J/A+A/431/933 Abundances of NGC 7789 evolved stars (Tautvaisiene+, 2005)
Chemical composition of evolved stars in the open cluster NGC 7789.
Tautvaisiene G., Edvardsson B., Puzeras E., Ilyin I.
<Astron. Astrophys. 431, 933 (2005)>
=2005A&A...431..933T 2005A&A...431..933T
ADC_Keywords: Clusters, open ; Stars, horizontal branch ; Abundances
Keywords: stars: abundances - stars: atmospheres - stars: horizontal-branch -
Galaxy: open clusters and associations: individual: NGC 7789
Abstract:
High-resolution spectra of six giants and three core-helium-burning
"clump" stars in the open cluster NGC 7789 have been obtained with
the SOFIN spectrograph on the Nordic Optical Telescope to investigate
abundances of up to 20 chemical elements. Abundances of carbon were
studied using the C2 Swan (0, 1) band head at 5635.5Å. The
wavelength interval 7980-8130Å with strong CN features was analysed
in order to determine nitrogen abundances and 12C/13C isotope
ratios. The oxygen abundances were determined from the [O I] line at
6300Å.
Description:
The spectra were obtained at the Nordic Optical Telescope (NOT) with
the SOFIN echelle spectrograph in July of 2001.
Objects:
----------------------------------------------------------
RA (2000) DE Designation(s)
----------------------------------------------------------
23 57 03.3 +56 45 58 NGC 7789 415 = TYC 4009-1322-1
23 57 08.1 +56 43 22 NGC 7789 468 = TYC 4009-1161-1
23 57 11.1 +56 44 29 NGC 7789 501 = TYC 4009-1637-1
23 57 19.2 +56 40 52 NGC 7789 605 = GSC 4009-2065
23 57 25.4 +56 39 38 NGC 7789 665 = TYC 4009-1980-1
23 57 24.5 +56 48 30 NGC 7789 669 = TYC 4009-1293-1
23 57 29.6 +56 42 24 NGC 7789 732 = GSC 4009-1204
23 57 30.8 +56 50 51 NGC 7789 751 = TYC 4009-924-1
23 57 31.9 +56 41 22 NGC 7789 765 = TYC 4009-1557-1
----------------------------------------------------------
File Summary:
--------------------------------------------------------------------------------
FileName Lrecl Records Explanations
--------------------------------------------------------------------------------
ReadMe 80 . This file
table1.dat 50 117 Equivalent widths of lines
--------------------------------------------------------------------------------
Byte-per-byte Description of file: table1.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 6 F6.2 --- Ion Line identification: chemical element and
ionisation stage (e.g. 23.01 means singly
ionised vanadium, or V II)
8- 14 F7.2 0.1nm Lambda Wavelength (Angstroms)
16- 18 I3 0.1pm W415 ?=999 Equivalent width for the star K415
20- 22 I3 0.1pm W468 ?=999 Equivalent width for the star K468
24- 26 I3 0.1pm W501 ?=999 Equivalent width for the star K501
28- 30 I3 0.1pm W605 ?=999 Equivalent width for the star K605
32- 34 I3 0.1pm W665 ?=999 Equivalent width for the star K665
36- 38 I3 0.1pm W669 ?=999 Equivalent width for the star K669
40- 42 I3 0.1pm W732 ?=999 Equivalent width for the star K732
44- 46 I3 0.1pm W751 ?=999 Equivalent width for the star K751
48- 50 I3 0.1pm W765 ?=999 Equivalent width for the star K765
--------------------------------------------------------------------------------
Acknowledgements: Grazina Tautvaisiene, taut(at)mserv.itpa.lt
(End) Patricia Vannier [CDS] 17-Dec-2004