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相关论文: A cookbook for the XMMSAS

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The ESA's X-ray Multi-Mirror Mission (XMM-Newton) created a new, high quality version of the XMM-Newton serendipitous source catalogue, 4XMM-DR9, which provides a wealth of information for observed sources. The 4XMM-DR9 catalogue is…

天体物理仪器与方法 · 物理学 2021-04-28 Yanxia Zhang , Yongheng Zhao , Xue-Bing Wu

Space weather forecasting is critical for mitigating radiation risks in space exploration and protecting Earth-based technologies from geomagnetic disturbances. This paper presents the development of a Machine Learning (ML)- ready data…

太阳与恒星天体物理 · 物理学 2025-02-13 Maher A Dayeh , Michael J Starkey , Subhamoy Chatterjee , Heather Elliott , Samuel Hart , Kimberly Moreland

We present a technique to automatically minimise the re-computation when a data analysis program is iteratively changed, or added to, as is often the case in exploratory data analysis in astronomy. A typical example is flagging and…

天体物理仪器与方法 · 物理学 2018-09-07 Bojan Nikolic , Des Small , Mark Kettenis

This paper introduces the articles that describe detailed aspects of the XMM-Newton calibration. The unique calibration issues of XMM-Newton are highlighted. The original calibration requirements and aspects of the ground calibration are…

天体物理学 · 物理学 2007-05-23 D. H. Lumb

Context: XMM-Newton was launched on 10 December 1999 and has been operational since early 2000. One of the instruments onboard XMM-Newton is the reflection grating spectrometer (RGS). Two identical RGS instruments are available, with each…

The modeling and analysis generic interface for external numerical codes (MAGIX) is a model optimizer developed under the framework of the coherent set of astrophysical tools for spectroscopy (CATS) project. The MAGIX package provides a…

天体物理仪器与方法 · 物理学 2012-10-25 T. Möller , I. Bernst , D. Panoglou , D. Muders , V. Ossenkopf , M. Röllig , P. Schilke

The EXTraS project (Exploring the X-ray Transient and variable Sky) will harvest the hitherto unexplored temporal domain information buried in the serendipitous data collected by the European Photon Imaging Camera (EPIC) instrument onboard…

高能天体物理现象 · 物理学 2019-08-15 A. De Luca , R. Salvaterra , A. Tiengo , D. D'Agostino , M. G. Watson , F. Haberl , J. Wilms

In the current landscape of large language models (LLMs), the process of instruction tuning serves as an essential step. Considering the high computing power overhead, data-efficient instruction tuning was proposed to reduce the training…

计算与语言 · 计算机科学 2025-01-06 Qi Zhang , Yiming Zhang , Haobo Wang , Junbo Zhao

Nowcasting and forecasting of the radiation environment in the Earth's lower atmosphere are critical for the safety of aircraft and spacecraft crews and passengers. Currently, this problem is addressed by employing statistical and…

X-ray Multi-Mirror Mission (XMM-Newton) has been one of the most successful astronomy missions launched by the European Space Agency. It exploits innovative use of replication technology for the X-ray reflecting telescopes that has resulted…

天体物理仪器与方法 · 物理学 2012-02-09 David H Lumb , Norbert Schartel , Fred A Jansen

The X-ray Multi-Mirror Mission XMM-Newton is ESA's largest observatory so far; it is dedicated to explore the Universe in the 0.2 - 15 keV X-ray band of the electromagnetic spectrum. Because of its large collecting area very faint sources…

天体物理学 · 物理学 2007-05-23 W. Becker , B. Aschenbach

XMM-Newton, a European Space Agency observatory, has been observing the X-ray, ultra-violet and optical sky for 23 years. During this time, astronomy has evolved from mainly studying single sources to populations and from a single…

Astronomy is entering in a new era of Extreme Intensive Data Computation and we have identified three major issues the new generation of projects have to face: Resource optimization, Heterogeneous Software Ecosystem and Data Transfer. We…

天体物理仪器与方法 · 物理学 2012-12-11 Nicolas Kamennoff , Sébastien Foucaud , Sébastien Reybier

We describe the production, properties and scientific potential of the XMM-Newton catalogue of serendipitous X-ray sources. The first version of this catalogue is nearing completion and is planned to be released before the end of 2002.

Multidimensional scaling (MDS) is a dimensionality reduction tool used for information analysis, data visualization and manifold learning. Most MDS procedures embed data points in low-dimensional Euclidean (flat) domains, such that…

计算几何 · 计算机科学 2018-10-23 Gil Shamai , Michael Zibulevsky , Ron Kimmel

Aims. We measure, as far out as possible, radial temperature profiles for a sample of ~50 hot, intermediate redshift galaxy clusters, selected from the XMM-Newton archive, keeping systematic errors under control. Methods. Our work is…

天体物理学 · 物理学 2009-11-13 A. Leccardi , S. Molendi

XAssist is a NASA AISR-funded project for the automation of X-ray astrophysics, with emphasis on galaxies. It is nearing completion of its initially funded effort, and is working well for Chandra and ROSAT HRI data. Initial support for…

天体物理学 · 物理学 2007-05-23 A. Ptak , R. Griffiths

Determining proper quantities for ingredients is an essential part of cooking practice from the perspective of enriching tastiness and promoting healthiness. We introduce KitchenScale, a fine-tuned Pre-trained Language Model (PLM) that…

计算与语言 · 计算机科学 2023-04-24 Donghee Choi , Mogan Gim , Samy Badreddine , Hajung Kim , Donghyeon Park , Jaewoo Kang

This paper focuses on the utility of various data transformation techniques, which might be under the principal component analysis (PCA) category, on exoplanet research. The first section introduces the methodological background of PCA and…

地球与行星天体物理 · 物理学 2022-11-29 Güray Hatipoğlu

Solar X-ray Monitor (XSM) instrument of India's Chandrayaan-2 lunar mission carries out broadband spectroscopy of the Sun in soft X-rays. XSM, with its unique features such as low background, high time cadence, and high spectral resolution,…