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THE REPEATING FAST RADIO BURST FRB 121102: MULTI-WAVELENGTH OBSERVATIONS AND ADDITIONAL BURSTS
- Source :
- NASA Astrophysics Data System, Scholz, P, Spitler, L G, Hessels, J W T, Chatterjee, S, Cordes, J M, Kaspi, V M, Wharton, R S, Bassa, C G, Bogdanov, S, Camilo, F, Crawford, F, Deneva, J, Leeuwen, J V, Lynch, R, Madsen, E C, McLaughlin, M A, Mickaliger, M, Parent, E, Patel, C, Ransom, S M, Seymour, A, Stairs, I H, Stappers, B W & Tendulkar, S P 2016, ' THE REPEATING FAST RADIO BURST FRB 121102 : MULTI-WAVELENGTH OBSERVATIONS and ADDITIONAL BURSTS ', Astrophysical Journal, vol. 833, no. 2, 177 . https://doi.org/10.3847/1538-4357/833/2/177
- Publication Year :
- 2016
- Publisher :
- American Astronomical Society, 2016.
-
Abstract
- We report on radio and X-ray observations of the only known repeating Fast Radio Burst (FRB) source, FRB 121102. We have detected six additional radio bursts from this source: five with the Green Bank Telescope at 2 GHz, and one at 1.4 GHz at the Arecibo Observatory for a total of 17 bursts from this source. All have dispersion measures consistent with a single value ($\sim559$ pc cm$^{-3}$) that is three times the predicted maximum Galactic value. The 2-GHz bursts have highly variable spectra like those at 1.4 GHz, indicating that the frequency structure seen across the individual 1.4 and 2-GHz bandpasses is part of a wideband process. X-ray observations of the FRB 121102 field with the Swift and Chandra observatories show at least one possible counterpart; however, the probability of chance superposition is high. A radio imaging observation of the field with the Jansky Very Large Array at 1.6 GHz yields a 5$\sigma$ upper limit of 0.3 mJy on any point-source continuum emission. This upper limit, combined with archival WISE 22-$\mu$m and IPHAS H$\alpha$ surveys, rules out the presence of an intervening Galactic HII region. We update our estimate of the FRB detection rate in the PALFA survey to be 1.1$^{+3.7}_{-1.0} \times 10^4$ FRBs sky$^{-1}$ day$^{-1}$ (95% confidence) for peak flux density at 1.4 GHz above 300 mJy. We find that the intrinsic widths of the 12 FRB 121102 bursts from Arecibo are, on average, significantly longer than the intrinsic widths of the 13 single-component FRBs detected with the Parkes telescope.<br />Comment: 18 pages, 5 figures. Accepted for publication in ApJ
- Subjects :
- FOS: Physical sciences
Astrophysics
general [pulsars]
01 natural sciences
law.invention
Jansky
Telescope
neutron [stars]
Pulsar
law
general [X-rays]
0103 physical sciences
Arecibo Observatory
Continuum (set theory)
010303 astronomy & astrophysics
High Energy Astrophysical Phenomena (astro-ph.HE)
Physics
010308 nuclear & particles physics
Fast radio burst
Canadian Hydrogen Intensity Mapping Experiment
Green Bank Telescope
Astronomy and Astrophysics
13. Climate action
Space and Planetary Science
general [radio continuum]
Astrophysics - High Energy Astrophysical Phenomena
Subjects
Details
- ISSN :
- 15384357
- Volume :
- 833
- Database :
- OpenAIRE
- Journal :
- The Astrophysical Journal
- Accession number :
- edsair.doi.dedup.....14f7455243b83da146ea5c52cb3c015b
- Full Text :
- https://doi.org/10.3847/1538-4357/833/2/177