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# Problem and Demand - In a standard SPECTRA file of FITS format, there is a column of source `COUNTS` in extension. - Default data type of `COUNTS` is `1I`, meaning *interger*. - **manually** chang

# Xread - https://arxiv.org/abs/2112.12311 - **Measuring the Non-Axially-Symmetric Surface Temperature Distribution of the Central Compact Object in Puppis A** - by 周平 # 2112.12981 - https://arxiv.or

#2112.04531 - https://arxiv.org/abs/2112.04531 - **Evidence for a Compact Object in the Aftermath of the Extra-Galactic Transient AT2018cow** - In this work, the authors present evidence for a 224Hz (

# 2111.07899 - https://arxiv.org/abs/2111.07899 - **SRG/eROSITA view of X-ray reflection in the Central Molecular Zone: a snapshot in September-October 2019** - This paper shows the result of SRG/eROS

# 2111.03679 - **The deepest Chandra view of RBS 797: evidence for two pairs of equidistant X-ray cavities** - https://arxiv.org/abs/2111.03679 - The authors explored 427-ks X-ray image of a galaxies

# 2110.13754 - https://arxiv.org/abs/2110.13754 - **X-ray irradiation of three planets around Hyades star K2-136** - K2-136 is a K-type star in the star cluster Hyades. It has three planets, K2-136 b

# 2110.10181 - https://arxiv.org/abs/2110.10181 - **Spatially Resolved X-ray Study of Supernova Remnant G306.3−0.9 with Unusually High Calcium Abundance** - local experts: **翁建斌** # 2110.12220 - http

# 2110.06995 - https://arxiv.org/abs/2110.06995 - **Deep Chandra observations of diffuse hot plasma in M83** - authors: Daniel Wang # 2110.08856 - https://arxiv.org/abs/2110.08856 - **Prospect of Det

# 2110.02982 - https://arxiv.org/abs/2110.02982 - **Investigating the Accretion Nature of Binary Supermassive Black Hole Candidate SDSS J025214.67-002813.7** - The multiwavelength SED of binary SMBHs

# eRosita Final Equatorial Depth Survey (eFEDS) catalog series - https://erosita.mpe.mpg.de/edr/eROSITAObservations/Catalogues/ - 2106.14517-14527 - The eROSITA team just released its eFEDS catalogue.