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Query : 2006MNRAS.369..875Z |
2006MNRAS.369..875Z - Mon. Not. R. Astron. Soc., 369, 875-890 (2006/June-3)
The planetary nebula population of the Sagittarius dwarf spheroidal galaxy.
ZIJLSTRA A.A., GESICKI K., WALSH J.R., PEQUIGNOT D., VAN HOOF P.A.M. and MINNITI D.
Abstract (from CDS):
Hubble Space Telescope images of three of the PNe reveal well-developed bipolar morphologies, and provide clear detections of the central stars. All three stars with deep spectra show WR lines, suggesting that the progenitor mass and metallicity determines whether a PN central star develops a WR spectrum. One Sgr PN belongs to the class of IR-[WC] stars. Expansion velocities are determined for three nebulae. Comparison with hydrodynamical models indicates an initial density profile of ρ ∝ r–3. This is evidence for increasing mass-loss rates on the asymptotic giant branch. Peak mass-loss rates are indicated of ∼10–4M☉/yr.
The IR-[WC] PN, He2-436, provides the sole direct detection of dust in a dwarf spheroidal galaxy, to date.
Abstract Copyright: 2006 The Authors. Journal compilation © 2006 RAS
Journal keyword(s): stars: abundances - stars: mass-loss - planetary nebulae: general - galaxies: individual: Sagittarius dwarf spheroidal
Simbad objects: 27
Number of rows : 27 |
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 BoBn 1 | PN | 00 37 16.03 | -13 42 58.6 | 16 | ~ | 131 | 1 | ||||
2 | LHA 115-N 6 | PN | 00 41 27.7392128784 | -73 47 06.468599004 | 16.82 | 16.84 | 15.82 | 16.92 | ~ | 59 | 0 | |
3 | NAME SMC | G | 00 52 38.0 | -72 48 01 | 2.79 | 2.2 | ~ | 11145 | 1 | |||
4 | NAME Phoenix Dwarf Galaxy | Sy1 | 01 51 06.3 | -44 26 41 | 13.48 | 13.2 | 12.69 | ~ | 533 | 2 | ||
5 | NAME LMC | G | 05 23 34.6 | -69 45 22 | 0.4 | ~ | 17428 | 0 | ||||
6 | LHA 120-N 133 | PN | 05 24 20.7467383224 | -70 05 01.601773404 | 15.939 | 16.236 | 15.368 | 15.120 | 16.556 | [WC4/5] | 68 | 0 |
7 | IRAS F05258-7343 | pA? | 05 24 35.9730395808 | -73 40 40.240094808 | 16.48 | 16.64 | WC | 61 | 0 | |||
8 | NGC 2419 | GlC | 07 38 08.51 | +38 52 54.9 | 10.05 | ~ | 931 | 0 | ||||
9 | PN K 2-4 | PN? | 12 18 18.5 | +11 03 08 | ~ | 30 | 1 | |||||
10 | Z 16-38 | Sy1 | 13 16 50.1765597336 | -03 03 45.766583496 | 15.5 | 14.689 | ~ | 25 | 1 | |||
11 | BD+33 2642 | pA* | 15 51 59.8854348048 | +32 56 54.329485272 | 9.806 | 10.61 | 10.73 | 10.884 | 10.961 | O7p | 429 | 0 |
12 | 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 |
13 | NAME Galactic Center | reg | 17 45 39.60213 | -29 00 22.0000 | ~ | 14407 | 0 | |||||
14 | V* V4334 Sgr | CV* | 17 52 32.69352 | -17 41 08.0160 | F2Ia | 372 | 0 | |||||
15 | WRAY 16-417 | PN | 18 44 14.5999440552 | -30 19 37.389101520 | 14.0 | 14.10 | ~ | 35 | 0 | |||
16 | M 54 | GlC | 18 55 03.33 | -30 28 47.5 | ~ | 1067 | 0 | |||||
17 | NAME SDG | G | 18 55 19.0 | -30 32 43 | 4.5 | 3.6 | ~ | 2186 | 2 | |||
18 | PN Hb 8 | PN | 19 05 35.9385167760 | -33 11 38.011972668 | 14.47 | 13.22 | 15.39 | ~ | 72 | 0 | ||
19 | PN StWr 2-21 | PN | 19 14 23.35320 | -32 34 16.9572 | [WO2] | 32 | 0 | |||||
20 | WRAY 16-423 | PN | 19 22 10.63 | -31 30 38.7 | 13.0 | 14.20 | ~ | 49 | 0 | |||
21 | Cl Arp 2 | GlC | 19 28 44.11 | -30 21 20.3 | 12.41 | ~ | 354 | 0 | ||||
22 | Hen 2-436 | PN | 19 32 06.7087636488 | -34 12 57.520724796 | 13.3 | [WC4] | 78 | 0 | ||||
23 | Cl Terzan 8 | GlC | 19 41 44.41 | -33 59 58.1 | 11.54 | ~ | 321 | 0 | ||||
24 | ESO 340-34 | PN? | 20 28 21.9439640712 | -38 30 51.259028544 | 17.96 | 16.54 | ~ | 4 | 0 | |||
25 | PN G006.0-41.9 | PN | 21 05 53.5729024944 | -37 08 40.379769888 | 16.52 | 16.32 | ~ | 42 | 0 | |||
26 | NAME Local Group | GrG | ~ | ~ | ~ | 8387 | 0 | |||||
27 | NAME Galactic Bulge | reg | ~ | ~ | ~ | 4297 | 0 |
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