SIMBAD references

2016AJ....151..146C - Astron. J., 151, 146-146 (2016/June-0)

A systematic search for the spectra with features of crystalline silicates in the Spitzer IRS enhanced products.


Abstract (from CDS):

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. 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.

Abstract Copyright: © 2016. The American Astronomical Society. All rights reserved.

Journal keyword(s): catalogs - circumstellar matter - infrared: ISM - infrared: stars - ISM: lines and bands - stars: variables: T Tauri, Herbig Ae/Be

VizieR on-line data: <Available at CDS (J/AJ/151/146): table3.dat table4.dat table5.dat table6.dat table7.dat>

CDS comments: 2MASS J03279019+3119548 is a misprint for 2MASS J03285119+3119548.

Simbad objects: 787

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