Hot Subdwarf Stars Identified in Gaia DR2 with Spectra of LAMOST DR6 and DR7. II. Kinematics
作者： Yangping Luo , Péter Németh , Qida Li
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摘要: Combining the LAMOST radial velocities with Gaia parallaxes and proper motions, we presented 3D Galactic space motions orbits of 182 single-lined hot subdwarf stars. These stars have been identified by Lei et al. (2020) in DR2 DR6 DR7 spectra. He-rich log(y)>0 show largest standard deviations velocity components orbital parameters, while those -1 0 from merger channel double He white dwarf The fraction -1
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N Naslim, A. Hibbert, C. S. Jeffery, N. T. Behara, N. T. Behara, An extremely peculiar hot subdwarf with a 10 000-fold excess of zirconium, yttrium and strontium Monthly Notices of the Royal Astronomical Society. ,vol. 412, pp. 363- 370 ,(2011) , 10.1111/J.1365-2966.2010.17909.X
Z. Han, Ph. Podsiadlowski, A. E. Lynas-Gray, A binary model for the UV-upturn of elliptical galaxies (MNRAS version) arXiv: Astrophysics. ,(2007) , 10.1111/J.1365-2966.2007.12151.X
C. M. Copperwheat, L. Morales-Rueda, T. R. Marsh, P. F. L. Maxted, U. Heber, Radial-velocity measurements of subdwarf B stars Monthly Notices of the Royal Astronomical Society. ,vol. 415, pp. 1381- 1395 ,(2011) , 10.1111/J.1365-2966.2011.18786.X
Stéphane Vennes, Adéla Kawka, Péter Németh, A selection of hot subluminous stars in the GALEX survey – II. Subdwarf atmospheric parameters† Monthly Notices of the Royal Astronomical Society. ,vol. 427, pp. 2180- 2211 ,(2012) , 10.1111/J.1365-2966.2012.22009.X
Zh Han, Ph Podsiadlowski, AE Lynas-Gray, None, A binary model for the UV‐upturn of elliptical galaxies Monthly Notices of the Royal Astronomical Society. ,vol. 380, pp. 1098- 1118 ,(2007) , 10.1111/J.1365-2966.2007.12151.X
A. Kawka, S. Vennes, S. O'Toole, P. Németh, D. Burton, E. Kotze, D. A. H. Buckley, New binaries among UV-selected, hot subdwarf stars and population properties Monthly Notices of the Royal Astronomical Society. ,vol. 450, pp. 3514- 3548 ,(2015) , 10.1093/MNRAS/STV821
R.H. Ostensen, P.F.L. Maxted, C. Heuser, B.N. Barlow, B.T. Gänsicke, T. Kupfer, U. Heber, S. Geier, V. Schaffenroth, V. Schaffenroth, Hot subdwarf binaries from the MUCHFUSS project Analysis of 12 new systems and a study of the short-period binary population Astronomy and Astrophysics. ,vol. 576, ,(2015) , 10.1051/0004-6361/201425213
L. Morales-Rueda, P. F. L. Maxted, P. F. L. Maxted, R. C. North, R. C. North, U. Heber, T. R. Marsh, Orbital periods of 22 subdwarf B stars Monthly Notices of the Royal Astronomical Society. ,vol. 338, pp. 752- 764 ,(2003) , 10.1046/J.1365-8711.2003.06088.X
Philipp Podsiadlowski, Zhanwen Han, Natasha Ivanova, Natasha Ivanova, Tom R. Marsh, Pierre L. F. Maxted, The origin of subdwarf B stars – I. The formation channels Monthly Notices of the Royal Astronomical Society. ,vol. 336, pp. 449- 466 ,(2002) , 10.1046/J.1365-8711.2002.05752.X
B. Wang, X. Meng, X. Chen, Z. Han, The helium star donor channel for the progenitors of Type Ia supernovae Monthly Notices of the Royal Astronomical Society. ,vol. 395, pp. 847- 854 ,(2009) , 10.1111/J.1365-2966.2009.14545.X