Zobrazeno 1 - 10
of 210
pro vyhledávání: '"Bogdanov, Slavko"'
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:
Bogdanov, Slavko, Ho, Wynn C. G.
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-Newto
Externí odkaz:
http://arxiv.org/abs/2407.00275
Autor:
Dittmann, Alexander J., Miller, M. Coleman, Lamb, Frederick K., Holt, Isiah, Chirenti, Cecilia, Wolff, Michael T., Bogdanov, Slavko, Guillot, Sebastien, Ho, Wynn C. G., Morsink, Sharon M., Arzoumanian, Zaven, Gendreau, Keith C.
PSR J0740+6620 is the neutron star with the highest precisely determined mass, inferred from radio observations to be $2.08\pm0.07\,\rm M_\odot$. Measurements of its radius therefore hold promise to constrain the properties of the cold, catalyzed, hi
Externí odkaz:
http://arxiv.org/abs/2406.14467
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
Autor:
Salmi, Tuomo, Vinciguerra, Serena, Choudhury, Devarshi, Watts, Anna L., Ho, Wynn C. G., Guillot, Sebastien, Kini, Yves, Dorsman, Bas, Morsink, Sharon M., Bogdanov, Slavko
Publikováno v:
ApJ 956 138 (2023)
We present an analysis of the effects of uncertainties in the atmosphere models on the radius, mass, and other neutron star parameter constraints for the NICER observations of rotation-powered millisecond pulsars. To date, NICER has applied the X-ray
Externí odkaz:
http://arxiv.org/abs/2308.09319
We report the discovery of a 2.11 ms binary millisecond pulsar during a targeted search of the redback optical candidate coincident with the $\gamma$-ray source 3FGL J0212.5+5320 using the Robert C. Byrd Green Bank Telescope (GBT) with the Breakthrou
Externí odkaz:
http://arxiv.org/abs/2306.04951