2005MNRAS.364..849P

Query : 2005MNRAS.364..849P

2005MNRAS.364..849P - Mon. Not. R. Astron. Soc., 364, 849-863 (2005/December-2)

Hot dust haloes in planetary nebulae.

PHILLIPS J.P. and RAMOS-LARIOS G.

Abstract (from CDS):

We point out that many planetary nebulae (PNe) have large infrared indices (H-KS), and that this is likely to result from the presence of hot grains, and/or H2S(1) line emission at λ= 2.122µm. We are able to identify two groups of sources associated with each of these mechanisms, both of which appear to possess distinct physical characteristics. One difference between these groups concerns the near-infrared dimensions of the sources. It appears that hot dust outflows frequently have sizes θ(KS) > θ(H) > θ(J). Four of the sources are particularly extreme in this regard, and show emission extending well outside of the primary shells. We propose that this is likely to arise from high-temperature grains located in low-density haloes. The location of such grains at large distances from the central stars represents a challenge for any mechanism purporting to explain this phenomenon. The most likely explanation appears to be in terms of photon heating of very small grains.

Abstract Copyright: 2005 The Authors. Journal compilation © 2005 RAS

Journal keyword(s): planetary nebulae: general - infrared: ISM

CDS comments: PN BD +30 = BD+30 3639.

Simbad objects: 45

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Number of rows : 45
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 40 PN 00 13 01.0170097248 +72 31 19.033338720   11.63 11.46     [WC8] 632 2
2 PN M 2-2 PN 04 13 15.0286446504 +56 56 58.407808596           ~ 96 0
3 IC 418 PN 05 27 28.2059533560 -12 41 50.282287764   9.405 9.010 10.118   O7fp 1059 2
4 PN K 3-69 PN 05 41 22.1331492696 +39 15 07.885515492           ~ 43 0
5 PN M 1-7 PN 06 37 20.9195312048 +24 00 35.467965071           ~ 122 0
6 PN M 1-8 PN 06 53 33.795 +03 08 26.96   11.7       ~ 104 0
7 NGC 2346 PN 07 09 22.5215800440 -00 48 23.610997332   11.76 11.58     A5V 592 0
8 PN M 1-11 PN 07 11 16.6948815960 -19 51 02.898476424     13.5     WC10-11 153 0
9 PN M 1-12 PN 07 19 21.4685188440 -21 43 55.402228344     14.08     WC10-11 125 0
10 PN M 1-13 PN 07 21 15.037 -18 08 34.65   11.0       ~ 100 0
11 PN M 3-5 PN 08 02 28.95627 -27 41 54.9960         16.135 ~ 89 1
12 PN A66 30 PN 08 46 53.4639874872 +17 52 46.369394580   14.23 14.30 13.47   [WC5] 431 0
13 WRAY 16-40 PN 09 18 01.3172902776 -54 39 29.165596128   14 15.00     ~ 81 0
14 NGC 3132 PN 10 07 01.7656422504 -40 26 11.130553032   10.14 10.01     A2V 423 1
15 NGC 3211 PN 10 17 50.544 -62 40 12.10   19.4 11.50     ~ 185 0
16 NGC 3918 PN 11 50 17.7709504944 -57 10 57.017302428   10.0 8.5     ~ 390 1
17 IC 4406 PN 14 22 26.1440976888 -44 09 02.185112988   11.5 10.90     ~ 294 1
18 HD 330036 PN 15 51 15.9290064932 -48 44 58.559111355   11.759 10.892 10.921   F5III-IVe 164 0
19 PN Mz 3 PN 16 17 13.3915382496 -51 59 10.711893480   10.8 14.00     O9.5 359 0
20 PN Vd 4 PN 16 50 25.3507823664 -39 08 19.095453096     15.50     ~ 37 0
21 PN M 2-9 PN 17 05 37.96152 -10 08 32.5068           ~ 532 0
22 PN K 2-17 PN 17 09 35.8681643016 -52 13 02.349745824           ~ 32 0
23 PN G007.9+10.1 PN 17 26 38.0860318968 -16 48 30.011487660           ~ 24 0
24 PN M 1-20 PN 17 28 57.6165015264 -19 15 54.033719256           ~ 136 0
25 PN Tc 1 PN 17 45 35.2879212240 -46 05 23.717122728   11.30 11.49     PCyg 280 0
26 NGC 6567 PN 18 13 45.1636643352 -19 04 34.071637152     10.9     [WC5/6] 277 0
27 PN SwSt 1 PN 18 16 12.2834104368 -30 52 07.906578996   12.1 11.10     [WC9/10] 301 0
28 PN M 2-39 PN 18 22 01.1620945464 -24 10 39.916889760     15.00     wels 82 0
29 PN M 2-43 PN 18 26 40.0500205632 -02 42 57.364170912     15.7     [WC7/8] 127 0
30 PN M 3-27 PN 18 27 48.2638650624 +14 29 06.066648996           ~ 84 0
31 NGC 6644 PN 18 32 34.70280 -25 07 44.1588           ~ 198 0
32 PN V-V 3 PN 18 37 11.11 -19 02 21.9           ~ 47 0
33 PN K 3-15 PN 18 51 41.54 +09 54 52.6           ~ 36 0
34 M 57 PN 18 53 35.0967659112 +33 01 44.883287544   15.405 15.769 15.901 16.062 DA(O?) 868 2
35 NGC 6741 PN 19 02 37.10 -00 26 56.7     9.6     ~ 353 0
36 PN K 3-35 PN 19 27 43.9749997920 +21 30 02.907990216           O-rich 161 0
37 HD 184738 PN 19 34 45.2337620448 +30 30 58.950651240   10.41 10.44     [WC9] 976 0
38 PN K 3-53 PN 20 03 22.46 +27 00 54.8           ~ 43 0
39 NGC 7027 PN 21 07 01.571952 +42 14 10.47120   10.358 8.831 10.157   ~ 2541 1
40 NGC 7048 PN 21 14 15.1876901775 +46 17 17.103824106           ~ 137 1
41 PN M 1-77 PN 21 19 07.3684546776 +46 18 47.160663156   12.34 11.91 12.05   B 79 0
42 IC 5117 PN 21 32 30.96912 +44 35 47.5404           ~ 310 1
43 PN M 2-49 PN 21 43 17.60 +50 25 14.4           ~ 45 0
44 PN Bl 2-1 PN 22 20 16.62720 +58 14 16.5624           ~ 53 1
45 PN Me 2-2 PN 22 31 43.6753782000 +47 48 03.836846628   9.3       ~ 160 0

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