Zobrazeno 1 - 10
of 387
pro vyhledávání: '"Baring, Matthew G."'
The intense magnetic fields of neutron stars naturally lead to strong anisotropy and polarization of radiation emanating from their surfaces, both being sensitive to the hot spot position on the surface. Accordingly, pulse phase-resolved intensities
Externí odkaz:
http://arxiv.org/abs/2411.06621
Autor:
Trigg, Aaron C., Stewart, Rachel, van Kooten, Alex, Burns, Eric, Roberts, Oliver J., Frederiks, Dmitry D., Baring, Matthew G., Younes, George, Svinkin, Dmitry S., Wadiasingh, Zorawar, Veres, Peter, Bhat, Narayana, Briggs, Michael S., Scotton, Lorenzo, Goldstein, Adam, Busmann, Malte, O'Connor, Brendan, Hu, Lei, Gruen, Daniel, Riffeser, Arno, Zoeller, Raphael, Palmese, Antonella, Huppenkothen, Daniela, Kouveliotou, Chryssa
We present the detection and analysis of GRB 231115A, a candidate extragalactic magnetar giant flare (MGF) observed by Fermi/GBM and localized by INTEGRAL to the starburst galaxy M82. This burst exhibits distinctive temporal and spectral characterist
Externí odkaz:
http://arxiv.org/abs/2409.06056
Autor:
Keskin, Ozge, Gogus, Ersin, Kaneko, Yuki, Demirer, Mustafa, Yamasaki, Shotaro, Baring, Matthew G., Lin, Lin, Roberts, Oliver J., Kouveliotou, Chryssa
SGR J1935+2154 has truly been the most prolific magnetar over the last decade: It has been entering into burst active episodes once every 1-2 years since its discovery in 2014, it emitted the first Galactic fast radio burst associated with an X-ray b
Externí odkaz:
http://arxiv.org/abs/2402.18151
Autor:
Hu, Chin-Ping, Narita, Takuto, Enoto, Teruaki, Younes, George, Wadiasingh, Zorawar, Baring, Matthew G., Ho, Wynn C. G., Guillot, Sebastien, Ray, Paul S., Guver, Tolga, Rajwade, Kaustubh, Arzoumanian, Zaven, Kouveliotou, Chryssa, Harding, Alice K., Gendreau, Keith C.
Magnetars are neutron stars with extremely high magnetic fields that exhibit various X-ray phenomena such as sporadic sub-second bursts, long-term persistent flux enhancements, and variable rates of rotation period change. In 2020, a fast radio burst
Externí odkaz:
http://arxiv.org/abs/2402.09291
Autor:
Trigg, Aaron C., Burns, Eric, Roberts, Oliver J., Negro, Michela, Svinkin, Dmitry S., Baring, Matthew G., Wadiasingh, Zorawar, Christensen, Nelson L., Andreoni, Igor, Briggs, Michael S., Di Lalla, Niccolo, Frederiks, Dmitry D., Lipunov, Vladimir M., Omodei, Nicola, Ridnaia, Anna V., Veres, Peter, Lysenko, Alexandra L.
Publikováno v:
A&A 687, A173 (2024)
Magnetars are slowly rotating neutron stars that possess the strongest magnetic fields ($10^{14}-10^{15} \mathrm{G}$) known in the cosmos. They display a range of transient high-energy electromagnetic activity. The brightest and most energetic of the
Externí odkaz:
http://arxiv.org/abs/2311.09362
Autor:
Roberts, Oliver J., Baring, Matthew G., Huppenkothen, Daniela, Gogus, Ersin, Kaneko, Yuki, Kouveliotou, Chryssa, Lin, Lin, van der Horst, Alexander J., Younes, George
Publikováno v:
ApJL 956 L27 (2023)
Magnetars are young neutron stars powered by the strongest magnetic fields in the Universe (10$^{13-15}$ G). Their transient X-ray emission usually manifests as short (a few hundred milliseconds), bright, energetic ($\sim$ 10$^{40-41}$ erg) X-ray bur
Externí odkaz:
http://arxiv.org/abs/2306.08130
Autor:
Lower, Marcus E., Younes, George, Scholz, Paul, Camilo, Fernando, Dunn, Liam, Johnston, Simon, Enoto, Teruaki, Sarkissian, John M., Reynolds, John E., Palmer, David M., Arzoumanian, Zaven, Baring, Matthew G., Gendreau, Keith, Göğüş, Ersin, Guillot, Sebastien, van der Horst, Alexander J., Hu, Chin-Ping, Kouveliotou, Chryssa, Lin, Lin, Malacaria, Christian, Stewart, Rachael, Wadiasingh, Zorawar
We report the radio and high-energy properties of a new outburst from the radio-loud magnetar 1E 1547.0$-$5408. Following the detection of a short burst from the source with Swift-BAT on 2022 April 7, observations by NICER detected an increased flux
Externí odkaz:
http://arxiv.org/abs/2302.07397
Magnetars are neutron stars characterized by strong surface magnetic fields generally exceeding the quantum critical value of 44.1 TeraGauss. High-energy photons propagating in their magnetospheres can be attenuated by QED processes like photon split
Externí odkaz:
http://arxiv.org/abs/2210.00104
The surfaces of neutron stars are likely sources of strongly polarized soft X rays due to the presence of strong magnetic fields. Scattering transport in the surface layers is critical to the determination of the emergent anisotropy of light intensit
Externí odkaz:
http://arxiv.org/abs/2207.05145
Autor:
Crocker, Roland M., Macias, Oscar, Mackey, Dougal, Krumholz, Mark R., Ando, Shin'ichiro, Horiuchi, Shunsaku, Baring, Matthew G., Gordon, Chris, Venville, Thomas, Duffy, Alan R., Yang, Rui-Zhi, Aharonian, Felix, Hinton, J. A., Song, Deheng, Ruiter, Ashley J., Filipović, Miroslav D.
Publikováno v:
Nature Astronomy (2022)
The Fermi Bubbles are giant, gamma-ray emitting lobes emanating from the nucleus of the Milky Way discovered in ~1-100 GeV data collected by the Large Area Telescope on board the Fermi Gamma-Ray Space Telescope. Previous work has revealed substructur
Externí odkaz:
http://arxiv.org/abs/2204.12054