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J/ApJ/723/658      Abundances of the halo PN BoBn 1              (Otsuka+, 2010)

The origin and evolution of the halo PN BoBn 1: from a viewpoint of chemical abundances based on multiwavelength spectra. Otsuka M., Tajitsu A., Hyung S., Izumiura H. <Astrophys. J., 723, 658-683 (2010)> =2010ApJ...723..658O
ADC_Keywords: Planetary nebulae ; Abundances ; Spectroscopy Keywords: dust, extinction - ISM: abundances - planetary nebulae: individual (BoBn 1, K 648) - stars: Population II Abstract: We have performed a comprehensive chemical abundance analysis of the extremely metal-poor ([Ar/H]←2) halo planetary nebula (PN) BoBn 1 based on International Ultraviolet Explorer archive data, Subaru/High-Dispersion Spectrograph spectra, VLT/UVES archive data, and Spitzer/IRS spectra. We have detected over 600 lines in total and calculated ionic and elemental abundances of 13 elements using detected optical recombination lines (ORLs) and collisionally excited lines (CELs). The estimations of C, N, O, and Ne abundances from the ORLs and Kr, Xe, and Ba from the CELs are done the first for this nebula, empirically and theoretically. We have detected five fluorine and several slow neutron capture elements (the s-process). The amounts of [F/H], [Kr/H], and [Xe/H] suggest that BoBn 1 is the most F-rich among F-detected PNe and is a heavy s-process element rich PN. We have confirmed dust in the nebula that is composed of amorphous carbon and polycyclic aromatic hydrocarbons with a total mass of 5.8x10-6M. The photoionization models built with non-LTE theoretical stellar atmospheres indicate that the progenitor was a 1-1.5M star that would evolve into a white dwarf with an ∼0.62M core mass and ∼0.09M ionized nebula. We have measured a heliocentric radial velocity of +191.6±1.3km/s and expansion velocity 2Vexp of 40.5±3.3km/s from an average over 300 lines. Description: The spectra of BoBn 1 were taken using the High-Dispersion Spectrograph (HDS) attached to one of the two Nasmyth foci of the 8.2m Subaru telescope atop Mauna Kea, Hawaii on 2008 October 6 (program ID: S08B-110, PI: M. Otsuka). The full width at half-maximum (FWHM) of the image is ∼1". Spectra were taken for two wavelength ranges, 3600-5400Å (hereafter, the blue region spectra) and 4600-7500Å (the red region spectra). We also used archival high-dispersion spectra of BoBn 1, which are available from the European Southern Observatory (ESO) archive. These spectra were observed on 2002 August ("UVES1"; program ID: 069.D-0413, PI: M. Perinotto) and 2007 June ("UVES2"; program ID: 079.D-0788, PI: A. Zijlstra), using the Ultraviolet Visual Echelle Spectrograph (UVES) at the Nasmyth B focus of KUEYEN, the second of the four 8.2m telescopes of the ESO Very Large Telescope (VLT) at Paranal, Chile. These archive spectra covered the wavelength range of 3300-6600Å in UVES1 and 3300-9500Å in UVES2. We complemented optical spectra with UV spectra obtained by the International Ultraviolet Explorer (IUE) retrieved from the Multi-mission Archive at the STScI (MAST). We used two data sets (program IDs: P30333, PI: A. Zijlstra; P30652, PI: J. Bernard-Salas), taken by the Spitzer Space Telescope with the Infrared Spectrograph (IRS) in 2006 December, from the Spitzer Science Center. Objects: ------------------------------------------------------ RA (2000) DE Designation(s) ------------------------------------------------------ 00 37 16.03 -13 42 58.6 PN BoBn 1 = PN G108.4-76.1 ------------------------------------------------------ File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table23.dat 88 624 Observed and reddening corrected line ratios and identifications of BoBn 1
See also: IV/24 : Catalogue of Galactic Planetary Nebulae (Kohoutek, 2001) VI/110 : Final Merged Log of IUE Observations (NASA-ESA, 2000) V/84 : Strasbourg-ESO Catalogue of Galactic Planetary Nebulae (Acker+, 1992) J/ApJ/714/1096 : Galactic planetary nebulae (Stanghellini+, 2010) J/PAZh/35/574 : He, C, N and O abundances in PNe (Milanova+, 2009) J/A+A/479/155 : Proper motions of Galactic Planetary Nebulae (Kerber+, 2008) J/A+A/475/217 : Classification of planetary nebulae (Quireza+, 2007) J/MNRAS/349/793 : Galactic PNe abundances (Perinotto+, 2004) J/A+A/408/1029 : Coordinates of Galactic planetary nebulae (Kerber+, 2003) J/AN/323/484 : Accurate coordinates of Planetary Nebulae (Kohoutek+, 2002) J/other/RMxAA/37.115 : Optical coordinates of southern PNe (Kimeswenger+, 2001) J/A+AS/132/13 : Planetary nebulae radial velocities (Durand+ 1998) J/ApJS/117/361 : PNe in NRAO VLA Sky Survey (Condon+ 1998) J/AJ/112/1188 : HK survey emission-line candidates (Beers+ 1996) J/A+AS/94/399 : Absolute fluxes and distances of PN (Cahn+, 1992) Byte-by-byte Description of file: table23.dat
Bytes Format Units Label Explanations
1- 7 F7.2 0.1nm lam ? Observed heliocentric wavelength λ (Å) 9- 16 A8 --- Ion Ion identification 18- 24 F7.2 0.1nm lam0 Laboratory wavelength in Angstroms 26- 29 A4 --- Comp Component (1, 2 or Tot.) 31- 36 F6.3 --- f(lam) Interstellar extinction coefficient (1) 38- 44 F7.3 --- I(lam) Reddening corrected flux (1) 46- 51 F6.3 --- e_I(lam) Uncertainty in CFlux 53- 57 A5 --- Obs Observation source (HDS, UVES1 or UVES2) (2) 59- 88 A30 --- Note Additional note
Note (1): Relative to Hβ where I(Hβ)=100. Note (2): Observation as follows: HDS = Subaru/High-Dispersion Spectrograph on 2008 October 6 (PID: S08B-110) UVES1 = VLT/Ultraviolet Visual Echelle Spectrograph on 2002 August (PID: 069.D-0413) UVES2 = VLT/Ultraviolet Visual Echelle Spectrograph on 2007 June (PID: 079.D-0788)
History: From electronic version of the journal
(End) Greg Schwarz [AAS], Emmanuelle Perret [CDS] 18-Jul-2012
The document above follows the rules of the Standard Description for Astronomical Catalogues.From this documentation it is possible to generate f77 program to load files into arrays or line by line

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