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Related papers: Luminosity-Colour Relations for Red Clump Stars

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We present an M_V absolute magnitude calibration including the B-V colour and [Fe/H] metallicity for the red clump stars in the globular and open clusters with a wide range of metallicities: M_V =…

Astrophysics of Galaxies · Physics 2015-06-15 S. Bilir , T. Ak , S. Ak , T. Yontan , Z. F. Bostanci

We combined the ($K_s$, $J-K_s$) data in Laney et al. (2012) with the $V$ apparent magnitudes and trigonometric parallaxes taken from the Hipparcos catalogue and used them to fit the $M_{K_s}$ absolute magnitude to a linear polynomial in…

Astrophysics of Galaxies · Physics 2015-06-15 S. Karaali , S. Bilir , E. Yaz Gokce

Red clump (RC) stars are reliable standard candles for studying the structure and evolution of the Milky Way. In this study, we present empirical calibrations of RC absolute magnitudes in the Mephisto (v, g, r, i) and CSST (g, r, i)…

Solar and Stellar Astrophysics · Physics 2025-06-26 Zheng Yu , Bing-Qiu Chen , Xiao-Wei Liu

Understanding the age and metallicity dependence of the absolute magnitude and colour of red clump (RC) stars is crucial for validating the accuracy of stellar evolution models and enhancing their reliability as a standard candle. However,…

Solar and Stellar Astrophysics · Physics 2025-10-13 Hiroki Onozato , Yoshifusa Ita , Yoshikazu Nakada

Red clump (RC) stars are widely used as an excellent standard candle. To make them even better, it is important to know the dependence of their absolute magnitudes on age and metallicity. We observed star clusters in the Large Magellanic…

Solar and Stellar Astrophysics · Physics 2019-05-08 Hiroki Onozato , Yoshifusa Ita , Yoshikazu Nakada , Shogo Nishiyama

We present two absolute magnitude calibrations, $M_{J}$ and $M_{K_s}$, for red giants with the colour magnitude diagrams of five Galactic clusters with different metallicities i.e. M92, M13, M71, M67, and NGC 6791. The combination of the…

Astrophysics of Galaxies · Physics 2015-06-11 S. Karaali , S. Bilir , E. Yaz Gokce

We present an absolute magnitude calibration for red giants with the colour magnitude diagrams of six Galactic clusters with different metallicities i.e. M92, M13, M3, M71, NGC 6791 and NGC 2158. The combination of the absolute magnitudes…

Astrophysics of Galaxies · Physics 2015-06-05 S. Karaali , S. Bilir , E. Yaz Gokce

Red clump stars are fundamental distance indicators in astrophysics, although theoretical stellar models predict a dependence of absolute magnitudes with ages. This effect is particularly strong below 2 Gyr, but even above this limit a mild…

Solar and Stellar Astrophysics · Physics 2017-05-24 Y. Q. Chen , L. Casagrande , G. Zhao , J. Bovy , V. Silva Aguirre , J. K. Zhao , Y. P. Jia

We present an absolute magnitude calibration for red giants with the colour magnitude diagrams of six Galactic clusters with different metallicities i.e. M92, M13, M5, 47 Tuc, M67, and NGC 6791. The combination of the absolute magnitude…

Astrophysics of Galaxies · Physics 2015-06-04 S. Karaali , S. Bilir , E. Yaz Gokce

This study presents the multi-wavelength investigation of the absolute magnitudes and colours of the red clump (RC) stars selected from APOGEE and GALAH DR2 combined catalogue which is complemented with {\it Gaia} DR2 astrometric data and…

Astrophysics of Galaxies · Physics 2020-05-20 Olcay Plevne , Özgecan Önal Taş , Selçuk Bilir , George M. Seabroke

Red clump stars (RCs) are useful tracers of distances, extinction, chemical abundances, and Galactic structures and kinematics. Accurate estimation of the RC parameters -- absolute magnitude and intrinsic color -- is the basis for obtaining…

Astrophysics of Galaxies · Physics 2022-01-05 Shu Wang , Xiaodian Chen

Over the past decade the use of the red clump (RC) as distance indicator has increased in importance as this evolutionary phase is well populated and a good local calibration exists. The absolute calibration of the RC in the $I$ and $K$…

Astrophysics · Physics 2009-11-13 M. A. T. Groenewegen

Although core helium-burning red clump (RC) stars are faint at ultraviolet wavelengths, their ultraviolet-optical color is a unique and accessible probe of their physical properties. Using data from the GALEX All Sky Imaging Survey, Gaia…

Solar and Stellar Astrophysics · Physics 2019-02-20 Steven Mohammed , David Schiminovich , Keith Hawkins , Benjamin Johnson , Dun Wang , David W. Hogg

We measure the two-point angular correlation function of a sample of 4,289,223 galaxies with r < 19.4 mag from the Sloan Digital Sky Survey as a function of photometric redshift, absolute magnitude and colour down to M_r - 5log h = -14 mag.…

The zero point of the reddening toward the Large Magellanic Cloud (LMC) has been the subject of some dispute. Its uncertainty propagates as a systematic error for methods which measure the extragalactic distance scale through knowledge of…

Solar and Stellar Astrophysics · Physics 2021-04-14 David M. Nataf , Santi Cassisi , Luca Casagrande , Wenlong Yuan , Adam G. Riess

We present the first determination of absolute magnitudes for the red clump (RC) stars with the Wide-field Infrared Survey Explorer (WISE). We used recently reduced parallaxes taken from the Hipparcos catalogue and identified 3889 RC stars…

Astrophysics of Galaxies · Physics 2015-06-15 E. Yaz Gokce , S. Bilir , N. D. Ozturkmen , S. Duran , T. Ak , S. Ak , S. Karaali

(Abridged) The colour-magnitude relations of one of the most massive, high redshift clusters of galaxies known have been studied. Photometry has been measured in the V, R, I, z, F606W, F814W, J and K bands to a depth of K*+2.5 and…

Astrophysics · Physics 2009-11-11 S. C. Ellis , L. R. Jones , D. Donovan , H. Ebeling , H. G. Khosroshahi

We present a sample of about 120,000 red clump candidates selected from the LAMOST DR2 catalog based on the empirical distribution model in the effective temperature vs. surface gravity plane. Although, in general, red clump stars are…

Astrophysics of Galaxies · Physics 2015-12-24 Junchen Wan , Chao Liu , Licai Deng , Wenyuan Cui , Yong Zhang , Yonghui Hou , Ming Yang , Yue Wu

The color - stellar mass-to-light ratio relation (CMLR) is a widely accepted tool to estimate the stellar mass (M*) of a galaxy. However, an individual CMLR tends to give distinct M* for a same galaxy when it is applied in different bands.…

Astrophysics of Galaxies · Physics 2020-07-22 Wei Du , Stacy S. McGaugh

The tip of red giant branch (TRGB) stars have attracted intensive attention in recent years because their $I$-band absolute magnitudes, $M_\rm I$, are often used for distance calibration in the Hubble constant measurements because of its…

Solar and Stellar Astrophysics · Physics 2025-02-10 Zhenzhen Shao , Shu Wang , Biwei Jiang , Xiaofeng Wang , Zhishuai Ge , Haichang Zhu
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