1999MNRAS.309..180S

Query : 1999MNRAS.309..180S

1999MNRAS.309..180S - Mon. Not. R. Astron. Soc., 309, 180-188 (1999/October-2)

Infrared spectra of evolved stars with unusual dust shells.

SYLVESTER R.J.

Abstract (from CDS):

New mid-infrared spectra are presented of a number of oxygen-rich evolved stars which have IRAS LRS (Low Resolution Spectrometer) spectra that were classified as showing SiC emission. Two of the sources, IRC-20445 and IRC-20461, show the unidentified infrared (UIR) bands superposed on silicate emission features. Both objects have been classified as M supergiants. Several other sources show three-component spectra, with peaks at 10, 11 and 13µm. The 13-µm source FI Lyr shows a narrow emission feature at 19µm. Emission by oxide grains may be responsible for the 11-, 13- and 19-µm features. One object, IRC-20455, shows a self-absorbed silicate feature. There is no clear evidence for SiC emission in any of the spectra: the LRS spectra were erroneously classified as showing SiC emission because of the relatively strong 11-µm emission.

Abstract Copyright: 1999, Royal Astronomical Society

Journal keyword(s): circumstellar matter - stars: mass-loss - supergiants - infrared: stars MNRAS.290..207

Simbad objects: 29

goto Full paper

goto View the references in ADS

Number of rows : 29
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 V* MZ Cas s*r 00 21 24.2850843864 +59 57 11.170030860   11.9 9.67     M2Ia-Iab 46 1
2 V* UY Cet AB* 00 27 06.4486825704 -06 36 16.881958296   10.61 9.32     M7 50 0
3 V* KK Per s*r 02 10 15.7846748496 +56 33 32.663347416 12.32 9.96 7.74 5.86 4.29 M2Iab-Ib 108 0
4 V* AD Per s*r 02 20 29.0035384536 +56 59 35.239755912 12.70 10.16 7.8490   7.1111 M3Iab 129 1
5 V* FZ Per s*r 02 20 59.6455018656 +57 09 29.964294288 12.75 10.20 7.9620   6.7185 M1Iab 119 0
6 V* V403 Per s*r 02 23 24.1101297168 +57 12 43.045313724 13.32 10.81 8.4020 6.67 5.21 M0Iab 70 0
7 BD-17 3840 AB* 13 23 11.8812573648 -18 19 29.249950764   10.98 9.91     M5 9 1
8 * sig Lib Mi* 15 04 04.2148093680 -25 16 55.090486596 6.86 4.91 3.21 1.60 0.33 M2.5III 195 0
9 V* WW Ser Mi* 15 32 24.8427970752 +03 38 27.497206536   12.65 11.96 12.69   M8 52 0
10 V* LY Ser LP? 15 38 16.6278054288 +24 31 18.714982836   8.12 6.89     MIII 36 0
11 V* ST Her S* 15 50 46.6232210160 +48 28 58.850853780   9.09 7.75     M6S-M7SIII: 171 0
12 CPD-56 8032 PN 17 09 00.9278385254 -56 54 47.863882536 11.24 11.48 11.04 11.067   [WC11] 277 0
13 IRC -30300 Mi* 17 30 03.9462004872 -26 28 02.929148256     14   14.145 M8+: 20 1
14 IRC -30301 AB* 17 30 27.0030512304 -26 45 29.107911492           M7+: 12 1
15 BD-21 4897 s?r 18 12 20.7023385888 -21 06 30.857925168 13.38 12.17 9.78 7.07 5.01 M1 33 1
16 IRC -20455 s*r 18 16 26.2749475992 -17 39 02.572614576   13.20 11.03     M2I 20 1
17 * eta Sgr LP? 18 17 37.6371989461 -36 45 42.084592381 6.37 4.67 3.11 1.55 0.23 M2III 149 0
18 BD-15 4915 s*r 18 18 25.7373266424 -15 18 13.152386628   11.37 8.824     M4I 19 1
19 V* TW Lyr Mi* 18 23 56.3194191648 +39 35 04.563812436   16.23 13.99 9.86   M6 38 1
20 * alf Lyr dS* 18 36 56.33635 +38 47 01.2802 0.03 0.03 0.03 0.07 0.10 A0V 2787 1
21 V* FI Lyr AB* 18 42 04.8294795960 +28 57 29.807242344   10.75 9.58     M9 47 1
22 V* V1293 Aql AB* 19 33 07.7658248064 +05 01 45.798980592   8.44 6.63     M4III 40 1
23 V* ES Del Mi* 20 43 58.4157165072 +19 14 16.912347036       8.38   M10 24 1
24 * eps Cyg ** 20 46 12.6722768426 +33 58 13.182037125 4.370 3.520 2.480 1.73 1.19 K0III 519 0
25 V* HT Aqr AB* 21 40 19.8123886056 -01 47 09.897522540   10.57 9.29     M8 22 0
26 DO 40011 AB* 21 43 48.3998977176 +45 37 52.167125964       11.60   M6 9 1
27 V* GN Cep Mi* 21 59 52.2584803584 +57 21 48.677669028   13.94 12.16 11.35   M6 23 0
28 * bet Peg LP* 23 03 46.45746 +28 04 58.0336 6.05 4.09 2.42 0.92 -0.40 M2.5II-III 606 1
29 V* Z Cas Mi* 23 44 31.6014388200 +56 34 52.983926724     12.91 10.15   M7-e 83 1

To bookmark this query, right click on this link: simbad:objects in 1999MNRAS.309..180S and select 'bookmark this link' or equivalent in the popup menu