Journals / Turkish Journal of Astronomy and Astrophysics / 2022 / Cilt: 3 Sayı: 3 Özel Sayı

Determining the Luminosity Function of Main Sequence Stars Around the Sun with Gaia Data

Güneş Civarındaki Anakol Yıldızlarının Işıma Gücü Fonksiyonunun Gaia Verileriyle Belirlenmesi

Doğu Deniz Bulut(İstanbul Üniversitesi)0000-0002-7355-5993
Sabiha Tunçel Güçtekin(İSTANBUL ÜNİVERSİTESİ, FEN FAKÜLTESİ, ASTRONOMİ VE UZAY BİLİMLERİ BÖLÜMÜ, ASTRONOMİ VE UZAY BİLİMLERİ PR.)0000-0002-5751-098X
Pages
68–71
Publication Date
2022-12-31
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

The LFs are revealed from the stars having different distances and three different relative parallax errors,and are analysed in a broad absolute magnitude range.The findings of our study for the stars located at a 175 pc distance, having relative parallax error of $\sigma_{\varpi}/\varpi\leq 0.10$, and absolute magnitude $2 < M_{\rm G}\leq 13$ are compatible with the study in literature which was done with the stars in Solar Neighborhood of 100 pc.

📌 3 Key Takeaways

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Objective & Hypothesis:In this study, we obtained luminosity function (LF) of 39 million main sequence (MS) stars in the Solar Neighborhood selected from Gaia Early Data Release 3 (Gaia EDR3).
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Key Findings & Data:In this study, we obtained luminosity function (LF) of 39 million main sequence (MS) stars in the Solar Neighborhood selected from Gaia Early Data Release 3 (Gaia EDR3).
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Conclusion & Impact:The LFs are revealed from the stars having different distances and three different relative parallax errors,and are analysed in a broad absolute magnitude range.The findings of our study for the stars located at a 175 pc distance, having relative parallax error of $\sigma_{\varpi}/\varpi\leq 0.10$, and absolute magnitude $2 < M_{\rm G}\leq 13$ are compatible with the study in literature which was done with the stars in Solar Neighborhood of 100 pc.
🔬Design:Araştırma Makalesi
📍Scope:Comprehensive Sample
⚙️Variables:Stars: luminosity function · Hertzsprung-Russell and Color-brightness diagram · Sun neighborhood

Abstract

In this study, we obtained luminosity function (LF) of 39 million main sequence (MS) stars in the Solar Neighborhood selected from Gaia Early Data Release 3 (Gaia EDR3). The LFs are revealed from the stars having different distances and three different relative parallax errors,and are analysed in a broad absolute magnitude range.The findings of our study for the stars located at a 175 pc distance, having relative parallax error of $\sigma_{\varpi}/\varpi\leq 0.10$, and absolute magnitude $2 < M_{\rm G}\leq 13$ are compatible with the study in literature which was done with the stars in Solar Neighborhood of 100 pc.

Özet

Bu çalışmada, Gaia uydusunun erken üçüncü veri sürümü Gaia EDR3 kataloğundan seçilen yaklaşık 39 milyon anakol yıldızından Güneş civarını temsil eden ışıma gücü fonksiyonları elde edilmiştir. Geniş bir mutlak parlaklık aralığında tanımlı ışıma gücü fonksiyonlarının elde edilmesinde farklı uzaklıklarda ve üç farklı rölatif paralaks hatasına sahip yıldızlar kullanılmıştır. Bu çalışmadaki bulgular literatürde uzaklığı 100 pc için verilen ışıma gücü fonksiyonunun, rölatif paralaks hataları σ π /π ≤ 0.10, mutlak parlaklıkları 2 < MG ≤ 13 kadir aralığında ve 175 pc’lik uzaklık içindeki anakol yıldızlarından elde edilen ışıma gücü fonksiyonuyla uyumlu olduğunu göstermiştir.

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Cite This Article

Bulut, D. D., Güçtekin, S. T. (2022). Determining the Luminosity Function of Main Sequence Stars Around the Sun with Gaia Data. Turkish Journal of Astronomy and Astrophysics, Cilt: 3 Sayı: 3 Özel Sayı, 68–71. https://doi.org/10.55064/tjaa.1038987

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References (2)

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