2007ApJ...670.1137V

Query : 2007ApJ...670.1137V

2007ApJ...670.1137V - Astrophys. J., 670, 1137-1141 (2007/December-1)

Possible precession motion in the bipolar proto-planetary nebula IRAS 17441-2411.

VOLK K., KWOK S. and HRIVNAK B.J.

Abstract (from CDS):

Mid-infrared imaging of two bipolar proto-planetary nebulae, IRAS 17150-3224 and IRAS 17441-2411, was obtained with the Gemini telescope. Dust emissions are detected in both the bipolar lobes and in the equatorial region of IRAS 17441-2411. In particular, the orientation of the axis of the infrared torus is found to be offset by 23° from the bipolar axis. If the torus is responsible for or related to the collimation of the bipolar outflow, this raises the possibility that the outflow has undergone precession over the last 100 years.

Abstract Copyright: ∼

Journal keyword(s): Stars: Circumstellar Matter - Infrared: Stars - ISM: Planetary Nebulae: General - Stars: AGB and Post-AGB

Simbad objects: 9

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Number of rows : 9
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 NGC 2440 PN 07 41 55.34603 -18 12 30.4117   11.469 10.104     ~ 665 2
2 PN My 59 PN 10 23 09.1381004472 -60 32 42.103742784           O(H)7-9I 136 2
3 RAFGL 6815S pA* 17 18 19.8040606320 -32 27 21.547417932           G2I 153 0
4 RAFGL 5385 pA* 17 47 13.48944 -24 12 51.4404           F4I 79 0
5 PN M 1-37 PN 18 05 25.8092901000 -28 22 04.282489956     14.70     [WC11]? 135 0
6 * lam Sgr PM* 18 27 58.2407185 -25 25 18.114589 4.75 3.85 2.81 2.06 1.50 K1IIIb 290 0
7 OH 031.0+00.0 OH* 18 47 41.13768 -01 45 11.4048           O-rich 153 1
8 * ksi02 Sgr * 18 57 43.8001892867 -21 06 23.967339435 5.82 4.69 3.51 2.71 2.12 G8/K0II/III 123 0
9 NGC 6881 PN 20 10 52.45 +37 24 42.4           ~ 213 0

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