Related papers: 5 years of survey on the Crab Nebula with SPI/INTE…

The search for short-term flares in extended VHE Crab Nebula observations with the Whipple 10m telescope

In 1989, the Whipple 10m telescope achieved the first indisputable detection of a TeV gamma-ray source, the Crab Nebula. Until its decommissioning in 2011, the Whipple telescope took regular measurements of the nebula. With the recent…

High Energy Astrophysical Phenomena · Physics 2015-08-28 Anna O'Faolain de Bhroithe , VERITAS collaboration

Measurement of the absolute Crab flux with NuSTAR

We present results from a NuSTAR observation of the Crab made at a large off-axis angle of 1.5\degree. At these angles X-rays do not pass through the optics, but rather illuminate the detectors directly due to incomplete baffling. Due to…

High Energy Astrophysical Phenomena · Physics 2017-05-31 Kristin K. Madsen , Karl Forster and , Brian W. Grefenstette , Fiona A. Harrison , Daniel Stern

A Search for Pulsed TeV Gamma Ray Emission from the Crab Pulsar

We present the results of a search for pulsed TeV emission from the Crab pulsar using the Whipple Observatory's 10m gamma-ray telescope. The direction of the Crab pulsar was observed for a total of 73.4 hours between 1994 November and 1997…

Astrophysics · Physics 2007-05-23 A. M. Burdett , I. H. Bond , P. J. Boyle , S. M. Bradbury , J. H. Buckley , D. A. Carter-Lewis , M. Catanese , M. F. Cawley , M. D'Vali , D. J. Fegan , S. J. Fegan , J. P. Finley , J. A. Gaidos , G. H. Gillanders , T. A. Hall , A. M. Hillas , J. Kildea , J. Knapp , F. Krennrich , M. J. Lang , S. LeBohec , R. W. Lessard , C. Masterson , P. Moriarty , J. Quinn , H. J. Rose , F. W. Samuelson , G. H. Sembroski , R. Srinivasan , V. V. Vassiliev , T. C. Weekes

The Infrared to Gamma-Ray Pulse Shape of the Crab Nebula Pulsar

We analyze the pulse shape of the Crab Nebula pulsar in the near-infrared, optical, ultraviolet, X-ray, and gamma-ray bands, including previously unpublished ROSAT HRI observations. We show that, in addition to the previously known trend…

Astrophysics · Physics 2009-10-28 Stephen S. Eikenberry , Giovanni G. Fazio

Search for Pulsed TeV Gamma-ray Emission from the Crab Pulsar

We present the results of a search for pulsed TeV emission from the Crab pulsar using the Whipple Observatory's 10 m gamma-ray telescope. The direction of the Crab pulsar was observed for a total of 73.4 hours between 1994 November and 1997…

Astrophysics · Physics 2009-10-31 R. W. Lessard , I. H. Bond , S. M. Bradbury , J. H. Buckley , A. M. Burdett , D. A. Carter-Lewis , M. Catanese , M. F. Cawley , M. D'Vali , D. J. Fegan , J. P. Finley , J. A. Gaidos , G. H. Gillanders , T. Hall , A. M. Hillas , F. Krennrich , M. J. Lang , C. Masterson , P. Moriarty , J. Quinn , H. J. Rose , F. W. Samuelson , G. H. Sembroski , R. Srinivasan , V. V. Vassiliev , T. C. Weekes

The Crab pulsar in the 0.75-30 MeV range as seen by CGRO COMPTEL

We present the time-averaged characteristics of the Crab pulsar in the 0.75-30 MeV energy window using data from the imaging Compton Telescope COMPTEL aboard the Compton Gamma-Ray Observatory (CGRO) collected over its 9 year mission.…

Astrophysics · Physics 2009-11-07 L. Kuiper , W. Hermsen , G. Cusumano , R. Diehl , V. Schonfelder , A. Strong , K. Bennett , M. McConnell

First Detection of a Pulsar above 100 GeV

We present the detection of pulsed gamma-ray emission from the Crab Pulsar above 100 GeV with the VERITAS array of atmospheric Cherenkov telescopes. Gamma-ray emission at theses energies is not expected in present pulsar models. We find…

High Energy Astrophysical Phenomena · Physics 2019-08-13 A. Nepomuk Otte

The Crab pulsar and its pulsar-wind nebula in the optical and infrared

We investigate the emission mechanism and evolution of pulsars that are associated with supernova remnants. We used imaging techniques in both the optical and near infrared, using images with very good seeing (<0.6) to study the immediate…

High Energy Astrophysical Phenomena · Physics 2015-05-14 A. Tziamtzis , P. Lundqvist , A. A. Djupvik

Six years of VERITAS observations of the Crab Nebula

The Crab Nebula is the brightest source in the very-high-energy (VHE) gamma-ray sky and one of the best studied non-thermal objects. The dominant VHE emission mechanism is believed to be inverse Compton scattering of low energy photons on…

High Energy Astrophysical Phenomena · Physics 2026-03-31 Kevin Meagher

H.E.S.S. Observations of PKS 2155-304

The high-frequency peaked BL Lac PKS 2155-304 at redshift z=0.117 has been detected with high significance (~45 sigma) at energies greater than 160 GeV, using the H.E.S.S. stereoscopic array of imaging air-Cherenkov telescopes in Namibia. A…

Astrophysics · Physics 2012-08-27 The H. E. S. S. Collaboration , : , F. Aharonian

On the variability of the GeV and multi-TeV gamma-ray emission from the Crab Nebula

Recently the AGILE $\gamma$-ray telescope has reported the enhanced $\gamma$-ray emission above 100 MeV from the direction of the Crab Nebula during a period of a few days. This intriguing observation has been confirmed by the Fermi-LAT…

High Energy Astrophysical Phenomena · Physics 2015-05-20 W. Bednarek , W. Idec

The Crab Nebula at subarcsecond resolution with the International LOFAR Telescope

We present International LOw Frequency ARray (LOFAR) Telescope (ILT) observations of the Crab Nebula, the remnant of a core-collapse supernova explosion observed by astronomers in 1054. The field of the Crab Nebula was observed between 120…

High Energy Astrophysical Phenomena · Physics 2025-07-16 M. Arias , R. Timmerman , F. Sweijen , R. J. van Weeren , C. G. Bassa

Dissecting the Crab Nebula with JWST: Pulsar wind, dusty filaments, and Ni/Fe abundance constraints on the explosion mechanism

We present JWST observations of the Crab Nebula, the iconic remnant of the historical SN 1054. The observations include NIRCam and MIRI imaging mosaics, plus MIRI/MRS IFU spectra that probe two select locations within the ejecta filaments.…

High Energy Astrophysical Phenomena · Physics 2024-06-04 Tea Temim , J. Martin Laming , P. J. Kavanagh , Nathan Smith , Patrick Slane , William P. Blair , Ilse De Looze , Niccolò Bucciantini , Anders Jerkstrand , Nicole Marcelina Gountanis , Ravi Sankrit , Dan Milisavljevic , Armin Rest , Maxim Lyutikov , Joseph DePasquale , Thomas Martin , Laurent Drissen , John Raymond , Ori D. Fox , Maryam Modjaz , Anatoly Spitkovsky , Lou Strolger

Properties and Spatial Distribution of Dust Emission in the Crab Nebula

Recent infrared (IR) observations of freshly-formed dust in supernova remnants (SNRs) have yielded significantly lower dust masses than predicted by theoretical models and measured from high redshift observations. The Crab Nebula's pulsar…

Astrophysics of Galaxies · Physics 2015-06-05 Tea Temim , George Sonneborn , Eli Dwek , Richard G. Arendt , Robert D. Gehrz , Patrick Slane , Thomas L. Roellig

The Surprising Crab Nebula

We will present our study of the flux and spectral variability of the Crab above 100 MeV on different timescales ranging from days to weeks. In addition to the four main intense and day-long flares detected by AGILE and Fermi-LAT between…

High Energy Astrophysical Phenomena · Physics 2013-03-12 E. Striani , M. Tavani , V. Vittorini

Detection of Small Flares from the Crab Nebula with Fermi-LAT

Gamma radiation from the Crab pulsar wind nebula (PWN) shows significant variability at $\sim100$ MeV energies, recently revealed with spaceborne gamma-ray telescopes. Here we report the results of a systematic search for gamma-ray flares…

High Energy Astrophysical Phenomena · Physics 2020-07-08 Masanori Arakawa , Masaaki Hayashida , Dmitry Khangulyan , Yasunobu Uchiyama

Spectral Evolution of the September 2010 gamma-ray flare from the Crab Nebula (V2)

Strong gamma-ray flares from the Crab Nebula have been recently discovered by AGILE and confirmed by Fermi-LAT. We study here the spectral evolution in the gamma-ray energy range above 50 MeV of the September 2010 flare that was…

High Energy Astrophysical Phenomena · Physics 2015-05-27 V. Vittorini , M. Tavani , G. Pucella , I. Donnarumma

Fine phase resolved spectroscopy of the X-ray emission of the Crab pulsar (PSR B0531+21) observed with BeppoSAX

The Crab Nebula and the Pulsar have been pointed several times by the BeppoSAX satellite. We analysed all these observations, summed together, to study the main spectral properties with a good phase resolution. A new accurate estimate of…

Astrophysics · Physics 2007-05-23 E. Massaro , G. Cusumano , M. Litterio , T. Mineo

Peta-electron volt gamma-ray emission from the Crab Nebula

The Crab pulsar and the surrounding nebula powered by the pulsar's rotational energy through the formation and termination of a relativistic electron-positron wind is a bright source of gamma-rays carrying crucial information about this…

High Energy Astrophysical Phenomena · Physics 2021-11-15 The LHAASO Collaboration , Zhen Cao , F. Aharonian , Q. An , Axikegu , L. X. Bai , Y. X. Bai , Y. W. Bao , D. Bastieri , X. J. Bi , Y. J. Bi , H. Cai , J. T. Cai , Zhe Cao , J. Chang , J. F. Chang , B. M. Chen , E. S. Chen , J. Chen , Liang Chen , Liang Chen , Long Chen , M. J. Chen , M. L. Chen , Q. H. Chen , S. H. Chen , S. Z. Chen , T. L. Chen , X. L. Chen , Y. Chen , N. Cheng , Y. D. Cheng , S. W. Cui , X. H. Cui , Y. D. Cui , B. D'Ettorre Piazzoli , B. Z. Dai , H. L. Dai , Z. G. Dai , Danzengluobu , D. della Volpe , X. J. Dong , K. K. Duan , J. H. Fan , Y. Z. Fan , Z. X. Fan , J. Fang , K. Fang , C. F. Feng , L. Feng , S. H. Feng , Y. L. Feng , B. Gao , C. D. Gao , L. Q. Gao , Q. Gao , W. Gao , M. M. Ge , L. S. Geng , G. H. Gong , Q. B. Gou , M. H. Gu , F. L. Guo , J. G. Guo , X. L. Guo , Y. Q. Guo , Y. Y. Guo , Y. A. Han , H. H. He , H. N. He , J. C. He , S. L. He , X. B. He , Y. He , M. Heller , Y. K. Hor , C. Hou , X. Hou , H. B. Hu , S. Hu , S. C. Hu , X. J. Hu , D. H. Huang , Q. L. Huang , W. H. Huang , X. T. Huang , X. Y. Huang , Z. C. Huang , F. Ji , X. L. Ji , H. Y. Jia , K. Jiang , Z. J. Jiang , C. Jin , T. Ke , D. Kuleshov , K. Levochkin , B. B. Li , Cheng Li , Cong Li , F. Li , H. B. Li , H. C. Li , H. Y. Li , Jie Li , Jian Li , K. Li , W. L. Li , X. R. Li , Xin Li , Xin Li , Y. Li , Y. Z. Li , Zhe Li , Zhuo Li , E. W. Liang , Y. F. Liang , S. J. Lin , B. Liu , C. Liu , D. Liu , H. Liu , H. D. Liu , J. Liu , J. L. Liu , J. S. Liu , J. Y. Liu , M. Y. Liu , R. Y. Liu , S. M. Liu , W. Liu , Y. Liu , Y. N. Liu , Z. X. Liu , W. J. Long , R. Lu , H. K. Lv , B. Q. Ma , L. L. Ma , X. H. Ma , J. R. Mao , A. Masood , Z. Min , W. Mitthumsiri , T. Montaruli , Y. C. Nan , B. Y. Pang , P. Pattarakijwanich , Z. Y. Pei , M. Y. Qi , Y. Q. Qi , B. Q. Qiao , J. J. Qin , D. Ruffolo , V. Rulev , A. Sáiz , L. Shao , O. Shchegolev , X. D. Sheng , J. Y. Shi , H. C. Song , Yu. V. Stenkin , V. Stepanov , Y. Su , Q. N. Sun , X. N. Sun , Z. B. Sun , P. H. T. Tam , Z. B. Tang , W. W. Tian , B. D. Wang , C. Wang , H. Wang , H. G. Wang , J. C. Wang , J. S. Wang , L. P. Wang , L. Y. Wang , R. N. Wang , Wei Wang , Wei Wang , X. G. Wang , X. J. Wang , X. Y. Wang , Y. Wang , Y. D. Wang , Y. J. Wang , Y. P. Wang , Z. H. Wang , Z. X. Wang , Zhen Wang , Zheng Wang , D. M. Wei , J. J. Wei , Y. J. Wei , T. Wen , C. Y. Wu , H. R. Wu , S. Wu , W. X. Wu , X. F. Wu , S. Q. Xi , J. Xia , J. J. Xia , G. M. Xiang , D. X. Xiao , G. Xiao , H. B. Xiao , G. G. Xin , Y. L. Xin , Y. Xing , D. L. Xu , R. X. Xu , L. Xue , D. H. Yan , J. Z. Yan , C. W. Yang , F. F. Yang , J. Y. Yang , L. L. Yang , M. J. Yang , R. Z. Yang , S. B. Yang , Y. H. Yao , Z. G. Yao , Y. M. Ye , L. Q. Yin , N. Yin , X. H. You , Z. Y. You , Y. H. Yu , Q. Yuan , H. D. Zeng , T. X. Zeng , W. Zeng , Z. K. Zeng , M. Zha , X. X. Zhai , B. B. Zhang , H. M. Zhang , H. Y. Zhang , J. L. Zhang , J. W. Zhang , L. X. Zhang , Li Zhang , Lu Zhang , P. F. Zhang , P. P. Zhang , R. Zhang , S. R. Zhang , S. S. Zhang , X. Zhang , X. P. Zhang , Y. F. Zhang , Y. L. Zhang , Yi Zhang , Yong Zhang , B. Zhao , J. Zhao , L. Zhao , L. Z. Zhao , S. P. Zhao , F. Zheng , Y. Zheng , B. Zhou , H. Zhou , J. N. Zhou , P. Zhou , R. Zhou , X. X. Zhou , C. G. Zhu , F. R. Zhu , H. Zhu , K. J. Zhu , X. Zuo

The Crab Nebula Revisited Using HST/WFC3

It has been over 24 years since the iconic Crab Nebula has been visited by the high spatial resolution eye of the Hubble Space Telescope. The expanding nebula is dynamic on these timescales, with many of the outer filaments of the nebula…

Solar and Stellar Astrophysics · Physics 2025-12-15 William P. Blair , Ravi Sankrit , Dan Milisavljevic , Tea Temim , J. Martin Laming , Patrick Slane , Ziwei Ding , Thomas Martin