J/A+A/561/A36 The LickX Spectra library (Worthey+, 2014)
The LickX Spectra.
Worthey G., Bianca Danilet A., Faber S.M.
<Astron. Astrophys. 561, A36 (2014)>
=2014A&A...561A..36W 2014A&A...561A..36W
ADC_Keywords: Populations, stellar ; Equivalent widths ; Balmer lines ;
Spectroscopy
Keywords: catalogs - stars: abundances - galaxies: stellar content -
stars: fundamental parameters
Abstract:
Collections of stellar spectra, often called stellar libraries, are
useful in a variety of applications in the field of stellar
populations.
This is an attempt to improve the much-used Lick library of stellar
spectra by removing jitter from the wavelength scale via
cross-correlation, and calling the result the LickX library.
Description:
Table2 lists spectral index measurements from the stellar spectral
library that forms the basis of the Lick index system. Each star was
cross-correlated with a template spectrum to improve the wavelength
scale, removing most of the wavelength jitter from the original
library, and some mistakes in names of objects were corrected.
This collection of FITS files is a reworked version of the stellar
spectral library that forms the basis of the Lick index system. Each
star was cross-correlated with a template spectrum to improve the
wavelength scale, removing most of the wavelength jitter from the
original library, and some mistakes in names of objects were
corrected.
New FITS header Keywords give updated wavelength scale:
WCRVAL is the wavelength of the first pixel in angstroms
WCDELT is the dispersion in angstroms per pixel
Occasionally wavelength limit information is include with keywords
WLIMIT1 the wavelength in angstroms of the first reliable blue-end
pixel
WLIMIT2 the wavelength in angstroms of the first reliable red-end
pixel
Note that the old, unimproved wavelength scale is still present, using
the standard keywords CRVAL and CDELT, and users are cautioned that
those keywords are included only for historical reference and should
not be used as the wavelength scale for scientific applications.
The binary data parts of the files are 2048 pixels x 1 pixel in size.
The file names are in time order and are of the form sdrXXNNMM, where
XX = the number of the observing run
NN = the "tape number"
MM = the "scan number"
Some observing runs have no data and are missing. The tape and scan
numbers refer to the original PDP-11 data storage system and are no
longer relevant except that the final series of integers remains in
time-sequence order when alphabetized.
There are 1043 FITS files, each containing one spectrum.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table2.dat 1174 455 *Averaged index measurements for 455 stars
list.dat 37 1043 List of spectra
sp/* . 1043 Individual FITS spectra
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Note on table2.dat: The stars are listed in the same order as the catalogues
from Worthey et al. (1994, J/ApJS/94/687) and Worthey & Ottaviani
(1997, J/ApJS/111/377) and supersedes those catalogues.
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See also:
J/ApJS/94/687 : Old stellar populations. V. (Worthey+, 1994)
J/ApJS/111/377 : Hγ + Hδ absorption features (Worthey+ 1997)
J/MNRAS/396/1895 : MgI and sTiO index definitions (Cenarro+, 2009)
Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
3- 9 F7.3 mag CN1 ?=-99 CN1 index (magnitude units) (1)
12- 18 F7.3 mag CN2 ?=-99 CN2 index (magnitude units)
21- 27 F7.3 0.1nm Ca4227 ?=-99 Ca4227 index (Angstroms of EW)
30- 36 F7.3 0.1nm G4300 ?=-99 G4300 index (Angstroms of EW)
39- 45 F7.3 0.1nm Fe4383 ?=-99 Fe4383 index (Angstroms of EW)
48- 54 F7.3 0.1nm Ca4455 ?=-99 Ca4455 index (Angstroms of EW)
57- 63 F7.3 0.1nm Fe4531 ?=-99 Fe4531 index (Angstroms of EW)
66- 72 F7.3 0.1nm C24668 ?=-99 C2_4668 index (Angstroms of EW)
75- 81 F7.3 0.1nm Hbeta Hβ index (Angstroms of EW)
84- 90 F7.3 0.1nm Fe5015 Fe5015 index (Angstroms of EW)
93- 99 F7.3 mag Mg1 Mg1 index (magnitude units)
102- 108 F7.3 mag Mg2 Mg2 index (magnitude units)
111- 117 F7.3 0.1nm Mgb Mgb index (Angstroms of EW)
120- 126 F7.3 0.1nm Fe5270 Fe5270 index (Angstroms of EW)
129- 135 F7.3 0.1nm Fe5335 Fe5335 index (Angstroms of EW)
138- 144 F7.3 0.1nm Fe5406 Fe5406 index (Angstroms of EW)
147- 153 F7.3 0.1nm Fe5709 ?=-99 Fe5709 index (Angstroms of EW)
156- 162 F7.3 0.1nm Fe5782 ?=-99 Fe5782 index (Angstroms of EW)
165- 171 F7.3 0.1nm NaD ?=-99 NaD index (Angstroms of EW)
174- 180 F7.3 mag TiO1 ?=-99 TiO1 index (magnitude units)
183- 189 F7.3 mag TiO2 ?=-99 TiO2 index (magnitude units)
192- 198 F7.3 0.1nm HdeltaA ?=-99 HδA index (Angstroms of EW)
201- 207 F7.3 0.1nm HgammaA ?=-99 HγA index (Angstroms of EW)
210- 216 F7.3 0.1nm HdeltaF ?=-99 HδF index (Angstroms of EW)
219- 225 F7.3 0.1nm HgammaF ?=-99 HγF index (Angstroms of EW)
228- 234 F7.3 0.1nm CO4685 ?=-99 CO4685 index (Angstroms of EW)
237- 243 F7.3 0.1nm CO5161 CO5161 index (Angstroms of EW)
246- 252 F7.3 0.1nm CNO4175 ?=-99 CNO4175 index (Angstroms of EW)
255- 261 F7.3 0.1nm Mg4780 ?=-99 Mg4780 index (Angstroms of EW)
264- 270 F7.3 0.1nm Si4101 ?=-99 Si4101 index (Angstroms of EW)
273- 279 F7.3 0.1nm Si4513 ?=-99 Si4513 index (Angstroms of EW)
282- 288 F7.3 0.1nm S4693 S4693 index (Angstroms of EW)
291- 297 F7.3 0.1nm K4042 ?=-99 K4042 index (Angstroms of EW)
300- 306 F7.3 0.1nm Sc4312 ?=-99 Sc4312 index (Angstroms of EW)
309- 315 F7.3 0.1nm Sc6292 ?=-99 Sc6292 index (Angstroms of EW)
318- 324 F7.3 0.1nm Ti4296 ?=-99 Ti4296 index (Angstroms of EW)
327- 333 F7.3 0.1nm Ti4533 ?=-99 Ti4533 index (Angstroms of EW)
336- 342 F7.3 0.1nm Ti5000 Ti5000 index (Angstroms of EW)
345- 351 F7.3 0.1nm V4112 ?=-99 V4112 index (Angstroms of EW)
354- 360 F7.3 0.1nm V4928 V4928 index (Angstroms of EW)
363- 369 F7.3 0.1nm Cr4264 ?=-99 Cr4264 index (Angstroms of EW)
372- 378 F7.3 0.1nm Cr5206 Cr5206 index (Angstroms of EW)
381- 387 F7.3 0.1nm Mn4018 ?=-99 Mn4018 index (Angstroms of EW)
390- 396 F7.3 0.1nm Mn4061 ?=-99 Mn4061 index (Angstroms of EW)
399- 405 F7.3 0.1nm Mn4757 ?=-99 Mn4757 index (Angstroms of EW)
408- 414 F7.3 0.1nm Fe4058 ?=-99 Fe4058 index (Angstroms of EW)
417- 423 F7.3 0.1nm Fe4930 Fe4930 index (Angstroms of EW)
426- 432 F7.3 0.1nm Ni4292 ?=-99 Ni4292 index (Angstroms of EW)
435- 441 F7.3 0.1nm Ni4910 Ni4910 index (Angstroms of EW)
444- 450 F7.3 0.1nm Ni4976 Ni4976 index (Angstroms of EW)
453- 459 F7.3 0.1nm Ni5592 ?=-99 Ni5592 index (Angstroms of EW)
462- 468 F7.3 0.1nm Cu5217 Cu5217 index (Angstroms of EW)
471- 477 F7.3 0.1nm Cu5780 ?=-99 Cu5780 index (Angstroms of EW)
480- 486 F7.3 0.1nm Zn4720 ?=-99 Zn4720 index (Angstroms of EW)
489- 495 F7.3 0.1nm Ba4552 ?=-99 Ba4552 index (Angstroms of EW)
498- 504 F7.3 0.1nm Ba4933 Ba4933 index (Angstroms of EW)
507- 513 F7.3 0.1nm Ba6142 ?=-99 Ba6142 index (Angstroms of EW)
516- 522 F7.3 0.1nm Sr4076 ?=-99 Sr4076 index (Angstroms of EW)
525- 531 F7.3 0.1nm Eu4592 ?=-99 Eu4592 index (Angstroms of EW)
534- 540 F7.3 0.1nm HBemiss HBemiss index (Angstroms of EW)
543- 549 F7.3 0.1nm O3emiss1 O3emiss1 index (Angstroms of EW)
552- 558 F7.3 0.1nm O3emiss2 O3emiss2 index (Angstroms of EW)
561- 567 F7.3 0.1nm HBnaught HBnaught index (Angstroms of EW)
570- 576 F7.3 mag e_CN1 ?=-99 Error in index CN1
579- 585 F7.3 mag e_CN2 ?=-99 Error in index CN2
588- 594 F7.3 0.1nm e_Ca4227 ?=-99 Error in index Ca4227
597- 603 F7.3 0.1nm e_G4300 ?=-99 Error in index G4300
606- 612 F7.3 0.1nm e_Fe4383 ?=-99 Error in index Fe4383
615- 621 F7.3 0.1nm e_Ca4455 ?=-99 Error in index Ca4455
624- 630 F7.3 0.1nm e_Fe4531 ?=-99 Error in index Fe4531
633- 639 F7.3 0.1nm e_C24668 ?=-99 Error in index C24668
642- 648 F7.3 0.1nm e_Hbeta ?=-99 Error in index Hbeta
651- 657 F7.3 0.1nm e_Fe5015 ?=-99 Error in index Fe5015
660- 666 F7.3 mag e_Mg1 ?=-99 Error in index Mg1
669- 675 F7.3 mag e_Mg2 ?=-99 Error in index Mg2
678- 684 F7.3 0.1nm e_Mgb ?=-99 Error in index Mgb
687- 693 F7.3 0.1nm e_Fe5270 ?=-99 Error in index Fe5270
696- 702 F7.3 0.1nm e_Fe5335 ?=-99 Error in index Fe5335
705- 711 F7.3 0.1nm e_Fe5406 ?=-99 Error in index Fe5406
714- 720 F7.3 0.1nm e_Fe5709 ?=-99 Error in index Fe5709
723- 729 F7.3 0.1nm e_Fe5782 ?=-99 Error in index Fe5782
732- 738 F7.3 0.1nm e_NaD ?=-99 Error in index NaD
741- 747 F7.3 mag e_TiO1 ?=-99 Error in index TiO1
750- 756 F7.3 mag e_TiO2 ?=-99 Error in index TiO2
759- 765 F7.3 0.1nm e_HdeltaA ?=-99 Error in index HdeltaA
768- 774 F7.3 0.1nm e_HgammaA ?=-99 Error in index HgammaA
777- 783 F7.3 0.1nm e_HdeltaF ?=-99 Error in index HdeltaF
786- 792 F7.3 0.1nm e_HgammaF ?=-99 Error in index HgammaF
795- 801 F7.3 0.1nm e_CO4685 ?=-99 Error in index CO4685
804- 810 F7.3 0.1nm e_CO5161 ?=-99 Error in index CO5161
813- 819 F7.3 0.1nm e_CNO4175 ?=-99 Error in index CNO4175
822- 828 F7.3 0.1nm e_Mg4780 ?=-99 Error in index Mg4780
831- 837 F7.3 0.1nm e_Si4101 ?=-99 Error in index Si4101
840- 846 F7.3 0.1nm e_Si4513 ?=-99 Error in index Si4513
849- 855 F7.3 0.1nm e_S4693 ?=-99 Error in index S4693
858- 864 F7.3 0.1nm e_K4042 ?=-99 Error in index K4042
867- 873 F7.3 0.1nm e_Sc4312 ?=-99 Error in index Sc4312
876- 882 F7.3 0.1nm e_Sc6292 ?=-99 Error in index Sc6292
885- 891 F7.3 0.1nm e_Ti4296 ?=-99 Error in index Ti4296
894- 900 F7.3 0.1nm e_Ti4533 ?=-99 Error in index Ti4533
903- 909 F7.3 0.1nm e_Ti5000 ?=-99 Error in index Ti5000
912- 918 F7.3 0.1nm e_V4112 ?=-99 Error in index V4112
921- 927 F7.3 0.1nm e_V4928 ?=-99 Error in index V4928
930- 936 F7.3 0.1nm e_Cr4264 ?=-99 Error in index Cr4264
939- 945 F7.3 0.1nm e_Cr5206 ?=-99 Error in index Cr5206
948- 954 F7.3 0.1nm e_Mn4018 ?=-99 Error in index Mn4018
957- 963 F7.3 0.1nm e_Mn4061 ?=-99 Error in index Mn4061
966- 972 F7.3 0.1nm e_Mn4757 ?=-99 Error in index Mn4757
975- 981 F7.3 0.1nm e_Fe4058 ?=-99 Error in index Fe4058
984- 990 F7.3 0.1nm e_Fe4930 ?=-99 Error in index Fe4930
993- 999 F7.3 0.1nm e_Ni4292 ?=-99 Error in index Ni4292
1002-1008 F7.3 0.1nm e_Ni4910 ?=-99 Error in index Ni4910
1011-1017 F7.3 0.1nm e_Ni4976 ?=-99 Error in index Ni4976
1020-1026 F7.3 0.1nm e_Ni5592 ?=-99 Error in index Ni5592
1029-1035 F7.3 0.1nm e_Cu5217 ?=-99 Error in index Cu5217
1038-1044 F7.3 0.1nm e_Cu5780 ?=-99 Error in index Cu5780
1047-1053 F7.3 0.1nm e_Zn4720 ?=-99 Error in index Zn4720
1056-1062 F7.3 0.1nm e_Ba4552 ?=-99 Error in index Ba4552
1065-1071 F7.3 0.1nm e_Ba4933 ?=-99 Error in index Ba4933
1074-1080 F7.3 0.1nm e_Ba6142 ?=-99 Error in index Ba6142
1083-1089 F7.3 0.1nm e_Sr4076 ?=-99 Error in index Sr4076
1092-1098 F7.3 0.1nm e_Eu4592 ?=-99 Error in index Eu4592
1101-1107 F7.3 0.1nm e_HBemiss ?=-99 Error in index HBemiss
1110-1116 F7.3 0.1nm e_O3emiss1 ?=-99 Error in index O3emiss1
1119-1125 F7.3 0.1nm e_O3emiss2 ?=-99 Error in index O3emiss2
1128-1134 F7.3 0.1nm e_HBnaught ?=-99 Error in index HBnaught
1136-1149 A14 --- Name Star name
1151-1174 A24 --- OName Other name(s)
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Note (1): An entry of -99 for an index value indicates no datum available.
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Byte-by-byte Description of file: list.dat
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Bytes Format Units Label Explanations
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1- 14 A14 --- FileName Name of the fits spectrum in subdirectory sp
(wavelength coverage: 410/640nm)
17- 37 A21 --- Star Star name
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Acknowledgements:
Guy Worthey, gwortheyastro(at)gmail.com
(End) Guy Worthey [Washington State Univ.], Patricia Vannier [CDS] 09-Dec-2013