SNEWS: the SuperNova Early Warning System

Antonioli, P.; Fienberg, Richard Tresch; Fleurot, F.; Fukuda, Y.; Fulgione, W.; Habig, A.; Heise, J.; McDonald, A.B.; Mills, C.; Namba, T.; Robinson, Leif J.; Scholberg, K.; Schwendener, M. H.; Sinnott, Roger W.; Stacey, Blake C.; Suzuki, Y.; Tafirout, R.; Vigorito, C.; Viren, B.; Virtue, C. J.; Zichichi, A.

doi:10.1088/1367-2630/6/1/114

Cited by 268 publications

(232 citation statements)

References 31 publications

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“…The detailed observation of the onset of a supernova explosion is of much interest to astronomers. Since 2009, IceCube has been sending real-time datagrams to the Supernova Early Warning System (SNEWS) (Antonioli et al 2004) when detecting supernova candidate events. SNEWS has been set up to broadcast a reliable alert to the astronomy community when a supernova has been detected by several neutrino detectors within seconds of each other.…”

Section: Introductionmentioning

confidence: 99%

IceCube sensitivity for low-energy neutrinos from nearby supernovae

Abbasi¹,

Abdou²,

Abu‐Zayyad³

et al. 2011

A&A

139

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This paper describes the response of the IceCube neutrino telescope located at the geographic south pole to outbursts of MeV neutrinos from the core collapse of nearby massive stars. IceCube was completed in December 2010 forming a lattice of 5160 photomultiplier tubes that monitor a volume of ∼1 km 3 in the deep Antarctic ice for particle induced photons. The telescope was designed to detect neutrinos with energies greater than 100 GeV. Owing to subfreezing ice temperatures, the photomultiplier dark noise rates are particularly low. Hence IceCube can also detect large numbers of MeV neutrinos by observing a collective rise in all photomultiplier rates on top of the dark noise. With 2 ms timing resolution, IceCube can detect subtle features in the temporal development of the supernova neutrino burst. For a supernova at the galactic center, its sensitivity matches that of a background-free megaton-scale supernova search experiment. The sensitivity decreases to 20 standard deviations at the galactic edge (30 kpc) and 6 standard deviations at the Large Magellanic Cloud (50 kpc). IceCube is sending triggers from potential supernovae to the Supernova Early Warning System. The sensitivity to neutrino properties such as the neutrino hierarchy is discussed, as well as the possibility to A109, page 1 of 18 detect the neutronization burst, a short outbreak of ν e 's released by electron capture on protons soon after collapse. Tantalizing signatures, such as the formation of a quark star or a black hole as well as the characteristics of shock waves, are investigated to illustrate IceCube's capability for supernova detection.

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Section: Introductionmentioning

confidence: 99%

IceCube sensitivity for low-energy neutrinos from nearby supernovae

Abbasi¹,

Abdou²,

Abu‐Zayyad³

et al. 2011

A&A

139

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show abstract

“…A network of neutrino detectors around the world (SNEWS) will alert astronomers in the event of a SN burst [27], neutrinos arriving earlier than photons on Earth. Moreover, we could determine the angular location of a SN with its neutrinos [28,29] with an error of about 5 o in e.g.…”

Section: What Could We Learn From the Next Supernova Burst?mentioning

confidence: 99%

Supernova Neutrinos: New Challenges and Future Directions

Tamborra¹

2017

J. Phys.: Conf. Ser.

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Abstract. Neutrinos are key particles in core-collapse supernovae. Traveling unimpeded through the stellar core, neutrinos can be direct probes of the still uncertain and fascinating supernova mechanism. Intriguing recent developments on the role of neutrinos during the stellar collapse are reviewed, as well as our current understanding of the flavor conversions in the stellar envelope. The detection perspectives of the next burst will be also outlined.

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“…As we are able to properly describe the background behaviour in LVD, we identify as neutrino burst candidates only those clusters which would be produced by background fluctuations less than 0.01 year −1 , relaxing the threshold to 1 month −1 when working in time coincidence with other detectors as in the SNEWS project (see Antonioli et al, 2004). Less sensitive thresholds on F im (i.e.…”

Section: The Selection Algorithmmentioning

confidence: 99%

Neutrino bursts from gravitational stellar collapses with LVD

Molinario

Vigorito

2012

Nuclear Physics B - Proceedings Supplements

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Abstract. The main goal of the Large Volume Detector (LVD), in the INFN Gran Sasso National Laboratory (Italy), is the study of neutrino bursts from gravitational stellar collapses in the Milky Way. Both the detector and the data analysis procedure have been actually optimized for this purpose. Moreover the modularity of the apparatus allows to obtain a duty cycle that is very close to 100%, so that the experiment is continuously monitoring the Galaxy.The search for Supernova neutrino signal is performed online, within fixed duration time windows (20 s), and offline with variable duration time windows from few ms up to 200 s. In both cases, LVD is able to disentangle a cluster of neutrino signals from the background fluctuations, and its sensitivity extends to the whole Galaxy.No candidates have been detected during almost 18 years of observation (6013 days of lifetime): the resulting 90% c.l. upper limit to the rate of gravitational stellar collapses in the Galaxy is 0.14 events/year. Detector performances, search method and data results are here reported.

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SNEWS: the SuperNova Early Warning System

Abstract: This paper provides a technical description of the SuperNova Early Warning System (SNEWS), an international network of experiments with the goal of providing an early warning of a galactic supernova.

Cited by 268 publications

References 31 publications

IceCube sensitivity for low-energy neutrinos from nearby supernovae

IceCube sensitivity for low-energy neutrinos from nearby supernovae

Supernova Neutrinos: New Challenges and Future Directions

Neutrino bursts from gravitational stellar collapses with LVD

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