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HIGH-RESOLUTION SPECTROSCOPY OF THE MAGPOP-ITP dEs

La Palma International Time Programme. HIGH-RESOLUTION SPECTROSCOPY OF THE MAGPOP-ITP dEs. ELISA TOLOBA Universidad Complutense de Madrid, Spain. B3 (4800-5600 Ǻ). B1 (3500-4300 Ǻ). R1 (5500-6700 Ǻ). R2 (7750-8950 Ǻ). B2 (4100-4900 Ǻ). 4000. 5000. 8000. 6000. Ǻ. 7000.

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HIGH-RESOLUTION SPECTROSCOPY OF THE MAGPOP-ITP dEs

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  1. La Palma International Time Programme HIGH-RESOLUTION SPECTROSCOPY OF THE MAGPOP-ITP dEs ELISA TOLOBA Universidad Complutense de Madrid, Spain

  2. B3 (4800-5600 Ǻ) B1 (3500-4300 Ǻ) R1 (5500-6700 Ǻ) R2 (7750-8950 Ǻ) B2 (4100-4900 Ǻ) 4000 5000 8000 6000 Ǻ 7000 Instrumental Configuration (ISIS-WHT) • 5 spectral ranges in 3 shots (using dichroics) • Resolution FWHM 1.56Ǻ(R=3100) in the blue; FWHM 3.22Ǻ(R=2400) in the red • 2 arcsec width slit • Exposure times needed: 3000 – 5000 secs per range • 2.5 – 4 hours /galaxy

  3. SAMPLE (I)

  4. SAMPLE (II)

  5. REDUCTION PROCESS • Bias • Flat • Dark • Twilight • Wavelength calibration (Arcs) • Flux calibration (MILES stars) • Building the final spectra: • Composition of 5 spectral ranges REDUCEME (Cardiel 1999)

  6. SPECTRA OBTAINED (S/N)Å=129 (S/N)Å=31 (S/N)Å=33 (S/N)Å=47

  7. SPECTRA OBTAINED (S/N)Å=129 (S/N)Å=31 (S/N)Å=33 (S/N)Å=47

  8. SPECTRAL FITS (I)

  9. SPECTRAL FITS (II)

  10. SPECTRAL FITS (III)

  11. SPECTRAL FITS (IV)

  12. INDEX-INDEX DIAGRAMS

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