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Magnetar outbursts: an observational review
Astrophysics of Galaxies · Submitted 24 Jan 2011
abstract compiled · 2026-09-23 · no language-model review
The authors' main claim Transient outbursts from magnetars have shown to be a key property of their emission, and one of the main way to discover new sources of this class.
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The abstract, sentence by sentence
Transient outbursts from magnetars have shown to be a key property of their emission, and one of the main way to discover new sources of this class. From the discovery of the first transient event around 2003, we now count about a dozen of outbursts, which increased the number of these strongly magnetic neutron stars by a third in six years. Magnetar outbursts might involve their multi-band emission resulting in an increased activity from radio to hard X-ray, usually with a soft X-ray flux increasing by a factor of 10-1000 with respect to the quiescent level. A connected X-ray spectral evolution is also often observed, with a spectral softening during the outburst decay. The flux decay times vary a lot from source to source, ranging from a few weeks to several years, as also the decay law which can be exponential-like, a power-law or even multiple power-laws can be required to model the flux decrease. We review here on the latest observational results on the multi-band emission of magnetars, and summarize one by one all the transient events which could be studied to date from these sources.
background contribution method result interpretation main claim
| # | sentence | role | the authors' own work | states the main conclusion | strength |
|---|---|---|---|---|---|
| s0 | Transient outbursts from magnetars have shown to be a key property of their emission, and one of the main way to discover new sources of this class. | background 1.00 | 0.08 | 0.15 | asserted 1.00 |
| s1 | From the discovery of the first transient event around 2003, we now count about a dozen of outbursts, which increased the number of these strongly magnetic neutron stars by a third in six years. | background 0.96 | 0.10 | 0.08 | asserted 1.00 |
| s2 | Magnetar outbursts might involve their multi-band emission resulting in an increased activity from radio to hard X-ray, usually with a soft X-ray flux increasing by a factor of 10-1000 with respect to the quiescent level. | background 0.83 | 0.06 | 0.08 | speculative 0.74 |
| s3 | A connected X-ray spectral evolution is also often observed, with a spectral softening during the outburst decay. | result 0.52 | 0.07 | 0.04 | asserted 0.95 |
| s4 | The flux decay times vary a lot from source to source, ranging from a few weeks to several years, as also the decay law which can be exponential-like, a power-law or even multiple power-laws can be required to model the flux decrease. | result 0.62 | 0.10 | 0.05 | asserted 0.99 |
| s5 | We review here on the latest observational results on the multi-band emission of magnetars, and summarize one by one all the transient events which could be studied to date from these sources. | contribution 1.00 | 0.65 | 0.08 | asserted 0.70 |
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Original abstract
Transient outbursts from magnetars have shown to be a key property of their emission, and one of the main way to discover new sources of this class. From the discovery of the first transient event around 2003, we now count about a dozen of outbursts, which increased the number of these strongly magnetic neutron stars by a third in six years. Magnetar outbursts might involve their multi-band emission resulting in an increased activity from radio to hard X-ray, usually with a soft X-ray flux increasing by a factor of 10-1000 with respect to the quiescent level. A connected X-ray spectral evolution is also often observed, with a spectral softening during the outburst decay. The flux decay times vary a lot from source to source, ranging from a few weeks to several years, as also the decay law which can be exponential-like, a power-law or even multiple power-laws can be required to model the flux decrease. We review here on the latest observational results on the multi-band emission of magnetars, and summarize one by one all the transient events which could be studied to date from these sources.
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References
How the literature uses it
16 arXiv papers cite this in 17 sentences
Papers citing it · 8 sentences without a confident label
Cites it as background 9 papers
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In the magnetar scenario, one usually appeals to the creation or existence of small scale magnetic structures to justify the observed phenomenology [ref] .
Nonaxisymmetric Hall instability: A key to understanding magnetars · Introduction · 0.87
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On top of their persistent X-ray emission, magnetars emit very peculiar bursts and outbursts on several timescales (from a fraction of seconds to years; see [ref] and [ref] for recent reviews) emitting large amount of energy ($10^40-10^46$ ergs; the most energetic Galactic events after the supernova explosions).
Science objectives of the Einstein Probe mission · Magnetars · 0.87
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Magnetars (comprising the old Anomalous X-ray Pulsars and Soft Gamma Repeaters classes) were originally discovered in the 1970s (and initially misidentified as GRB) via their powerful flares and outburst which release large amounts of energy, i.e., $10^40 - 10^47$erg, over a wide range of timescales from fraction of seconds to years (see [ref] for a review).
Neutron-star Measurements in the Multi-messenger Era · Neutron-star diversity · 0.94
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