Results 101 to 110 of about 195 (150)

The First Insights into an Ultraluminous X-Ray Pulsar with XRISM: Phase-resolved High-resolution Spectroscopy of the Fe K-shell Band of M82 X-2

The Astrophysical Journal
During its performance-verification phase, XRISM observed the M82 galaxy for a net exposure of 207.7 ks, with the ultraluminous X-ray pulsar (ULXP) X-2 included in the field of view. A pulsation search identified a candidate signal with a period close to
Shogo B. Kobayashi, Peter Kosec, Erin Boettcher, Renata Cumbee, Adam Foster, Yutaka Fujita, Kotaro Fukushima, Skylar Grayson, Gabriel Grell, Edmund Hodges-Kluck, Ann Hornschemeier, Richard Kelley, Caroline Kilbourne, Mike Loewenstein, Ikuyuki Mitsuishi, Dustin Nguyen, Evan Scannapieco, Takeshi Tsuru, Noriko Yamasaki, Mihoko Yukita   +19 more
doaj   +1 more source

A Striking Confluence Between Theory and Observations of High-Mass X-ray Binary Pulsars. [PDF]

Res Astron Astrophys, 2018
Christodoulou DM, Laycock SGT, Kazanas D.   +2 more
europepmc   +1 more source

Deep Very Long Baseline Interferometry Constraints on Compact Radio Cores in Four Ultraluminous X-Ray Sources

The Astrophysical Journal
We present high-sensitivity very long baseline interferometry (VLBI) observations of four ultraluminous X-ray sources (ULXs): Holmberg II X-1, IC 342 X-1, NGC 6946 X-1, and NGC 925 X-1.
Ailing Wang, Hua Feng, Tao An, Yijia Zhang, Jun Yang, Roberto Soria, Lian Tao, Thomas Russell, Jing Guo, Liang Zhang   +9 more
doaj   +1 more source

The Great Pretenders Among the ULX Class. [PDF]

Res Astron Astrophys, 2017
Christodoulou DM, Laycock SGT, Kazanas D, Cappallo R, Contopoulos I.   +4 more
europepmc   +1 more source

Energy Flow and Radiation Efficiency in Radiative GRMHD Simulations of Neutron Star Ultraluminous X-Ray Sources

The Astrophysical Journal
We investigate numerically the energy flow and radiation efficiency of accreting neutron stars as potential ultraluminous X-ray sources (ULXs). We perform 10 simulations in radiative general relativistic magnetohydrodynamics, exploring six different ...
Fatemeh Kayanikhoo, Włodek Kluźniak, David Abarca, Miljenko Čemeljić   +3 more
doaj   +1 more source

<i>NICER</i> and <i>Fermi</i> GBM Observations of the First Galactic Ultraluminous X-ray Pulsar Swift J0243.6+6124. [PDF]

Astrophys J, 2018
Wilson-Hodge CA, Malacaria C, Jenke PA, Jaisawal GK, Kerr M, Wolff MT, Arzoumanian Z, Chakrabarty D, Doty JP, Gendreau KC, Guillot S, Ho WCG, LaMarr B, Markwardt CB, Özel F, Prigozhin GY, Ray PS, Ramos-Lerate M, Remillard RA, Strohmayer TE, Vezie ML, Wood KS.   +21 more
europepmc   +1 more source

High-redshift star formation in the Atacama large millimetre/submillimetre array era. [PDF]

R Soc Open Sci, 2020
Hodge JA, da Cunha E.
europepmc   +1 more source

Variable Nature of Magnetically-Driven Ultra-Fast Outflows. [PDF]

Astrophys J Lett, 2018
Fukumura K, Kazanas D, Shrader C, Behar E, Tombesi F, Contopoulos I.   +5 more
europepmc   +1 more source

How to Swallow a Sun. [PDF]

Sci Am, 2017
Cenko SB, Gehrels N.
europepmc   +1 more source

Lynx x-ray microcalorimeter. [PDF]

J Astron Telesc Instrum Syst, 2019
Bandler SR, Chervenak JA, Datesman AM, Devasia AM, DiPirro M, Sakai K, Smith SJ, Stevenson TR, Yoon W, Bennett D, Mates B, Swetz D, Ullom JN, Irwin KD, Eckart ME, Figueroa-Feliciano E, McCammon D, Ryu K, Olson J, Zeiger B.   +19 more
europepmc   +1 more source