J/ApJS/201/11 Mid-infrared spectral variability atlas of YSOs (Kospal+, 2012)
Mid-infrared spectral variability atlas of young stellar objects.
Kospal A., Abraham P., Acosta-Pulido J.A., Dullemond C.P., Henning T.,
Kun M., Leinert C., Moor A., Turner N.J.
<Astrophys. J. Suppl. Ser. 201, 11 (2012)>
=2012ApJS..201...11K 2012ApJS..201...11K
ADC_Keywords: Atlases; Spectra, infrared; Stars, pre-main sequence
Keywords: circumstellar matter - infrared: stars - methods: data analysis -
stars: pre-main sequence - techniques: spectroscopic
Abstract:
The atlas presents medium-resolution mid-infrared spectra of low- and
intermediate mass pre-main sequence objects obtained by the ISOPHOT-S
spectrophotometer of the Infrared Space Observatory (ISO) and the
Infrared Spectrograph (IRS) of the Spitzer Space Telescope.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
spectra.dat 107 254 List of spectra
sp/* 33 254 ISO and Spitzer spectra
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Byte-by-byte Description of file: spectra.dat
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Bytes Format Units Label Explanations
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1- 19 A19 --- Name Name of the star
21 A1 --- M [LI] Low (L) or intermediate (I) mass star
23- 27 A5 --- SpT MK spectral type of the star
29- 30 I2 h RAh Hour of Right ascension (J2000.0)
32- 33 I2 min RAm Minute of Right ascension (J2000.0)
35- 39 F5.2 s RAs Second of Right ascension (J2000.0)
41 A1 --- DE- Sign of Declination sign (J2000.0)
42- 43 I2 deg DEd Degree of Declination (J2000.0)
45- 46 I2 arcmin DEm Arcminute of Declination (J2000.0)
48- 51 F4.1 arcsec DEs Arcsecond of Declination (J2000.0)
53- 64 A12 --- spFile File name in subdirectory sp
66- 70 A5 --- C Corrections applied to the spectrum (1)
72- 82 A11 "DD/MMM/YYYY" Obs.Date Date of the observation
84- 86 A3 --- Si-O [abs em] Silicate feature (2)
88- 90 A3 --- Ice [abs ] Ice features (2)
92- 93 A2 --- PAH [em ] PAH features in emission
95-103 A9 --- Type SED type of the star (3)
105-107 A3 --- Var [yes/no] Variability (4)
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Note (1): Corrections applied to the spectrum as follows:
M = memory correction
B = in the lack of dedicated OFF measurement, zodiacal background was
predicted and subtracted
O = position offset correction applied
! = spectra where the uncertainty of the correction is above 10%, thus they
are not used for variability analysis
Note (2): Feature code is em=emission, abs=absorption
Note (3): SED type of the star:
PAH dom. = the spectrum is dominated by PAH emission features
sil. em. = the 10 micrometer silicate feature is in emission
sil. abs. = the 10 micrometer silicate or ice bands are visible in absorption
Note (4): Variability code is:
yes = candidate variable source
no = constant source
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Byte-by-byte Description of file: sp/*
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Bytes Format Units Label Explanations
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3- 11 F9.6 um lambda Wavelength
13- 22 F10.6 Jy Flux ?=-99. Flux
24- 33 F10.6 Jy e_Flux ?=-99. Flux error
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Acknowledgements:
Agnes Kospal, akospal(at)rssd.esa.int
(End) Agnes Kospal [ESA], Patricia Vannier [CDS] 30-Jul-2012