Zobrazeno 1 - 10
of 399
pro vyhledávání: '"Beacom, John. F."'
Autor:
Meighen-Berger, Stephan A., Newstead, Jayden L., Beacom, John F., Bell, Nicole F., Dolan, Matthew J.
We show that the Deep Underground Neutrino Experiment (DUNE) has the potential to make a precise measurement of the total active flux of 8B solar neutrinos via neutral-current (NC) interactions with argon. This would complement proposed precise measu
Externí odkaz:
http://arxiv.org/abs/2410.00330
Super-Kamiokande's spallation backgrounds - the delayed beta decays of nuclides following cosmic-ray muons - are nearly all produced by the small fraction of muons with hadronic showers. We show that these hadronic showers also produce neutrons; thei
Externí odkaz:
http://arxiv.org/abs/2409.10611
Autor:
Zhou, Bei, Beacom, John F.
Publikováno v:
Physical Review D 109, 103003 (2024)
The Diffuse Supernova Neutrino Background (DSNB) -- a probe of the core-collapse mechanism and the cosmic star-formation history -- has not been detected, but its discovery may be imminent. A significant obstacle for DSNB detection in Super-Kamiokand
Externí odkaz:
http://arxiv.org/abs/2311.05675
We propose the first practical method to detect atmospheric tau neutrino appearance at sub-GeV energies, which would be an important test of $\nu_\mu \rightarrow \nu_\tau$ oscillations and of new-physics scenarios. In the Jiangmen Underground Neutrin
Externí odkaz:
http://arxiv.org/abs/2311.01667
Common-envelope evolution - where a star is engulfed by a companion - is a critical but poorly understood step in, e.g., the formation pathways for gravitational-wave sources. However, it has been extremely challenging to identify observable signatur
Externí odkaz:
http://arxiv.org/abs/2310.19868
Autor:
Willmer, Christopher N. A., Ly, Chun, Kikuta, Satoshi, Kattner, S. A., Jansen, Rolf A., Cohen, Seth H., Windhorst, Rogier A., Smail, Ian, Tompkins, Scott, Beacom, John F., Cheng, Cheng, Conselice, Christopher J., Frye, Brenda L., Koekemoer, Anton M., Hathi, Nimish, Hyun, Minhee, Im, Myungshin, Willner, S. P., Zhao, X., Brisken, Walter A., Civano, F., Cotton, William, Hasinger, Guenther, Maksym, W. Peter, Rieke, Marcia J., Grogin, Norman A.
We present Near-Infrared (NIR) ground-based Y, J, H, and K imaging obtained in the James Webb Space Telescope North Ecliptic Pole Time Domain Field (TDF) using the MMT-Magellan Infrared Imager and Spectrometer (MMIRS) on the MMT.These new observation
Externí odkaz:
http://arxiv.org/abs/2309.00031
Autor:
Sudoh, Takahiro, Beacom, John F.
Detecting the end of the cosmic-ray (CR) electron spectrum would provide important new insights. While we know that Milky Way sources can accelerate electrons up to at least $\sim$1PeV, the observed CR electron spectrum at Earth extends only up to 5T
Externí odkaz:
http://arxiv.org/abs/2308.13600
Autor:
Panjkov, Sonja, Auchettl, Katie, Shappee, Benjamin J., Do, Aaron, Lopez, Laura A., Beacom, John F.
We present a detailed analysis of nearly two decades of optical/UV and X-ray data to study the multi-wavelength pre-explosion properties and post-explosion X-ray properties of nearby SN2023ixf located in M101. We find no evidence of precursor activit
Externí odkaz:
http://arxiv.org/abs/2308.13101
We analyze pre-explosion ultraviolet (UV) imaging of the nearby Type II supernova SN 2023ixf in search of precursor variability. No outbursts are seen in observations obtained 15-20 yr prior to explosion to a limit of $L_{NUV} \approx 1000~L_{sun}$ a
Externí odkaz:
http://arxiv.org/abs/2308.08403
Publikováno v:
ApJ 961, 167 (2024)
The Sun is a bright gamma-ray source due to hadronic cosmic-ray interactions with solar gas. While it is known that incoming cosmic rays must generally first be reflected by solar magnetic fields to produce outgoing gamma rays, theoretical models hav
Externí odkaz:
http://arxiv.org/abs/2307.08728