Oort Sabitlerinin Yıldız Rengine Göre Değişimi

Abstract

Oort sabitleri, Samanyolu Galaksimizin yerel dönme özelliğini karakterize eden sabitlerdir. Bu sabitler, yıldızların galaktik konumları ($l$) ve hareketlerine ($\mu_l$) doğrudan bağlıdır. Bu çalışmanın amacı, Hipparcos Kataloğunda yer alan yıldızları kullanarak, farklı $B-V$ renk aralığındaki yıldızlar için Oort sabitlerini belirlemektir. Oort sabitlerinin duyarlı değerleri \cite{feast:whitelock1} tarafından $A=14.82$ km/s/kpc ve $B=-12.37$ km/s/kpc olarak verilmektedir. Hipparcos kataloğundaki farklı $B-V$ renk aralığındaki yıldız gruplarına bakıldığında, renkleri $0.0

Keywords

• catalogues
• Milky Way
• Galaxy: structure

References

1. Feast, M., Whitelock, P.: Galactic kinematics of Cepheids from HIPPARCOS proper motions. Mon. Not. R. Astron. Soc. 291 (1997) 683--693
2. Groß, J.: Lecture Notes in Statistics: Linear Regression. Springer-Verlag Berlin Heidelberg (2003) 53--55
3. Hobbs, D.: Project 1 (P1); Oorts constants. ASTM 13 (http://www.astro.lu.se/Education/utb/ASTM13/astm13_P1.pdf) Dynamical Astronomy, Lund Obs. (2014), Dept. of Astro. & Theo. Phys.
4. Huyan, Z.-Bo, Zhu, Z., Liu, J.-Cheng: Kinematics of Solar neighborhood stars and its dependency on age and metallicity. eprint arXiv:1405.5635
5. Lindegren, L.: Dynamical Astronomy Lecture Notes for ASTM 13. Lund Observatory (2014), Department of Astronomy and Theoretical Physics
6. Tayler, R. J.: The Stars: Their Structure and Evolution. 2nd ed. Cambridge University Press (1994)

Details

Primary Language

English

Subjects

Astronomical Sciences (Other)

Journal Section

Conference Paper

Authors

Oğuz Öztürk This is me
Türkiye

Ahmet Erdem This is me
Türkiye

David Hobbs This is me
Sweden

Publication Date

December 11, 2020

Submission Date

September 18, 2015

Acceptance Date

-

Published in Issue

Year 2020 Volume: 1 Number: 1

IZ

https://izlik.org/JA28YZ89AM

Cite

RIS / Bibtex

References

1. Feast, M., Whitelock, P.: Galactic kinematics of Cepheids from HIPPARCOS proper motions. Mon. Not. R. Astron. Soc. 291 (1997) 683--693
2. Groß, J.: Lecture Notes in Statistics: Linear Regression. Springer-Verlag Berlin Heidelberg (2003) 53--55
3. Hobbs, D.: Project 1 (P1); Oorts constants. ASTM 13 (http://www.astro.lu.se/Education/utb/ASTM13/astm13_P1.pdf) Dynamical Astronomy, Lund Obs. (2014), Dept. of Astro. & Theo. Phys.
4. Huyan, Z.-Bo, Zhu, Z., Liu, J.-Cheng: Kinematics of Solar neighborhood stars and its dependency on age and metallicity. eprint arXiv:1405.5635
5. Lindegren, L.: Dynamical Astronomy Lecture Notes for ASTM 13. Lund Observatory (2014), Department of Astronomy and Theoretical Physics
6. Tayler, R. J.: The Stars: Their Structure and Evolution. 2nd ed. Cambridge University Press (1994)