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类星体光谱识别及红移测量软件 A Spectrum Eye Recognition Assistant for Quasar Spectra

类星体光谱识别及红移测量软件 A Spectrum Eye Recognition Assistant for Quasar Spectra. 2014 年 6 月 30 Yuan Hailong. Background. QSO Template spectra with z=0. Spectral type Phenomenology  classification Method: template matching QSO Large redshift z Limit wavelength range Low SNR and other defects

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类星体光谱识别及红移测量软件 A Spectrum Eye Recognition Assistant for Quasar Spectra

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  1. 类星体光谱识别及红移测量软件 A Spectrum Eye Recognition Assistant for Quasar Spectra 2014年6月30 Yuan Hailong

  2. Background QSO Template spectra with z=0 • Spectral type • Phenomenology  classification • Method: template matching • QSO • Large redshift z • Limit wavelength range • Low SNR and other defects • Broad emission lines • Manual ajustment • Not only for QSO • Star (O, B, A, F, G, K, M, WD, Carbon) • Galaxy Broad emission lines • ASERA: A Spectrum Eye Recognition Assistant for Quasar Spectra

  3. Supported files • Image • JPG • PNG • GIF • … • LAMOST fits • SDSS fits • Others types • Location • Local • URL: http, ftp, file • ASERA: A Spectrum Eye Recognition Assistant for Quasar Spectra

  4. Image file: main interface • 1, file path • 2, spectra • 3, target info • 4, flux scale & shift • 5, wavelength scale & shift • 6, popup menu • Template Spectra Control • Color: blue • Mouse click, Mouse drag • Mouse wheel • Set reference line to calculate z • ASERA: A Spectrum Eye Recognition Assistant for Quasar Spectra

  5. Fits file: Target information • ASERA: A Spectrum Eye Recognition Assistant for Quasar Spectra RA, DEC, mag, obsdate, planidFitsHeader

  6. Fits file: Flux adjustment • ASERA: A Spectrum Eye Recognition Assistant for Quasar Spectra

  7. Fits file: Wavelength range adjustment • ASERA: A Spectrum Eye Recognition Assistant for Quasar Spectra 4000~5000 3700~9000 8000~9000 Ca II 三重线

  8. Template selection • Right click PopupMenu Plot template  • Default • Star • Galaxy • QSO • Others • ASERA: A Spectrum Eye Recognition Assistant for Quasar Spectra

  9. Templates from SDSS http://www.sdss.org/dr5/algorithms/spectemplates/ • spDR2-000_O-star.fit • spDR2-001_OB-transition-star.fit • spDR2-002_B-star.fit • spDR2-003_A-star.fit • spDR2-004_A-star.fit • spDR2-005_FA-transition-star.fit • spDR2-006_F-star.fit • spDR2-007_F-star.fit • spDR2-008_G-star.fit • spDR2-009_G-star.fit • spDR2-010_K-star.fit • spDR2-011_M1-star.fit • spDR2-012_M3-star.fit • spDR2-013_M5-star.fit • spDR2-014_M8-star.fit • spDR2-015_L1-star.fit • spDR2-016_Magnetic-white-dwarf.fit • spDR2-017_Carbon-star.fit • spDR2-018_Carbon-star.fit • spDR2-019_Carbon-star.fit • spDR2-020_White-dwarf.fit • spDR2-021_B-white-dwarf.fit • spDR2-022_Low-metallicity-K-subdwarf.fit • spDR2-023_Early-type-galaxy.fit • spDR2-024_Galaxy.fit • spDR2-025_Galaxy.fit • spDR2-026_Galaxy.fit • spDR2-027_Late-type-galaxy.fit • spDR2-028_Luminous-Red-Galaxy.fit • spDR2-029_QSO.fit • spDR2-030_QSO-with-some-BAL-activity.fit • spDR2-031_QSO-with-some-BAL-activity.fit • spDR2-032_High-luminosity-QSO.fit • ASERA: A Spectrum Eye Recognition Assistant for Quasar Spectra

  10. Image file: pixel-wavelength transformation • Right click popupmenu Set Spec Start/End Pixel 1314000 Pixel 42610000 • ASERA: A Spectrum Eye Recognition Assistant for Quasar Spectra

  11. Show Spectral lines • Right click  Plot lines • Qso：8 • Star：40 • Gal：12 • Two aspects • Continuous spectra • Spectral lines • ASERA: A Spectrum Eye Recognition Assistant for Quasar Spectra

  12. Batch process • Local directory • Spectral list file • CSV file • VOTable XML file • Online IVOA-SSAP service • MySQL database & Http server • Output: • Spectra url • Template name • redshift • ASERA: A Spectrum Eye Recognition Assistant for Quasar Spectra

  13. Examples from LAMOST

  14. 20111126 F9205 16 59 RA=121.76259 DEC=7.82313 r mag=18.81 SN-g 2.3 SN-r 2.0 QSO~Unknown red shift 1.44 SDSS spectra • ASERA: A Spectrum Eye Recognition Assistant for Quasar Spectra

  15. 20120219 F5597703 10 237 RA=169.48717 DEC=5.47571 r mag=18..03 Sn-g 3.56 Sn-r 5.21 Star Redshift 1.51 SDSS spectra • ASERA: A Spectrum Eye Recognition Assistant for Quasar Spectra

  16. 20131220M31010N33M1 10 149 RA=8.157018 DEC= 33.007835 r mag=19.64 Sng=2.86 Snr=3.63 Pipeline=unknown 1d check=QSO Redshift 1.22 No SDSS spectra found • ASERA: A Spectrum Eye Recognition Assistant for Quasar Spectra

  17. Z=0.31 snr2 magr18.71 Z=1.31 snr 4 magr18.95 20130914 EG020922N055910M01 InputType=QSO count=790 star, no spectra galaxy no spectra Z=1.42 snr 2~4 magr19.65 Z=1.59 SNR 9~10 magr18.06 star, no spectra star ,no spectra

  18. Z=1.94 snr 2~3 magr19.18 Z=2.71 snr 9 magr 18.92 star, no spectra SDSS spectra Z=3.43 snr 2~3 magr20.03 Z=3.59 snr 2~3 magr19.68 star, no spectra star, no spectra

  19. Follow up identification • Low SNR • Fake emission line • Cross identification: SDSS • Follow observation

  20. Software status • Version 1.0 • Used by some researchers from LAMOST extragalactic group • Software installation • JavaVirtual machine • MacOS has JVM installed by default. • Upgrade plan • To support more input file format, or user defined format • To develop comprehensive platform, mobile applicaion • Email for fetching software and sending suggestions: • yuanhl@bao.ac.cn • Reference • http://adsabs.harvard.edu/abs/2013A%26C.....3...65Y • http://arxiv.org/abs/1404.6018 • ASERA: A Spectrum Eye Recognition Assistant for Quasar Spectra

  21. Thanks！

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