References
Animation of a fit procedure with 31 iterations.
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Stellar Atmosphere Models and Spectroscopic Fits
- A spectral model for the sdB+K binary PB 3877
- High resolution UV-optical spectral model for Feige 86 [best on wide screen]
- Disentangling of composite spectrum hot subdwarf binaries [best on wide screen]
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Animation and Media Content
- Cover image and galactic trajectory animation for PB 3877
- Content writing for World of Phenomena
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Service Observing
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Web-development
- This webpage
Related publications
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Unveiling the Evolutionary State of Three B Supergiant Stars: PU Gem, ϵ CMa, and η CMa
Sánchez Arias, Julieta Paz; Németh, Péter; de Almeida, Elisson Saldanha da Gama; Ruiz Diaz, Matias Agustin; Kraus, Michaela; Haucke, Maximiliano
2023 - Galaxies - Vol. 11, issue 5, p. 93. - 2023Galax..11...93S
Astroserver reference: M1DE05
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Unveiling the Evolutionary State of Three B Supergiant Stars: PU Gem, ϵ CMa, and η CMa
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Mass distribution for single-lined hot subdwarf stars in LAMOST
Lei, Zhenxin; He, Ruijie; Nemeth, Peter; Zou, Xuan; Xiao, Huaping; Yang, Yong; Zhao, Jingkun
2023 - The Astrophysical Journal - Volume 953, Issue 2, id.122, 16 pp. - 2023ApJ...953..122L
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Mass distribution for single-lined hot subdwarf stars in LAMOST
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Minute-cadence observations of the LAMOST fields with the TMTS: II. Catalogues of short-period variable stars from the first 2-yr surveys
Lin, Jie; Wang, Xiaofeng; Mo, Jun; Xi, Gaobo; Filippenko, Alexei V.; Yan, Shengyu; Brink, Thomas G.; Yang, Yi; Wu, Chengyuan; Németh, Péter; Li, Gaici; Guo, Fangzhou; Guo, Jincheng; Cai, Yongzhi; Xiong, Heran; Zheng, WeiKang; Liu, Qichun; Zhang, Jicheng; Jiang, Xiaojun; Chen, Liyang; Xia, Qiqi; Peng, Haowei; Chen, Zhihao; Li, Wenxiong; Lin, Weili; Xiang, Danfeng; Ma, Xiaoran; Liu, Jialian
2023 - Monthly Notices of the Royal Astronomical Society - Volume 523, Issue 2, pp.2172-2192 - 2023MNRAS.523.2172L
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Minute-cadence observations of the LAMOST fields with the TMTS: II. Catalogues of short-period variable stars from the first 2-yr surveys
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Revealing the Binarity of HD 36030 — One of the Hottest Flare Stars
Maryeva, Olga; Németh, Péter; Karpov, Sergey
2023 - Galaxies - vol. 11, issue 2, p. 55 - 2023Galax..11...55M
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Revealing the Binarity of HD 36030 — One of the Hottest Flare Stars
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Variable Blue Straggler Stars in the Open Cluster NGC 6819 Observed in the Kepler "Superstamp" Field
Guzik, Joyce A.; Baran, Andrzej S.; Sanjayan, Sachu; Németh, Péter; Hedlund, Anne M.; Jackiewicz, Jason; Dauelsberg, Lori R.
2023 - The Astronomical Journal, Volume 165, Issue 5, id.188, 15 pp. - 2023AJ....165..188G
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Variable Blue Straggler Stars in the Open Cluster NGC 6819 Observed in the Kepler "Superstamp" Field
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A search for variable subdwarf B stars in TESS Full Frame Images III. An update on variable targets in both ecliptic hemispheres - contamination analysis and new sdB pulsators
Sahoo, S. K.; Baran, A. S.; Worters, H. L.; Németh, P.; Kilkenny, D.
2023 - Monthly Notices of the Royal Astronomical Society - Volume 519, Issue 2, pp.2486-2499 - 2023MNRAS.519.2486S
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A search for variable subdwarf B stars in TESS Full Frame Images III. An update on variable targets in both ecliptic hemispheres - contamination analysis and new sdB pulsators
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An 18.9 min blue large-amplitude pulsator crossing the "Hertzsprung gap" of hot subdwarfs
Lin, Jie; Wu, Chengyuan; Wang, Xiaofeng; Németh, Péter; Xiong, Heran; Wu, Tao; Filippenko, Alexei V.; Cai, Yongzhi; Brink, Thomas G.; Yan, Shengyu; Zeng, Xiangyun; Luo, Yangping; Xiang, Danfeng; Zhang, Jujia; Zheng, WeiKang; Yang, Yi; Mo, Jun; Xi, Gaobo; Zhang, Jicheng; Iskandar, Abdusamatjan; Esamdin, Ali; Jiang, Xiaojun; Sai, Hanna; Wei, Zixuan; Chen, Liyang; Guo, Fangzhou; Chen, Zhihao; Li, Wenxiong; Lin, Weili; Lin, Han; Zhang, Xinghan
2023 - Nature Astronomy - Volume 7, p. 223-233 - 2023NatAs...7..223L
Astroserver reference: UMVVTX
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An 18.9 min blue large-amplitude pulsator crossing the "Hertzsprung gap" of hot subdwarfs
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Hot Subdwarf Stars Identified in LAMOST DR8 with Single-lined and Composite Spectra
Lei, Zhenxin; He, Ruijie; Németh, Péter; Vos, Joris; Zou, Xuan; Hu, Ke; Xiao, Huaping; Yan, Huahui; Zhao, Jingkun
2023 - The Astrophysical Journal - Volume 942, Issue 2, id.109, 15 pp. - 2023ApJ...942..109L
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Hot Subdwarf Stars Identified in LAMOST DR8 with Single-lined and Composite Spectra
2023
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Variable Star Population in the Open Cluster NGC 6819 Observed by the Kepler Spacecraft
Sanjayan, S.; Baran, A. S.; Németh, P.; Kinemuchi, K.
2022 - Acta Astronomica - vol 72, no 4, p. 267-295 - 2022AcA....72..267S
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Variable Star Population in the Open Cluster NGC 6819 Observed by the Kepler Spacecraft
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A variable star population in the open cluster NGC 6791 observed by the Kepler spacecraft
Sachu Sanjayan, Andrzej S. Baran, Peter Nemeth, Karen Kinemuchi, Jakub Ostrowski, Sumanta Kumar Sahoo
2022 - Acta Astronomica - vol 72, no 2, p. 77-102 - 2022AcA....72...77S
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A variable star population in the open cluster NGC 6791 observed by the Kepler spacecraft
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Asteroseismology of hot subdwarf B stars observed with TESS: discovery of two new gravity mode pulsating stars
Uzundag, Murat; Silvotti, Roberto; Baran, Andrzej S.; Vuckovic, Maja; Nemeth, Péter; Sahoo, Sumanta K.; Reed, Mike
2022 - Astronomy & Astrophysics - Accepted - 2022arXiv221202950U
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Asteroseismology of hot subdwarf B stars observed with TESS: discovery of two new gravity mode pulsating stars
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Short-period pulsating hot-subdwarf stars observed by TESS. I. Southern ecliptic hemisphere
Baran, A. S.; Van Grootel, V.; Østensen, R. H.; Worters, H. L.; Sahoo, S. K.; Sanjayan, S.; Charpinet, S.; Nemeth, P.; Telting, J. H.; Kilkenny, D.
2022 - Astronomy & Astrophysics - Volume 669, id.A48, 18 pp. - 2023A%26A...669A..48B
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Short-period pulsating hot-subdwarf stars observed by TESS. I. Southern ecliptic hemisphere
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A Roche lobe-filling hot subdwarf and white dwarf binary: possible detection of an ejected common envelope
Li, Jiangdan; Onken, Christopher A.; Wolf, Christian; Németh, Péter; Bessell, Mike; Li, Zhenwei; Zhang, Xiaobin; Li, Jiao; Wang, Luqian; Li, Lifang; Luo, Yangping; Chen, Hailiang; Ji, Kaifan; Chen, Xuefei; Han, Zhanwen
2022 - Monthly Notices of the Royal Astronomical Society - Volume 515, Issue 3, pp.3370-3382 - 2022MNRAS.515.3370L
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A Roche lobe-filling hot subdwarf and white dwarf binary: possible detection of an ejected common envelope
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Extremely low-mass white dwarf stars observed in Gaia DR2 and LAMOST DR8
Wang, K.; Németh, P.; Luo, Y.; Chen, X.; Jiang, Q.; Cao, X.
2022 - The Astrophysical Journal - Volume 936, Issue 1, id.5, 13 pp. - 2022ApJ...936....5W
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Extremely low-mass white dwarf stars observed in Gaia DR2 and LAMOST DR8
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Filling the gap between synchronized and non-synchronized sdBs in
short-period sdBV+dM binaries with TESS: TIC 137608661, a new system with a
well defined rotational splitting
Silvotti, R.; Németh, P.; Telting, J. H.; Baran, A. S.; Østensen, R. H.; Ostrowski, J.; Sahoo S. K.; Prins, S.
2022 - Monthly Notices of the Royal Astronomical Society - Volume 511, Issue 2, pp.2201-2217 - 2022MNRAS.511.2201S
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Filling the gap between synchronized and non-synchronized sdBs in
short-period sdBV+dM binaries with TESS: TIC 137608661, a new system with a
well defined rotational splitting
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Pulsating subdwarf B stars in the oldest open cluster NGC 6791
Sanjayan, S.; Baran, A. S.; Ostrowski, J.; Németh, P.; Pelisoli, I.; Østensen, R.; Kern, J. W.; Reed, M. D.; Sahoo, S. K.
2022 - Monthly Notices of the Royal Astronomical Society - Volume 509, Issue 1, p.763-777 - 2022MNRAS.509..763S
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Pulsating subdwarf B stars in the oldest open cluster NGC 6791
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New Variable Hot Subdwarf Stars Identified from Anomalous Gaia Flux Errors, Observed by TESS, and Classified via Fourier Diagnostics
Barlow, B. N.; Corcoran, K. A.; Parker, I. M.; Kupfer, T.; Németh, P.; Hermes, J. J.; Lopez, I. D.; Frondorf, W. J.; Vestal, D.; Holden, J.
2022 - The Astrophysical Journal - Volume 928, Issue 1, id.20, 22 pp. - 2022ApJ...928...20B
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New Variable Hot Subdwarf Stars Identified from Anomalous Gaia Flux Errors, Observed by TESS, and Classified via Fourier Diagnostics
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Orbital and atmospheric parameters of two wide O-type subdwarf binaries: BD−11° 162 and Feige 80
Molina, F.; Vos, J.; Németh, P.; Østensen, R. H.; Vučković, M.; Tkachenko, A.; van Winckel, H.
2022 - Astronomy & Astrophysics - Volume 658, id.A122, 22 pp. - 2022A&A...658A.122M
Astroserver reference: EZZ74T
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Orbital and atmospheric parameters of two wide O-type subdwarf binaries: BD−11° 162 and Feige 80
2022
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The first heavy-metal hot subdwarf composite binary SB 744
Németh, P.; Vos, J.; Molina, F.; Bastian, A.
2021 - Astronomy & Astrophysics - Volume 653, id.A3 - 2021A&A...653A...3N
Astroserver reference: TC43IV
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The first heavy-metal hot subdwarf composite binary SB 744
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Hot subdwarf Atmospheric parameters, Kinematics, and Origins - Based on 1587 hot subdwarf stars observed in Gaia DR2 and LAMOST DR7
Luo, J.; Németh, P.; Wang, K; Wang, X; Han, Z.
2021 - The Astrophysical Journal Supplement Series - Volume 256, Issue 2, id.28, 22 pp - 2021ApJS..256...28L
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Hot subdwarf Atmospheric parameters, Kinematics, and Origins - Based on 1587 hot subdwarf stars observed in Gaia DR2 and LAMOST DR7
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Asteroseismic analysis of variable hot subdwarf stars observed with TESS I. The mean g-mode period spacings in hot subdwarf B stars
Uzundag, M.; Vučković, M.; Németh, P.; Bertolami, M. M.; Silvotti, R.; Baran, A. S.; Telting, J. H.; Reed, M.; Shoaf, K. A.; Østensen, R. H.; Sahoo, S. K.
2021 - Astronomy & Astrophysics - Volume 651, id.A121 - 2021A&A...651A.121U
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Asteroseismic analysis of variable hot subdwarf stars observed with TESS I. The mean g-mode period spacings in hot subdwarf B stars
2021
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Hot Subdwarf Stars Identified in Gaia DR2 with Spectra of LAMOST DR6 and DR7. II. Kinematics
Luo, Y.; Németh, P.; Li Q.
2020 - The Astrophysical Journal - Volume 898, Issue 1, id.64 - 2020ApJ...898...64L
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Hot Subdwarf Stars Identified in Gaia DR2 with Spectra of LAMOST DR6 and DR7. II. Kinematics
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Composite Spectrum Hot Subdwarf Binaries
Németh, P.
2020 - Contributions of the Astronomical Observatory Skalnaté Pleso - Volume 50, Number 2, 546-551. - 2020CoSka..50..546N
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Composite Spectrum Hot Subdwarf Binaries
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TESS observations of sdBV stars: extraordinarily short-period gravity modes in CD-28° 1974
Reed, M. D.; Shoaf, K. A.; Németh, P.; Vos, J.; Uzundag, M.; Baran, A. S.; Sahoo, S. K.; Jeffery, C. S.; Telting, J. H.; Østensen, R. H.
2020 - Monthly Notices of the Royal Astronomical Society - Volume 493, Issue 4, p.5162-5169 - 2020MNRAS.493.5162R
Astroserver reference: FC6QRB
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TESS observations of sdBV stars: extraordinarily short-period gravity modes in CD-28° 1974
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Hot Subdwarf All Southern Sky Fast Transit Survey with the EVRYSCOPE
Ratzloff, Jeffrey K.; Barlow, Brad N.; Németh, Péter; Corbett, Henry T.; Walser, Stephen; Galliher, Nathan W.; Glazier, Amy; Howard, Ward S.; Law, Nicholas M.
2020 - The Astrophysical Journal - Volume 890, Issue 2, id.126 - 2020ApJ...890..126R
Astroserver reference: EVRY01
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Hot Subdwarf All Southern Sky Fast Transit Survey with the EVRYSCOPE
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Hot subdwarf stars identified in Gaia DR2 with spectra of LAMOST DR6 and DR7 I.: Single-lined spectra
Lei, Zhenxin; Zhao, Jingkun; Németh, Péter; Zhao, Gang
2020 - The Astrophysical Journal - Volume 889, Issue 2, id.117 - 2020ApJ...889..117L
Astroserver reference: D879YE, D880YE
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Hot subdwarf stars identified in Gaia DR2 with spectra of LAMOST DR6 and DR7 I.: Single-lined spectra
2020
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New hot subdwarf stars identified in Gaia DR2 with LAMOST DR5 spectra - II
Lei, Zhenxin; Zhao, Jingkun; Németh, Péter; Zhao, Gang
2019 - Astrophysical Journal - Volume 881, Issue 2, article id. 135, 12 pp. - 2019ApJ...881..135L
Astroserver reference: XD8O2C
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New hot subdwarf stars identified in Gaia DR2 with LAMOST DR5 spectra - II
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Hot subdwarf stars observed in Gaia DR2 and LAMOST DR5
Luo, Yangping; Németh, Péter; Deng, Licai; Han, Zhanwen
2019 - Astrophysical Journal - Volume 881, Issue 1, article id. 7, 16 pp. - 2019ApJ...881....7L
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Hot subdwarf stars observed in Gaia DR2 and LAMOST DR5
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PB 8783: the first sdO star suitable for asteroseismic modeling?
Van Grootel, V; Randall, S. K.; Latour, M.; Németh, P.; Fontaine, G.; Brassard, P.; Charpinet, S.; Green, E. M.
2019 - Proceedings of the PHOST "Physics of Oscillating Stars" - Accepted - 2019arXiv190500654V
Astroserver reference: KQI0NK
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PB 8783: the first sdO star suitable for asteroseismic modeling?
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Searching for hot subdwarf stars from the LAMOST Spectra. II. - Pure spectroscopic identification method for hot subdwarfs
Lei, Zhenxin; Bu, Yude; Zhao, Jingkun; Németh, Péter; Zhao, Gang
2019 - Publications of the Astronomical Society of Japan - Volume 71, Issue 2, id.41 - 2019PASJ...71...41L
Astroserver reference: W00QEL
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Searching for hot subdwarf stars from the LAMOST Spectra. II. - Pure spectroscopic identification method for hot subdwarfs
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Two p-mode dominated subdwarf B pulsators in binaries with F-star companions observed with K2
Reed, M.; Telting, J.; Ketzer, L.; Crooke, J.; Baran, A.; Vos, J.; Nemeth, P.; Østensen, R. H.; Jeffery, S.
2019 - Monthly Notices of the Royal Astronomical Society - Volume 483, Issue 2, 2282-2299 - 2019MNRAS.483.2282R
Astroserver reference: B7XWR0
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Two p-mode dominated subdwarf B pulsators in binaries with F-star companions observed with K2
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XTgrid Live: Online spectral analyses with Tlusty models
Németh, P.
2019 - Astronomical Society of the Pacific Conference Series (ASPCS) - Vol. 519, p.117 - 2019ASPC..519..117N
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XTgrid Live: Online spectral analyses with Tlusty models
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The orbital period - mass ratio relation of wide sdB+MS binaries and its application to the stability of RLOF
Vos, J.; Vučković, M.; Chen, X.; Han, Z.; Boudreaux, T.; Barlow, B. N.; Østensen, R. H.; Németh, P.
2019 - Monthly Notices of the Royal Astronomical Society - Volume 482, Issue 4, 4592-4605 - 2019MNRAS.482.4592V
Astroserver references: KW32YZ, EZZ74T
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The orbital period - mass ratio relation of wide sdB+MS binaries and its application to the stability of RLOF
2019
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New hot subdwarf stars identified in Gaia DR2 with LAMOST DR5 spectra
Lei, Z.; Zhao, J.; Németh, P.; Zhao, G.
2018 - The Astrosphysical Journal - Volume 868, Issue 1, 9, article id. 70 - 2018ApJ...868...70L
Astroserver references: X074VU, KS5NVO
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New hot subdwarf stars identified in Gaia DR2 with LAMOST DR5 spectra
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A quantitative NLTE analysis of visual and ultraviolet spectra of four helium-rich subdwarf O stars
Schindewolf, M.; Németh, P.; Heber, U.; Battich, T.; Miller Bertolami, M. M.; Irrgang, A.; Latour, M.
2018 - Astronomy & Astrophysics - Volume 620, 28, id.A36 - 2018A&A...620A..36S
Astroserver reference: KX9CPP
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A quantitative NLTE analysis of visual and ultraviolet spectra of four helium-rich subdwarf O stars
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Evolutionary Constraints on the Long-period Subdwarf B Binary PG 1018-047
Deca, J.; Vos, J.; Nemeth, P.; Maxted, P. F. L.; Copperwheat, C. M.; Marsh, T. R.; Østensen, R. H.
2018 - Monthly Notices of the Royal Astronomical Society - Volume 474, Issue 1, 433-442 - 2018MNRAS.474..433D
Astroserver reference: L0BDZP
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Evolutionary Constraints on the Long-period Subdwarf B Binary PG 1018-047
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Composite hot-subdwarf binaries – I. The spectroscopically confirmed sdB sample
Vos, J.; Németh, P.; Vučković, M.; Østensen, R. H.; Parsons, S.
2018 - Monthly Notices of the Royal Astronomical Society - Volume 473, Issue 1, 693-709 - 2018MNRAS.473..693V
Astroserver reference: KW32YZ
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Composite hot-subdwarf binaries – I. The spectroscopically confirmed sdB sample
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A FEROS survey of hot subdwarf stars
Vennes, S.; Németh, P.; Kawka, A.
Poster: Eighth Meeting on Hot Subdwarf Stars and Related Objects, sdOB8, Kraków (Poland)
2018 - Open Astronomy - Volume 27, Issue 1, 7-13 - 2018OAst...27....7V
Astroserver reference: VPD0AJ
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A FEROS survey of hot subdwarf stars
2018
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An unusual white dwarf star may be a surviving remnant of a subluminous Type Ia supernova
Vennes, S.; Nemeth, P.; Kawka, A.; Thorstensen, J. R.; Khalack, V.; Ferrario, L.; Alper, E. H.
2017 - Science, August 18 Issue: Vol. 357, Issue 6352, pp. 680-683, DOI: 10.1126/science.aam8378
Astroserver reference: NWKZKA
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An unusual white dwarf star may be a surviving remnant of a subluminous Type Ia supernova
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Atomic diffusion in the atmosphere of Feige 86
Németh, P.
Poster: Eighth Meeting on Hot Subdwarf Stars and Related Objects, sdOB8, Kraków (Poland)
2017 - Open Astronomy - Volume 26, Issue 1, 280-284 - 2017OAst...26..280N
Astroserver reference: ASYYL4
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Atomic diffusion in the atmosphere of Feige 86
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Astroserver – Research Services in the Stellar Webshop
Németh, P.
Talk: Eighth Meeting on Hot Subdwarf Stars and Related Objects, sdOB8, Kraków (Poland)
2017 - Open Astronomy - Volume 26, Issue 1, 179-186 - 2017OAst...26..179N
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Astroserver – Research Services in the Stellar Webshop
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- Short article about Supernovae on World of Phenomena
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K2 observations of pulsating subdwarf B stars: Analysis of EPIC 203948264 observed during Campaign 2
Ketzer, L.; Reed, M.D.; Baran, A.S.; Németh, P.; Telting, J.H.; Østensen, R.H.; Jeffery, C.S.
2017 - Monthly Notices of the Royal Astronomical Society - Volume 467, Issue 1, 461-468 - 2017MNRAS.467..461K
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K2 observations of pulsating subdwarf B stars: Analysis of EPIC 203948264 observed during Campaign 2
2017
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An extremely fast halo hot subdwarf star in a wide binary system
Németh, P.; Ziegerer, E.; Irrgang, A.; Geier, S.; Fürst, F.; Kupfer, T.; Heber, U.
2016 - Astrophysical Journal Letters - Volume 821, L13 - 2016ApJL..821L..13N
Astroserver reference: FXRU96
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An extremely fast halo hot subdwarf star in a wide binary system
2016
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2015
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2014
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2013
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2012
