output
19922026
most citedMeasurements of Omega and Lambda from 42 High-Redshift Supernovae

18.1k citations

Showing 2015 · astro-ph.HEShow all

31 papers · 2 filters

astro-ph.HE2015★ 27 cited

Spectral and timing evolution of the bright failed outburst of the transient black hole Swift J174510.8-262411

M. Del Santo, T. M. Belloni, J. A. Tomsick +13

We studied time variability and spectral evolution of the Galactic black hole transient Swift J174510.8-262411 during the first phase of its outburst. INTEGRAL and Swift observatio…

astro-ph.HE2015★ 143 cited

Multiwavelength Study of Quiescent States of Mrk 421 with Unprecedented Hard X-Ray Coverage Provided by NuSTAR in 2013

M. Baloković, D. Paneque, G. Madejski +305

We present coordinated multiwavelength observations of the bright, nearby BL Lac object Mrk 421 taken in 2013 January-March, involving GASP-WEBT, Swift, NuSTAR, Fermi-LAT, MAGIC, V…

astro-ph.HE2015★ 35 cited

The NuSTAR view of the non-thermal emission from PSR J0437-4715

Sebastien Guillot, Victoria M. Kaspi, Robert F. Archibald +11

We present a hard X-ray NuSTAR observation of PSR J0437-4715, the nearest millisecond pulsar. The known pulsations at the apparent pulse period ~5.76 ms are detected at energies up…

astro-ph.HE2015★ 10 cited

Investigation of Primordial Black Hole Bursts using Interplanetary Network Gamma-ray Bursts

T. N. Ukwatta, K. Hurley, J. H MacGibbon +22

The detection of a gamma-ray burst (GRB) in the solar neighborhood would have very important implications for GRB phenomenology. The leading theories for cosmological GRBs would no…

astro-ph.HE2015★ 20 cited

Chandra Observations of Eight Sources Discovered by INTEGRAL

John A. Tomsick, Roman Krivonos, Qinan Wang +5

We report on 0.3-10 keV observations with the Chandra X-ray Observatory of eight hard X-ray sources discovered within 8 degrees of the Galactic plane by the INTEGRAL satellite. The…

astro-ph.HE2015★ 47 cited

The NuSTAR Extragalactic Surveys: Initial Results and Catalog from the Extended Chandra Deep Field South

J. R. Mullaney, A. Del-Moro, J. Aird +33

We present initial results and the source catalog from the NuSTAR survey of the Extended Chandra Deep Field South (hereafter, ECDFS) - currently the deepest contiguous component of…

astro-ph.HE2015★ 74 cited

The NuSTAR Extragalactic Surveys: Overview and Catalog from the COSMOS Field

F. Civano, R. C. Hickox, S. Puccetti +28

To provide the census of the sources contributing to the X-ray background peak above 10 keV, NuSTAR is performing extragalactic surveys using a three-tier "wedding cake" approach.…

astro-ph.HE2015★ 58 cited

The NuSTAR Extragalactic Surveys: First Direct Measurements of the >10 keV X-Ray Luminosity Function for Active Galactic Nuclei at z>0.1

J. Aird, D. M. Alexander, D. R. Ballantyne +34

We present the first direct measurements of the rest-frame 10-40 keV X-ray luminosity function (XLF) of Active Galactic Nuclei (AGNs) based on a sample of 94 sources at 0.1 < z <3,…

astro-ph.HE2015★ 58 cited

The NuSTAR view of reflection and absorption in NGC 7582

E. Rivers, M. Baloković, P. Arévalo +14

NGC 7582 is a well-studied X-ray bright Seyfert 2 with moderately heavy (~cm), highly variable absorption and strong reflection spectral fea…

astro-ph.HE2015★ 81 cited

The NuSTAR Extragalactic Surveys: The Number Counts of Active Galactic Nuclei and the Resolved Fraction of the Cosmic X-ray Background

F. A. Harrison, J. Aird, F. Civano +41

We present the 3-8 keV and 8-24 keV number counts of active galactic nuclei (AGN) identified in the NuSTAR extragalactic surveys. NuSTAR has now resolved 33-39% of the X-ray backgr…

astro-ph.HE2015★ 49 cited

NuSTAR and XMM-Newton Observations of the Hard X-Ray Spectrum of Centaurus A

F. Fuerst, C. Mueller, K. K. Madsen +28

We present simultaneous XMM-Newton and NuSTAR observations spanning 3-78 keV of the nearest radio galaxy, Centaurus A (Cen A). The accretion geometry around the central engine in C…

astro-ph.HE2015★ 2 cited

NuSTAR Hard X-ray Survey of the Galactic Center Region I: Hard X-ray Morphology and Spectroscopy of the Diffuse Emission

Kaya Mori, Charles J. Hailey, Roman Krivonos +35

We present the first sub-arcminute images of the Galactic Center above 10 keV, obtained with NuSTAR. NuSTAR resolves the hard X-ray source IGR J17456-2901 into non-thermal X-ray fi…

astro-ph.HE2015★ 52 cited

The hard X-ray emission of the luminous infrared galaxy NGC 6240 as observed by NuSTAR

S. Puccetti, A. Comastri, F. E. Bauer +23

We present a broad-band (~0.3-70 keV) spectral and temporal analysis of NuSTAR observations of the luminous infrared galaxy NGC 6240, combined with archival Chandra, XMM-Newton and…

astro-ph.HE2015★ 34 cited

Extremes of the jet-accretion power relation of blazars, as explored by NuSTAR

T. Sbarrato, G. Ghisellini, G. Tagliaferri +9

Hard X-ray observations are crucial to study the non-thermal jet emission from high-redshift, powerful blazars. We observed two bright z>2 flat spectrum radio quasars (FSRQs) in ha…

astro-ph.HE2015★ 71 cited

First NuSTAR Observations of Mrk 501 within a Radio to TeV Multi-Instrument Campaign

A. Furniss, K. Noda, S. Boggs +273

We report on simultaneous broadband observations of the TeV-emitting blazar Markarian 501 between 1 April and 10 August 2013, including the first detailed characterization of the s…

astro-ph.HE2015★ 66 cited

NuSTAR Observations of the Compton-thick Active Galactic Nucleus and Ultraluminous X-ray Source Candidate in NGC 5643

A. Annuar, P. Gandhi, D. M. Alexander +22

We present two NuSTAR observations of the local Seyfert 2 active galactic nucleus (AGN) and an ultraluminous X-ray source (ULX) candidate in NGC 5643. Together with archival data f…

astro-ph.HE2015★ 37 cited

A Soft X-Ray Spectral Episode for the Clocked Burster, GS 1826-24 as Measured by Swift and NuSTAR

J. Chenevez, D. K. Galloway, J. J. M. in 't Zand +12

We report on NuSTAR and Swift observations of a soft state of the neutron star low-mass X-ray binary GS 1826-24, commonly known as the "clocked" burster. The transition to the soft…

astro-ph.HE2015★ 14 cited

Optical and Near-Infrared Spectroscopy of the Black Hole Swift J1753.5-0127

Farid Rahoui, John A. Tomsick, Mickael Coriat +7

We report on a multiwavelength observational campaign of the black hole X-ray binary Swift J1753.5-0127 that consists of an ESO/X-shooter spectrum supported by contemporaneous Swif…

astro-ph.HE2015★ 69 cited

Multi-wavelength Observations of the Binary System PSR B1259-63/LS~2883 around the 2014 Periastron Passage

M. Chernyakova, A. Neronov, B. van Soelen +16

We report on the results of the extensive multi-wavelength campaign from optical to GeV gamma-rays of the 2014 periastron passage of PSR B1259-63, which is a unique high-mass gamma…

astro-ph.HE2015★ 55 cited

Hard X-ray Morphological and Spectral Studies of The Galactic Center Molecular Cloud Sgr B2: Constraining Past Sgr A* Flaring Activity

Shuo Zhang, Charles J. Hailey, Kaya Mori +15

Galactic Center (GC) molecular cloud Sgr B2 is the best manifestation of an X-ray reflection nebula (XRN) reprocessing a past giant outburst from the supermassive black hole Sgr A*…

astro-ph.HE2015★ 46 cited

Characterizing X-ray and Radio emission in the Black Hole X-Ray Binary V404 Cygni during Quiescence

Vikram Rana, Alan Loh, Stephane Corbel +17

We present results from multi-wavelength simultaneous X-ray and radio observations of the black hole X-ray binary V404 Cyg in quiescence. Our coverage with NuSTAR provides the very…

astro-ph.HE2015★ 31 cited

NuSTAR observations of the powerful radio-galaxy Cygnus A

Christopher S. Reynolds, Anne M. Lohfink, Patrick M. Ogle +17

We present NuSTAR observations of the powerful radio galaxy Cygnus A, focusing on the central absorbed active galactic nucleus (AGN). Cygnus A is embedded in a cool-core galaxy clu…

astro-ph.HE2015★ 18 cited

The Accreting Black Hole Swift J1753.5-0127 from Radio to Hard X-Ray

John A. Tomsick, Farid Rahoui, Mari Kolehmainen +19

(abridged) We report on multi-wavelength measurements of Swift J1753.5-0127 in the hard state at L=2.7e36 erg/s (assuming d=3 kpc) in 2014. The radio emission is optically thick sy…

astro-ph.HE2015★ 75 cited

NuSTAR Reveals Extreme Absorption in z < 0.5 Type 2 Quasars

G. B. Lansbury, P. Gandhi, D. M. Alexander +27

The intrinsic column density (NH) distribution of quasars is poorly known. At the high obscuration end of the quasar population and for redshifts z<1, the X-ray spectra can only be…