, Lü & Zhang, "A test of the millisecond magnetar central engine model of GRBs with Swift data", accepted for publication in ApJ (here).
Feb. 9, 2014, first-author review paper with Peter Meszaros (here) hits 500 citation mark. For a full citation statistics, see here.
Jan. 31, 2014, Szary, Zhang, Melikidze, Gil & Xu, "Radio efficiency of pulsars", accepted for publication in ApJ (here).
Jan. 28, 2014, Deng & Zhang, "Cosmological implications of Fast Radio Burst / Gamma-Ray Burst Associations" accepted for publication in ApJL (here).
Jan. 27, 2014, a new paper on GRB blastwave encountering a bump or void, led by Lucas Uhm, submitted for publication (here).
Jan. 27, 2014, a new paper entitled "Magnetic Field Amplification and Saturation in Turbulence Behind a Relativistic Shock", led by Yosuke Mizuno, accepted for publication in MNRAS (here).
Jan. 12, 2014, returned to UNLV.
Jan. 10, 2014, delivered a lunch talk at KIAA and Department of Astronomy, Peking University, China. Title: "On the nature of fast radio bursts".
Jan. 6, 2014, a new paper on a statistical analysis of GRB millisecond magnetar central engine, led by Houjun Lü,, submitted for publication in ApJ (here).
Jan. 4, 2014, attended a workshop on "GRBs and related physics frontier" in Nanjing, China. Delivered an invited talk on "On the nature of fast radio bursts".
News from Aug. to Dec., 2013:
Dec. 30, 2013, a new paper on using FRB/GRB association to study cosmology, led by Wei Deng, submitted for publication in ApJL (here).
Dec. 28, 2013, a paper on GRB light curves in the ICMART model led by Bo Zhang accepted for publication in ApJ (here).
Dec. 11-12, 2013, traveled to KIAA, Beijing for a collaborative visit.
Dec. 10, 2013, finished AST 713 (Astrophysics I) teaching.
Nov. 26, 2013, the FRB/GRB connection paper accepted for publication in ApJ Letters (here).
Nov. 23, 2013, a paper on interpreting afterglow and "kilonova" of GRB 130603B within the framework of a supra-massive magnetar central engine, led by Y.-Z. Fan, accepted for publication in ApJ Letters (here).
Nov. 21-22, 2013, visited University of Oklahoma, and delivered a colloquium talk entitled "Physics of gamma-ray bursts and prospects in the multi-messenger era".
Nov. 12, 2013, a paper on the origin of smooth cooling break in GRB afterglows, led by Z. Lucas Uhm, accepted for publication in ApJ (here).
Nov. 11-15, 2013, attended "Supernova and Gamma-Ray Bursts 2013", Kyoto, Japan. Delivered an invited talk entitled "GRB prompt emission models" (Nov. 11, 2013).
Oct. 31, 2013, Mr. Shuang-Xi Yi joined our group as a visiting student (from Nanjing University), supported by Chinese Scholarship Program.
Oct. 30, 2013, heard from NASA ADAP program that our proposal entitled "Understanding GRB physics with multi-wavelength data" (13-ADAP13-0134) has been selected for funding (3 years).
Oct. 28-29, 2013, attended Swift Science Planning Meeting, State College, Pennsylvania. Delivered a talk entitled "A possible FRB/GRB connection" (Oct. 28, 2013).
Oct. 22, 2013, Dr. Xiang-Gao Wang joined our group as a postdoc fellow, supported by Chinese Scholarship Program.
Oct. 17, 2013, a new single-author paper "A possible FRB/GRB connection: towards a multi-wavelength campaign to unveil the nature of fast radio bursts" submitted for publication (here).
Oct. 9, 2013, 1st first-author paper (here) hits 500 citation mark. For a full citation statistics, see here.
Oct. 9, 2013, a new paper "How long does a burst burst?", led by Bin-Bin Zhang at CSPAR, UAH, submitted for publication (here).
Oct. 6, 2013, long review for New Astronomy Reviews, led by He Gao, accepted for publication (here). This is a very detailed review of the analytical synchrotron external shock models of GRBs. Many useful formulae are collected.
Sep. 26, 2013, 14th first-author paper (here) hits 100 citation mark. For a full citation statistics, see here.
Sep. 23-26, 2013, Dr. Hui Li (Los Alamos National Laboratory) visited our group. Collaboration discussions.
Sep. 19, 2013, a paper on magnetar-powered "mergernova", led by Yun-Wei Yu, accepted for publication in ApJ Letters (here).
Sep. 15-20, 2013, attended "Explosive Transients: Lighthouses of the Universe" in Santorini, Greece (web site). Delivered a talk "Theories of GRB prompt emission: the case of a strongly magnetized outflow" (Sep. 19, 2013).
Aug. 6, 2013, back to UNLV after one-year sabbatical leave.