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A giant planet undergoing extreme-ultraviolet irradiation by its hot massive-star host
TLDR
Observations of the bright star HD 195689 are reported, which reveal a close-in (orbital period of about 1.48 days) transiting giant planet, KELT-9b, which is as hot as stars of stellar type K4 and receives 700 times more extreme-ultraviolet radiation than WASP-33b.
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REVERBERATION MAPPING RESULTS FOR FIVE SEYFERT 1 GALAXIES
We present the results from a detailed analysis of photometric and spectrophotometric data on five Seyfert 1 galaxies observed as a part of a recent reverberation mapping program. The data were…
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A REVERBERATION LAG FOR THE HIGH-IONIZATION COMPONENT OF THE BROAD-LINE REGION IN THE NARROW-LINE SEYFERT 1 Mrk 335
We present the first results from a detailed analysis of photometric and spectrophotometric data on the narrow-line Seyfert 1 (NLS1) galaxy Mrk 335, collected over a 120 day span in the fall of 2010.…
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THE TRANSIT LIGHT CURVE PROJECT. XI. SUBMILLIMAGNITUDE PHOTOMETRY OF TWO TRANSITS OF THE BLOATED PLANET WASP-4b
We present photometry of two transits of the giant planet WASP-4b with a photometric precision of 400–800 parts per million and a time sampling of 25–40 s. The two midtransit times are determined to…
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KELT-1b: A STRONGLY IRRADIATED, HIGHLY INFLATED, SHORT PERIOD, 27 JUPITER-MASS COMPANION TRANSITING A MID-F STAR
We present the discovery of KELT-1b, the first transiting low-mass companion from the wide-field Kilodegree Extremely Little Telescope-North (KELT-North) transit survey. A joint analysis of the…
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Reverberation Mapping of Optical Emission Lines in Five Active Galaxies
We present the first results from an optical reverberation mapping campaign executed in 2014 targeting the active galactic nuclei (AGNs) MCG+08-11-011, NGC 2617, NGC 4051, 3C 382, and Mrk 374. Our…
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Predicting the Yields of Photometric Surveys for Transiting Extrasolar Planets
We develop a method for predicting the yield of transiting planets from a photometric survey given the parameters of the survey (nights observed, bandpass, exposure time, telescope aperture,…
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Multiwavelength Transit Observations of the Candidate Disintegrating Planetesimals Orbiting WD 1145+017
We present multiwavelength, ground-based follow-up photometry of the white dwarf WD 1145+017, which has recently been suggested to be orbited by up to six or more short-period, low-mass,…
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A Framework for Prioritizing the TESS Planetary Candidates Most Amenable to Atmospheric Characterization
TLDR
A set of two straightforward analytic metrics, quantifying the expected signal-to-noise in transmission and thermal emission spectroscopy for a given planet, are presented, that will allow the top atmospheric characterization targets to be readily identified among the TESS planet candidates.
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THE STRUCTURE OF THE BROAD-LINE REGION IN ACTIVE GALACTIC NUCLEI. I. RECONSTRUCTED VELOCITY-DELAY MAPS
We present velocity-resolved reverberation results for five active galactic nuclei. We recovered velocity-delay maps using the maximum entropy method for four objects: Mrk 335, Mrk 1501, 3C 120, and…
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