Academic Journal
Absolute parameters and observed flares in the M-type detached eclipsing binary 2MASS J04100497+2931023
| العنوان: | Absolute parameters and observed flares in the M-type detached eclipsing binary 2MASS J04100497+2931023 |
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| المؤلفون: | Meng, Gang, Zhang, Li-Yun, Pi, Qing-Feng, Long, Liu, Han, Xianming L., Prabhakar, Misra |
| بيانات النشر: | NATL ASTRONOMICAL OBSERVATORIES, CHIN ACAD SCIENCES |
| سنة النشر: | 2021 |
| المجموعة: | Yunnan Observatories: YNAO OpenIR (Chinese Academy of Sciences, CAS) / 中国科学院云南天文台机构知识库 |
| مصطلحات موضوعية: | binaries, eclipsing, stars, flare, star, low-mass, J04100497+2931023, 天文学, 天文学::恒星与银河系, 理学, 理学::天文学, Astronomy & Astrophysics, CHROMOSPHERIC ACTIVITY, STAR LIGHT, MAGNETIC ACTIVITY, KEPLER, TELESCOPE, PERIOD, SYSTEM |
| الوصف: | The eclipsing binary 2MASS J04100497+2931023 (J04100497+2931023) is classified its spectral type of M0 +/- 2V on basis of a low-resolution spectral survey by the Large Sky Area Multi-Object Fiber Spectroscopic Telescope (LAMOST). The low-resolution spectra exhibit strong single-peak emission in the H alpha line. We obtained the radial velocities of this binary by means of the Cross-Correlation Function method from the LAMOST medium-resolution spectra. Both components of J04100497+2931023 indicate strong emissions in the H alpha line. We performed follow-up photometric observations of J04100497+2931023 using the Xinglong 85 cm telescope of National Astronomical Observatories, Chinese Academy of Sciences. We obtained its full light curve in VRI filters. We first determined their absolute parameters from simultaneously radial velocity and light curves by the Wilson-Devinney program. From our new light curves, we detected three flares for the first time, including one convective flare. The amplitudes, durations, energies, and spectral indices of three flares were also determined. J04100497+2931023 was monitored for approximately 29 h, which indicates that the flare rate is 0.1 flare per hour. We conclude that J04100497+2931023 is a low-mass detached eclipsing binary with strong magnetic activity. |
| نوع الوثيقة: | article in journal/newspaper report |
| اللغة: | English |
| Relation: | RESEARCH IN ASTRONOMY AND ASTROPHYSICS; http://ir.ynao.ac.cn/handle/114a53/24490; http://ir.ynao.ac.cn/handle/114a53/24491; https://iopscience.iop.org/article/10.1088/1674-4527/21/5/115 |
| DOI: | 10.1088/1674-4527/21/5/115 |
| الاتاحة: | http://ir.ynao.ac.cn/handle/114a53/24490 http://ir.ynao.ac.cn/handle/114a53/24491 https://iopscience.iop.org/article/10.1088/1674-4527/21/5/115 https://doi.org/10.1088/1674-4527/21/5/115 |
| رقم الانضمام: | edsbas.EA73A85F |
| قاعدة البيانات: | BASE |
| DOI: | 10.1088/1674-4527/21/5/115 |
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