The catalogue of radial velocity variable hot subluminous stars from the MUCHFUSS project
The catalogue of radial velocity variable hot subluminous stars from the MUCHFUSS project
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MUCHFUSS 项目的径向速度可变热亚光度恒星目录
DOI：
10.1051/0004-6361/201525666
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发表时间：
2015
影响因子：
6.5
通讯作者：
Heuser
中科院分区：
文献类型：
--
作者：
Kupfer;Schaffenroth;V. Barlow;Østensen;O’Toole;Ziegerer;Heuser
The project Massive Unseen Companions to Hot Faint Underluminous Stars from SDSS (MUCHFUSS) aims to find sdBs with compact companions such as massive white dwarfs, neutron stars, or black holes. Here we provide classifications, atmospheric parameters, and a complete radial velocity (RV) catalogue containing 1914 single measurements for a sample of 177 hot subluminous stars discovered based on SDSS DR7; 110 stars show significant RV variability, while 67 qualify as candidates. We constrain the fraction of close massive compact companions of hydrogen-rich hot subdwarfs in our sample to be smaller than ~1.3%, which is already close to the theoretical predictions. However, the sample might still contain such binaries with longer periods exceeding ~8 d. We detect a mismatch between the ΔRVmax-distribution of the sdB and the more evolved sdOB and sdO stars, which challenges our understanding of their evolutionary connection. Furthermore, irregular RV variations of unknown origin with amplitudes of up to ~180 km s-1on timescales of years, days, and even hours have been detected in some He-sdO stars. They might be connected to irregular photometric variations in some cases.
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富氦亚矮星 CPD!20“1123：后共同包层双星演化至延伸水平分支
DOI：
--
发表时间：
2012
期刊：
影响因子：
--
作者：
N. Naslim;S. Geier;C. Jeffery;N. Behara;N. Behara;V. Woolf;L. Classen
通讯作者：
L. Classen
影响因子：
6.5
作者：
N. Reindl;S. Geier;T. Kupfer;S. Bloemen;V. Schaffenroth;U. Heber;B. Barlow;R. Ostensen
通讯作者：
N. Reindl;S. Geier;T. Kupfer;S. Bloemen;V. Schaffenroth;U. Heber;B. Barlow;R. Ostensen
亚矮星 B 主序双星 I 的轨道：sdB G0 系统 PG 1104 243
影响因子：
6.5
作者：
J. Vos;R. Ostensen;P. Degroote;K. D. Smedt;E. Green;U. Heber;H. Winckel;B. Acke;S. Bloemen;P. Cat;K. Exter;P. Lampens;R. Lombaert;T. Masseron;J. Menu;P. Neyskens;G. Raskin;K. Smolders;A. Tkachenko;E. Ringat;T. Rauch
通讯作者：
T. Rauch
亚光度O星的起源
DOI：
--
发表时间：
2010
期刊：
影响因子：
--
作者：
U. Heber;H. Hirsch
通讯作者：
H. Hirsch
半人马座ω极端水平分支上的氦-碳相关性
DOI：
--
发表时间：
2014
期刊：
影响因子：
--
作者：
M. Latour;S. Randall;G. Fontaine;G. Bono;A. Calamida;P. Brassard
通讯作者：
P. Brassard