A5087717837- Stellar, planetary, and galactic studies
- Astronomy and Astrophysical Research
- Astro and Planetary Science
- Astrophysics and Star Formation Studies
- Gamma-ray bursts and supernovae
- Galaxies: Formation, Evolution, Phenomena
- Astronomical Observations and Instrumentation
- Cosmology and Gravitation Theories
- Cyclization and Aryne Chemistry
- Anesthesia and Pain Management
- Radio Astronomy Observations and Technology
- Astrophysics and Cosmic Phenomena
- CCD and CMOS Imaging Sensors
- Geophysics and Gravity Measurements
- Neurological Disease Mechanisms and Treatments
- Inflammatory Bowel Disease
- Nausea and vomiting management
- Spacecraft and Cryogenic Technologies
- Cancer therapeutics and mechanisms
- Complex Systems and Time Series Analysis
- Synthesis and Biological Evaluation
- Airway Management and Intubation Techniques
- Neuroinflammation and Neurodegeneration Mechanisms
- Alzheimer's disease research and treatments
- Cardiac, Anesthesia and Surgical Outcomes
Chinese Academy of Medical Sciences & Peking Union Medical College
2025
Bengbu Medical College
2024
Affiliated Hospital of Qingdao University
2024
Qingdao University
2024
Massachusetts Institute of Technology
1994-2021
Kavli Institute for Particle Astrophysics and Cosmology
2017-2020
ExxonMobil (United States)
2020
Tsinghua University
2016-2019
Yale University
2014-2015
Scripps Research Institute
1998
We present 2,241 exoplanet candidates identified with data from the Transiting Exoplanet Survey Satellite (TESS) during its two-year prime mission. list these in TESS Objects of Interest (TOI) Catalog, which includes both new planet found by and previously-known planets recovered observations. describe process used to identify TOIs investigate characteristics candidates, discuss some notable discoveries. The TOI Catalog an unprecedented number small around nearby bright stars, are...
Abstract The Transiting Exoplanet Survey Satellite (TESS) is the first high-precision full-sky photometric survey in space. We extracted light curves from a magnitude limited set of stars and other stationary luminous objects TESS Full Frame Images using MIT Quick Look Pipeline. Here, we describe techniques used to create curves.
Abstract We present new transit and occultation times for the hot Jupiter WASP-12b. The data are compatible with a constant period derivative: <?CDATA $\dot{P}=-29\pm 3$?> ms yr −1 $P/\dot{P}=3.2\,\mathrm{Myr}$?> . However, it is difficult to tell whether we have observed orbital decay or portion of 14-year apsidal precession cycle. If interpreted as decay, star’s tidal quality parameter ${Q}_{\star }$?> about $2\times {10}^{5}$?> precession, planet’s Love number 0.44 ± 0.10. Orbital appears...
Data from the newly-commissioned \textit{Transiting Exoplanet Survey Satellite} (TESS) has revealed a "hot Earth" around LHS 3844, an M dwarf located 15 pc away. The planet radius of $1.32\pm 0.02$ $R_\oplus$ and orbits star every 11 hours. Although existence atmosphere such strongly irradiated is questionable, bright enough ($I=11.9$, $K=9.1$) for this possibility to be investigated with transit occultation spectroscopy. star's brightness planet's short period will also facilitate...
The use of galaxy clusters as cosmological probes hinges on our ability to measure their masses accurately and with high precision. Hydrostatic mass is one the most common methods for estimating individual clusters, which suffer from biases due departures hydrostatic equilibrium. Using a large, mass-limited sample massive high-resolution hydrodynamical simulation, in this work we show that addition turbulent bulk gas velocities, acceleration introduces estimate clusters. In unrelaxed bias...
Abstract We report the detection of a transiting planet around π Men (HD 39091), using data from Transiting Exoplanet Survey Satellite ( TESS ). The solar-type host star is unusually bright V = 5.7) and was already known to Jovian on highly eccentric, 5.7 yr orbit. newly discovered has size 2.04 ± 0.05 R ⊕ an orbital period 6.27 days. Radial-velocity High-Accuracy Planet Searcher Anglo-Australian Telescope/University College London Echelle Spectrograph archives also displays day periodicity,...
Abstract We present light curves from a magnitude limited set of stars and other stationary luminous objects the TESS Full Frame Images, as reduced by MIT Quick Look Pipeline (QLP). Our cover full two-year Primary Mission include ∼14,770,000 ∼9,600,000 individual curve segments in Southern Northern ecliptic hemispheres, respectively. describe detrending techniques we used to create curves, compare noise properties with theoretical expectations. All QLP are available at MAST High Level...
We present the discovery of a transiting exoplanet candidate in K2 Field-1 with an orbital period 9.1457 hr: K2-22b. The highly variable transit depths, ranging from $\sim$0\% to 1.3\%, are suggestive planet that is disintegrating via emission dusty effluents. characterize host star as M-dwarf $T_{\rm eff} \simeq 3800$ K. have obtained ground-based measurements several 1-m class telescopes and GTC. These observations (1) improve ephemeris; (2) confirm nature depths; (3) indicate variations...
Abstract We present the detection of 1617 new transiting-planet candidates, identified in Transiting Exoplanet Survey Satellite (TESS) full-frame images observed during Primary Mission (Sectors 1–26). These candidates were initially detected by Quick-Look Pipeline (QLP), which extracts image lightcurves for, and searches all stars brighter than, TESS magnitude T = 13.5 mag each sector. However, QLP heavily relies on manual inspection for identification planet limiting vetting efforts to...
We validate a $R_p=2.32\pm 0.24R_\oplus$ planet on close-in orbit ($P=2.260455\pm 0.000041$ days) around K2-28 (EPIC 206318379), metal-rich M4-type dwarf in the Campaign 3 field of K2 mission. Our follow-up observations included multi-band transit from optical to near infrared, low-resolution spectroscopy, and high-resolution adaptive-optics (AO) imaging. perform global fit all observed transits using Gaussian process-based method show that depths passbands adopted for ground-based...
Sound waves from the primordial fluctuations of Universe imprinted in large-scale structure, called baryon acoustic oscillations (BAOs), can be used as standard rulers to measure scale Universe. These have already been detected distribution galaxies. Here we propose BAOs troughs (minima) density field. Based on two sets accurate mock halo catalogues with and without seed initial conditions, demonstrate that BAO signal cannot obtained clustering classical disjoint voids, but is clearly...
The Qatar-2 transiting exoplanet system was recently observed by the {\it Kepler} telescope as part of K2} Campaign 6. photometric time series has one-minute sampling and a precision about 690~ppm, after filtering out artifacts spurious trends. We identify dozens starspot-crossing events, when planet eclipsed relatively dark region stellar photosphere. patterns in sequence these events demonstrate that always transits over same range latitudes, therefore obliquity is less than 10$^\circ$....
The Sunyaev–Zel'dovich effect (SZE) observable-mass (Y–M) scaling relation is a promising technique for obtaining mass estimates large samples of galaxy clusters and holds key to studying the nature dark matter energy. However, cosmological inference based on SZE cluster surveys limited by our incomplete knowledge scatter, evolution in Y–M relation. In this work, we investigate effects mergers using Omega500 high-resolution hydrodynamic simulation. We show that non-thermal pressure...
Abstract NASA’s Transiting Exoplanet Survey Satellite ( TESS ) presents us with an unprecedented volume of space-based photometric observations that must be analyzed in efficient and unbiased manner. With at least ∼1,000,000 new light curves generated every month from full-frame images alone, automated planet candidate identification has become attractive alternative to human vetting. Here we present a deep learning model capable performing triage vetting on candidates. Our is modified...
Cosmic voids found in galaxy surveys are defined based on the distribution redshift space. We show that large scale of space traces fluctuations dark matter density field \delta(k) (in Fourier with \mu being line sight projected k-vector): \delta_v^s(k) = (1 + \beta_v \mu^2) b^s_v \delta(k), a beta factor will be general different than one describing galaxies. Only case could assumed to quasi-local transformations linear (Gaussian) field, gets equal factors \beta_v=\beta_g=f/b_g f growth...
Abstract We report the discovery of EPIC 219388192b, a transiting brown dwarf in 5.3 day orbit around member star Ruprecht 147, oldest nearby open cluster association, which was photometrically monitored by K2 during its Campaign 7. combine time-series data with ground-based adaptive optics imaging and high-resolution spectroscopy to rule out false positive scenarios determine main parameters system. 219388192b has radius <?CDATA ${R}_{{\rm{b}}}=0.937\pm 0.032$?> R Jup mass...
Abstract We report the discovery of HATS-71b, a transiting gas giant planet on <?CDATA $P=3.7955$?> day orbit around $G=15.35$?> mag M3 dwarf star. HATS-71 is coolest M star known to host hot Jupiter. The loss light during transits 4.7%, more than in any other confirmed system. was identified as candidate by ground-based HATSouth transit survey. It using photometry, spectroscopy, and imaging, well space-based photometry from NASA Transiting Exoplanet Survey Satellite mission (TIC 234523599)....
Inflammatory bowel disease (IBD) is believed to be caused by various factors, including abnormalities in susceptibility genes, environmental immune and intestinal bacteria. Proton pump inhibitors (PPIs) are the primary drugs used treat acid-related diseases. They also commonly prescribed patients with IBD. Recent studies have suggested a potential association between use of certain medications, such as PPIs, occurrence progression In this review, we summarize impact PPIs on IBD analyze...
Abstract The microenvironment of the central nervous system is highly complex and plays a crucial role in maintaining function neurons, which influences Alzheimer’s disease (AD) progression. pH value brain critical aspect regulating various physiological processes. However, specific mechanisms this mechanism are not yet fully understood. To better understand relationship between AD, we analyzed frontal lobe AD pathology scores postmortem samples from 368 donors National Human Brain Bank for...
We investigate the necessary methodology to optimally measure baryon acoustic oscillation (BAO) signal from voids, based on galaxy redshift catalogues. To this end, we study dependence of BAO population voids classified by their sizes. find for first time characteristic features correlation function including robust detection BAOs in mock These show an anti-correlation around scale corresponding smallest size sample (the void exclusion effect), and dips at both sides peak, which can be used...
Abstract We report the discovery of TOI-172 b from Transiting Exoplanet Survey Satellite ( TESS ) mission, a massive hot Jupiter transiting slightly evolved G star with 9.48-day orbital period. This is first planet to be confirmed analysis only full frame images, because host was not chosen as two-minute cadence target. From global photometry and follow-up observations carried out by Follow-up Observing Program Working Group, (TIC 29857954) an effective temperature T eff = 5645 ± 50 K, mass...
In an effort to measure the masses of planets discovered by NASA {\it K2} mission, we have conducted precise Doppler observations five stars with transiting planets. We present results a joint analysis these new data and previously published data. The first star, M dwarf known as K2-3 or EPIC~201367065, has three ("b", radius $2.1~R_{\oplus}$; "c", $1.7~R_{\oplus}$; "d", $1.5~R_{\oplus}$). Our leads mass constraints: $M_{b}=8.1^{+2.0}_{-1.9}~M_{\oplus}$ $M_{c}$ < $...
We report on the discovery and characterization of transiting planet K2-39b (EPIC 206247743b). With an orbital period 4.6 days, it is shortest-period orbiting a subgiant star known to date. Such planets are rare, with only handful cases. The reason for this poorly understood, but may reflect differences in occurrence around relatively high-mass stars that have been surveyed, or be result tidal destruction such planets. K2-39 evolved spectroscopically derived stellar radius mass...
We present a novel parameter-free cosmological void finder (dive, Delaunay TrIangulation Void findEr) based on Triangulation (DT), which efficiently computes the empty spheres constrained by discrete set of tracers. define as DT voids, and describe their properties, including universal density profile together with an intrinsic scatter. apply this technique 100 halo catalogues volumes 2.5 h−1Gpc side each, bias number similar to Baryon Oscillation Spectroscopic Survey CMASS luminous red...