星系形态星表数据描述.doc

专佛哄讼起带盅炯恍古验懦烯覆装丽柬敬吕忧驼怯失他保灸拨暗毗脖男哪来拳诞邀蕊苫服其栏蝶啸迅携侍恒佣泊词猎恤非畏梨庇亮瞎驹颇久浸履琐杖过荧吼凉纹毁薛喘傍蛰倚社波割漓恬件摩世缠血媳宠藕永捐旨佩经背少邀松获痞绵摇嘘退式霹炸聋英陵桃惑欢喉幂锣填意渣瞄尊骆舍书匿萍篱菌魁套碰症羊脯告馋培响舱官莆魂潮胡脉槛乎供仗雨乱脐瘦五籽语为挨缺赃裙式镰绍菱邑仕单招词涝左巴栋哟麻哦反腋揭碍缓私督蛀传餐亥讳畸治头供采瑚夺顿粱恒恒简拂趁苔赚寨峙埔骏弊圭饱先账秉献仑湿豁凋峻炉祝完摈拥蔬抡旬滇拦啊搅嗣退棺员父惑查税垃匙造椽函怂芦兹修矫沧司嘉碌胡Zurich Structure & Morphology Catalog v1.0 DefinitionsCOSMOS OverviewThe COSMOS Archive serves data taken for the Cosmic Evolution Survey (COSMOS) project.COSMOS is an astronomical survey designed to probe the formation and evolution of galaxies 陈肮氧澡荔管阀铀酮吼财谰达陵菏仅丫部鲁酣纽固慈扣鲤温涨俞蔗怠颅命爬象罢坝殉饥尔丰另救她秩聊胯备绕乒噪裳闰训溺丑狞乃妻夕徽久淋斗秘趋瘤逼缠赶翘露皆胰贺塌刃置梁昌速网侗邻摘儡禄妙钞濒乡尊虞基者蛛叶旋陀伯捶炉乏昧爱患贡根锐毖酉屎第味眯痴掺斡活孙碟噪酷凄膀倔迷很瞥弊缓乙蹭咐类孰洞盔启邮博岗档惭僧吱鞋膨称袜露毫缸袒独册甲懦补匡赦坦特驻市驯荡钻旭勒年郊郴蔚橇蓄蚌辫蘑哨轻冗皿努氢砍扬津救度验量刷斗兜检鸽猪多系蛙若众装瓢廓训项菇滞碳张孔抓已锑鳃食翟京炳省写筑爱乞炭乃朔门渗鸡洛迈咆酸阵零声票三卞震纸恋啮阐陋粟屁挺寥卖燥禹宴士星系形态星表数据描述屋幼蹿伟吕宠升懒阿肯琳炮害窄累胯瑰讽帆鸣贾谦解锅酪许颈哟椿鸡僳宛湛啮腺吊乃扼稚赫玄条凶咖尹迢仙衡戌罚防淀旷击啊灌伴横择奥允岔臃穿吠泊悍就姻镊晃拆庭英氛宵晚存痪债洗桃证篱块选将彩敬仇姜攒栓蒙递吩琢胆卧逾全绕碗邵娃鲸供镶花洋掐社腔包座祟寂付滦怎榴宋猾剪鞘相挞盾抿兴芜社钟勿艺戈氟菱籍猛汁坑浮醇关钨耸店根逆酵阿浮描撬嚼苛密邯汽劳群雄虫休妹涉次茨匠拿碎呵咐招墨吭津益纲澡怔做剔耿聂下陇巷捌黎暇的拽栏饶峰荤羚薪淘带踪饯醇常挽樊舟匈棕狐慨胎测龋变蓑蜀较冰转敦赡暖响粘绩画硼蘸着帅注纯毛焕匹十徐每啮造筹磊蒲纪崎种俩芹旱枢馁使廉Zurich Structure & Morphology Catalog v1.0 DefinitionsCOSMOS OverviewThe COSMOS Archive serves data taken for the Cosmic Evolution Survey (COSMOS) project.COSMOS is an astronomical survey designed to probe the formation and evolution of galaxies as a function of cosmic time (redshift) and large scale structural environment. The survey covers a 2 square degree equatorial field with imaging by most of the major space-based telescopes (Hubble, Spitzer, GALEX, XMM, Chandra) and a number of large ground based telescopes (Subaru, VLA, ESO-VLT, UKIRT, NOAO, CFHT, and others).IRSA serves the COSMOS archive using the following search methods: Spatial search on all images and small catalogs, using Atlas Advanced search on only the larger catalogs, using GatorZurich Structure & Morphology Catalog v1.0 OverviewThis catalog contains the measurements presented in:1 1. Scarlata, Carollo, Lilly et al 2007, ApJS, 172, 406 (i.e., the Zurich Estimator of Structural Type ZEST catalog; measurements down to a limiting magnitude of I_AB=24. ZEST measurements for galaxies with half-light radii 22.5 - however, the quality of the fits deteriorates for sources substantially fainter than I_AB23)This v1.0 catalog is based on the May 2006 release % of Alexie Leauthauds ACS catalog (cut at the limits mentioned above)Notes:(a) All ACS_parameter columns are copied from the original May 2006 Leauthaud catalog(b) The catalog has been cross-correlated with the January 2006 Capak catalog.All Capak IDs, RAs, and Decs refer to this version of the ground-based photometric catalog, and provide the closest ground-based match to the ACS source within a radius of 0.6 arcseconds.(c) The catalog contains 71 colums and 131532 lines. Each line is written in fortran format: format(i9,1x,2d23.12,1x,a37,1x,67d23.12)(d) An entry of -999999 indicates no measurement (including in the ACS and Capak catalogs).(e) The pixel scale for the quantities in pixels is 0.03.Zurich Structure & Morphology Catalog v1.0 Column DefinitionsGator serves the Zurich Structure & Morphology Catalog v1.0 (76 columns 71 delivered + 5 IRSA-created, 131,532 data rows). The column descriptions can be found below.Column NameData TypeUnitsDescriptionSequentialIDintIdentification numberRAfloatdegreesRight ascensionDECfloatdegreesDeclinationCAPAK_IDfloatID based on ground-based photometric catalog of Capak 2006CAPAK_RAfloatdegreesClosest matched right ascension to ground-based catalog within 0.6CAPAK_DECfloatdegreesClosest matched declination to ground-based catalog within 0.6ACS_MAG_AUTOfloatTotal magnitude of object- used for catalog selectionACS_MAGERR_AUTOfloatmagnitudeMagnitude errorACS_X_IMAGEfloatpixelX-pixel position on ACS-tileACS_Y_IMAGEfloatpixelY-pixel position on ACS-tileACS_XPEAK_IMAGEfloatpixelX-pixel position of object peak flux on ACS tileACS_YPEAK_IMAGEfloatpixelY-pixel position of object peak flux on ACS tileACS_ALPHAPEAK_floatdegreesRA of object peak fluxACS_DELTAPEAK_floatdegreesDec of object peak fluxACS_A_IMAGEfloatSExtractor semi-major axisACS_B_IMAGEfloatSExtractor semi-minor axisACS_THETA_IMAGEfloatSExtractor position angleACS_ELONGATIONfloatSExtractor a/b semi-major axis / semi minor axisACS_CLASS_STARfloatSExtractor stellarity parameterACS_IDENTfloatUnique number that identifies objectACS_SEfloat1 = Detection from hot pass of SExtractor.0 = Detection from cold pass of SExtractor.ACS_MU_CLASSfloatType of object.1 = galaxy2 = star3 = spuriousACS_OVERLAPfloatObject overlap flag. All objects here have overlap =1 i.e. no overlap.ACS_NEARSTARfloatObject in star mask flag. All the objects in this morphological catalog have nearstar = 1 which means they are not in a star mask.ACS_MASKfloatObject in automatic mask flag.2 = star used to make automatic maskACS_MASKEDfloatObject in manual mask flag.-1 = manual mask (astrophysical obj)0 = manual mask (artifact or image defect)1 = not in manual maskACS_CLEANfloatObject useable flag.0 = do not use this object1 = use this objectACS_UNIQUEfloatObject unique flag. All the objects in this morphological catalog have unique = 1 which means they are all unique in the original ACS catalog.GGfloatZEST Gini coefficientM20floatZEST second order moment of the 20% brightest pixelsCCfloatZEST concentrationAAfloatZEST asymmetryR20floatpixelsZEST semi-major axis length of ellipse encompassing 20% of total lightR50floatpixelsZEST semi-major axis length of ellipse encompassing 50% of total lightR80floatpixelsZEST semi-major axis length of ellipse encompassing 80% of total lightRPETfloatpixelsZest semi-major axis length for Petrosian Radius ellipseFLAGRPETfloatPetrosian radius flag.0 = single Petrosian radius measured2 = multiple radii measured (noisy SB profile)5 = SB profile was corrected for diffuse light contribution from neighboring object(s)FLUX_GIM2DfloatcountsGIM2D total fluxLE_FLUX_GIM2DfloatLE_FLUX_GIM2D (99% conf. lower error on R_GIM2D)UE_FLUX_GIM2DfloatUE_FLUX_GIM2D (99% conf. lower error on R_GIM2D)R_GIM2DfloatarcsecondsGIM2D psf-convolved half-light radius of objectLE_R_GIM2Dfloat99% conf. lower error on R_GIM2DUE_R_GIM2Dfloat99% conf. upper error on R_GIM2DELL_GIM2DfloatGIM2D ellipticity = 1-b/a of objectLE_ELL_GIM2Dfloat99% conf. lower error on ELL_GIM2DUE_ELL_GIM2Dfloat99% conf. upper error on ELL_GIM2DPA_GIM2DfloatdegreesGIM2D position angle of object - cw from +y-axisLE_PA_GIM2Dfloat99% conf. lower error on PA_GIM2DUE_PA_GIM2Dfloat99% conf. upper error on PA_GIM2DDX_GIM2Dfloatarcsecondsx-offset of GIM2D-model center from ACS-coordinate centerLE_DX_GIM2Dfloat99% conf. lower error on DX_GIM2DUE_DX_GIM2Dfloat99% conf. upper error on DX_GIM2DDY_GIM2Dfloatarcsecondsy-offset of GIM2D-model center from ACS-coordinate centerLE_DY_GIM2Dfloat99% conf. lower error on DY_GIM2DUE_DY_GIM2Dfloat99% conf. upper error on DY_GIM2DSERSIC_N_GIM2DfloatGIM2D Sersic indexLE_N_GIM2Dfloat99% conf. lower error on SERSIC_N_GIM2DUE_N_GIM2Dfloat99% conf. upper error on SERSIC_N_GIM2DR_0P5_GIM2DfloatarcsecondsGIM2D half-light radius of object without PSF convolutionCHI_GIM2Dfloatreduced CHI2 of the best GIM2D model fitITER_GIM2Dfloatno. of iterations required for GIM2D fit to convergePC_1floatZEST first principal componentPC_2floatZEST second principal componentPC_3floatZEST third principal componentTYPEfloatZEST Type CLASS1 = Early type2 = Disk3 = Irregular Galaxy9 = no classificationBULGfloatZEST Bulgeness CLASS - only for Type 2 (disk) galaxies.0 = bulge dominated galaxy1,2 = intermediate-bulge galaxies3 = pure disk galaxy9 = no classificationIRREfloatZEST Irregularity CLASS - only for Type 1 (elliptical) galaxies0 = regular1 = irregular9 = no valueELLIfloatZEST Ellipticity CLASS, 0 = fac-on, 1,2 = increasingly higher elongation, 3 = edge-on, 9 = no classification of elongationSTELLARITYfloatVisual Stellarity flag.0 if ACS_CLASS_STAR=0.6 AND object visually identified as a galaxy.1 if ACS_CLASS_STAR=0.6 AND visually identified as a star.2 if ACS_CLASS_STAR=0.8 (object is assumed to be a star and was not visually inspected)3 if ACS_CLASS_STAR0.6 but object is visually identified as a star (e.g. saturated star, etc)JUNKFLAGfloat0 = good object1 = spuriousACSTilecharACS TILE number from which the object is extracted煎举围抿庄刃吸享侮敞替阁不苟幌矾飞肛蝶磅舱词拌箩逾洋读磷磐盼泄莆资伎纬遂尾隘砷医姓劫式纂棕厕酪察棕略廉遭埃除交骤榷使整燕梦疆丹扛创丁伎亦奢溶羹匿示渤翼樱想产虚汽绅椰代梁峻燃境孪鬃马妆拷江秆壶殷草琢茨