光谱观测与数据处理
光谱观测与数据处理
光谱观测数据处理 1.观测准备：中请时间、观测源 2. 光谱观测：仪器设置、曝光附问 3. 光谱处理：bias、flat、obj.、standards、 HeAr... 4. 恒星连续谱测定：一级标准星、二级、… 5. 光谱测量星条红移的确定：redshift、rest frame 6. 谱线持征的测量：F、prof.、EW、FWHM
光谱观测数据处理 1. 观测准备：申请时间、观测源 2. 光谱观测：仪器设置、曝光时间 3. 光谱处理：bias、flat、obj. 、standards、 HeAr… 4. 恒星连续谱测定：一级标准星、二级、… 5. 光谱测量星系红移的确定：redshift、rest frame 6. 谱线特征的测量：F、prof.、EW、FWHM
1.观测准备 观测中请： 口项目名称 口科学内容：阅读文献，ADS(天体物理数据系统) 课题的科学意义十望远镜的观测能力 口观测时问月份和月相（有月夜、无月夜，灰夜） 口最近成果：paper list,ADS,SIMBAD(天文数据库) 口仪器要求：科学目标→R,灵敏度 口观测对象：list,backup list 观测辅助工具： 观测时问的估算：望远统主页 PrOAS ▣ proas
1. 观测准备 n 观测申请： q 项目名称 q 科学内容：阅读文献，ADS(天体物理数据系统) 课题的科学意义 + 望远镜的观测能力 q 观测时间：月份和月相（有月夜、无月夜，灰夜） q 最近成果：paper list，ADS，SIMBAD(天文数据库) q 仪器要求：科学目标 ® R，灵敏度 q 观测对象：list, backup list n 观测辅助工具： q 观测时间的估算：望远镜主页 q proas
Proas:planning of astronomical observations Proas:a program devoted to the computation of the visibility conditions of astronomical objects. https://proas.readthedocs.io/en/latest/ 输入： 011h24m9在-14g00 0000 11h5m0的：-e1°440g 2005里1 690 1.0 Culmiantlon:8 15h 02m2. 口台站位置 40 OBiRCT 5:oommmos a:10h00m25+02心1221 a009.01 1.2 口观测日期 ”uga 2002 1 口天体位置 3.0 4.0 11 16 17 181920 (T) N(180) 输出： Observatory:BAO-216 1at山ud0:+402336r ongitude::117°3W30 Helght:950.m DATE:2008,15 MARCH 口录佳观测时间 D(t0htUT2463800.5 08T（at0hU7:11h29m50a B(270 LST (at Oh UT):19h 20m C8u t地阁 end of twilight:IIh 52m beginning of twilight:20h 44m sunrise:22h 15m Night time free of twilight:08h 62m 8(07
Proas: planning of astronomical observations n Proas：a program devoted to the computation of the visibility conditions of astronomical objects. https://proas.readthedocs.io/en/latest/ n 输入： q 台站位置 q 观测日期 q 天体位置 n 输出： q 最佳观测时间
NASA/IPAC Extragalactic Database http://ned.ipac.caltech.edu/classic NED News Featured Updates March 2014 (N24.2.4) Preview release of a new user interface Explore galaxy environments via radial velocity constrained cone searches 40 million objects from the GALEX All Sky Catalog with NED cross-IDs 471 million objects from the 2MASS Point Source Catalog (cone searches) 1 million new objects with redshifts(5.2 million total) NED is embarking on a major transformation:We invite you to preview a new interface providing a drop-down menu and a form to search for objects By Name directly on the landing page(future homepage).A new Near Position search option includes catalog sources that are undergoing integration into NED.All users should read about these significant changes.Further streamlining of the interface,including consolidation of search forms,will be released incrementally with new content and evolving functionality. OBJECTS DATA LITERATURE 网TOOLS Images by By Name Object Name References by Coordinate Transformation Introduction Region Object Name Extinction Calculator Latest News/Updates Near Name Photometry SEDs References by Features Author Name Velocity Calculator FAQ Near Position Spectra Text Search Cosmology Calculators Overview (pdf) IAU Format Redshifts Knowledgebase LEVEL S Extinction-Law Calculators Source Nomenclature By Parameters Redshift-Independent Galaxy Distance Galaxy Environment by Distances Tabulations(NED-D】 Precomputed Parameters Web Links Radial Velocity Constraint By Classifications Classifications by Types,Attributes Object Name Abstracts X/Y offset to RA/DEC Glossary Lexicon By Refcode Batch Job Submission Help Positions Thesis Abstracts Pick Up Results Team Build Data Table from Input List Object Notes Diameters By Name Contact Us Near Name/Position(Cross-Matching) or Comment
NASA/IPAC Extragalactic Database http://ned.ipac.caltech.edu/classic
■名称 ■位置 ■图像 ■红化 ■文献 ■星等 ■工具
n 名称 n 位置 n 图像 n 红化 n 文献 n 星等 n 工具 n …
2.光谱观测 仪器设置： nspec 256 filename=w33.3524 instmode=hi-med nspat =256 feature Ne ll echelle 54.585 date-obs=09-06-09 1ores=-15.000 waveno0 780.4 kmirror 0.045 time=08:53:43.068 order =4 timesys UTC temp =281.1 slit=239.460 filter 278.520 observer=TG,JL, humidity=44.7 telescop=IRTF instrum texes obsmode scan temp_det=0.352 ra =18:14:43.95 telstep =0.70 E 0.00 dec =-17:54:52.5 N temp_ech=0.359 offset =-30.00 E temp lhe=0.046 equinox 2000.0 Ist =15:43:16.58 0.00N temp_In2=0.011 pressure=17.382 Torr ha =-02:31:27.37 nod =0.0E5.0N airmass 1.658 npoints 72 bitpix 32 bias focus =-2.050 =-4.0V frametim=1.0119168 =25 endtime=08:53:43.068 nframe 2 gain bandwid 3000 kHz
filename= w33.3524 feature = Ne II waveno0 = 780.4 order = 4 temp = 281.1 humidity= 44.7 obsmode = scan telstep = 0.70 E 0.00 N offset = -30.00 E 0.00 N nod = 0.0 E 5.0 N npoints = 72 frametim= 1.0119168 nframe = 2 2. 光谱观测 n 仪器设置： instmode= hi-med echelle = 54.585 lores = -15.000 kmirror = 0.045 slit = 239.460 filter = 278.520 instrum = texes temp_det= 0.352 temp_ech= 0.359 temp_lhe= 0.046 temp_ln2= 0.011 pressure= 17.382 Torr bitpix = 32 bias = -4.0 V gain = 25 bandwid = 3000 kHz nspec = 256 nspat = 256 date-obs= 09-06-09 time = 08:53:43.068 timesys = UTC observer= TG, JL, telescop= IRTF ra = 18:14:43.95 dec = -17:54:52.5 equinox = 2000.0 lst = 15:43:16.58 ha = -02:31:27.37 airmass = 1.658 focus = -2.050 endtime = 08:53:43.068
观测式样： Files Obj. Btime Exp.(s) R.A. Dec. Epoch k0116001-5 Bias 16:30:00 暗流在红外观测中非常重 k0116006-10 Domeflat 16:32:00 90 要，在光学观测时可以忽 k0116011-15 Skyflat 17:00:00 略，特别是使用低温探测 k0116016 HeAr 18:40:00 30 器时 k0116017 HD19445 18:50:15 60 03:08:26 26:20:35 2000 k0116018 NGC0925 19:54:24 1800 02:27:17 33:34:45 2000 k0116019 NGC0925 20:26:16 1800 02:27:17 33:34:45 2000 k0116020 NGC0925 20:56:38 1800 02:27:17 33:34:45 2000 k0116022 HD19445 22:19:08 60 03:08:26 26:20:35 2000 本底观测并非必需的，只 k0116041-45 Domeflat 30:21:00 120 有在需要scale暗流图像的 k0116046-50 Bias 30:25:00 情况下需要
Files Obj. Btime Exp.(s) R.A. Dec. Epoch k0116001-5 Bias 16:30:00 0 k0116006-10 Domeflat 16:32:00 90 k0116011-15 Skyflat 17:00:00 3 k0116016 HeAr 18:40:00 30 k0116017 HD19445 18:50:15 60 03:08:26 26:20:35 2000 k0116018 NGC0925 19:54:24 1800 02:27:17 33:34:45 2000 k0116019 NGC0925 20:26:16 1800 02:27:17 33:34:45 2000 k0116020 NGC0925 20:56:38 1800 02:27:17 33:34:45 2000 k0116022 HD19445 22:19:08 60 03:08:26 26:20:35 2000 。。。 k0116041-45 Domeflat 30:21:00 120 k0116046-50 Bias 30:25:00 0 观测式样: 本底观测并非必需的，只 有在需要scale暗流图像的 情况下需要 暗流在红外观测中非常重 要，在光学观测时可以忽 略，特别是使用低温探测 器时
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Dealing with Multiple Stars On the Slit