Zobrazeno 1 - 10
of 373
pro vyhledávání: '"Watts, Anna"'
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
Autor:
Dorsman, Bas, Salmi, Tuomo, Watts, Anna L., Ng, Mason, Kamath, Satish, Bobrikova, Anna, Poutanen, Juri, Loktev, Vladislav, Kini, Yves, Choudhury, Devarshi, Vinciguerra, Serena, Bogdanov, Slavko, Chakrabarty, Deepto
Pulse profile modelling (PPM) is a technique for inferring mass, radius and hotspot properties of millisecond pulsars. PPM is now regularly used for analysis of rotation-powered millisecond pulsars (RMPs) with data from the Neutron Star Interior Comp
Externí odkaz:
http://arxiv.org/abs/2409.07908
Autor:
Chatziioannou, Katerina, Cromartie, H. Thankful, Gandolfi, Stefano, Tews, Ingo, Radice, David, Steiner, Andrew W., Watts, Anna L.
The past years have witnessed tremendous progress in understanding the properties of neutron stars and of the dense matter in their cores, made possible by electromagnetic observations of neutron stars and the detection of gravitational waves from th
Externí odkaz:
http://arxiv.org/abs/2407.11153
Autor:
Rutherford, Nathan, Mendes, Melissa, Svensson, Isak, Schwenk, Achim, Watts, Anna L., Hebeler, Kai, Keller, Jonas, Prescod-Weinstein, Chanda, Choudhury, Devarshi, Raaijmakers, Geert, Salmi, Tuomo, Timmerman, Patrick, Vinciguerra, Serena, Guillot, Sebastien, Lattimer, James M.
Pulse profile modeling of X-ray data from NICER is now enabling precision inference of neutron star mass and radius. Combined with nuclear physics constraints from chiral effective field theory ($\chi$EFT), and masses and tidal deformabilities inferr
Externí odkaz:
http://arxiv.org/abs/2407.06790
Autor:
Choudhury, Devarshi, Salmi, Tuomo, Vinciguerra, Serena, Riley, Thomas E., Kini, Yves, Watts, Anna L., Dorsman, Bas, Bogdanov, Slavko, Guillot, Sebastien, Ray, Paul S., Reardon, Daniel J., Remillard, Ronald A., Bilous, Anna V., Huppenkothen, Daniela, Lattimer, James M., Rutherford, Nathan, Arzoumanian, Zaven, Gendreau, Keith C., Morsink, Sharon M., Ho, Wynn C. G.
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$\unicode{x2013}
Externí odkaz:
http://arxiv.org/abs/2407.06789
Autor:
Salmi, Tuomo, Choudhury, Devarshi, Kini, Yves, Riley, Thomas E., Vinciguerra, Serena, Watts, Anna L., Wolff, Michael T., Arzoumanian, Zaven, Bogdanov, Slavko, Chakrabarty, Deepto, Gendreau, Keith, Guillot, Sebastien, Ho, Wynn C. G., Huppenkothen, Daniela, Ludlam, Renee M., Morsink, Sharon M., Ray, Paul S.
We report an updated analysis of the radius, mass, and heated surface regions of the massive pulsar PSR J0740+6620 using NICER data from 2018 September 21 to 2022 April 21, a substantial increase in data set size compared to previous analyses. Using
Externí odkaz:
http://arxiv.org/abs/2406.14466
Autor:
Choudhury, Devarshi, Watts, Anna L., Dittmann, Alexander J., Miller, M. Coleman, Morsink, Sharon M., Salmi, Tuomo, Vinciguerra, Serena, Bogdanov, Slavko, Guillot, Sebastien, Wolff, Michael T., Arzoumanian, Zaven
Pulse Profile Modeling (PPM), the technique used to infer mass, radius and geometric parameters for rotation-powered millisecond pulsars using data from the Neutron Star Interior Composition Explorer (NICER), relies on relativistic ray-tracing of the
Externí odkaz:
http://arxiv.org/abs/2406.07285
Autor:
Kini, Yves, Salmi, Tuomo, Vinciguerra, Serena, Watts, Anna L., Bilous, Anna, Galloway, Duncan K., van der Wateren, Emma, Khalsa, Guru Partap, Bogdanov, Slavko, Buchner, Johannes, Suleimanov, Valery
Pulse profile modelling (PPM) is a comprehensive relativistic ray-tracing technique employed to determine the properties of neutron stars. In this study, we apply this technique to the Type I X-ray burster and accretion-powered millisecond pulsar XTE
Externí odkaz:
http://arxiv.org/abs/2405.10717
Autor:
Kini, Yves, Salmi, Tuomo, Vinciguerra, Serena, Watts, Anna L., Choudhury, Devarshi, Bogdanov, Slavko, Buchner, Johannes, Meisel, Zach, Suleimanov, Valery
Pulse profile modelling is a relativistic ray-tracing technique that can be used to infer masses, radii and geometric parameters of neutron stars. In a previous study, we looked at the performance of this technique when applied to thermonuclear burst
Externí odkaz:
http://arxiv.org/abs/2308.12895
Autor:
Vinciguerra, Serena, Salmi, Tuomo, Watts, Anna L., Choudhury, Devarshi, Riley, Thomas E., Ray, Paul S., Bogdanov, Slavko, Kini, Yves, Guillot, Sebastien, Chakrabarty, Deepto, Ho, Wynn C. G., Huppenkothen, Daniela, Morsink, Sharon M., Wadiasingh, Zorawar
Publikováno v:
ApJ, 961, 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 characterising dense matter. Two independent analyses found a mass of $
Externí odkaz:
http://arxiv.org/abs/2308.09469