Chandra Observation of Quiescent Low-Mass X-ray Binaries in the Globular Cluster NGC 6304 (2009)
Guillot, S., Rutledge, R. E., Brown, E. F., Pavlov, G. G., Zavlin, V. E.
This paper presents the analysis of candidate quiescent low mass xray binarie (qLMXBs) observed during a short Chandra/ACIS observation of the globular cluster (GC) NGC 6304. Two out of the three...
Type Ia supernova science 2010-2020 (2009)
Howell, D. A., Conley, A., Della Valle, M., Nugent, P. E., Perlmutter, S., Marion, G. H., ...
In the next decade Type Ia supernovae (SNe Ia) will be used to test theories predicting changes in the Dark Energy equation of state with time. Ultimately this requires a dedicated space mission like...
Degenaar, N., Wijnands, R., Wolff, M. T., Ray, P. S., Wood, K. S., Homan, J., ...
The quasi-persistent neutron star X-ray transient and eclipsing binary EXO 0748-676 recently started the transition to quiescence following an accretion outburst that lasted more than 24 years. We...
Howell, D. A., Sullivan, M., Brown, E. F., Conley, A., Borgne, D. Le, Hsiao, E. Y., ...
Timmes, Brown & Truran found that metallicity variations could theoretically account for a 25% variation in the mass of 56Ni synthesized in Type Ia supernovae (SNe Ia), and thus account for a large...
First superburst from a classical low-mass X-ray binary transient (2008)
Keek, L., Kuulkers, E., Cumming, A., Brown, E.F., Suzuki, M.
We report the analysis of the first superburst from a transiently accreting neutron star system with the All-Sky Monitor (ASM) on the Rossi X-ray Timing Explorer. The superburst occurred 55 days...
Cooling of the crust in the neutron star low-mass X-ray binary MXB 1659–29 (2008)
Cackett, E.M., Wijnands, R., Miller, J.M., Brown, E.F., Degenaar, N.
In quasi-persistent neutron star transients, long outbursts cause the neutron star crust to be heated out of thermal equilibrium with the rest of the star. During quiescence, the crust then cools...
First superburst from a classical low-mass X-ray binary transient (2007)
Keek, L., Kuulkers, E., Cumming, A., Brown, E. F., Suzuki, M.
We report the analysis of the first superburst from a transiently accreting neutron star system with the All-Sky Monitor (ASM) on the Rossi X-ray Timing Explorer. The superburst occurred 55 days...
Zegers, R. G. T., Brown, E. F., Akimune, H., Austin, Sam M., Brown, B. A., ...
The Gamow-Teller strength for the transition from the ground state of 13C to the T=1/2, J^pi=3/2- excited state at 3.51 MeV in 13N is extracted via the 13C(3He,t) reaction at 420 MeV. In contrast to...
Phase separation in the crust of accreting neutron stars (2007)
Horowitz, C. J., Berry, D. K., Brown, E. F.
Nucleosynthesis, on the surface of accreting neutron stars, produces a range of chemical elements. We perform molecular dynamics simulations of crystallization to see how this complex composition...
Capturing the Fire: Flame Energetics and Neutronizaton for Type Ia Supernova Simulations (2006)
Calder, A. C., Townsley, D. M., Seitenzahl, I. R., Peng, F., Messer, O. E. B., Vladimirova, N., ...
We develop and calibrate a realistic model flame for hydrodynamical simulations of deflagrations in white dwarf (Type Ia) supernovae. Our flame model builds on the advection-diffusion-reaction model...
The neutron star soft X-ray transient 1H1905+000 in quiescence (2006)
Jonker, P. G., Bassa, C. G., Nelemans, G., Juett, A. M., Brown, E. F., Chakrabarty, D.
In this Paper we report on our analysis of a ~25 ksec. Chandra X-ray observation of the neutron star soft X-ray transient (SXT) 1H1905+000 in quiescence. Furthermore, we discuss our findings of the...
Type Ia Supernovae: Simulations and Nucleosynthesis (2005)
Brown, E. F., Calder, A. C., Plewa, T., Ricker, P. M., Robinson, K., Gallagher, J. B.
We present our first nucleosynthesis results from a numerical simulation of the thermonuclear disruption of a static cold Chandrasekhar-mass C/O white dwarf. The two-dimensional simulation was...
On Heavy Element Enrichment in Classical Novae (2003)
Alexakis, A., Calder, A. C., Heger, A., Brown, E. F., Dursi, L. J., Truran, J. W., ...
Many classical nova ejecta are enriched in CNO and Ne. Rosner et al. recently suggested that the enrichment might originate in the resonant interaction between large-scale shear flows in the accreted...
A New Method for Calculating the Flow Field in a Dump Combustor. (2002)
A combined elliptic/parabolic scheme was developed in which the elliptic code, STARPIC, was only used for the recirculation region of a dump combustor. Downstream of the recirculation region the...
A possible transient neutron star in quiescence in the globular cluster NGC 5139 (2002)
Rutledge, R.E, Bildsten, L., Brown, E.F, Pavlov, G.G, Zavlin, V.E
Using the Chandra/ACIS-I detector, we have identified an X-ray source (CXOU 132619.7-472910.8) with a thermal spectrum consistent with that observed from transiently accreting neutron stars in...
The Thermal X-ray Spectra of Cen X-4, Aql X-1, and 4U 1608-522 in Quiescence (1998)
Rutledge, R. E., Bildsten, L., Brown, E. F., Pavlov, G. G., Zavlin, V. E.
We re-analyze the available X-ray spectral data of the type I bursting neutron star transients Aql X-1, Cen X-4, and 4U 1608-522 using realistic hydrogen atmosphere models. Previous spectral fits...
Are events after endotoxemia related to circulating phospholipase A2?
Santos, A A, Browning, J L, Scheltinga, M R, Lynch, E A, Brown, E F, Lawton, P, ...
OBJECTIVE: The authors sought to determine whether the signs and symptoms of endotoxemia were related to the endotoxin-stimulated increase in circulating phospholipase A2 (PLA2) activity. BACKGROUND:...
Are events after endotoxemia related to circulating phospholipase A2?
Santos, A A, Browning, J L, Scheltinga, M R, Lynch, E A, Brown, E F, Lawton, P, ...
OBJECTIVE: The authors sought to determine whether the signs and symptoms of endotoxemia were related to the endotoxin-stimulated increase in circulating phospholipase A2 (PLA2) activity. BACKGROUND:...