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Query : 2008MNRAS.386...22T |
2008MNRAS.386...22T - Mon. Not. R. Astron. Soc., 386, 22-46 (2008/May-1)
Integral field spectroscopy of planetary nebulae: mapping the line diagnostics and hydrogen-poor zones with VLT FLAMES.
TSAMIS Y.G., WALSH J.R., PEQUIGNOT D., BARLOW M.J., DANZIGER I.J. and LIU X.-W.
Abstract (from CDS):
It is argued that these results provide further evidence for the existence in run-of-the-mill PNe of a distinct nebular component consisting of hydrogen-deficient, super-metal-rich plasma. The zones containing this posited component appear as undulations in the Cii and Oii ORL abundance diagnostics of about 2 spatial pixels across, and so any associated structures should have physical sizes of less than ∼1000 astronomical units. Regarding the origin of the inferred zones, we propose that circumstellar discs, Abell 30-type knots, or Helix-type cometary globules may be involved. Implications for emission-line studies of nebulae are discussed.
Abstract Copyright: ©2008 The Authors. Journal compilation © 2008 RAS
Journal keyword(s): ISM: abundances - planetary nebulae: general - planetary nebulae: individual: NGC 5882 - planetary nebulae: individual: NGC 6153 - planetary nebulae: individual: NGC 7009
Simbad objects: 12
Number of rows : 12 |
N | Identifier | Otype |
ICRS (J2000) RA |
ICRS (J2000) DEC |
Mag U | Mag B | Mag V | Mag R | Mag I | Sp type |
#ref
1850 - 2024 |
#notes |
---|---|---|---|---|---|---|---|---|---|---|---|---|
1 | PN A66 30 | PN | 08 46 53.4639874872 | +17 52 46.369394580 | 14.23 | 14.30 | 13.47 | [WC5] | 411 | 0 | ||
2 | CD-44 4961 | pA* | 08 56 14.1799968840 | -44 43 10.721249580 | 10.55 | 9.176 | F3e | 73 | 1 | |||
3 | ACO 1656 | ClG | 12 59 44.40 | +27 54 44.9 | ~ | 4803 | 2 | |||||
4 | NGC 5882 | PN | 15 16 49.9562553264 | -45 38 58.616280132 | 11.9 | 10.9 | ~ | 274 | 0 | |||
5 | PN Mz 3 | PN | 16 17 13.3915382496 | -51 59 10.711893480 | 10.8 | 14.00 | O9.5 | 349 | 0 | |||
6 | CD-38 10980 | WD* | 16 23 33.8380498896 | -39 13 46.161043572 | 9.916 | 10.885 | 11.029 | 10.936 | 10.841 | DA2 | 483 | 0 |
7 | NGC 6153 | PN | 16 31 30.5708444544 | -40 15 12.646208700 | 10.7 | 15.55 | ~ | 303 | 0 | |||
8 | IRAS 18006-3213 | OH* | 18 03 52.8259593264 | -32 12 59.377416948 | 12.24 | 9.71 | O-rich | 37 | 0 | |||
9 | PN Hf 2-2 | PN | 18 32 30.9015918072 | -28 43 20.276106312 | 15.90 | ~ | 96 | 0 | ||||
10 | PN A66 58 | PN | 19 18 20.476 | +01 46 59.62 | [WC4] | 315 | 0 | |||||
11 | NGC 7009 | PN | 21 04 10.8155187648 | -11 21 48.580157556 | 12.48 | 12.07 | ~ | 996 | 1 | |||
12 | NGC 7293 | PN | 22 29 38.5454047152 | -20 50 13.747242408 | 11.894 | 13.158 | 13.524 | 13.689 | 13.898 | DAO.5 | 943 | 0 |
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