Zobrazeno 1 - 10
of 923
pro vyhledávání: '"Wynn C"'
Publikováno v:
Œconomia, Vol 14, Iss 2, Pp 349-398 (2024)
Most social scientists agree that informal norms constrain available equilibria in most human interactions. However, they do not agree on how to model them: economists often make them derivative of individual preferences, while a broader tradition in
Externí odkaz:
https://doaj.org/article/0eed74aa98d24821ad8c23b220cfc584
Autor:
Riccardo Arcodia, Franz E. Bauer, S. Bradley Cenko, Kristen C. Dage, Daryl Haggard, Wynn C. G. Ho, Erin Kara, Michael Koss, Tingting Liu, Labani Mallick, Michela Negro, Pragati Pradhan, J. Quirola-Vásquez, Mark T. Reynolds, Claudio Ricci, Richard E. Rothschild, Navin Sridhar, Eleonora Troja, Yuhan Yao
Publikováno v:
Universe, Vol 10, Iss 8, p 316 (2024)
The Advanced X-ray Imaging Satellite (AXIS) promises revolutionary science in the X-ray and multi-messenger time domain. AXIS will leverage excellent spatial resolution (80× that of Swift), and a large collecting area (5–10× that of Chandra) acro
Externí odkaz:
https://doaj.org/article/18299fa1c23841b1a642b9edce751f5e
Autor:
Cristóbal M. Espinoza, Lucien Kuiper, Wynn C. G. Ho, Danai Antonopoulou, Zaven Arzoumanian, Alice K. Harding, Paul S. Ray, George Younes
Publikováno v:
The Astrophysical Journal Letters, Vol 973, Iss 2, p L39 (2024)
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 brakin
Externí odkaz:
https://doaj.org/article/7b96fb59c9af4b3983f20a0a1d542474
Autor:
Devarshi Choudhury, Tuomo Salmi, Serena Vinciguerra, Thomas E. Riley, Yves Kini, Anna L. Watts, Bas Dorsman, Slavko Bogdanov, Sebastien Guillot, Paul S. Ray, Daniel J. Reardon, Ronald A. Remillard, Anna V. Bilous, Daniela Huppenkothen, James M. Lattimer, Nathan Rutherford, Zaven Arzoumanian, Keith C. Gendreau, Sharon M. Morsink, Wynn C. G. Ho
Publikováno v:
The Astrophysical Journal Letters, Vol 971, Iss 1, p L20 (2024)
We report Bayesian inference of the mass, radius, and hot X-ray emitting region properties—using data from the Neutron Star Interior Composition ExploreR (NICER)—for the brightest rotation-powered millisecond X-ray pulsar, PSR J0437−4715. Our m
Externí odkaz:
https://doaj.org/article/2c6368f0ce8648789872a7dfccf78f83
Autor:
Alexander J. Dittmann, M. Coleman Miller, Frederick K. Lamb, Isiah M. Holt, Cecilia Chirenti, Michael T. Wolff, Slavko Bogdanov, Sebastien Guillot, Wynn C. G. Ho, Sharon M. Morsink, Zaven Arzoumanian, Keith C. Gendreau
Publikováno v:
The Astrophysical Journal, Vol 974, Iss 2, p 295 (2024)
PSR J0740+6620 is the neutron star with the highest precisely determined mass, inferred from radio observations to be 2.08 ± 0.07 M _⊙ . Measurements of its radius therefore hold promise to constrain the properties of the cold, catalyzed, high-den
Externí odkaz:
https://doaj.org/article/c44bebc0fe954995a50148525c434e71
Autor:
Tuomo Salmi, Devarshi Choudhury, Yves Kini, Thomas E. Riley, Serena Vinciguerra, Anna L. Watts, Michael T. Wolff, Zaven Arzoumanian, Slavko Bogdanov, Deepto Chakrabarty, Keith Gendreau, Sebastien Guillot, Wynn C. G. Ho, Daniela Huppenkothen, Renee M. Ludlam, Sharon M. Morsink, Paul S. Ray
Publikováno v:
The Astrophysical Journal, Vol 974, Iss 2, p 294 (2024)
We report an updated analysis of the radius, mass, and heated surface regions of the massive pulsar PSR J0740+6620 using Neutron Star Interior Composition Explorer (NICER) data from 2018 September 21 to 2022 April 21, a substantial increase in data s
Externí odkaz:
https://doaj.org/article/40a3a54c09f94e5fbb3cf23936e7f5e5
Autor:
Slavko Bogdanov, Wynn C. G. Ho
Publikováno v:
The Astrophysical Journal, Vol 969, Iss 1, p 53 (2024)
We present the first systematic X-ray pulse timing analysis of the six members of the so-called “Magnificent Seven” nearby thermally emitting isolated neutron stars (XINS) with detected pulsations. Using the extensive collection of archival XMM-N
Externí odkaz:
https://doaj.org/article/7e3722440d3d4241b48924006dfb448f
Autor:
Fei Xie, Josephine Wong, Fabio La Monaca, Roger W. Romani, Jeremy Heyl, Philip Kaaret, Alessandro Di Marco, Niccolò Bucciantini, Kuan Liu, Chi-Yung Ng, Niccolò Di Lalla, Martin C. Weisskopf, Enrico Costa, Paolo Soffitta, Fabio Muleri, Matteo Bachetti, Maura Pilia, John Rankin, Sergio Fabiani, Iván Agudo, Lucio A. Antonelli, Luca Baldini, Wayne H. Baumgartner, Ronaldo Bellazzini, Stefano Bianchi, Stephen D. Bongiorno, Raffaella Bonino, Alessandro Brez, Fiamma Capitanio, Simone Castellano, Elisabetta Cavazzuti, Chien-Ting Chen, Stefano Ciprini, Alessandra De Rosa, Ettore Del Monte, Laura Di Gesu, Immacolata Donnarumma, Victor Doroshenko, Michal Dovčiak, Steven R. Ehlert, Teruaki Enoto, Yuri Evangelista, Riccardo Ferrazzoli, Javier A. Garcia, Shuichi Gunji, Kiyoshi Hayashida, Wataru Iwakiri, Svetlana G. Jorstad, Vladimir Karas, Fabian Kislat, Takao Kitaguchi, Jeffery J. Kolodziejczak, Henric Krawczynski, Luca Latronico, Ioannis Liodakis, Simone Maldera, Alberto Manfreda, Frédéric Marin, Andrea Marinucci, Alan P. Marscher, Herman L. Marshall, Francesco Massaro, Giorgio Matt, Ikuyuki Mitsuishi, Tsunefumi Mizuno, Michela Negro, Stephen L. O’Dell, Nicola Omodei, Chiara Oppedisano, Alessandro Papitto, George G. Pavlov, Abel L. Peirson, Matteo Perri, Melissa Pesce-Rollins, Pierre-Olivier Petrucci, Andrea Possenti, Juri Poutanen, Simonetta Puccetti, Brian D. Ramsey, Ajay Ratheesh, Oliver J. Roberts, Carmelo Sgrò, Patrick Slane, Gloria Spandre, Douglas A. Swartz, Toru Tamagawa, Fabrizio Tavecchio, Roberto Taverna, Yuzuru Tawara, Allyn F. Tennant, Nicholas E. Thomas, Francesco Tombesi, Alessio Trois, Sergey S. Tsygankov, Roberto Turolla, Jacco Vink, Kinwah Wu, Silvia Zane, IXPE Collaboration, Zorawar Wadiasingh, Wynn C. G. Ho, Alice K. Harding, Keith C. Gendreau, Zaven Arzoumanian
Publikováno v:
The Astrophysical Journal, Vol 962, Iss 1, p 92 (2024)
We report on X-ray polarization measurements of the extragalactic Crab-like PSR B0540-69 and its Pulsar Wind Nebula (PWN) in the Large Magellanic Cloud, using a ∼850 ks Imaging X-ray Polarimetry Explorer (IXPE) exposure. The PWN is unresolved by IX
Externí odkaz:
https://doaj.org/article/b687c76c03d2480db0b87df28a1b8fee
Autor:
Serena Vinciguerra, Tuomo Salmi, Anna L. Watts, Devarshi Choudhury, Thomas E. Riley, Paul S. Ray, Slavko Bogdanov, Yves Kini, Sebastien Guillot, Deepto Chakrabarty, Wynn C. G. Ho, Daniela Huppenkothen, Sharon M. Morsink, Zorawar Wadiasingh, Michael T. Wolff
Publikováno v:
The Astrophysical Journal, Vol 961, Iss 1, p 62 (2024)
In 2019 the NICER collaboration published the first mass and radius inferred for PSR J0030+0451, thanks to NICER observations, and consequent constraints on the equation of state characterizing dense matter. Two independent analyses found a mass of
Externí odkaz:
https://doaj.org/article/93077cc3ddcb42978730e1aa2cfe7f8b
Autor:
Salmi, Tuomo, Deneva, Julia S., Ray, Paul S., Watts, Anna L., Choudhury, Devarshi, Kini, Yves, Vinciguerra, Serena, Cromartie, H. Thankful, Wolff, Michael T., Arzoumanian, Zaven, Bogdanov, Slavko, Gendreau, Keith, Guillot, Sebastien, Ho, Wynn C. G., Morsink, Sharon M., Cognard, Ismael, Guillemot, Lucas, Theureau, Gilles, Kerr, Matthew
Recent constraints on neutron star mass and radius have advanced our understanding of the equation of state of cold dense matter. Some of them have been obtained by modeling the pulses of three millisecond X-ray pulsars observed by the Neutron Star I
Externí odkaz:
http://arxiv.org/abs/2409.14923