J/MNRAS/409/881 Spectrosocopy of NGC 7009 (Phillips+, 2010)
Mapping and spectroscopy of the planetary nebula NGC 7009 in the visual and
infrared.
Phillips J.P., Cuesta L.C., Ramos-Larios G.
<Mon. Not. R. Astron. Soc., 409, 881-902 (2010)>
=2010MNRAS.409..881P 2010MNRAS.409..881P
ADC_Keywords: Planetary nebulae ; Spectroscopy
Keywords: dust, extinction - ISM: jets and outflows -
planetary nebulae: individual: NGC 7009 - infrared: ISM
Abstract:
NGC 7009 is a fascinating example of a high-excitation, elliptical
planetary nebula (PN) containing circumnebular rings, and FLIERs and
jets along the major axis. We present visual spectroscopy along
multiple position angles through the nucleus, taken with the
Observatorio Astronomico Nacional (Mexico); mid-infrared (MIR)
spectroscopy and imaging acquired using the Infrared Space Observatory
(ISO) and Spitzer Space Telescope (SST), and narrow-band imaging
obtained using the Hubble Space Telescope (HST).
Objects:
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RA (2000) DE Designation(s)
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21 04 10.8 -11 21 48 NGC 7009 = NAME SATURN NEBULA
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 150 117 Line intensities for six sectors of the
envelope in NGC 7009
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Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 16 A16 --- Ion Ion name
17- 24 F8.3 0.1nm lambda Wavelength
26- 33 E8.3 --- F(T) ?=- Line intensity for total emission (T) (1)
35- 42 E8.3 --- e_F(T) ?=- rms uncertainty on FT
44- 51 E8.3 --- F(I) ?=- Line intensity for sector I (nucleus) (1)
53- 60 E8.3 --- e_F(I) ?=- rms uncertainty on FI
62- 69 E8.3 --- F(II) ?=- Line intensity for sector II
(bright elliptical inner rim structure) (1)
71- 78 E8.3 --- e_F(II) ?=- rms uncertainty on FII
80- 87 E8.3 --- F(III) ?=- Line intensity for sector III
(fainter, more spherical enveloping shell) (1)
89- 96 E8.3 --- e_F(III) ?=- rms uncertainty on FIII
98-105 E8.3 --- F(IV) ?=- Line intensity for sector IV
(jet-like feature) (1)
107-114 E8.3 --- e_F(IV) ?=- rms uncertainty on FIV
116-123 E8.3 --- F(V) ?=- Line intensity for sector V (ansae) (1)
125-132 E8.3 --- e_F(V) ?=- rms uncertainty on FV
134-141 E8.3 --- F(VI) ?=- Line intensity for sector VI
(external halo) (1)
143-150 E8.3 --- e_F(VI) ?=- rms uncertainty on FVI
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Note (1): Line intensity relative to Hβ.
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Sector F(Hβ) e_F(Hβ)
(mW/m2) (mW/m2)
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T 4.75E+05 3.38E+04
I 7.42E+04 6.31E+03
II 3.00E+05 1.98E+04
III 7.73E+04 4.23E+03
IV 5.45E+03 1.18E+03
V 3.68E+03 5.30E+02
VI 9.18E+02 5.74E+01
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History:
From electronic version of the journal
(End) Patricia Vannier [CDS] 06-May-2011