星系形態(tài)星表數(shù)據(jù)描述(編輯修改稿)
2025-02-02 09:03 本頁(yè)面
【文章內(nèi)容簡(jiǎn)介】 f object peak flux on ACS tile ACS_ALPHAPEAK_ float degrees RA of object peak flux ACS_DELTAPEAK_ float degrees Dec of object peak flux ACS_A_IMAGE float SExtractor semimajor axis ACS_B_IMAGE float SExtractor semiminor axis ACS_THETA_IMAGE float SExtractor position angle ACS_ELONGATION float SExtractor a/b [semimajor axis / semi minor axis] ACS_CLASS_STAR float SExtractor stellarity parameter ACS_IDENT float Unique number that identifies object ACS_SE float 1 = Detection from 39。hot39。 pass of SExtractor. 0 = Detection from 39。cold39。 pass of SExtractor. ACS_MU_CLASS float Type of object. 1 = galaxy 2 = star 3 = spurious ACS_OVERLAP float Object overlap flag. All objects here have overlap =1 . no overlap. ACS_NEARSTAR float Object in star mask flag. All the objects in this morphological catalog have nearstar = 1 which means they are not in a star mask. ACS_MASK float Object in automatic mask flag. 2 = star used to make automatic mask ACS_MASKED float Object in manual mask flag. 1 = manual mask (astrophysical obj) 0 = manual mask (artifact or image defect) 1 = not in manual mask ACS_CLEAN float Object useable flag. 0 = do not use this object 1 = use this object ACS_UNIQUE float Object unique flag. All the objects in this morphological catalog have unique = 1 which means they are all unique in the original ACS catalog. GG float ZEST Gini coefficient M20 float ZEST second order moment of the 20% brightest pixels CC float ZEST concentration AA float ZEST asymmetry R20 float pixels ZEST semimajor axis length of
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