Results 1 to 10 of about 130,686 (336)

Accreting Neutron Stars in Low-Mass X-Ray Binary Systems [PDF]

, 2007
Using the Rossi X-ray Timing Explorer (RossiXTE), astronomers have discovered that disk-accreting neutron stars with weak magnetic fields produce three distinct types of high-frequency X-ray oscillations.
A Cumming, A Cumming, A Spitkovsky, AL Piro, AR Villarreal, CB Markwardt, CB Markwardt, CB Markwardt, CB Markwardt, CB Markwardt, D Barret, D Barret, D Bhattacharya, D Bhattacharya, D Chakrabarty, D Chakrabarty, D Psaltis, D Psaltis, DA Smith, DK Galloway, DK Galloway, FK Lamb, FK Lamb, G Hasinger, G Ushomirsky, GB Hobbs, H Ritter, JS Heyl, JS Heyl, JWT Hessels, L Bildsten, L Lindblom, M Berger, M Klis van der, M Linares, M Méndez, M Méndez, MA Abramowicz, MA Alpar, MC Miller, MC Miller, MC Miller, MP Muno, MP Muno, MP Muno, MP Muno, MP Muno, N Shibazaki, N White, P Ghosh, P Ghosh, P Kaaret, P Kaaret, P Kaaret, P Kaaret, P Kaaret, PC Joss, PF Bloser, PG Jonker, PG Jonker, PN McDermott, R Wijnands, R Wijnands, RAD Wijnands, RAD Wijnands, RF Elsner, S Bhattacharyya, S Bhattacharyya, S Bhattacharyya, S Bhattacharyya, S Boutloukos, S Straeten van, T Belloni, T Belloni, TE Strohmayer, TE Strohmayer, TE Strohmayer, TE Strohmayer, TE Strohmayer, TE Strohmayer, TWJ Thompson, U Lee, V Radhakrishnan, W Kluzniak, W Yu, W Yu, W Zhang, W Zhang, W Zhang, WHG Lewin, Z Arzoumanian   +90 more
core   +3 more sources

Rapid X-Ray Variability of Neutron Stars in Low-Mass Binary Systems [PDF]

Nuclear Physics B - Proceedings Supplements, 1998
The dramatic discovery with the Rossi X-Ray Timing Explorer satellite of remarkably coherent $\sim$300--1200 Hz oscillations in the X-ray brightness of some sixteen neutron stars in low-mass binary systems has spurred theoretical modeling of these ...
Alpar, Arons, Arons, Bradt, Dimitrios Psaltis, Elsner, Epstein, Ford, Fortner, Frederick K. Lamb, Ghosh, Ghosh, Hasinger, Kaaret, Klein, Klein, Klein, Lamb, Lamb, Lamb, Lamb, Lamb, Lamb, M. Coleman Miller, Middleditch, Miller, Miller, Miller, Miller, Méndez, Psaltis, Psaltis, Stella, Strohmayer, Strohmayer, Swank, Titarchuk, Unno, van der Klis, van der Klis, van der Klis, Zhang   +41 more
core   +4 more sources

News on the X-ray emission from hot subdwarf stars [PDF]

Open Astronomy, 2017
In latest years, the high sensitivity of the instruments on-board the XMM-Newton and Chandra satellites allowed us to explore the properties of the X-ray emission from hot subdwarf stars.
Palombara Nicola La, Mereghetti Sandro
doaj   +3 more sources

X-Ray Polarization Study of the Neutron Star Low-mass X-Ray Binary GX 349+2

The Astrophysical Journal
We report the first X-ray polarimetric results of the neutron star (NS) low-mass X-ray binary Z-source GX 349+2 using the Imaging X-ray Polarimetry Explorer (IXPE). We discovered that the X-ray source was polarized at a polarization degree of PD = 1.1% ± 
Unnati Kashyap, Thomas J. Maccarone, Mason Ng, Eliot C. Pattie, Swati Ravi, Herman L. Marshall   +5 more
doaj   +3 more sources

X-Ray and Radio Polarimetry of the Neutron Star Low-mass X-Ray Binary GX 13+1

The Astrophysical Journal
We report the X-ray and radio polarization study of the neutron star low-mass X-ray binary (LMXB) GX 13+1 using the Imaging X-ray Polarimetry Explorer (IXPE) and Very Large Array.
Unnati Kashyap, Thomas J. Maccarone, Eliot C. Pattie, Mason Ng, Swati Ravi, Herman L. Marshall   +5 more
doaj   +3 more sources

X-Ray and Radio Polarimetry of the Neutron Star Low-mass X-Ray Binary 4U 1728–34

The Astrophysical Journal
We report the first X-ray and radio polarimetric results of the neutron star (NS) low-mass X-raydis binary atoll-source 4U 1728−34 using the Imaging X-ray Polarimetry Explorer (IXPE) and Australia Telescope Compact Array.
Unnati Kashyap, Thomas J. Maccarone, Thomas D. Russell, Mason Ng, Swati Ravi, Eliot C. Pattie, Herman L. Marshall   +6 more
doaj   +3 more sources

Search for intermittent X-ray pulsations from neutron stars in low-mass X-ray binaries [PDF]

Publications of the Astronomical Society of Australia, 2021
AbstractWe present the results of our extensive binary orbital motion corrected pulsation search for 13 low-mass X-ray binaries. These selected sources exhibit burst oscillations in X-rays with frequencies ranging from 45 to 1 122 Hz and have a binary orbital period varying from 2.1 to 18.9 h.
Yunus Emre Bahar, Manoneeta Chakraborty, Ersin Göğüş   +2 more
openaire   +4 more sources

Spectral Energy Distributions of Southern Binary X-Ray Sources

The Astrophysical Journal Supplement Series, 2023
The rapid variability of X-ray binaries (XRBs) produces a wide range of X-ray states that are linked to activity across the electromagnetic spectrum. It is particularly challenging to study a sample of sources large enough to include all types in their ...
John M. Dickey, S. D. Vrtilek, Michael McCollough, Bram Boroson, John A. Tomsick, Charles Bailyn, Jay M. Blanchard, Charlotte Johnson   +7 more
doaj   +1 more source

Low-Mass X-Ray Binaries with Strange Quark Stars [PDF]

Publications of the Astronomical Society of the Pacific, 2013
Strange quark stars (SSs) may originate from accreting neutron stars (NSs) in low-mass X-ray binaries (LMXBs). Assuming that conversion of NS matter to SSs occurs when the core density of accreting NS reaches to the density of quark deconfinement, $\sim 5 _0$, where $ _0\sim 2.7\times 10^{14}$g cm$^{-3}$ is nuclear saturation density, we investigate
Zhu, Chunhua, Lv, Guoliang, Wang, Zhaojun, Liu, Jinzhong   +3 more
openaire   +2 more sources

An Optically Discovered Outburst from XTE J1859+226

The Astrophysical Journal, 2023
Using the Zwicky Transient Facility, in 2021 February we identified the first known outburst of the black hole X-ray transient XTE J1859+226 since its discovery in 1999. The outburst was visible at X-ray, UV, and optical wavelengths for less than 20 days,
Eric C. Bellm, Yuankun Wang, Jan van Roestel, Rebecca A. Phillipson, Michael W. Coughlin, John A. Tomsick, Steven L. Groom, Brian Healy, Josiah Purdum, Ben Rusholme, Jesper Sollerman, Peter Bealo, Stefano Lora, Eddy Muyllaert, Ivo Peretto, Erik J. Schwendeman   +15 more
doaj   +1 more source