Yıl 2020, Cilt 21 , Sayı 4, Sayfalar 525 - 538 2020-12-28

ASTROPHYSICAL AND STRUCTURAL PARAMETERS, AND DYNAMICAL EVOLUTION OF THE OPEN CLUSTERS NGC 1245 AND NGC 2099
ASTROPHYSICAL AND STRUCTURAL PARAMETERS, AND DYNAMICAL EVOLUTION OF THE OPEN CLUSTERS NGC 1245 AND NGC 2099

Hikmet ÇAKMAK [1] , Orhan GÜNEŞ [2] , Yüksel KARATAŞ [3]


We derive astrophysical and structural parameters of open clusters NGC 1245 and NGC 2099 from 2MASS JHKs and Gaia DR2 photometric / astrometric data bases. Their likely members have been determined from Gaia DR2 proper motion data. Our E(B – V) values (2MASS) are slightly smaller than the literature values, whereas our E(B – V) values (Gaia DR2) agree with the literature within the uncertainties. Their distance moduli/distances and ages are in good coincident with the literature. NGC 1245 has steep negative core mass function slope (MFs) (χ_core=-1.24). It’s at halo (χ_halo=+0.78) and at overall (χ_overall=-0.95) MFs mean that it presents signs of small-scale mass segregation to the outer regions from its core, due to its [t_rlx (overall),τ_overall ]=[302 Myr,5]. The MFs of NGC 2099 is very negative steep (χ_core=-2.67) in the core, and quite positive steep (χ_halo=+1.41) in the halo. This kind of MF slope steeping from the core to the outskirts indicates that low-mass stars in the core are transferred to the cluster's outskirts, while massive stars sink in the core, because of mass segregation. NGC 2099's flat overall MFs (χ_overall=+0.91) and its τ_overall=8 presents a sign of mass segregation. These OCs with the relatively large masses 8700 Msolar (NGC 1245) and 5660 Msolar (NGC 2099), which locate at RGC > 9 kpc, expose to external perturbations such as tidal effects and shock waves, and they lose their stars in low-proportions.
Galaxy: open clusters and associations, open cluster: NGC 1245, Individual Galaxy: Stellar Content,
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Yazarlar

Orcid: 0000-0002-1959-6049
Yazar: Hikmet ÇAKMAK (Sorumlu Yazar)
Kurum: İSTANBUL ÜNİVERSİTESİ, FEN FAKÜLTESİ, ASTRONOMİ VE UZAY BİLİMLERİ BÖLÜMÜ
Ülke: Turkey


Orcid: 0000-0003-1263-808X
Yazar: Orhan GÜNEŞ
Kurum: İSTANBUL MEDENİYET ÜNİVERSİTESİ, EDEBİYAT FAKÜLTESİ, BİLİM TARİHİ BÖLÜMÜ
Ülke: Turkey


Orcid: 0000-0002-7737-6589
Yazar: Yüksel KARATAŞ
Kurum: İSTANBUL ÜNİVERSİTESİ, FEN FAKÜLTESİ, ASTRONOMİ VE UZAY BİLİMLERİ BÖLÜMÜ
Ülke: Turkey


Tarihler

Yayımlanma Tarihi : 28 Aralık 2020

Bibtex @araştırma makalesi { estubtda673575, journal = {Eskişehir Technical University Journal of Science and Technology A - Applied Sciences and Engineering}, issn = {2667-4211}, address = {btda@anadolu.edu.tr}, publisher = {Eskişehir Teknik Üniversitesi}, year = {2020}, volume = {21}, pages = {525 - 538}, doi = {10.18038/estubtda.673575}, title = {ASTROPHYSICAL AND STRUCTURAL PARAMETERS, AND DYNAMICAL EVOLUTION OF THE OPEN CLUSTERS NGC 1245 AND NGC 2099}, key = {cite}, author = {Çakmak, Hikmet and Güneş, Orhan and Karataş, Yüksel} }
APA Çakmak, H , Güneş, O , Karataş, Y . (2020). ASTROPHYSICAL AND STRUCTURAL PARAMETERS, AND DYNAMICAL EVOLUTION OF THE OPEN CLUSTERS NGC 1245 AND NGC 2099 . Eskişehir Technical University Journal of Science and Technology A - Applied Sciences and Engineering , 21 (4) , 525-538 . DOI: 10.18038/estubtda.673575
MLA Çakmak, H , Güneş, O , Karataş, Y . "ASTROPHYSICAL AND STRUCTURAL PARAMETERS, AND DYNAMICAL EVOLUTION OF THE OPEN CLUSTERS NGC 1245 AND NGC 2099" . Eskişehir Technical University Journal of Science and Technology A - Applied Sciences and Engineering 21 (2020 ): 525-538 <https://dergipark.org.tr/tr/pub/estubtda/issue/58029/673575>
Chicago Çakmak, H , Güneş, O , Karataş, Y . "ASTROPHYSICAL AND STRUCTURAL PARAMETERS, AND DYNAMICAL EVOLUTION OF THE OPEN CLUSTERS NGC 1245 AND NGC 2099". Eskişehir Technical University Journal of Science and Technology A - Applied Sciences and Engineering 21 (2020 ): 525-538
RIS TY - JOUR T1 - ASTROPHYSICAL AND STRUCTURAL PARAMETERS, AND DYNAMICAL EVOLUTION OF THE OPEN CLUSTERS NGC 1245 AND NGC 2099 AU - Hikmet Çakmak , Orhan Güneş , Yüksel Karataş Y1 - 2020 PY - 2020 N1 - doi: 10.18038/estubtda.673575 DO - 10.18038/estubtda.673575 T2 - Eskişehir Technical University Journal of Science and Technology A - Applied Sciences and Engineering JF - Journal JO - JOR SP - 525 EP - 538 VL - 21 IS - 4 SN - 2667-4211- M3 - doi: 10.18038/estubtda.673575 UR - https://doi.org/10.18038/estubtda.673575 Y2 - 2020 ER -
EndNote %0 Eskişehir Technical University Journal of Science and Technology A - Applied Sciences and Engineering ASTROPHYSICAL AND STRUCTURAL PARAMETERS, AND DYNAMICAL EVOLUTION OF THE OPEN CLUSTERS NGC 1245 AND NGC 2099 %A Hikmet Çakmak , Orhan Güneş , Yüksel Karataş %T ASTROPHYSICAL AND STRUCTURAL PARAMETERS, AND DYNAMICAL EVOLUTION OF THE OPEN CLUSTERS NGC 1245 AND NGC 2099 %D 2020 %J Eskişehir Technical University Journal of Science and Technology A - Applied Sciences and Engineering %P 2667-4211- %V 21 %N 4 %R doi: 10.18038/estubtda.673575 %U 10.18038/estubtda.673575
ISNAD Çakmak, Hikmet , Güneş, Orhan , Karataş, Yüksel . "ASTROPHYSICAL AND STRUCTURAL PARAMETERS, AND DYNAMICAL EVOLUTION OF THE OPEN CLUSTERS NGC 1245 AND NGC 2099". Eskişehir Technical University Journal of Science and Technology A - Applied Sciences and Engineering 21 / 4 (Aralık 2020): 525-538 . https://doi.org/10.18038/estubtda.673575
AMA Çakmak H , Güneş O , Karataş Y . ASTROPHYSICAL AND STRUCTURAL PARAMETERS, AND DYNAMICAL EVOLUTION OF THE OPEN CLUSTERS NGC 1245 AND NGC 2099. Eskişehir Technical University Journal of Science and Technology A - Applied Sciences and Engineering. 2020; 21(4): 525-538.
Vancouver Çakmak H , Güneş O , Karataş Y . ASTROPHYSICAL AND STRUCTURAL PARAMETERS, AND DYNAMICAL EVOLUTION OF THE OPEN CLUSTERS NGC 1245 AND NGC 2099. Eskişehir Technical University Journal of Science and Technology A - Applied Sciences and Engineering. 2020; 21(4): 525-538.
IEEE H. Çakmak , O. Güneş ve Y. Karataş , "ASTROPHYSICAL AND STRUCTURAL PARAMETERS, AND DYNAMICAL EVOLUTION OF THE OPEN CLUSTERS NGC 1245 AND NGC 2099", Eskişehir Technical University Journal of Science and Technology A - Applied Sciences and Engineering, c. 21, sayı. 4, ss. 525-538, Ara. 2021, doi:10.18038/estubtda.673575