IRS spectra with features of crystalline silicates Virtual Observatory Resource

Authors
  1. Chen R.
  2. Luo A.
  3. Liu J.
  4. Jiang B.
  5. Published by
    CDS
Abstract

The crystalline silicate features are mainly reflected in infrared bands. The Spitzer Infrared Spectrograph (IRS) collected numerous spectra of various objects and provided a big database to investigate crystalline silicates in a wide range of astronomical environments. We apply the manifold ranking algorithm to perform a systematic search for the spectra with crystalline silicate features in the Spitzer IRS Enhanced Products available. In total, 868 spectra of 790 sources are found to show the features of crystalline silicates. These objects are cross-matched with the SIMBAD database as well as with the Large Sky Area Multi-object Fiber Spectroscopic Telescope (LAMOST)/DR2 (Luo et al. 2016, Cat. V/149). The average spectrum of young stellar objects shows a variety of features dominated either by forsterite or enstatite or neither, while the average spectrum of evolved objects consistently present dominant features of forsterite in AGB, OH/IR, post-AGB, and planetary nebulae. They are identified optically as early-type stars, evolved stars, galaxies and so on. In addition, the strength of spectral features in typical silicate complexes is calculated. The results are available through CDS for the astronomical community to further study crystalline silicates.

Keywords
  1. young-stellar-objects
  2. variable-stars
  3. pre-main-sequence-stars
  4. infrared-astronomy
  5. spectroscopy
  6. line-intensities
  7. stellar-spectral-types
  8. redshifted
Bibliographic source Bibcode
2016AJ....151..146C
See also HTML
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/151/146
IVOA Identifier IVOID
ivo://CDS.VizieR/J/AJ/151/146
Document Object Identifer DOI
doi:10.26093/cds/vizier.51510146

Access

Web browser access HTML
https://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/151/146
https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/151/146
http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/151/146
IVOA Table Access TAP
https://tapvizier.cds.unistra.fr/TAPVizieR/tap
Run SQL-like queries with TAP-enabled clients (e.g., TOPCAT).
IVOA Cone Search SCS
For use with a cone search client (e.g., TOPCAT).
https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/151/146/table7?
https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/151/146/table7?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/151/146/table7?
IVOA Cone Search SCS
For use with a cone search client (e.g., TOPCAT).
https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/151/146/Results?
https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/151/146/Results?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/151/146/Results?

History

2018-04-16T09:54:17Z
Resource record created
2018-04-16T09:54:17Z
Created
2018-05-17T12:06:38Z
Updated

Contact

Name
CDS support team
Postal Address
CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France
E-Mail
cds-question@unistra.fr