Yıl 2018, Cilt 22, Sayı 3, Sayfalar 938 - 944 2018-06-01

Low-metallicity pulsating stars in the LAMOST DR1 and WASP
LAMOST DR1 ve WASP'ta ki düşük metal bolluklu zonklayan yıldızlar

Filiz Kahraman Aliçavuş [1]

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In this study, the results of a research about low-metallicity pulsating stars are presented. The stars having metallicity from -2.4 to -0.5 dex were selected from the LAMOST DR1 catalogue considering the ranges of 6500-8600 K, 3.8-4.5 cgs of effective temperature and surface gravity, respectively. Photometric data of the selected stars were taken from the WASP. The stars showing light variation were determined and  variability frequencies of the stars were derived. As a result, five confirmed, two candidate RR Lyrae stars and three suspect SX Phoenix variables were found. Additionally, spectral types, effective temperatures, and projected rotational velocities of the stars were derived.

 Bu çalışmada “LAMOST Data Release 1 (DR1)” tayfsal veri tabanında yer alan düşük metal bolluklu zonklayan yıldızların incelemesi sunulmuştur. Çalışmada kullanılan sistemler LAMOST DR1 katalogunda yer alan ve metal bolluğu -2.4 ile -0.5 dex, etkin sıcaklığı 6500 ile 8600 K ve yüzey çekim ivmesi log g = 3.8 – 4.5 aralığında bulunan yıldızlardan seçilmiştir. Seçilen yıldızların fotometrik verileri ise WASP katalogundan alınmıştır. Fotometrik veriler kullanılarak ışık değişimi gösteren yıldızlar belirlenmiş ve değişim frekansları elde edilmiştir. Sonuç olarak analiz edilen sistemlerden beşi kesin, ikisi aday RR Lyrae ve üçü de aday SX Phoenix  yıldızı olarak tanımlanmıştır. Ayrıca, yıldızların tayf türleri, etkin sıcaklık değerleri ve dönme hızlarıda tayfsal verilerin analizi ile elde edilmiştir.

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Birincil Dil tr
Konular Fizik ve Fizik Mühendisliği, Temel Bilimler (Genel)
Yayımlanma Tarihi Haziran 2018
Dergi Bölümü Araştırma Makalesi
Yazarlar

Yazar: Filiz Kahraman Aliçavuş
E-posta: filizkahraman01@gmail.com
Kurum: Çanakkale Onsekiz Mart Üniversitesi
Ülke: Turkey


Bibtex @araştırma makalesi { saufenbilder341828, journal = {Sakarya University Journal of Science}, issn = {1301-4048}, address = {Sakarya Üniversitesi}, year = {2018}, volume = {22}, pages = {938 - 944}, doi = {10.16984/saufenbilder.341828}, title = {LAMOST DR1 ve WASP'ta ki düşük metal bolluklu zonklayan yıldızlar}, key = {cite}, author = {Kahraman Aliçavuş, Filiz} }
APA Kahraman Aliçavuş, F . (2018). LAMOST DR1 ve WASP'ta ki düşük metal bolluklu zonklayan yıldızlar. Sakarya University Journal of Science, 22 (3), 938-944. DOI: 10.16984/saufenbilder.341828
MLA Kahraman Aliçavuş, F . "LAMOST DR1 ve WASP'ta ki düşük metal bolluklu zonklayan yıldızlar". Sakarya University Journal of Science 22 (2018): 938-944 <http://www.saujs.sakarya.edu.tr/issue/30828/341828>
Chicago Kahraman Aliçavuş, F . "LAMOST DR1 ve WASP'ta ki düşük metal bolluklu zonklayan yıldızlar". Sakarya University Journal of Science 22 (2018): 938-944
RIS TY - JOUR T1 - LAMOST DR1 ve WASP'ta ki düşük metal bolluklu zonklayan yıldızlar AU - Filiz Kahraman Aliçavuş Y1 - 2018 PY - 2018 N1 - doi: 10.16984/saufenbilder.341828 DO - 10.16984/saufenbilder.341828 T2 - Sakarya University Journal of Science JF - Journal JO - JOR SP - 938 EP - 944 VL - 22 IS - 3 SN - 1301-4048-2147-835X M3 - doi: 10.16984/saufenbilder.341828 UR - http://dx.doi.org/10.16984/saufenbilder.341828 Y2 - 2018 ER -
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