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 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 QSO Template spectra with z=0 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, planid FitsHeader

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

7. Fits file: Wavelength range adjustment Ca II 三 重线 ASERA: A Spectrum Eye Recognition Assistant for Quasar Spectra 3700~90004000~50008000~9000

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 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 http://www.sdss.org/dr5/algorithms/spectemplates/ ASERA: A Spectrum Eye Recognition Assistant for Quasar Spectra

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

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. 20131220 M31010N33M1 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 Z=1.42 snr 2~4 magr19.65 Z=1.59 SNR 9~10 magr18.06 20130914 EG020922N055910M01 InputType=QSO count=790 star, no spectra galaxy no spectra star, no spectra star,no spectra

18. Z=1.94 snr 2~3 magr19.18 Z=2.71 snr 9 magr 18.92 Z=3.43 snr 2~3 magr20.03 Z=3.59 snr 2~3 magr19.68 star, no spectra SDSS 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 –Java Virtual machine –Mac OS 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.cnyuanhl@bao.ac.cn Reference –http://adsabs.harvard.edu/abs/2013A%26C.....3...65Yhttp://adsabs.harvard.edu/abs/2013A%26C.....3...65Y –http://arxiv.org/abs/1404.6018http://arxiv.org/abs/1404.6018 ASERA: A Spectrum Eye Recognition Assistant for Quasar Spectra

21. THANKS ！