1.8k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- New York UniversityUS224 papers
- Centre National de la Recherche ScientifiqueFR193 papers
- University of AmsterdamNL154 papers
- Columbia UniversityUS112 papers
- Max Planck Institute for AstronomyDE104 papers
- Stockholm UniversitySE104 papers
- University of ChicagoUS104 papers
- Weizmann Institute of ScienceIL100 papers
- University of CoimbraPT95 papers
- Istituto Nazionale di Fisica Nucleare, Sezione di BolognaIT94 papers
- National Institute for Subatomic PhysicsNL94 papers
- University of BolognaIT94 papers
15 papers · 2 filters
Relation between spectral changes and the presence of the lower kHz QPO in the neutron-star low-mass X-ray binary 4U 1636-53
Guobao Zhang, Mariano Méndez, Andrea Sanna +2
We fitted the -keV spectrum of all the observations of the neutron-star low-mass X-ray binary 4U 163653 taken with the {\it Rossi X-ray Timing Explorer} using a model tha…
A Search for Very High-Energy Gamma Rays from the Missing Link Binary Pulsar J1023+0038 with VERITAS
E. Aliu, S. Archambault, A. Archer +82
The binary millisecond radio pulsar PSR J1023+0038 exhibits many characteristics similar to the gamma-ray binary system PSR B1259--63/LS 2883, making it an ideal candidate for the…
Millihertz quasi-periodic oscillations in 4U 1636-53 associated with bursts with positive convexity only
Ming Lyu, Mariano Mendez, Diego Altamirano +1
We investigated the convexity of all type I X-ray bursts with millihertz quasi-periodic oscillations (mHz QPOs) in 4U 1636-53 using archival observations with the Rossi X-ray Timin…
Evidence of spreading layer emission in thermonuclear superbursts
K. I. I. Koljonen, J. J. E. Kajava, E. Kuulkers
When a neutron star accretes matter from a companion star in a low-mass X-ray binary, the accreted gas settles onto the stellar surface through a boundary/spreading layer. On rare…
Phase lags of quasi-periodic oscillations across source states in the low-mass X-ray binary 4U 1636-53
Marcio G B de Avellar, Mariano Méndez, Diego Altamirano +2
While there are many dynamical mechanisms and models that try to explain the origin and phenomenology of the quasi-periodic oscillations (QPOs) seen in the X-ray light curves of lo…
The reproducible radio outbursts of SS Cygni
T. D. Russell, J. C. A. Miller-Jones, G. R. Sivakoff +16
We present the results of our intensive radio observing campaign of the dwarf nova SS Cyg during its 2010 April outburst. We argue that the observed radio emission was produced by…
On the Optical -- X-ray correlation from outburst to quiescence in Low Mass X-ray Binaries: the representative cases of V404 Cyg and Cen X-4
F. Bernardini, D. M. Russell, K. I. I. Koljonen +3
Low mass X-ray binaries (LMXBs) show evidence of a global correlation of debated origin between X-ray and optical luminosity. We study for the first time this correlation in two tr…
The wind nebula around magnetar Swift J1834.9-0846
G. Younes, C. Kouveliotou, O. Kargaltsev +12
We report on the analysis of two deep XMM-Newton observations of the magnetar Swift J1834.9-0846 and its surrounding extended emission taken in March 2014 and October 2014, 2.5 and…
Furiously Fast and Red: Sub-second Optical Flaring in V404 Cyg during the 2015 Outburst Peak
P. Gandhi, S. P. Littlefair, L. K. Hardy +25
We present observations of rapid (sub-second) optical flux variability in V404 Cyg during its 2015 June outburst. Simultaneous three-band observations with the ULTRACAM fast imager…
G11.2-0.3: The Young Remnant of a Stripped-Envelope Supernova
Kazimierz J. Borkowski, Stephen P. Reynolds, Mallory S. E. Roberts
We present results of a 400-ks Chandra observation of the young shell supernova remnant (SNR) G11.2-0.3, containing a pulsar and pulsar-wind nebula (PWN). We measure a mean expansi…
NuSTAR observations of water megamaser AGN
A. Masini, A. Comastri, M. Baloković +18
Aims. Study the connection between the masing disk and obscuring torus in Seyfert 2 galaxies. Methods. We present a uniform X-ray spectral analysis of the high energy properties of…
A "high-hard" outburst of the black hole X-ray binary GS 1354-64
K. I. I. Koljonen, D. M. Russell, J. M. Corral-Santana +5
We study in detail the evolution of the 2015 outburst of GS 1354-64 (BW Cir) at optical, UV and X-ray wavelengths using Faulkes Telescope South/LCOGT, SMARTS and Swift. The outburs…
The variable spin-down rate of the transient magnetar XTE J1810--197
F. Pintore, F. Bernardini, S. Mereghetti +7
We have analyzed XMM-Newton and Chandra observations of the transient magnetar XTE J1810-197, spanning more than 11 years, from the initial phases of the 2003 outburst to the curre…
Events leading up to the June 2015 outburst of V404 Cyg
F. Bernardini, D. M. Russell, A. W. Shaw +5
On 2015 June 15 the burst alert telescope (BAT) on board {\em Swift} detected an X-ray outburst from the black hole transient V404 Cyg. We monitored V404 Cyg for the last 10 years…
Probing the effects of a thermonuclear X-ray burst on the neutron star accretion flow with NuSTAR
N. Degenaar, K. I. I. Koljonen, D. Chakrabarty +4
Observational evidence has been accumulating that thermonuclear X-ray bursts ignited on the surface of neutron stars influence the surrounding accretion flow. Here, we exploit the…