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J/A+A/516/A46       HE 2327-5642 abundance analysis          (Mashonkina+, 2010)

The Hamburg/ESO R-process enhanced star survey (HERES). V. Detailed abundance analysis of the r-process enhanced star HE 2327-5642. Mashonkina L., Christlieb N., Barklem P.S., Hill V., Beers T.C., Velichko A. <Astron. Astrophys., 516, A46-46 (2010)> =2010A&A...516A..46M
ADC_Keywords: Stars, giant ; Spectroscopy ; Abundances ; Equivalent widths Keywords: stars: abundances - stars: atmospheres - stars: fundamental parameters - nuclear reactions, nucleosynthesis, abundances Abstract: We present a detailed abundance analysis of a strongly r-process enhanced giant star discovered in the HERES project, HE 2327-5642, for which [Fe/H]=-2.78, [r/Fe]=+0.99 [r = elements from r-process]. We determined the stellar parameters and element abundances by analyzing the high-quality VLT/UVES spectra. The surface gravity was calculated from the non-local thermodynamic equilibrium (NLTE) ionization balance between FeI, and FeII, and CaI and CaII. Description: The photometry was taken from Beers et al. 2007 (Cat. J/ApJS/168/128). High-quality spectra of this star was acquired during May-November 2005 with the VLT and UVES in dichroic mode. The BLUE390+RED580 (4h total integration time) and BLUE437+RED860 (10h) standard settings were employed to ensure a wide wavelength coverage. Objects: ----------------------------------------------------------------- RA (2000) DE Designation(s) ----------------------------------------------------------------- 23 30 37.1 -56 26 14 HE 2327-5642 = 2MASS J23303707-5626142 ----------------------------------------------------------------- File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table5.dat 37 44 Summary of the abundances of HE 2327-5642 table8.dat 109 290 Line data and abundances from an analysis of HE 2327-5642 refs.dat 233 64 References
See also: J/ApJS/168/128 : UBVRcIc photometry of FHB and metal-poor stars (Beers+, 2007) J/A+A/439/129 : HERES II. Spectroscopic analysis (Barklem+, 2005) Byte-by-byte Description of file: table5.dat
Bytes Format Units Label Explanations
1- 2 I2 --- Z Atomic number 4- 8 A5 --- El Atom/molecule 12- 15 F4.2 [-] epsSun Solar photosphere abundance (ε(H)=12) 17- 18 I2 --- Nlines Number of lines used to determine abundance 21- 25 F5.2 [-] eps Abundance of the element in HE 2327-5642 26 A1 --- n_eps [N] N when NLTE abundance 28- 31 F4.2 [-] e_eps ?=- rms uncertainty on eps 33- 37 F5.2 [-] [X/Fe] ?=- Abundance relative to iron
Byte-by-byte Description of file: table8.dat
Bytes Format Units Label Explanations
1- 2 I2 --- Z Atomic number 4- 8 A5 --- El Atom/molecule 10- 16 F7.2 0.1nm lambda Wavelength 17 A1 --- --- [-] 18- 24 F7.2 0.1nm lambda2 ? Second wavelength when interval 25- 28 F4.2 eV Eexc ?=- Excitation energy 30- 35 F6.3 [-] loggf ?=- Adopted gf-value 37- 41 A5 --- r_loggf Reference for loggf, in refs.dat file 43- 46 F4.2 [-] epsSun Solar photosphere abundance (ε(H)=12) 48- 52 F5.2 [-] epsLTE ? LTE abundance (ε(H)=12) 54- 58 F5.2 [-] epsNLTE ? NLTE abundance (1)(ε(H)=12) 60- 64 F5.2 [-] [X/Fe] ? Abundance relative to iron 66- 69 F4.1 0.1pm EW ? Equivalent width (mÅ) 70- 72 A3 --- n_EW [Syn ] from synthetic spectrum 74- 79 F6.3 [rad/s/cm3] G6/NH ? van der Waals damping constant log(Γ6/NH) at 10000K. 81- 83 A3 --- Model1 Model used (3) 89 A1 --- --- [:] 90- 94 A5 --- r_Model1 Reference for Model1, in refs.dat file 96- 98 A3 --- Model2 Model used (3) 104 A1 --- --- [:] 105-109 A5 --- r_Model2 Reference for Model2, in refs.dat file
Note (3): Models as follows: G6 = Γ6 HFS = hyper-fine splitting IS = isotopic structure
Byte-by-byte Description of file: refs.dat
Bytes Format Units Label Explanations
1- 5 A5 --- Ref Reference code 7- 25 A19 --- BibCode BibCode 27- 55 A29 --- Aut Author's name 56-233 A178 --- Com Comments
History: From electronic version of the journal References: Christlieb et al., Paper I 2004A&A...428.1027C Barklem et al., Paper II 2005A&A...439..129B, Cat. J/A+A/439/129 Jonsell et al., Paper III 2006A&A...451..651J Hayek et al., Paper IV 2009A&A...504..511H
(End) Patricia Vannier [CDS] 28-Sep-2010
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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