Zobrazeno 1 - 10
of 1 875
pro vyhledávání: '"Harding, A. K"'
Autor:
Espinoza, Cristóbal M., Kuiper, Lucien, Ho, Wynn C. G., Antonopoulou, Danai, Arzoumanian, Zaven, Harding, Alice K., Ray, Paul S., Younes, George
The way pulsars spin down is not understood in detail, but a number of possible physical mechanisms produce a spin-down rate that scales as a power of the rotation rate ($\dot\nu\propto-\nu^n$), with the power-law index $n$ called the braking index.
Externí odkaz:
http://arxiv.org/abs/2409.10759
Numerical simulations of relativistic plasmas have become more feasible, popular, and crucial for various astrophysical sources with the availability of computational resources. The necessity for high-accuracy particle dynamics is especially highligh
Externí odkaz:
http://arxiv.org/abs/2407.16505
Autor:
Arenberg, Jonathan W., Harding, Leon K., Chang, Bob, Kuehn, Steve, Oberg, Dave, Villarreal, Michaela N., Palisoc, Arthur L., Walker, Christopher, Kim, Daewook, Lung, Zach, Lung, Dave
The Single Aperture Large Telescope for Universe Studies (SALTUS) is a mission concept for a far-infrared observatory developed under the recent Astrophysics Probe Explorer opportunity from NASA. The enabling element of the program is a 14 m diameter
Externí odkaz:
http://arxiv.org/abs/2405.18529
Autor:
Chin, Gordon, Anderson, Carrie M., Bergner, Jennifer, Biver, Nicolas, Bjoraker, Gordon L., Cavalie, Thibault, DiSanti, Michael, Gao, Jian-Rong, Hartogh, Paul, Harding, Leon K., Hu, Qing, Kim, Daewook, Kulesa, Craig, de Lange, Gert, Leisawitz, David T., Levy, Rebecca C., Lichtenberger, Arthur, Marronh, Daniel P., Najita, Joan, Newswander, Trent, Rieke, George H., Rigopoulou, Dimitra, Roefsema, Peter, Roth, Nathan X., Schwarz, Kamber, Shirley, Yancy, Spilker, Justin, Stark, Antony A., van der Tak, Floris, Takashima, Yuzuru, Tielens, Alexander, Willner, David J., Wollack, Edward J., Yates, Stephen, Young, Erick, Walker, Christopher K.
The SALTUS Probe mission will provide a powerful far-infrared (far-IR) pointed space observatory to explore our cosmic origins and the possibility of life elsewhere. The observatory employs an innovative deployable 14-m aperture, with a sunshield tha
Externí odkaz:
http://arxiv.org/abs/2405.12829
Autor:
Harding, Leon K., Arenberg, Jonathan W., Donovan, Benjamin, Oberg, Dave, Goold, Ryan, Chang, Bob, Walker, Christopher, Turse, Dana, Moore, Jim, Pearson Jr, Jim C., Kidd Jr, John N., Lung, Zach, Lung, Dave
Publikováno v:
J. Astron. Telesc. Instrum. Syst. 10(4), 042303 (2024)
We describe the space observatory architecture and mission design of the SALTUS mission, a NASA Astrophysics Probe Explorer concept. SALTUS will address key far-infrared science using a 14-m diameter <45 K primary reflector (M1) and will provide unpr
Externí odkaz:
http://arxiv.org/abs/2405.12394
Recent observations have demonstrated that very-low mass stars and brown dwarfs are capable of sustaining strong magnetic fields despite their cool and neutral atmospheres. These kG field strengths are inferred based on strong highly circularly polar
Externí odkaz:
http://arxiv.org/abs/2403.08852
The goal of our work is to study the mode changes of the radio-quiet gamma-ray pulsar PSR J2021+4026 with improved detail. By accurately characterizing variations in the gamma-ray spectrum and pulse profile, we aim to relate the Fermi-LAT observation
Externí odkaz:
http://arxiv.org/abs/2403.07649
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:
Koljonen, Karri I. I., Lindseth, Sindre S., Linares, Manuel, Harding, Alice K., Turchetta, Marco
Radio emission from pulsars can be used to map out their distances through dispersion measure (DM), which quantifies the amount of radio pulse dispersion. However, this method relies on accurately modelling the free electron density in the line of si
Externí odkaz:
http://arxiv.org/abs/2402.09010
Autor:
Xie, Fei, Wong, Josephine, La Monaca, Fabio, Romani, Roger W., Heyl, Jeremy, Kaaret, Philip, Di Marco, Alessandro, Bucciantini, Niccolò, Liu, Kuan, Ng, Chi-Yung, Di Lalla, Niccolò, Weisskopf, Martin C., Costa, Enrico, Soffitta, Paolo, Muleri, Fabio, Bachetti, Matteo, Pilia, Maura, Rankin, John, Fabiani, Sergio, Agudo, Iván, Antonelli, Lucio A., Baldini, Luca, Baumgartner, Wayne H., Bellazzini, Ronaldo, Bianchi, Stefano, Bongiorno, Stephen D., Bonino, Raffaella, Brez, Alessandro, Capitanio, Fiamma, Castellano, Simone, Cavazzuti, Elisabetta, Chen, Chien-Ting, Ciprini, Stefano, De Rosa, Alessandra, Del Monte, Ettore, Di Gesu, Laura, Donnarumma, Immacolata, Doroshenko, Victor, Dovčiak, Michal, Ehlert, Steven R., Enoto, Teruaki, Evangelista, Yuri, Ferrazzoli, Riccardo, Garcia, Javier A., Gunji, Shuichi, Hayashida, Kiyoshi, Iwakiri, Wataru, Jorstad, Svetlana G., Karas, Vladimir, Kislat, Fabian, Kitaguchi, Takao, Kolodziejczak, Jeffery J., Krawczynski, Henric, Latronico, Luca, Liodakis, Ioannis, Maldera, Simone, Manfreda, Alberto, Marin, Frédéric, Marinucci, Andrea, Marscher, Alan P., Marshall, Herman L., Massaro, Francesco, Matt, Giorgio, Mitsuishi, Ikuyuki, Mizuno, Tsunefumi, Negro, Michela, O'Dell, Stephen L., Omodei, Nicola, Oppedisano, Chiara, Papitto, Alessandro, Pavlov, George G., Peirson, Abel L., Perri, Matteo, Pesce-Rollins, Melissa, Petrucci, Pierre-Olivier, Possenti, Andrea, Poutanen, Juri, Puccetti, Simonetta, Ramsey, Brian D., Ratheesh, Ajay, Roberts, Oliver J., Sgrò, Carmelo, Slane, Patrick, Spandre, Gloria, Swartz, Douglas A., Tamagawa, Toru, Tavecchio, Fabrizio, Taverna, Roberto, Tawara, Yuzuru, Tennant, Allyn F., Thomas, Nicholas E., Tombesi, Francesco, Trois, Alessio, Tsygankov, Sergey S., Turolla, Roberto, Vink, Jacco, Wu, Kinwah, Zane, Silvia, Wadiasingh, Zorawar, Ho, Wynn C. G., Harding, Alice K., Gendreau, Keith C., Arzoumanian, Zaven
We report on X-ray polarization measurements of the extra-galactic Crab-like PSR B0540-69 and its Pulsar Wind Nebula (PWN) in the Large Magellanic Cloud (LMC), using a ~850 ks Imaging X-ray Polarimetry Explorer (IXPE) exposure. The PWN is unresolved
Externí odkaz:
http://arxiv.org/abs/2402.02504