A FAST RADIO BURST IN THE DIRECTION OF THE CARINA DWARF SPHEROIDAL GALAXY

By V. Ravi, R. Shannon, A. Jameson. 2014

144 citations recorded by the source corpus.

We report the real-time discovery of a fast radio burst (FRB 131104) with the Parkes radio telescope in a targeted observation of the Carina dwarf spheroidal galaxy. The dispersion measure of the burst is 779 cm−3 pc, exceeding predictions for the maximum line-of-sight Galactic contribution by a factor of 11. The temporal structure of the burst is characterized by an exponential scattering tail with a timescale of 2.0 ms at 1582 MHz that scales as frequency to the power −4.4 (all uncertainties represent 95% confidence intervals). We bound the intrinsic pulse width to be <0.64 ms due to dispersion smearing across a single spectrometer channel. Searches in 78 hr of follow-up observations with the Parkes telescope reveal no additional sporadic emission and no evidence for associated periodic radio emission. We hypothesize that the burst is associated with the Carina dwarf galaxy. Follow-up observations at other wavelengths are necessary to test this hypothesis.

Subfields: Astronomy and Astrophysics

View Paper: https://www.semanticscholar.org/paper/cd4081064961cde144bd3d84aadfc7fcc57c9f87

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Astronomy and Astrophysics

1. Bing Zhang
2. B. Metzger
3. B. Margalit
4. E. Berger
5. Michael Kramer
6. Simon Johnston
7. Xuefeng Wu
8. L. Sironi

Citations in the corpus

• Five new fast radio bursts from the HTRU high-latitude survey at Parkes: First evidence for two-component bursts (2015, background): “…in archival data that predates the first discovery (Burke-Spolaor & Bannister 2014), FRB 140514 was detected in real time allowing for fast multi-frequency follow up (Petroff et al. 2015a) and FRB 131104 was discovered during observations of the Carina Dwarf Spheroidal Galaxy (Ravi et al. 2015).”
• Millisecond Magnetar Birth Connects FRB 121102 to Superluminous Supernovae and Long-duration Gamma-Ray Bursts (2017, background): “…less and dispersion measures DM ∼ 500 − 1200 pc cm−3 much larger than expected for propagation through the Galaxy or its halo (Lorimer et al. 2007; Keane et al. 2012; Thornton et al. 2013; Spitler et al. 2014; Ravi et al. 2015; Petroff et al. 2016; Champion et al. 2016; see Katz 2016 for a review).”
• A living theory catalogue for fast radio bursts (2018, background): “Some have been monitored for up to hundreds of hours with no indication of repetition (Lorimer et al., 2007; Petroff et al., 2015; Ravi et al., 2016; Petroff et al., 2017; Bhandari et al., 2018; R. M. Shannon and Riseley, 2010).”
• A “Cosmic Comb” Model of Fast Radio Bursts (2017, background): “DeLaunay et al. (2016) discovered a sub-threshold long GRB that was spatially and temporally associated with FRB 131104 (Ravi et al. 2015); 4.”
• The SUrvey for Pulsars and Extragalactic Radio Bursts – II. New FRB discoveries and their follow-up. (2017, methodology): “…the HTRU survey (Thornton et al. 2013; Champion et al. 2016; Petroff et al. in preparation), 5 FRBs found with SUPERB (Keane et al. 2016, FRB 150418) and this paper, and 4 FRBs found at Parkes with the same instrumentation and search technique (Petroff et al. 2015a, 2017; Ravi et al. 2015, 2016).”
• THE REPEATING FAST RADIO BURST FRB 121102: MULTI-WAVELENGTH OBSERVATIONS AND ADDITIONAL BURSTS (2016, methodology): “However, at least two (see Thornton et al. 2013; Ravi et al. 2015), and possibly four (see Lorimer et al. 2007; Petroff et al. 2015a) of the Parkes FRBs display significant evidence of multi-path propagation/scattering, which can make their observed widths larger than their intrinsic widths.”
• A Concordance Picture of FRB 121102 as a Flaring Magnetar Embedded in a Magnetized Ion–Electron Wind Nebula (2018, background): “…of coherent radio emission lasting less than a few milliseconds (Lorimer et al. 2007; Keane et al. 2012; Thornton et al. 2013; Spitler et al. 2014; Ravi et al. 2015; Champion et al. 2016; Petroff et al. 2016; Lawrence et al. 2017) with large dispersion measures (DMs; DM ≈300–2000 pc cm−3), well…”
• FAST RADIO BURSTS FROM THE INSPIRAL OF DOUBLE NEUTRON STARS (2016, background): “Up to now, 17 FRBs have been detected (Lorimer et al. 2007; Keane et al. 2012; Thornton et al. 2013; Burke-Spolaor & Bannister 2014; Spitler et al. 2014, 2016; Ravi et al. 2015; Petroff et al. 2015; Champion et al. 2015; Masui et al. 2015; Keane et al. 2016).”
• Fast radio bursts as synchrotron maser emission from decelerating relativistic blast waves (2019, background): “…a few milliseconds and large dispersion measures (DM), indicating an extragalactic origin (Lorimer et al. 2007; Keane et al. 2012; Thornton et al. 2013; Spitler et al. 2014; Ravi et al. 2015; Champion et al. 2016; Petroff et al. 2016; Lawrence et al. 2017; Shannon et al. 2018; James et al. 2018).”