Results 101 to 110 of about 2,720 (178)

Near-UV Spectrum of the Hexamethylenetetramine Cation

The Astrophysical Journal
Hexamethylenetetramine (HMT; (CH _2 ) _6 N _4 ) is a complex cage-like molecule that forms by the reaction of ammonia with formaldehyde, two of the most prevalent components of ice mantles on interstellar dust grains.
Parker Crandall, Simone Stahl, Alexander A. Breier, Otto Dopfer   +3 more
doaj   +1 more source

Rapid jet ejection from PKS 0215+015 coincident with a high-energy neutrino event

Astronomy & Astrophysics
Aims. We present a new neutrino-blazar multiwavelength-flare coincidence, observed in the blazar PKS 0215+015 that showed a strong multiwavelength outburst in positional and temporal coincidence with the IceCube neutrino track alert IC220225A similar to ...
Eppel F., Kadler M., Ros E., Benke P., Debbrecht L. C., Eich J., Edwards P. G., Giroletti M., Gokus A., Hämmerich S., Heßdörfer J., Janssen M., Kim S., Kirchner D., Kovalev Y. Y., Krichbaum T. P., Ojha R., Paraschos G. F., Rösch F., Schulga W., Sinapius J., Stevens J.   +21 more
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Young massive star clusters as teraelectronvolt emitters: Constraints from H.E.S.S. and LHAASO

Astronomy & Astrophysics
Young massive star clusters (YMSCs) have been proposed as excellent candidates for the main sources of Galactic cosmic rays (CRs) up to the petaelectronvolt range.
Batzofin Rowan, Cristofari Pierre, Egberts Kathrin   +2 more
doaj   +1 more source

Quantum Listenings: Amateur Sonification of Vacuum and other Noises [PDF]

EPJ Web of Conferences
The sensory perceptions of vision and sound may be considered as complementary doorways towards interpreting and understanding physical phenomena. We provide a few selected samples where scientific data of systems usually not directly accessible to ...
Henkel Carsten
doaj   +1 more source

An Accretion Flare Interpretation for the Ultra-high-energy Neutrino Event KM3-230213A

The Astrophysical Journal Letters
We study the origin of the ultra−high-energy (UHE) neutrino event KM3-230213A detected by KM3NeT, focusing on MRC 0614−083, which has been pinpointed as the closest blazar to the neutrino localization exhibiting variable multiwavelength emission. A joint
Chengchao Yuan, Leonard Pfeiffer, Walter Winter, Jose Maria Sanchez Zaballa, Sara Buson, Federico Testagrossa, Alessandra Azzollini   +6 more
doaj   +1 more source

Ω(2012) through the looking glass of flavour SU(3)

Physics Letters B, 2019
We perform the flavour SU(3) analysis of the recently discovered Ω(2012) hyperon. We find that well known (four star) Δ(1700) resonance with quantum numbers of JP=3/2− is a good candidate for the decuplet partner of Ω(2012) if the branching for the three-
Maxim V. Polyakov, Hyeon-Dong Son, Bao-Dong Sun, Asli Tandogan   +3 more
doaj   +1 more source

Quiet, but not silent

Astronomy & Astrophysics
As the only known unambiguous star in a Maunder minimum-like chromospheric activity state, the properties of HD 166620 can provide valuable insight into the behaviour of the Sun during the historic extended low-states of its activity cycle. The coronal X-
Bennedik M. M., Stelzer B., Isaacson H., Binks A., Caramazza M., Haberl F.   +5 more
doaj   +1 more source

Statistical parameter inference of bacterial swimming strategies

New Journal of Physics, 2018
We provide a detailed stochastic description of the swimming motion of an E.coli bacterium in two dimension, where we resolve tumble events in time.
Maximilian Seyrich, Zahra Alirezaeizanjani, Carsten Beta, Holger Stark   +3 more
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The average X-ray spectrum of the volume-complete M-, F-, G-, and K-type star sample within 10 pc of the Sun

Astronomy & Astrophysics
Context. The F-, G-, K-, and M-type stars are the most abundant stellar population in the Milky Way and are expected to contribute to its diffuse X-ray emission.
Zheng Xueying, Ponti Gabriele, Locatelli Nicola, Stelzer Beate, Magaudda Enza, Dennerl Konrad, Freyberg Michael J., Sanders Jeremy, Caramazza Marilena, Sasaki Manami, Merloni Andrea, Robrade Jan, Liu Teng, Zhang He-shou, Mayer Martin G. F., Zhang Yi, Yeung Michael C. H., Becker Werner   +17 more
doaj   +1 more source

Dispersion relations in application to chiral two-nucleon dynamics

EPJ Web of Conferences, 2014
A novel scheme based on the chiral Lagrangian is applied to the nucleon-nucleon interaction close to threshold. Subthreshold partial-wave amplitudes are calculated in chiral perturbation theory and analytically extrapolated above threshold.
Gasparyan A.M., Lutz M.F.M., Epelbaum E.
doaj   +1 more source