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J/ApJ/671/1669      Magellanic cloud PNe in the IR  (Stanghellini+, 2007)

Spitzer infrared spectrograph observations of Magellanic cloud planetary nebulae: the nature of dust in low-metallicity circumstellar ejecta. Stanghellini L., Garcia-Lario P., Garcia-Hernandez D.A., Perea-Calderon J.V., Davies J.E., Manchado A., Villaver E., Shaw R.A. <Astrophys. J., 671, 1669-1684 (2007)> =2007ApJ...671.1669S
ADC_Keywords: Magellanic Clouds ; Planetary nebulae Keywords: dust, extinction - Magellanic Clouds - planetary nebulae: general Abstract: We present 5-40um spectroscopy of 41 planetary nebulae (PNe) in the Magellanic Clouds, observed with the Infrared Spectrograph on board the Spitzer Space Telescope. The spectra show the presence of a combination of nebular emission lines and solid state features from dust, superimposed on the thermal IR continuum. By analyzing the 25 LMC and 16 SMC PNe in our sample we found that the IR spectra of 14 LMC and four SMC PNe are dominated by nebular emission lines, while the other spectra show solid state features. Description: The spectral data were acquired with the IRS on board the Spitzer Space Telescope between 2005 July 14 and November 14 as part of a General Observer program (No. 20443). File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table1.dat 64 41 Target selection table2.dat 60 41 Observing Log table3.dat 46 41 Characteristics of the IRS spectra
See also: J/MNRAS/234/583 : Abundances in Magellanic Cloud planetary nebulae (Monk+ 1988) J/ApJ/365/471 : Planetary nebulae as standard candles. VI. (Jacoby+, 1990) J/ApJS/75/407 : LMC + SMC PNe optical spectroscopy. I (Meatheringham+ 1991) J/ApJS/76/1085 : LMC + SMC PNe optical spectroscopy. II (Meatheringham+ 1991) J/ApJS/83/87 : LMC + SMC PNe optical spectroscopy. III (Vassiliadis+ 1992) J/A+AS/102/451 : Emission-line stars and PNe in the SMC (Meyssonnier+ 1993) J/ApJ/417/209 : Faint planetary nebulae in Magellanic Clouds (Jacoby+, 1993) J/A+AS/116/95 : Magellanic Clouds PNe line intensities (Leisy+, 1996) J/A+AS/121/407 : LMC planetary nebulae positions (Leisy+ 1997) J/AJ/123/269 : New SMC planetary nebulae (Jacoby+, 2002) J/ApJ/622/294 : STIS UV spectra of LMC planetary nebulae (Stanghellini+ 2005) J/MNRAS/365/401 : New planetary nebulae in LMC (Reid+, 2006) J/MNRAS/373/521 : Complete catalog of planetary nebulae in LMC (Reid+, 2006) J/A+A/456/451 : Magellanic Clouds PNe abundances (Leisy+, 2006) J/A+A/472/101 : Chemical evolution of SMC planetary nebulae (Idiart+, 2007) Byte-by-byte Description of file: table1.dat
Bytes Format Units Label Explanations
1- 12 A12 --- Name Object name (SMP LMC NNN or SMP SMC NNN) 14- 17 F4.2 arcsec R ? Radius 19- 33 A15 --- MType Morphological type 35- 64 A30 --- Notes Notes
Byte-by-byte Description of file: table2.dat
Bytes Format Units Label Explanations
1- 12 A12 --- Name Object name (SMP LMC NNN or SMP SMC NNN) 13- 14 I2 h RAh Right ascension (J2000.0) 16- 17 I2 min RAm Right ascension (J2000.0) 19- 23 F5.2 s RAs Right ascension (J2000.0) 25 A1 --- DE- Declination sign (J2000.0) 26- 27 I2 deg DEd Declination (J2000.0) 29- 30 I2 arcmin DEm Declination (J2000.0) 32- 35 F4.1 arcsec DEs Declination (J2000.0) 37- 46 A10 "YYYY/MM/DD" Obs.Date Observation Date 48- 55 I8 --- ID Data set identification number 57- 60 A4 --- IRS IRS observing campaign
Byte-by-byte Description of file: table3.dat
Bytes Format Units Label Explanations
1- 12 A12 --- Name Object name (SMP LMC NNN or SMP SMC NNN) 14- 16 I3 K Tdust Dust temperature of the continuum, fitted as a blackbody 18- 22 F5.1 [mW/m2] logFIR Infrared flux derived from the integration of the continuum dust spectra between 5 and 40um 24- 28 F5.2 --- IRE ?=- IR excess 30- 32 A3 --- DType Dust type (1) 35- 46 A12 --- Ext Excitation class of the PN, based on the observed emission lines
Note (1): 3 classes are defined, as follows: F = featureless (no evidence of solid-state features) CRD = Carbon-rich dust ORD = Oxygen-rich dust
History: From electronic version of the journal
(End) Patricia Vannier [CDS] 29-Mar-2010
The document above follows the rules of the Standard Description for Astronomical Catalogues.From this documentation it is possible to generate f77 program to load files into arrays or line by line

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