TeV Gamma-Ray Emission Observed from Geminga with HAWC

Baughman, B. M.; Wood, J.

doi:10.48550/arxiv.1508.03497

Cited by 4 publications

(5 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In addition to the region of the inner Galactic plane, HAWC data also reveals a region of extended emission around the Geminga pulsar [16]. Geminga is nearby (about 250 pc) and has the [8].…”

Section: Galactic Sciencementioning

confidence: 92%

“…One estimate [28], extrapolating GRB populations observed in Fermi, suggests HAWC might optimistically observe 1-2 GRBs per year. The relative gamma-ray excess from the Geminga and the Crab in data from the nearly-completed HAWC detector [16]. The excess is shown as a function of "analysis bin" which is a proxy for the energy of gamma-ray events.…”

Section: Extra-galactic Sciencementioning

confidence: 99%

“…Figure8: The relative gamma-ray excess from the Geminga and the Crab in data from the nearly-completed HAWC detector[16]. The excess is shown as a function of "analysis bin" which is a proxy for the energy of gamma-ray events.…”

mentioning

confidence: 99%

See 2 more Smart Citations

Highlights from the High Altitude Water Cherenkov Observatory

Pretz¹

2016

Proceedings of the 34th International Cosmic Ray Conference — PoS(ICRC2015)

View full text Add to dashboard Cite

The High Altitude Water Cherenkov (HAWC) Gamma-Ray Observatory was completed this year at a 4100-meter site on the flank of the Sierra Negra volcano in Mexico. HAWC is a water Cherenkov ground array with the capability to distinguish 100 GeV -100 TeV gamma rays from the hadronic cosmic-ray background. HAWC is uniquely suited to study extremely high energy cosmic-ray sources, search for regions of extended gamma-ray emission, and to identify transient gamma-ray phenomena. HAWC will play a key role in triggering multi-wavelength and multimessenger studies of active galaxies, gamma-ray bursts, supernova remnants and pulsar wind nebulae. Observation of TeV photons also provide unique tests for a number of fundamental physics phenomena including dark matter annihilation and primordial black hole evaporation. Operation began mid-2013 with the partially-completed detector. Multi-TeV emission from the Galactic Plane is clearly seen in the first year of operation, confirming a number of known TeV sources, and a number of AGN have been observed. We discuss the science of HAWC, summarize the status of the experiment, and highlight first results from analysis of the data. Figure 1: A schematic overview of the standard picture of a cosmic accelerator. High-energy electrons and hadronic cosmic-rays are accelerated in a source. The messengers received at Earth can be either these charge particles directly propagating from the source, or neutral secondaries (photons or neutrinos) produced in pion decay or inverse Compton scattering within the source.

show abstract

Section: Galactic Sciencementioning

confidence: 92%

Section: Extra-galactic Sciencementioning

confidence: 99%

See 1 more Smart Citation

Highlights from the High Altitude Water Cherenkov Observatory

Pretz¹

2016

Proceedings of the 34th International Cosmic Ray Conference — PoS(ICRC2015)

View full text Add to dashboard Cite

show abstract

“…Abdo et al 2010f,c, 2013. However, recently TeV emission from the extended PWN has been possibly detected near PSR J0633+1746 with the HAWC instrument (Baughman et al 2015). Further investigations of these sources will be crucial to clarify the mechanism of the OP emission in these pulsars.…”

Section: Discussionmentioning

confidence: 99%

Prospects for the detection of high-energy (E > 25 GeV) Fermi pulsars with the Cherenkov Telescope Array

Burtovoi

Saito

Zampieri

et al. 2017

Monthly Notices of the Royal Astronomical Society

View full text Add to dashboard Cite

Around 160 gamma-ray pulsars were discovered by the Fermi Large Area Telescope (LAT) since 2008. The most energetic of them, 12 objects with emission above 25 GeV, are suitable candidates for the detection with the current and future Imaging Atmospheric Cherenkov Telescopes above few tens of GeV. We perform an analysis of the Fermi-LAT data of these high-energy pulsars in order to determine if such objects can be detected with the Cherenkov Telescope Array (CTA). Our goal is to forecast the significance of their point source detection with CTA. We analyze 5 years of the Fermi-LAT data fitting the spectra of each pulsar at energies E >10 GeV with a power-law function. Assuming no spectral cut-off, we extrapolate the resulting spectra to the very high energy range (VHE, E >0.1 TeV) and simulate CTA observations of all 12 pulsars with the ctools software package. Using different analysis tools, individual CTA sensitivity curves are independently calculated for each pulsar and cross-checked with the ctools results. Our simulations result in significant CTA detections of up to 8 pulsars in 50 h. Observations of the most energetic Fermi pulsars with CTA will shed light on the nature of the high-energy emission of pulsars, clarifying whether the VHE emission detected in the Crab pulsar spectrum is present also in other gamma-ray pulsars.

show abstract

“…The two exceptions are the nearby Geminga and B0656+14 pulsars. TeV sources associated with these PWNe have been detected by HAWC (Abeysekara et al 2017a, Abeysekara et al 2017b, Baughman et al 2015.…”

Section: Discussionmentioning

confidence: 99%

A Search for TeV Gamma-ray Emission from Pulsar Tails by VERITAS

Benbow,

Brill,

Buckley

et al. 2021

Preprint

View full text Add to dashboard Cite

We report on the search for very-high-energy gamma-ray emission from the regions around three nearby supersonic pulsars (PSR B0355+54, PSR J0357+3205 and PSR J1740+1000) that exhibit long X-ray tails. To date there is no clear detection of TeV emission from any pulsar tail that is prominent in X-ray or radio. We provide upper limits on the TeV flux, and luminosity, and also compare these limits with other pulsar wind nebulae detected in X-rays and the tail emission model predictions. We find that at least one of the three tails is likely to be detected in observations that are a factor of 2-3 more sensitive. The analysis presented here also has implications for deriving the properties of pulsar tails, for those pulsars whose tails could be detected in TeV.

show abstract

TeV Gamma-Ray Emission Observed from Geminga with HAWC

Cited by 4 publications

References 25 publications

Highlights from the High Altitude Water Cherenkov Observatory

Highlights from the High Altitude Water Cherenkov Observatory

Prospects for the detection of high-energy (E > 25 GeV) Fermi pulsars with the Cherenkov Telescope Array

A Search for TeV Gamma-ray Emission from Pulsar Tails by VERITAS

Contact Info

Product

Resources

About