Zobrazeno 1 - 10
of 115
pro vyhledávání: '"Wood, Kent S."'
Autor:
Katsuda, Satoru, Enoto, Teruaki, Lommen, Andrea N., Mori, Koji, Motizuki, Yuko, Nakajima, Motoki, Ruhl, Nathaniel C., Sato, Kosuke, Stober, Gunter, Tashiro, Makoto S., Terada, Yukikatsu, Wood, Kent S.
We present long-term density trends of the Earth's upper atmosphere at altitudes between 71 and 116 km, based on atmospheric occultations of the Crab Nebula observed with X-ray astronomy satellites, ASCA, RXTE, Suzaku, NuSTAR, and Hitomi. The combina
Externí odkaz:
http://arxiv.org/abs/2302.05335
Autor:
Hazboun, Jeffrey S., Crump, Jack, Lommen, Andrea N., Montano, Sergio, Berry, Samantha J. H., Zeldes, Jesse, Teng, Elizabeth, Ray, Paul S., Kerr, Matthew, Arzoumanian, Zaven, Bogdanov, Slavko, Deneva, Julia, Lewandowska, Natalia, Markwardt, Craig B., Ransom, Scott, Enoto, Teruaki, Wood, Kent S., Gendreau, Keith C., Howe, David A., Parthasarathy, Aditya
We have used X-ray data from the Neutron Star Interior Composition Explorer (NICER) to search for long time-scale, correlated variations ("red noise") in the pulse times of arrival from the millisecond pulsars PSR J1824$-$2452A and PSR B1937+21. Thes
Externí odkaz:
http://arxiv.org/abs/2112.02160
Autor:
Rowan, Dominick M., Ghazi, Zaynab, Lugo, Lauren, Spano, Elizabeth, Lommen, Andrea, Harding, Alice, Venter, Christo, Ludlam, Renee, Ray, Paul S., Kerr, Matthew, Arzoumanian, Zaven, Bogdanov, Slavko, Deneva, Julia, Guillot, Sebastien, Lewandowska, Natalia, Markwardt, Craig B., Ransom, Scott, Enoto, Teruaki, Wood, Kent S., Gendreau, Keith
We present two years of Neutron star Interior Composition Explorer (NICER) X-ray observations of three energetic rotation-powered millisecond pulsars (MSPs): PSRs B1937+21, B1821-24, and J0218+4232. We fit Gaussians and Lorentzians to the pulse profi
Externí odkaz:
http://arxiv.org/abs/2001.11513
Autor:
Bogdanov, Slavko, Guillot, Sebastien, Ray, Paul S., Wolff, Michael T., Chakrabarty, Deepto, Ho, Wynn C. G., Kerr, Matthew, Lamb, Frederick K., Lommen, Andrea, Ludlam, Renee M., Milburn, Reilly, Montano, Sergio, Miller, M. Coleman, Baubock, Michi, Ozel, Feryal, Psaltis, Dimitrios, Remillard, Ronald A., Riley, Thomas E., Steiner, James F., Strohmayer, Tod E., Watts, Anna L., Wood, Kent S., Zeldes, Jesse, Enoto, Teruaki, Okajima, Takashi, Kellogg, James W., Baker, Charles, Markwardt, Craig B., Arzoumanian, Zaven, Gendreau, Keith C.
We present the set of deep Neutron Star Interior Composition Explorer (NICER) X-ray timing observations of the nearby rotation-powered millisecond pulsars PSRs J0437-4715, J0030+0451, J1231-1411, and J2124-3358, selected as targets for constraining t
Externí odkaz:
http://arxiv.org/abs/1912.05706
Autor:
Ray, Paul S., Arzoumanian, Zaven, Brandt, Søren, Burns, Eric, Chakrabarty, Deepto, Feroci, Marco, Gendreau, Keith C., Gevin, Olivier, Hernanz, Margarita, Jenke, Peter, Kenyon, Steven, Maccarone, José Luis Gálvez Thomas J., Okajima, Takashi, Remillard, Ronald A., Schanne, Stéphane, Tenzer, Chris, Vacchi, Andrea, Wilson-Hodge, Colleen A., Winter, Berend, Zane, Silvia, Ballantyne, David R., Bozzo, Enrico, Brenneman, Laura W., Cackett, Edward, De Rosa, Alessandra, Goldstein, Adam, Hartmann, Dieter H., McDonald, Michael, Stevens, Abigail L., Tomsick, John A., Watts, Anna L., Wood, Kent S., Zoghbi, Abderahmen
We describe the Spectroscopic Time-Resolving Observatory for Broadband Energy X-rays (STROBE-X), a probe-class mission concept that will provide an unprecedented view of the X-ray sky, performing timing and spectroscopy over both a broad energy band
Externí odkaz:
http://arxiv.org/abs/1807.01179
Autor:
Wood, Kent S., Ray, Paul S.
This chapter describes the development of X-ray Navigation at the Naval Research Laboratory (NRL) within its astrophysics research programs. The prospects for applications emerged from early discoveries of X-ray source classes and their properties. S
Externí odkaz:
http://arxiv.org/abs/1712.03832
The Station Explorer for X-ray Timing and Navigation Technology (SEXTANT) is a technology demonstration enhancement to the Neutron Star Interior Composition Explorer (NICER) mission, which is scheduled to launch in 2017 and will be hosted as an exter
Externí odkaz:
http://arxiv.org/abs/1711.08507
Autor:
Wolff, Michael T., Becker, Peter A., Gottlieb, Amy M., Fürst, Felix, Hemphill, Paul B., Marcu-Cheatham, Diana M., Pottschmidt, Katja, Schwarm, Fritz-Walter, Wilms, Jörn, Wood, Kent S.
We report new spectral modeling of the accreting X-ray pulsar Hercules X- 1. Our radiation-dominated radiative shock model is an implementation of the analytic work of Becker & Wolff on Comptonized accretion flows onto magnetic neutron stars. We obta
Externí odkaz:
http://arxiv.org/abs/1608.08978
Publikováno v:
ApJ (2016), 819, 112
Depending on the values of the energy and angular momentum per unit mass in the gas supplied at large radii, inviscid advection-dominated accretion flows can display velocity profiles with either preshock deceleration or preshock acceleration. Nakaya
Externí odkaz:
http://arxiv.org/abs/1511.05582
Autor:
Marcu-Cheatham, Diana M., Pottschmidt, Katja, Kühnel, Matthias, Müller, Sebastian, Falkner, Sebastian, Caballero, Isabel, Finger, Mark H., Jenke, Peter J., Wilson-Hodge, Colleen A., Fürst, Felix, Grinberg, Victoria, Hemphill, Paul B., Kreykenbohm, Ingo, Klochkov, Dmitry, Rothschild, Richard E., Terada, Yukikatsu, Enoto, Teruaki, Iwakiri, Wataru, Wolff, Michael T., Becker, Peter A., Wood, Kent S., Wilms, Jöern
We present a timing and spectral analysis of the X-ray pulsar XTE J1946+274 observed with Suzaku during an outburst decline in 2010 October and compare with previous results. XTE J1946+274 is a transient X-ray binary consisting of a Be-type star and
Externí odkaz:
http://arxiv.org/abs/1510.05032