Search Results - "Doty, John P."
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TOI-1695 b: A Water World Orbiting an Early-M Dwarf in the Planet Radius Valley
Published in The Astronomical journal (01-04-2023)“…Abstract Characterizing the bulk compositions of transiting exoplanets within the M dwarf radius valley offers a unique means to establish whether the radius…”
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Early Results from the HUMDRUM Survey: A Small, Earth-mass Planet Orbits TOI-1450A
Published in The Astronomical journal (01-08-2024)“…Abstract M-dwarf stars provide us with an ideal opportunity to study nearby small planets. The HUnting for M Dwarf Rocky planets Using MAROON-X (HUMDRUM)…”
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In-orbit performance of the soft X-ray imaging system aboard Hitomi (ASTRO-H)
Published in Publications of the Astronomical Society of Japan (01-03-2018)“…Abstract We describe the in-orbit performance of the soft X-ray imaging system consisting of the Soft X-ray Telescope and the Soft X-ray Imager aboard Hitomi…”
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Development of the analog ASIC for multi-channel readout X-ray CCD camera
Published in Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment (01-03-2011)“…We report on the performance of an analog application-specific integrated circuit (ASIC) developed aiming for the front-end electronics of the X-ray CCD camera…”
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Single event effect characterization of the mixed-signal ASIC developed for CCD camera in space use
Published in Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment (01-12-2013)“…We present the single event effect (SEE) tolerance of a mixed-signal application-specific integrated circuit (ASIC) developed for a charge-coupled device…”
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TESS Eclipsing Binary Stars. I. Short-cadence Observations of 4584 Eclipsing Binaries in Sectors 1–26
Published in The Astrophysical journal. Supplement series (01-01-2022)“…In this paper we present a catalog of 4584 eclipsing binaries observed during the first two years (26 sectors) of the TESS survey. We discuss selection…”
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NICER and Fermi GBM Observations of the First Galactic Ultraluminous X-Ray Pulsar Swift J0243.6+6124
Published in The Astrophysical journal (06-08-2018)“…Swift J0243.6+6124 is a newly discovered Galactic Be/X-ray binary, revealed in late 2017 September in a giant outburst with a peak luminosity of 2 × 1039(d/7…”
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Early-time Light Curves of Type Ia Supernovae Observed with TESS
Published in The Astrophysical journal (01-02-2021)“…Abstract We present the early-time light curves of Type Ia supernovae (SNe Ia) observed in the first six sectors of Transiting Exoplanet Survey Satellite…”
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HD 213885b: a transiting 1-d-period super-Earth with an Earth-like composition around a bright ( V = 7.9) star unveiled by TESS
Published in Monthly notices of the Royal Astronomical Society (01-01-2020)“…ABSTRACT We report the discovery of the 1.008-d, ultrashort period (USP) super-Earth HD 213885b (TOI-141b) orbiting the bright (V = 7.9) star HD 213885…”
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Development of low-noise high-speed analog ASIC for X-ray CCD cameras and wide-band X-ray imaging sensors
Published in Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment (21-09-2016)“…We report on the development and performance evaluation of the mixed-signal Application Specific Integrated Circuit (ASIC) developed for the signal processing…”
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Performance of an Analog ASIC Developed for X-ray CCD Camera Readout System Onboard Astronomical Satellite
Published in IEEE transactions on nuclear science (01-06-2009)“…We present the performance and radiation tolerance of an analog application-specified integrated circuit (ASIC) developed for the engineering model of X-ray…”
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An Optically Dark GRB Observed by HETE-2: GRB 051022
Published in Publications of the Astronomical Society of Japan (25-08-2006)“…GRB 051022 was detected at 13:07:58 on 2005 October 22 UT by HETE-2. The location of GRB 051022 was determined immediately by the flight localization system…”
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A Comprehensive Study of Short Bursts from SGR1806 $-$ 20 and SGR1900 $+$ 14 Detected by HETE-2
Published in Publications of the Astronomical Society of Japan (25-06-2007)“…Temporal and spectral studies of short bursts ( $\lesssim$ a few hundred milliseconds) are presented for the soft gamma repeaters (SGRs) 1806 $-$ 20 and 1900…”
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HETE-2 Localization and Observations of the Gamma-Ray Burst GRB 020813
Published in Publications of the Astronomical Society of Japan (25-12-2005)“…A bright, long gamma-ray burst (GRB) was detected and localized by the instruments on board the High Energy Transient Explorer 2 satellite (HETE-2) at…”
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Gliese 12 b: A Temperate Earth-sized Planet at 12 pc Ideal for Atmospheric Transmission Spectroscopy
Published in Astrophysical journal. Letters (01-06-2024)“…Abstract Recent discoveries of Earth-sized planets transiting nearby M dwarfs have made it possible to characterize the atmospheres of terrestrial planets via…”
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TOI-2285b: A 1.7 Earth-radius planet near the habitable zone around a nearby M dwarf
Published in Publications of the Astronomical Society of Japan (01-02-2022)“…Abstract We report the discovery of TOI-2285b, a sub-Neptune-sized planet transiting a nearby (42 pc) M dwarf with a period of 27.3 d. We identified the…”
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Development of X-ray CCD camera system with high readout rate using ASIC
Published in Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment (21-10-2009)“…We report on the development of an X-ray charge-coupled device (CCD) camera system with high readout rate using application-specific integrated circuit (ASIC)…”
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Spectral-Lag Relations in GRB Pulses Detected with HETE-2
Published in Publications of the Astronomical Society of Japan (25-04-2010)“…Using a pulse-fit method, we investigated the spectral lags between the traditional gamma-ray band (50–400 keV) and the X-ray band (6–25 keV) for 8 GRBs with…”
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Development of a built-in analog-to-digital converter for a X-ray astronomy detector with the SOI CMOS technology
Published in 2011 IEEE Nuclear Science Symposium Conference Record (01-10-2011)“…We have been developing a novel X-ray astronomy detector combined with a CMOS readout circuit on a monolithic chip using the SOI CMOS technology. As a part of…”
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Conference Proceeding -
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TOI-1695 b: A Water World Orbiting an Early M Dwarf in the Planet Radius Valley
Published 13-02-2023“…Characterizing the bulk compositions of transiting exoplanets within the M dwarf radius valley offers a unique means to establish whether the radius valley…”
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Journal Article