HSTCosmicrays: A Python Package for Analyzing Cosmic Rays in HST Calibration Data

Using Cosmic Rays detected by HST as Geophysical Markers I: Detection and Characterization of Cosmic Rays

The Hubble Space Telescope (HST) has been operational for over 30 years and throughout that time it has been bombarded by high energy charged particles colloquially referred to as cosmic rays. In this paper, we present a comprehensive study of more than 1.2 billion cosmic rays observed with HST using a custom written python package, \texttt{HSTcosmicrays}, that is available to the astronomical community. We analyzed $75,908$ dark calibration files taken as part of routine calibration programs for five different CCD imagers with operational coverage of Solar Cycle 23 and 24. We observe the expe…

HST/STIS数据的重心校正

Barycentric Corrections for HST/STIS Data

介绍新Python工具stistools.barycentric_correction，用于计算HST/STIS观测的重心时间校正，替代旧IRAF函数，利用astropy和JPL Horizons提高精度。

PandExo: A Community Tool for Transiting Exoplanet Science with JWST & HST

As we approach the James Webb Space Telescope (JWST) era, several studies have emerged that aim to: 1) characterize how the instruments will perform and 2) determine what atmospheric spectral features could theoretically be detected using transmission and emission spectroscopy. To some degree, all these studies have relied on modeling of JWST's theoretical instrument noise. With under two years left until launch, it is imperative that the exoplanet community begins to digest and integrate these studies into their observing plans, as well as think about how to leverage the Hubble Space Telescop…

ExoTiC-ISM: A Python package for marginalised exoplanet transit parameters across a grid of systematic instrument models

To address the the problem of calibration of instrument systematics in transit light curves, we present the Python package ExoTiC-ISM. Transit spectroscopy can reveal many different chemical components in exoplanet atmospheres, but such results depend on well-calibrated transit light curve observations. Each transit data set will contain instrument systematics that depend on the instrument used and will need to be calibrated out with an instrument systematic model. The proposed solution in Wakeford et al. (2016) (arXiv:1601.02587 [astro-ph.EP]) is to use a marginalisation across a grid of syst…

HST/FOC紫外成像偏振档案中活动星系核的遗忘宝藏。I. 针对NGC~1068的流水线与基准测试及对IC~5063的探索

Forgotten treasures in the HST/FOC UV imaging polarimetric archives of active galactic nuclei. I. Pipeline and benchmarking against NGC~1068 and exploring IC~5063

本研究开发了统一处理HST/FOC紫外偏振数据的Python流水线，以NGC~1068验证并拓展了偏振图，首次呈现IC~5063的光学偏振图，揭示AGN外流与星际介质相互作用。