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Joint gravitational-wave (GW) and $\gamma$-ray burst (GRB) observations are among the best prospects for standard siren cosmology. However, the strong selection effect for the coincident GRB detection, which is possible only for sources…

High Energy Astrophysical Phenomena · Physics 2024-12-12 Michele Mancarella , Francesco Iacovelli , Stefano Foffa , Niccolò Muttoni , Michele Maggiore

A robust and extended characterization of the point spread function (PSF) is crucial to extract the photometric information produced by deep imaging surveys. Here, we present the extended PSFs of the Sloan Digital Sky Survey (SDSS), one of…

Instrumentation and Methods for Astrophysics · Physics 2020-01-28 Raúl Infante-Sainz , Ignacio Trujillo , Javier Román

In this work, we perform the re-calibration of PS1 photometry by correcting for position-dependent systematic errors using the spectroscopy-based Stellar Color Regression method (SCR), the photometry-based SCR method (SCR$'$), and the Gaia…

Instrumentation and Methods for Astrophysics · Physics 2023-08-14 Kai Xiao , Haibo Yuan , Bowen Huang , Ruoyi Zhang , Lin Yang , Shuai Xu

Numerous datasets and benchmarks exist to assess and compare Simultaneous Localization and Mapping (SLAM) algorithms. Nevertheless, their precision must follow the rate at which SLAM algorithms improved in recent years. Moreover, current…

Hubble Space Telescope's (HST) Space Telescope Imaging Spectrograph (STIS) targeted 556 stars in a long-running program called Next Generation Spectral Library (NGSL) via proposals GO9088, GO9786, GO10222, and GO13776. Exposures through…

Solar and Stellar Astrophysics · Physics 2023-06-28 Tathagata Pal , Islam Khan , Guy Worthey , Michael D. Gregg , David R. Silva

WFIRST will conduct a coronagraphic program of characterizing the atmospheres of planets around bright nearby stars. When observed with the WFIRST Wide Field Camera, these stars will saturate the detector and produce very strong diffraction…

Instrumentation and Methods for Astrophysics · Physics 2018-02-08 Peter Melchior , David Spergel , Arianna Lanz

Transit photometry is perhaps the most successful method for detecting exoplanets to date. However, a substantial amount of signal processing is needed since the dip in the signal detected, an indication that there is a planet in transit,…

Earth and Planetary Astrophysics · Physics 2021-07-01 Ma. Janelle Manuel , Nathaniel Hermosa

We study how rotation affects observable amplitudes of high-order g- and mixed r/g-modes and examine prospects for their detection and identification. Our formalism, which is described in some detail, relies on a nonadiabatic generalization…

Astrophysics · Physics 2007-05-23 J. Daszynska-Daszkiewicz , W. A. Dziembowski , A. A. Pamyatnykh

Infrared observations of stellar orbits about Sgr A* probe the mass distribution in the inner parsec of the Galaxy and provide definitive evidence for the existence of a massive black hole. However, the infrared astrometry is relative and…

Astrophysics of Galaxies · Physics 2023-08-08 Jeremy Darling , Jennie Paine , Mark J. Reid , Karl M. Menten , Shoko Sakai , Andrea Ghez

The extragalactic distance scale is fundamental to our understanding of astrophysics and cosmology. In recent years, the surface brightness fluctuation (SBF) method, applied in the near-IR, has proven especially powerful for measuring…

Cosmology and Nongalactic Astrophysics · Physics 2023-07-17 John P. Blakeslee , Michele Cantiello , Michael J. Hudson , Laura Ferrarese , Nandini Hazra , Joseph B. Jensen , Eric W. Peng , Gabriella Raimondo

(Abridged) Long Gamma-Ray Bursts (GRBs) offer a promising tool to trace the cosmic history of star formation, especially at high redshift where conventional methods are known to suffer from intrinsic biases. Previous studies of GRB host…

Astrophysics of Galaxies · Physics 2022-10-05 B. Schneider , E. Le Floc'h , M. Arabsalmani , S. D. Vergani , J. T. Palmerio

[ABRIDGED] In this study, we set out to a) demonstrate the sensitivity to <4 R_E transiting planets with periods of a few days around our program stars, and b) improve our knowledge of some astrophysical properties(e.g., activity, rotation)…

Earth and Planetary Astrophysics · Physics 2015-06-05 P. Giacobbe , M. Damasso , A. Sozzetti , G. Toso , M. Perdoncin , P. Calcidese , A. Bernagozzi , E. Bertolini , M. G. Lattanzi , R. L. Smart

Radial differential rotation is an important parameter for stellar dynamo theory and for understanding angular momentum transport. We investigate the potential of using a large number of similar stars simultaneously to constrain their…

Solar and Stellar Astrophysics · Physics 2016-02-03 Hannah Schunker , Jesper Schou , Warrick Ball , Martin Bo Nielsen , Laurent Gizon

In this work, we research and evaluate multiple pose-graph fusion strategies for vehicle localization. We focus on fusing a single absolute localization system, i.e. automotive-grade Global Navigation Satellite System (GNSS) at 1 Hertz,…

Signal Processing · Electrical Eng. & Systems 2018-03-22 Anweshan Das , Gijs Dubbelman

We demonstrate that for data recorded with a solar telescope that uses adaptive optics and/or post-processing to compensate for many low- and high-order aberrations, the RMS granulation contrast is directly proportional to the Strehl ratio…

Instrumentation and Methods for Astrophysics · Physics 2019-06-12 Goran Scharmer , Mats Lofdahl , Guus Sliepen , Jaime de la Cruz Rodriguez

In various applications of land vehicle navigation and automatic guidance systems, Global Navigation Satellite System/Inertial Measurement Unit (GNSS/IMU) positioning performance crucially depends on the attitude determination accuracy…

Systems and Control · Computer Science 2015-05-27 Vasiliy M. Tereshkov

Global Navigation Satellite System/Inertial Navigation System (GNSS/INS)/Vision integration based on factor graph optimization (FGO) has recently attracted extensive attention in navigation and robotics community. Integrity monitoring (IM)…

Robotics · Computer Science 2024-10-31 Yunong Tian , Tuan Li , Haitao Jiang , Zhipeng Wang , Chuang Shi

A key challenge facing reconfigurable intelligent surfaces (RISs) is channel state information acquisition. Passive RISs cannot generate pilot signals or process data, making rapid temporal changes in the channel problematic. Additionally,…

Signal Processing · Electrical Eng. & Systems 2025-08-15 Amy S. Inwood , Peter J. Smith , Philippa A. Martin , Graeme K. Woodward

Over the last few years increasing consideration has been given to the study of Laser Guide Stars (LGS) for the measurement of the disturbance introduced by the atmosphere in optical and near-infrared astronomical observations from the…

Instrumentation and Methods for Astrophysics · Physics 2015-05-13 L. Schreiber , I. Foppiani , C. Robert , E. Diolaiti , J. -M. Conan , M. Lombini
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