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The Complete Light-curve Sample of Spectroscopically Confirmed SNe Ia from Pan-STARRS1 and Cosmological Constraints from the Combined Pantheon Sample Open
We present optical light curves, redshifts, and classifications for spectroscopically confirmed Type Ia supernovae (SNe Ia) discovered by the Pan-STARRS1 (PS1) Medium Deep Survey. We detail improvements to the PS1 SN photometry, astrometry…
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The Electromagnetic Counterpart of the Binary Neutron Star Merger LIGO/Virgo GW170817. II. UV, Optical, and Near-infrared Light Curves and Comparison to Kilonova Models Open
We present UV, optical, and near-infrared (NIR) photometry of the first electromagnetic counterpart to a gravitational wave source from Advanced Laser Interferometer Gravitational-wave Observatory (LIGO)/Virgo, the binary neutron star merg…
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Light curves of the neutron star merger GW170817/SSS17a: Implications for r-process nucleosynthesis Open
Photons from a gravitational wave event Two neutron stars merging together generate a gravitational wave signal and have also been predicted to emit electromagnetic radiation. When the gravitational wave event GW170817 was detected, astron…
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Pulsational Pair-instability Supernovae Open
The final evolution of stars in the mass range 70–140 is explored. Depending upon their mass loss history and rotation rates, these stars will end their lives as pulsational pair-instability supernovae (PPISN) producing a great variety of …
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The Pantheon+ Analysis: The Full Data Set and Light-curve Release Open
Here we present 1701 light curves of 1550 unique, spectroscopically confirmed Type Ia supernovae (SNe Ia) that will be used to infer cosmological parameters as part of the Pantheon+ SN analysis and the Supernovae and H 0 for the Equation o…
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The GALAH+ survey: Third data release Open
The ensemble of chemical element abundance measurements for stars, along with precision distances and orbit properties, provides high-dimensional data to study the evolution of the Milky Way. With this third data release of the Galactic Ar…
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Kilonovae Open
The mergers of double neutron star (NS–NS) and black hole (BH)–NS binaries are promising gravitational wave (GW) sources for Advanced LIGO and future GW detectors. The neutron-rich ejecta from such merger events undergoes rapid neutron cap…
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The ASAS-SN catalogue of variable stars I: The Serendipitous Survey Open
The All-Sky Automated Survey for Supernovae (ASAS-SN) is the first optical survey to routinely monitor the whole sky with a cadence of similar to 2-3 d down to V less than or similar to 17 mag. ASAS-SN has monitored the whole sky since 201…
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Constraints on Earth-mass primordial black holes from OGLE 5-year microlensing events Open
We constrain the abundance of primordial black holes (PBH) using 2622\nmicrolensing events obtained from 5-years observations of stars in the Galactic\nbulge by the Optical Gravitational Lensing Experiment (OGLE). The majority of\nmicrolen…
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Tidal Disruption Events Open
The concept of stars being tidally ripped apart and consumed by a massive black hole (MBH) lurking in the center of a galaxy first captivated theorists in the late 1970s. The observational evidence for these rare but illuminating phenomena…
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PHYSICS OF ECLIPSING BINARIES. II. TOWARD THE INCREASED MODEL FIDELITY Open
The precision of photometric and spectroscopic observations has been systematically improved in the last decade, mostly thanks to space-borne photometric missions and ground-based spectrographs dedicated to finding exoplanets. The field of…
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Bolometric light curves and explosion parameters of 38 stripped-envelope core-collapse supernovae Open
Literature data are collated for 38 stripped-envelope core-collapse supernovae (SE SNe; i.e. SNe IIb, Ib, Ic and Ic-BL) that have good light-curve coverage in more than one optical band. Using bolometric corrections derived in previous wor…
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RADIOACTIVITY AND THERMALIZATION IN THE EJECTA OF COMPACT OBJECT MERGERS AND THEIR IMPACT ON KILONOVA LIGHT CURVES Open
One promising electromagnetic signature of compact object mergers are kilonovae: approximately isotropic radioactively powered transients that peak days to weeks post-merger. Key uncertainties in kilonova modeling include the emission prof…
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starry: Analytic Occultation Light Curves Open
We derive analytic, closed form, numerically stable solutions for the total flux received from a spherical planet, moon, or star during an occultation if the specific intensity map of the body is expressed as a sum of spherical harmonics. …
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The TESS Objects of Interest Catalog from the TESS Prime Mission Open
We present 2,241 exoplanet candidates identified with data from the\nTransiting Exoplanet Survey Satellite (TESS) during its two-year prime mission.\nWe list these candidates in the TESS Objects of Interest (TOI) Catalog, which\nincludes b…
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A systematic search for changing-look quasars in SDSS Open
We present a systematic search for changing-look quasars based on repeat photometry from Sloan Digital Sky Survey (SDSS) and Pan-STARRS1, along with repeat spectra from SDSS and SDSS-III Baryon Oscillation Spectroscopic Survey. Objects wit…
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Supergiant pulses from extragalactic neutron stars Open
We consider radio bursts that originate from extragalactic neutron stars (NSs) by addressing three questions about source distances. What are the physical limitations on coherent radiation at GHz frequencies? Do they permit detection at co…
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Discovery of pulsations from NGC 300 ULX1 and its fast period evolution Open
The supernova impostor SN 2010da located in the nearby galaxy NGC 300, later identified as a likely supergiant B[e] high-mass X-ray binary, was simultaneously observed by NuSTAR and XMM–Newton between 2016 December 16 and 20, over a total …
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Planet Hunters IX. KIC 8462852 – where's the flux? Open
Over the duration of the Kepler mission, KIC 8462852 was observed to undergo irregularly shaped, aperiodic dips in flux of up to ~20 per cent. The dipping activity can last for between 5 and 80 d.We characterize the object with high-resolu…
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False periodicities in quasar time-domain surveys Open
There have recently been several reports of apparently periodic variations in the light curves of quasars, e.g. PG 1302−102 by Graham et al. Any quasar showing periodic oscillations in brightness would be a strong candidate to be a close b…
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A burst in a wind bubble and the impact on baryonic ejecta: high-energy gamma-ray flashes and afterglows from fast radio bursts and pulsar-driven supernova remnants Open
Tenuous wind bubbles, which are formed by the spin-down activity of central compact remnants, are relevant in some models of fast radio bursts (FRBs) and superluminous supernovae (SNe). We study their high-energy signatures, focusing on th…
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The Magnetar Model for Type I Superluminous Supernovae. I. Bayesian Analysis of the Full Multicolor Light-curve Sample with MOSFiT Open
We use the new Modular Open Source Fitter for Transients to model 38 hydrogen-poor superluminous supernovae (SLSNe). We fit their multicolor light curves with a magnetar spin-down model and present posterior distributions of magnetar and e…
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An Analysis of the Shapes of Interstellar Extinction Curves. VII. Milky Way Spectrophotometric Optical-through-ultraviolet Extinction and Its R-dependence* Open
We produce a set of 72 NIR-through-UV extinction curves by combining new Hubble Space Telescope /STIS optical spectrophotometry with existing International Ultraviolet Explorer spectrophotometry (yielding gapless coverage from 1150 to 1000…
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A global look at X-ray time lags in Seyfert galaxies Open
X-ray reverberation, where light-travel time delays map out the compact geometry around the inner accretion flow in supermassive black holes, has been discovered in several of the brightest, most variable and well-known Seyfert galaxies. I…
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They are small worlds after all: revised properties of<i>Kepler</i>M dwarf stars and their planets Open
We classified the reddest (r − J > 2.2) stars observed by the NASA Kepler mission into main-sequence dwarf or evolved giant stars and determined the properties of 4216 M dwarfs based on a comparison of available photometry with that of nea…
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Impact of ejecta morphology and composition on the electromagnetic signatures of neutron star mergers Open
The electromagnetic transients accompanying compact binary mergers (γ-ray bursts, afterglows and ‘macronovae’) are crucial to pinpoint the sky location of gravitational wave sources. Macronovae are caused by the radioactivity from freshly …
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Unifying Type II Supernova Light Curves with Dense Circumstellar Material Open
A longstanding problem in the study of supernovae (SNe) has been the relationship between the Type IIP and Type IIL subclasses. Whether they come from distinct progenitors or they are from similar stars with some property that smoothly tra…
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WASP-121 b: a hot Jupiter close to tidal disruption transiting an active F star Open
We present the discovery by the WASP-South survey, in close collaboration\nwith the Euler and TRAPPIST telescopes, of WASP-121 b, a new remarkable\nshort-period transiting hot Jupiter, whose planetary nature has been\nstatistically validat…
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A Decline in the X-Ray through Radio Emission from GW170817 Continues to Support an Off-axis Structured Jet Open
We present new observations of the binary neutron star merger GW170817 at Δ t ≈ 220–290 days post-merger, at radio (Karl G. Jansky Very Large Array; VLA), X-ray ( Chandra X-ray Observatory ), and optical ( Hubble Space Telescope ; HST ) wa…
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The Neptune-Sized Circumbinary Planet Kepler-38B Open
We discuss the discovery and characterization of the circumbinary planet Kepler-38b. The stellar binary is single-lined, with a period of 18.8 days, and consists of a moderately evolved main-sequence star (M-A = 0.949+/-0.059 M-circle dot …