18.1k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- University of California, BerkeleyUS1.3k papers
- Goddard Space Flight CenterUS457 papers
- California Institute of TechnologyUS379 papers
- Centre National de la Recherche ScientifiqueFR367 papers
- Lawrence Berkeley National LaboratoryUS262 papers
- Jet Propulsion LaboratoryUS260 papers
- Commissariat à l'Énergie Atomique et aux Énergies AlternativesFR240 papers
- National Institute for AstrophysicsIT239 papers
- University of CambridgeGB208 papers
- Imperial College LondonGB203 papers
- Institut de Recherche en Astrophysique et PlanétologieFR195 papers
- Institut National de Physique Nucléaire et de Physique des ParticulesFR181 papers
23 papers · 2 filters
FRB 121102 Bursts Show Complex Time-Frequency Structure
J. W. T. Hessels, L. G. Spitler, A. D. Seymour +23
FRB 121102 is the only known repeating fast radio burst source. Here we analyze a wide-frequency-range (1-8 GHz) sample of high-signal-to-noise, coherently dedispersed bursts detec…
Chandra Observations of NuSTAR Serendipitous Sources near the Galactic Plane
John A. Tomsick, George B. Lansbury, Farid Rahoui +8
The NuSTAR serendipitous survey has already uncovered a large number of Active Galactic Nuclei (AGN), providing new information about the composition of the Cosmic X-ray Background…
An embedded X-ray source shines through the aspherical AT2018cow: revealing the inner workings of the most luminous fast-evolving optical transients
Raffaella Margutti, B. D. Metzger, R. Chornock +41
We present the first extensive radio to gamma-ray observations of a fast-rising blue optical transient (FBOT), AT2018cow, over its first ~100 days. AT2018cow rose over a few days t…
The Curious Case of Swift J1753.5-0127: A Black Hole Low-mass X-ray Binary Analogue to Z Cam Type Dwarf Novae
A. W. Shaw, B. E. Tetarenko, G. Dubus +5
Swift J1753.5-0127 (J1753) is a candidate black hole low-mass X-ray binary (BH-LMXB) that was discovered in outburst in May 2005. It remained in outburst for years, exhibi…
Explaining the asymmetric line profile in Cepheus X-4 with spectral variation across pulse phase
Yash Bhargava, Varun Bhalerao, Ralf Ballhausen +4
The high mass X-ray binary Cep X-4, during its 2014 outburst, showed evidence for an asymmetric cyclotron line in its hard X-ray spectrum. The 2014 spectrum provides one of the cle…
NuSTAR reveals the hidden nature of SS433
M. J. Middleton, D. J. Walton, W. Alston +25
SS433 is the only Galactic binary system known to persistently accrete at highly super-critical (or hyper-critical) rates, similar to those in tidal disruption events, and likely n…
Multiple cyclotron line-forming regions in GX 301-2
F. Fuerst, S. Falkner, D. Marcu-Cheatham +6
We present two observations of the high-mass X-ray binary GX 301-2 with NuSTAR, taken at different orbital phases and different luminosities. We find that the continuum is well des…
Fast Radio Burst 121102 Pulse Detection and Periodicity: A Machine Learning Approach
Yunfan Gerry Zhang, Vishal Gajjar, Griffin Foster +4
We report the detection of 72 new pulses from the repeating fast radio burst FRB 121102 in Breakthrough Listen C-band (4-8 GHz) observations at the Green Bank Telescope. The new pu…
Spectroscopic identification of INTEGRAL high-energy sources with VLT/ISAAC
Francis Fortin, Sylvain Chaty, Alexis Coleiro +2
The INTEGRAL satellite has been observing the gamma-ray sky for 15 years and has detected over 900 X-ray sources of various nature. However, more than 200 of these sources still la…
NuSTAR observations of Mrk 766: distinguishing reflection from absorption
D. J. K. Buisson, M. L. Parker, E. Kara +14
We present two new NuSTAR observations of the narrow line Seyfert 1 (NLS1) galaxy Mrk 766 and give constraints on the two scenarios previously proposed to explain its spectrum and…
Reflection Spectroscopy of the Black Hole Binary XTE J1752-223 in its Long-Stable Hard State
Javier A. García, James F. Steiner, Victoria Grinberg +7
We present a detailed spectral analysis of the Black Hole Binary XTE J1752-223 in the hard state of its 2009 outburst. Regular monitoring of this source by RXTE provided high signa…
Discovery of pulsation dropout and turn-on during the high state of the accreting X-ray pulsar LMC X-4
McKinley C. Brumback, Ryan C. Hickox, Matteo Bachetti +6
Two \textit{NuSTAR} observations of the luminous X-ray pulsar LMC X-4 in October and November 2015 captured several bright accretion flares from this source, which has a long histo…
The Hard State of the Highly Absorbed High Inclination Black Hole Binary Candidate Swift J1658.2-4242 Observed by NuSTAR and Swift
Yanjun Xu, Fiona A. Harrison, Jamie A. Kennea +9
We present a spectral and timing analysis of the newly reported Galactic X-ray transient Swift J1658.2-4242 observed by NuSTAR and Swift. The broad-band X-ray continuum is typical…
Highest-frequency detection of FRB 121102 at 4-8 GHz using the Breakthrough Listen Digital Backend at the Green Bank Telescope
V. Gajjar, A. P. V. Siemion, D. C. Price +28
We report the first detections of the repeating fast radio burst source FRB 121102 above 5.2 GHz. Observations were performed using the 48 GHz receiver of the Robert C. Byrd Gre…
Dust scattering halo of 4U 1630-47 observed with Chandra and Swift: New constraints on the source distance
Emrah Kalemci, Thomas J. Maccarone, John A. Tomsick
We have observed the Galactic black hole transient 4U 1630-47 during the decay of its 2016 outburst with Chandra and Swift to investigate the properties of the dust scattering halo…
The geometric distance and binary orbit of PSR B1259-63
James C. A. Miller-Jones, Adam T. Deller, Ryan M. Shannon +8
The pulsar/massive star binary system PSR B1259-63 / LS 2883 is one of the best-studied gamma-ray binaries, a class of systems whose bright gamma-ray flaring can provide important…
Fermi-LAT observations of the 2017 September 10 solar flare
Nicola Omodei, Melissa Pesce-Rollins, Francesco Longo +2
The Fermi-Large Area Telescope (LAT) detection of the X8.2 GOES class solar flare of 2017 September 10 provides for the first time observations of a long duration high-energy gamma…
Einstein@Home discovers a radio-quiet gamma-ray millisecond pulsar
C. J. Clark, H. J. Pletsch, J. Wu +18
Millisecond pulsars (MSPs) are old neutron stars that spin hundreds of times per second and appear to pulsate as their emission beams cross our line of sight. To date, radio pulsat…
A unified accretion-ejection paradigm for black hole X-ray binaries. II. Observational signatures of jet-emitting disks
G. Marcel, J. Ferreira, P-O. Petrucci +10
We elaborate on the paradigm proposed in Ferreira et al. (2006), where the increase and decrease in the disk accretion rate is accompanied by a modification of the disk magnetizati…
Measuring the masses of Intermediate Polars with NuSTAR: V709 Cas, NY Lup and V1223 Sgr
A. W. Shaw, C. O. Heinke, K. Mukai +3
The X-ray spectra of intermediate polars can be modelled to give a direct measurement of white dwarf mass. Here we fit accretion column models to NuSTAR spectra of three intermedia…
Alternative explanations for extreme supersolar iron abundances inferred from the energy spectrum of Cygnus X-1
John A. Tomsick, Michael L. Parker, Javier A. Garcia +11
Here we study a 1-200 keV energy spectrum of the black hole binary Cygnus X-1 taken with NuSTAR and Suzaku. This is the first report of a NuSTAR observation of Cyg X-1 in the inter…
The evolution of GX 339-4 in the low-hard state as seen by NuSTAR and Swift
Jingyi Wang-Ji, Javier A. García, James F. Steiner +7
We analyze eleven NuSTAR and Swift observations of the black hole X-ray binary GX 339-4 in the hard state, six of which were taken during the end of the 2015 outburst, five during…
An extreme magneto-ionic environment associated with the fast radio burst source FRB 121102
D. Michilli, A. Seymour, J. W. T. Hessels +31
Fast radio bursts (FRBs) are millisecond-duration, extragalactic radio flashes of unknown physical origin. FRB 121102, the only known repeating FRB source, has been localized to a…