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
33 papers · 2 filters
NuSTAR and XMM-Newton observations of the Arches cluster in 2015: fading hard X-ray emission from the molecular cloud
Roman Krivonos, Maica Clavel, JaeSub Hong +6
We present results of long NuSTAR (200 ks) and XMM-Newton (100 ks) observations of the Arches stellar cluster, a source of bright thermal (kT~2 keV) X-rays with prominent Fe XXV K_…
Search for Gravitational Waves Associated with Gamma-Ray Bursts During the First Advanced LIGO Observing Run and Implications for the Origin of GRB 150906B
LIGO Scientific Collaboration, Virgo Collaboration, IPN Collaboration +1002
We present the results of the search for gravitational waves (GWs) associated with -ray bursts detected during the first observing run of the Advanced Laser Interferometer Gravi…
The e-ASTROGAM mission (exploring the extreme Universe with gamma rays in the MeV-GeV range)
Alessandro De Angelis, Vincent Tatischeff, Marco Tavani +71
e-ASTROGAM (`enhanced ASTROGAM') is a breakthrough Observatory mission dedicated to the study of the non-thermal Universe in the photon energy range from 0.3 MeV to 3 GeV. The miss…
Living on a Flare: Relativistic Reflection in V404 Cyg Observed by NuSTAR During its Summer 2015 Outburst
D. J. Walton, K. Mooley, A. L. King +19
We present first results from a series of observations of the black hole X-ray binary V404 Cyg obtained during its summer 2015 outburst, primarily focusing on observations…
IGR J18293-1213 is an eclipsing Cataclysmic Variable
Maïca Clavel, J. A. Tomsick, A. Bodaghee +7
Studying the population of faint hard X-ray sources along the plane of the Galaxy is challenging because of high-extinction and crowding, which make the identification of individua…
Evidence for intermediate polars as the origin of the Galactic Center hard X-ray emission
Charles J. Hailey, Kaya Mori, Kerstin Perez +14
Recently, unresolved hard (20-40 keV) X-ray emission has been discovered within the central 10 pc of the Galaxy, possibly indicating a large population of intermediate polars (IPs)…
Hard X-ray Emission from Sh2-104: A NuSTAR search for Gamma-ray Counterparts
E. V. Gotthelf, K. Mori, E. Aliu +11
We present NuSTAR hard X-ray observations of Sh 2-104, a compact HII region containing several young massive stellar clusters (YMSCs). We have detected distinct hard X-ray sources…
The Soft State of Cygnus X-1 Observed with NuSTAR: A Variable Corona and a Stable Inner Disk
D. J. Walton, J. A. Tomsick, K. K. Madsen +17
We present a multi-epoch hard X-ray analysis of Cygnus X-1 in its soft state based on four observations with NuSTAR. Despite the basic similarity of the observed spectra, there is…
NuSTAR Hard X-ray Survey of the Galactic Center Region II: X-ray Point Sources
JaeSub Hong, Kaya Mori, Charles J. Hailey +41
We present the first survey results of hard X-ray point sources in the Galactic Center (GC) region by NuSTAR. We have discovered 70 hard (3-79 keV) X-ray point sources in a 0.6 deg…
The first observation of an intermediate flare from SGR 1935+2154
A. V. Kozlova, G. L. Israel, D. S. Svinkin +8
We report on the bright burst detected by four Interplanetary network (IPN) spacecraft on 2015 April 12. The IPN localization of the source is consistent with the position of the r…
The nature of the torus in the heavily obscured AGN Markarian 3: an X-ray study
M. Guainazzi, G. Risaliti, H. Awaki +22
In this paper we report the results of an X-ray monitoring campaign on the heavily obscured Seyfert galaxy Markarian 3 carried out between the fall of 2014 and the spring of 2015 w…
The weak neutral Fe fluorescence line and long-term X-ray evolution of the Compton-thick AGN in NGC 7674
P. Gandhi, A. Annuar, G. B. Lansbury +26
We present X-ray observations of the active galactic nucleus (AGN) in NGC 7674. The source shows a flat X-ray spectrum, suggesting that it is obscured by Compton-thick gas…
A NuSTAR observation of the reflection spectrum of the low mass X-ray binary 4U 1728-34
Clio C. Sleator, John A. Tomsick, Ashley L. King +13
We report on a simultaneous NuSTAR and Swift observation of the neutron star low-mass X-ray binary 4U 1728-34. We identified and removed four Type I X-ray bursts during the observa…
NuSTAR and XMM-Newton Observations of the Neutron Star X-ray Binary 1RXS J180408.9-34205
R. M. Ludlam, J. M. Miller, E. M. Cackett +8
We report on observations of the neutron star (NS) residing in the low-mass X-ray binary 1RXS J180408.9-34205 taken 2015 March by and while the…
Identifying IGR J14091-6108 as a magnetic CV with a massive white dwarf using X-ray and optical observations
John A. Tomsick, Farid Rahoui, Roman Krivonos +3
IGR J14091-6108 is a Galactic X-ray source known to have an iron emission line, a hard X-ray spectrum, and an optical counterpart. Here, we report on X-ray observations of the sour…
NuSTAR reveals the extreme properties of the super-Eddington accreting SMBH in PG 1247+267
G. Lanzuisi, M. Perna, A. Comastri +26
PG1247+267 is one of the most luminous known quasars at and is a strongly super-Eddington accreting SMBH candidate. We obtained NuSTAR data of this intriguing source in De…
Spectro-timing study of GX 339-4 in a hard intermediate state
F. Fuerst, V. Grinberg, J. A. Tomsick +16
We present an analysis of NuSTAR observations of a hard intermediate state of the transient black hole GX 339-4 taken in January 2015. As the source softened significantly over the…
Supplement: Localization and broadband follow-up of the gravitational-wave transient GW150914
B. P. Abbott, R. Abbott, T. D. Abbott +1538
This Supplement provides supporting material for arXiv:1602.08492 . We briefly summarize past electromagnetic (EM) follow-up efforts as well as the organization and policy of the c…
Chandra X-Ray Spectroscopy of the Focused Wind in the Cygnus X-1 System. II. The Nondip Spectrum in the Low/Hard State - Modulations with Orbital Phase
Ivica Miškovičová, Natalie Hell, Manfred Hanke +14
The accretion onto the black hole in the system HDE 226868/Cygnus X-1 is powered by the strong line driven stellar wind of the O-type donor star. We study the X-ray properties of t…
The second Konus-Wind catalog of short gamma-ray bursts
D. S. Svinkin, D. D. Frederiks, R. L. Aptekar +7
In this catalog, we present the results of a systematic study of 295 short gamma-ray bursts (GRBs) detected by Konus-Wind (KW) from 1994 to 2010. From the temporal and spectral ana…
NuSTAR discovery of a cyclotron line in the accreting X-ray pulsar IGR J16393-4643
Arash Bodaghee, John A. Tomsick, Francesca A. Fornasini +10
The high-mass X-ray binary and accreting X-ray pulsar IGR J16393-4643 was observed by NuSTAR in the 3-79 keV energy band for a net exposure time of 50 ks. We present the results of…
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…
NuSTAR and Swift observations of the very high state in GX 339-4: Weighing the black hole with X-rays
M. L. Parker, J. A. Tomsick, J. A. Kennea +14
We present results from spectral fitting of the very high state of GX~339-4 with NuSTAR and Swift. We use relativistic reflection modelling to measure the spin of the black hole an…
NuSTAR and XMM-Newton observations of 1E1743.1-2843: indications of a neutron star LMXB nature of the compact object
Simone Lotti, Lorenzo Natalucci, Kaya Mori +13
We report on the results of NuSTAR and XMM-Newton observations of the persistent X-ray source 1E1743.1-2843, located in the Galactic Center region. The source was observed between…