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Neil Gehrels–Swift Observatory’s Ultraviolet/Optical Telescope Observations of Small Bodies in the Solar System
Published 2023-01-01“…The <i>Neil–Gehrels Swift Observatory</i> has added extensively to our understanding of small bodies in our solar system through its capabilities to rapidly respond to short-live events such as outbursts and collisions, through its near-ultraviolet coverage, and by its ability to track time-dependent changes through monitoring campaigns. …”
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Ultraviolet and X-ray Light-Curves of Novae Observed by the <i>Neil Gehrels Swift Observatory</i>
Published 2022-12-01Subjects: Get full text
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Swift/UVOT: 18 Years of Long GRB Discoveries and Advances
Published 2023-02-01“…The Neil Gehrels Swift Observatory (<i>Swift</i>) has been in operation for 18 years. …”
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Contributions of the Swift/UV Optical Telescope to the Study of Short Gamma-ray Bursts
Published 2023-12-01“…Before the Neil Gehrels Swift Observatory, we knew little about short-duration Gamma-ray bursts (sGRBs). …”
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Statistical Analysis of Long GRBs’ Prompt Emission and X-Ray Flares: Multivariate Clustering and Correlations
Published 2023-01-01“…The extensive observations done by the X-ray Telescope on board Neil Gehrels Swift Observatory have revealed the presence of late-time flares concurrent with the decaying afterglow emission. …”
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Using Neural Networks to Differentiate Newly Discovered BL Lacertae Objects and FSRQs among the 4FGL Unassociated Sources Employing Gamma-Ray, X-Ray, UV/Optical, and IR Data
Published 2023-01-01“…Among the ∼2157 unassociated sources in the third data release (DR3) of the fourth Fermi catalog, ∼1200 were observed with the Neil Gehrels Swift Observatory pointed instruments. These observations yielded 238 high signal-to-noise ratio X-ray sources within the 95% Fermi uncertainty regions. …”
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The Remarkable Predictive Power of Infrared Data of Blazars
Published 2024-01-01“…In this study we utilized IR data at 3.4 and 4.6 μ m from the Near-Earth Object Wide-field Infrared Survey Explorer Reactivation Mission, spanning 8 yr of observations, X-ray data from the Neil Gehrels Swift Observatory collected throughout the satellite’s lifetime, and 12 years of γ -ray measurements from the Fermi Large Area Telescope’s all-sky survey. …”
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A Swift Response to Newly Discovered, Nearby Transients
Published 2023-05-01“…The Neil Gehrels Swift Observatory has proven to be an extraordinary supernova (SN) observatory. …”
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Limits on Leptonic TeV Emission from the Cygnus Cocoon with Swift-XRT
Published 2023-01-01“…We observed 11 fields in or near the Cygnus Cocoon with the Neil Gehrels Swift Observatory’s X-Ray Telescope (Swift-XRT) totaling 110 ks. …”
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Core-collapse Supernova Explosions in Active Galactic Nucleus Accretion Disks
Published 2023-01-01“…The resulting SNe in the AGN disk are promising transient sources for UV and optical band detection by the Neil Gehrels Swift Observatory, the Ultraviolet Explorer, and wide-field survey telescopes such as the Ultraviolet Transient Astronomy Satellite, the Wide Field Survey Telescope, and the Legacy Survey of Space and Time at the Vera C. …”
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Investigating the Superorbital Modulations in 4U 1909 + 07, IGR J16418-4532, and IGR J16479-4514 with Swift XRT, BAT, and NuSTAR Observations
Published 2023-01-01“…To investigate the mechanisms driving these superorbital modulations, we have analyzed long-term Neil Gehrels Swift Observatory (Swift) Burst Alert Telescope (BAT) observations of three sgHMXBs: 4U 1909 + 07, IGR J16418–4532, and IGR J16479–4514, and constructed their dynamic power spectra and superorbital intensity profiles. …”
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Inferring the Redshift of More than 150 GRBs with a Machine-learning Ensemble Model
Published 2024-01-01“…To overcome this, we estimated GRB redshift via an ensemble-supervised machine-learning (ML) model that uses X-ray afterglows of long-duration GRBs observed by the Neil Gehrels Swift Observatory. The estimated redshifts are strongly correlated (a Pearson coefficient of 0.93) and have an rms error, namely, the square root of the average squared error 〈Δ z ^2 〉, of 0.46 with the observed redshifts showing the reliability of this method. …”
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NICER and Fermi GBM Observations of the First Galactic Ultraluminous X-Ray Pulsar Swift J0243.6+6124
Published 2019“…A new orbital ephemeris is obtained for the binary system using spin frequencies measured with GBM and 15-50 keV fluxes measured with the Neil Gehrels Swift Observatory Burst Alert Telescope to model the system's intrinsic spin-up. …”
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Fierce Feedback in an Obscured, Sub-Eddington State of the Seyfert 1.2 Markarian 817
Published 2024-01-01“…X-ray monitoring of Mrk 817 with the Neil Gehrels Swift Observatory in 2022 revealed that the source flux had declined to a lower level than recorded at any prior point in the then 19 yr mission. …”
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Coronal X-Ray Emission from Nearby, Low-mass, Exoplanet Host Stars Observed by the MUSCLES and Mega-MUSCLES HST Treasury Survey Projects
Published 2023-01-01“…In this paper we present results from X-ray observations of the coronal emission from these stars obtained using the Chandra X-ray Observatory, the XMM-Newton Observatory, and the Neil Gehrels Swift Observatory. The stars effectively sample the coronal activity of low-mass stars over a wide range of masses and ages. …”
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Powerful Radio Sources in the Southern Sky. II. A Swift X-Ray Perspective
Published 2023-01-01“…Here, we present an initial X-ray analysis of 89 G4Jy-3CRE radio sources with archival X-ray observations from the Neil Gehrels Swift Observatory. We reduced a total of 624 Swift observations, for about 0.9 Ms of integrated exposure time. …”
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GRB 221009A: Discovery of an Exceptionally Rare Nearby and Energetic Gamma-Ray Burst
Published 2023-01-01“…We report the discovery of the unusually bright long-duration gamma-ray burst (GRB), GRB 221009A, as observed by the Neil Gehrels Swift Observatory (Swift), Monitor of All-sky X-ray Image, and Neutron Star Interior Composition Explorer Mission. …”
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X-Ray Polarization of BL Lacertae in Outburst
Published 2023-01-01“…During a recent X-ray/ γ -ray outburst, a 287 ks observation (2022 November 27–30) was taken using the Imaging X-ray Polarimetry Explorer (IXPE), together with contemporaneous multiwavelength observations from the Neil Gehrels Swift observatory and XMM-Newton in soft X-rays (0.3–10 keV), NuSTAR in hard X-rays (3–70 keV), and optical polarization from the Calar Alto and Perkins Telescope observatories. …”
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First X-Ray Polarization Measurement Confirms the Low Black Hole Spin in LMC X-3
Published 2023-01-01“…Using accompanying spectroscopic observations by NICER, NuSTAR, and the Neil Gehrels Swift observatories, we confirm previous measurements of the black hole spin via the X-ray continuum method, a ≈ 0.2. …”
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