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LIME: Semiautomated line measurement and identification from stellar spectra

Yıl 2017, Cilt 41, Sayı 4, 367 - 376, 01.08.2017

Öz

We present LIME (Line Measurements from ECHELLE Spectra), an IDL-based code, as a powerful tool for semiautomated stellar line measurement and identification. Interactively selected line positions (i.e. wavelengths) are compared with a master line list of the user's selections. Each unknown line that the user interactively chooses is displayed with potential identifications provided by the code in the vicinity of the selected line. The best identification is evaluated on the basis of several criteria (e.g., atomic/molecular line information, wavelength displacement, and theoretical equivalent width for solar atmospheric values). We examined the identifications by LIME in the spectra of post-red supergiant star HD 179821 over a range of signal-to-noise values and wavelength ranges. We found that the results obtained by LIME show virtually complete agreement with the manual identifications for which the conventional and also tedious approach is to use a revised multiplet table as an initial guide and perform a systematic search that makes use of the lower excitation potential and gf-values. Comparison to previous identifications for HD 179821 in the literature revealed not only lines that were unmeasurable and/or blended but also misidentifications. While a manual identification process takes a relatively longer time to be accomplished by an experienced spectroscopist, LIME can provide a rapid extraction of line information in a few hours with moderate user interaction.

Yıl 2017, Cilt 41, Sayı 4, 367 - 376, 01.08.2017

Öz

Ayrıntılar

Bölüm Makaleler
Yazarlar

Timur ŞAHİN>

0000-0002-0296-233X

Yayımlanma Tarihi 1 Ağustos 2017
Yayınlandığı Sayı Yıl 2017, Cilt 41, Sayı 4

Kaynak Göster

Bibtex @ { tbtkphysics401944, journal = {Turkish Journal of Physics}, issn = {1300-0101}, eissn = {1303-6122}, address = {}, publisher = {TÜBİTAK}, year = {2017}, volume = {41}, number = {4}, pages = {367 - 376}, title = {LIME: Semiautomated line measurement and identification from stellar spectra}, key = {cite}, author = {Şahin, Timur} }
APA Şahin, T. (2017). LIME: Semiautomated line measurement and identification from stellar spectra . Turkish Journal of Physics , 41 (4) , 367-376 . Retrieved from https://dergipark.org.tr/tr/pub/tbtkphysics/issue/35852/401944
MLA Şahin, T. "LIME: Semiautomated line measurement and identification from stellar spectra" . Turkish Journal of Physics 41 (2017 ): 367-376 <https://dergipark.org.tr/tr/pub/tbtkphysics/issue/35852/401944>
Chicago Şahin, T. "LIME: Semiautomated line measurement and identification from stellar spectra". Turkish Journal of Physics 41 (2017 ): 367-376
RIS TY - JOUR T1 - LIME: Semiautomated line measurement and identification from stellar spectra AU - TimurŞahin Y1 - 2017 PY - 2017 N1 - DO - T2 - Turkish Journal of Physics JF - Journal JO - JOR SP - 367 EP - 376 VL - 41 IS - 4 SN - 1300-0101-1303-6122 M3 - UR - Y2 - 2022 ER -
EndNote %0 Turkish Journal of Physics LIME: Semiautomated line measurement and identification from stellar spectra %A Timur Şahin %T LIME: Semiautomated line measurement and identification from stellar spectra %D 2017 %J Turkish Journal of Physics %P 1300-0101-1303-6122 %V 41 %N 4 %R %U
ISNAD Şahin, Timur . "LIME: Semiautomated line measurement and identification from stellar spectra". Turkish Journal of Physics 41 / 4 (Ağustos 2017): 367-376 .
AMA Şahin T. LIME: Semiautomated line measurement and identification from stellar spectra. Turkish Journal of Physics. 2017; 41(4): 367-376.
Vancouver Şahin T. LIME: Semiautomated line measurement and identification from stellar spectra. Turkish Journal of Physics. 2017; 41(4): 367-376.
IEEE T. Şahin , "LIME: Semiautomated line measurement and identification from stellar spectra", Turkish Journal of Physics, c. 41, sayı. 4, ss. 367-376, Ağu. 2017