Zobrazeno 1 - 10
of 34
pro vyhledávání: '"Wijngaarden, M. J. P."'
Autor:
Ho, Wynn C. G., Zhao, Yue, Heinke, Craig O., Kaplan, D. L., Shternin, Peter S., Wijngaarden, M. J. P.
Publikováno v:
Mon. Not. R. Astron. Soc. 506, 5015-5029 (2021)
We present analysis of multiple Chandra and XMM-Newton spectra, separated by 9-19 years, of four of the youngest central compact objects (CCOs) with ages < 2500 yr: CXOU J232327.9+584842 (Cassiopeia A), CXOU J160103.1-513353 (G330.2+1.0), 1WGA J1713.
Externí odkaz:
http://arxiv.org/abs/2107.08060
Autor:
Shternin, Peter S., Ofengeim, Dmitry D., Ho, Wynn C. G., Heinke, Craig O., Wijngaarden, M. J. P., Patnaude, Daniel J.
Publikováno v:
MNRAS 506, 709 (2021)
We present a new model-independent (applicable for a broad range of equations of state) analysis of the neutrino emissivity due to triplet neutron pairing in neutron star cores. We find that the integrated neutrino luminosity of the Cooper Pair Forma
Externí odkaz:
http://arxiv.org/abs/2106.05692
Autor:
Wijngaarden, M. J. P, Ho, Wynn C. G., Chang, Philip, Page, Dany, Wijnands, Rudy, Ootes, Laura S., Cumming, Andrew, Degenaar, Nathalie, Beznogov, Mikhail
Publikováno v:
Monthly Notices of the Royal Astronomical Society, Volume 493, Issue 4, April 2020, Pages 4936-4944
Valuable information about the neutron star interior can be obtained by comparing observations of thermal radiation from a cooling neutron star crust with theoretical models. Nuclear burning of lighter elements that diffuse to deeper layers of the en
Externí odkaz:
http://arxiv.org/abs/2003.09307
Publikováno v:
Mon. Not. R. Astron. Soc. 494, 44-49 (2020)
The application of standard accretion theory to observations of X-ray binaries provides valuable insights into neutron star properties, such as their spin period and magnetic field. However, most studies concentrate on relatively old systems, where t
Externí odkaz:
http://arxiv.org/abs/2003.06436
Autor:
Ho, Wynn C. G., Wijngaarden, M. J. P., Chang, Philip, Heinke, Craig O., Page, Dany, Beznogov, Mikhail, Patnaude, Daniel J.
Publikováno v:
AIP Conf. Proc. 2127, 020007 (2019)
The study of how neutron stars cool over time can provide invaluable insights into fundamental physics such as the nuclear equation of state and superconductivity and superfluidity. A critical relation in neutron star cooling is the one between obser
Externí odkaz:
http://arxiv.org/abs/1904.07505
Autor:
Wijngaarden, M. J. P., Ho, Wynn C. G., Chang, Philip, Heinke, Craig O., Page, Dany, Beznogov, Mikhail, Patnaude, Daniel J.
Publikováno v:
Mon. Not. R. Astron. Soc. 484, 974-988 (2019)
A critical relation in the study of neutron star cooling is the one between surface temperature and interior temperature. This relation is determined by the composition of the neutron star envelope and can be affected by the process of diffusive nucl
Externí odkaz:
http://arxiv.org/abs/1901.01012
Autor:
Parikh, A. S., Wijnands, R., Ootes, L. S., Page, D., Degenaar, N., Bahramian, A., Brown, E. F., Cackett, E. M., Cumming, A., Heinke, C., Homan, J., Escorial, A. Rouco, Wijngaarden, M. J. P.
Publikováno v:
A&A 624, A84 (2019)
Monitoring the cooling of neutron-star crusts heated during accretion outbursts allows us to infer the physics of the dense matter present in the crust. We examine the crust cooling evolution of the low-mass X-ray binary MXB 1659-29 up to ~505 days a
Externí odkaz:
http://arxiv.org/abs/1810.05626
Autor:
Ootes, L. S., Vats, S., Page, D., Wijnands, R., Parikh, A. S., Degenaar, N., Wijngaarden, M. J. P., Altamirano, D., Bahramian, A., Cackett, E. M., Heinke, C. O., Homan, J., Miller, J. M.
We present a new Chandra observation (performed in July 2016) of the neutron star X-ray transient IGR J17480-2446, located in the globular cluster Terzan 5. We study the continued cooling of the neutron star crust in this system that was heated durin
Externí odkaz:
http://arxiv.org/abs/1805.00610
In accreting neutron star X-ray transients, the neutron star crust can be substantially heated out of thermal equilibrium with the core during an accretion outburst. The observed subsequent cooling in quiescence (when accretion has halted) offers a u
Externí odkaz:
http://arxiv.org/abs/1712.02272
Autor:
Muterspaugh, Matthew W., Wijngaarden, M. J. P., Henrichs, H. F., Lane, Benjamin F., Hartkopf, William I., Henry, Gregory W.
The dwarf stars in the 26 year period binary alpha Com were predicted to eclipse each other in early 2015. That prediction was based on an orbit model made with over 600 astrometric observations using micrometers, speckle interferometry, and long bas
Externí odkaz:
http://arxiv.org/abs/1501.05639