HL
H. -G. Ludwig
astro-ph.SRastro-ph.GAastro-phastro-ph.IMastro-ph.EPastro-ph.COastro-ph.HEgr-qc
On Valency
published · living versionsW_n8zykk77·v1 · currentpublished
Orbital Parameters for 65 Wide Binary Systems: no evidence for gravitational anomaly at low acceleration
with L. Pasquini, R. Saglia, F. Patat, L. Berni +6
1 version
W_a59mzj45·v1published
W_fqtqk7qp·v1published
W_q4evxp3r·v1published
Preprints & journals
220 papers in the corpus · 1998–2026Orbital Parameters for 65 Wide Binary Systems: no evidence for gravitational anomaly at low acceleration2610.28220v1 · L. Pasquini, R. Saglia, F. Patat et al.2026 · 0 citationsarXivon Valency
Kilogauss magnetic fields from simulations of small-scale dynamo action in the convective envelope of a white dwarf2608.06003v1 · Fabio Riva, Tim Cunningham, Hans-Gunter Ludwig et al.2026 · 0 citationsarXiv
Evidence for elemental diffusion in the eclipsing binary star AI Phoenicis2607.17976v1 · Pierre F. L. Maxted, Nicholas Storm, Andreas J. Korn et al.2026 · 0 citationsarXiv
Solar photospheric spectrum microvariability III. Radial velocities and line profiles in magnetic active-region granulation2604.13166v1 · Dainis Dravins, Hans-Gunter Ludwig, Matthias Steffen et al.2026 · 0 citationsA&A 710, A30 (2026)
Modeling brightness temperature of sunspots using ALMA single-dish observations2602.18069v1 · F. Matkovi'c, R. Brajsa, A. O. Benz et al.2026 · 0 citationsarXiv
Wide binaries without viable bound Newtonian orbits2602.04661v1 · L. Pasquini, R. Saglia, F. Patat et al.2026 · 0 citationsarXiv
Unveiling the nature of HE 0107-52402510.18498v1 · E. Caffau, M. Steffen, P. Molaro et al.2025 · 5 citationsA&A 704, A238 (2025)
Solar photospheric spectrum microvariability2509.18242v1 · Dainis Dravins, Hans-Gunter Ludwig2025 · 0 citationsarXiv
Modeling brightness temperature of prominences on the solar disk using ALMA single-dish observations2509.08605v1 · F. Matkovi'c, R. Brajsa, A. O. Benz et al.2025 · 1 citationarXiv
Granulation signatures in 3D hydrodynamical simulations: evaluating background model performance using a Bayesian nested sampling framework2507.11699v1 · Jens R. Larsen, Mia S. Lundkvist, Guy R. Davies et al.2025 · 2 citationsA&A 701, A92 (2025)
The Gaia RVS Benchmark Stars. III . Confirmed and New High Radial Velocity Stars From Gaia DR32507.07558v1 · Elisabetta Caffau (LIRA), David Katz (LIRA), Piercarlo Bonifacio (LIRA) et al.2025 · 3 citationsAstronomical Notes / Astronomische Nachrichten, 2025
Testing gravity with wide binaries -- 3D velocities and distances of wide binaries from Gaia and HARPS2506.05049v1 · R. Saglia, L. Pasquini, F. Patat et al.2025 · 6 citationsA&A 699, A151 (2025)
SDSS J102915.14+172927.9: Revisiting the chemical pattern2411.13096v1 · E. Caffau (GEPI), P. Bonifacio (GEPI), L. Monaco (UNAB) et al.2024 · 12 citationsAstronomy and Astrophysics - A&A, 2024, 691, pp.A245
A regularisation technique to precisely infer limb darkening using transit measurements: can we estimate stellar surface magnetic fields?2410.07636v1 · Kuldeep Verma, Pierre F. L. Maxted, Anjali Singh et al.2024 · 0 citationsarXiv
The PLATO Mission2406.05447v2 · Heike Rauer, Conny Aerts, Juan Cabrera et al.2024 · 13 citationsarXiv
Solar photospheric spectrum microvariability II. Observed relations to magnetic activity and radial-velocity modulation2404.08035v1 · Dainis Dravins, Hans-Gunter Ludwig2024 · 7 citationsA&A 687, A60 (2024)
Calculated brightness temperatures of solar structures compared with ALMA and Metsähovi measurements2402.18978v1 · F. Matkovi'c, R. Brajsa, M. Kuhar et al.2024 · 2 citationsarXiv
Stellar Surface Magnetic Fields Impact Limb Darkening2403.00118v1 · Nadiia M. Kostogryz, Alexander I. Shapiro, Veronika Witzke et al.2024 · 1 citationarXiv
The Gaia RVS benchmark stars II. A sample of stars selected for their Gaia high radial velocity2402.02878v1 · E. Caffau (GEPI), D. Katz (GEPI), A. G'omez (GEPI) et al.2024 · 4 citationsarXiv
Entropy-calibrated stellar modeling: Testing and improving the use of prescriptions for entropy of adiabatic convection2401.15172v1 · L. Manchon, M. Deal, M.-J. Goupil et al.2024 · 0 citationsarXiv
Solar Photospheric Spectrum Microvariability I. Theoretical searches for proxies of radial-velocity jittering2308.10937v1 · Dainis Dravins (Lund), Hans-Gunter Ludwig (Heidelberg)2023 · 1 citationA&A 679, A3 (2023)
Implications of time-dependent molecular chemistry in metal-poor dwarf stars2305.18854v1 · S.A.Deshmukh, H.-G. Ludwig2023 · 2 citationsA&A 675, A146 (2023)
Accurate mass-radius ratios for Hyades white dwarfs2304.10485v1 · L. Pasquini, A.F. Pala, M. Salaris et al.2023 · 9 citationsarXiv
Solar center-to-limb variation in Rossiter-McLaughlin and exoplanet transmission spectroscopy2303.09169v1 · Ansgar Reiners, Fei Yan, Momo Ellwarth et al.2023 · 11 citationsA&A 673, A71 (2023)
Differences in physical properties of coronal bright points and their ALMA counterparts within and outside coronal holes2212.09443v1 · F. Matkovi'c, R. Brajsa, M. Temmer et al.2022 · 6 citationsA&A 670, A146 (2023)
The solar photospheric silicon abundance according to CO5BOLD: Investigating line broadening, magnetic fields, and model effects2212.07485v1 · S. A. Deshmukh, H. -G. Ludwig, A. Kucinskas et al.2022 · 7 citationsA&A 668, A48 (2022)
First release of PLATO consortium stellar limb-darkening coefficients2211.16510v1 · Giuseppe Morello, Jeffrey Gerber, Bertrand Plez et al.2022 · 4 citationsRNAAS, 6, 248 (2022)
The Gaia-ESO Public Spectroscopic Survey: Motivation, implementation, GIRAFFE data processing, analysis, and final data products2208.05432v1 · G. Gilmore, S. Randich, C. C. Worley et al.2022 · 136 citationsA&A 666, A120 (2022)
Observational constraints on the origin of the elements. IV: The standard composition of the Sun2203.02255v1 · Ekaterina Magg, Maria Bergemann, Aldo Serenelli et al.2022 · 219 citationsA&A 661, A140 (2022)
Interpolation of spectra from 3D model atmospheres2202.12086v1 · S. Bertran de Lis, C. Allende Prieto, H.-G. Ludwig et al.2022 · 6 citationsarXiv
TOPoS VI. The metal-weak tail of the metallicity distribution functions of the Milky Way and of the Gaia-Sausage-Enceladus structure2105.08360v2 · P Bonifacio (GEPI), L Monaco (UNAB), S Salvadori et al.2021 · 0 citationsA&A 666, C1 (2022)
ALMA small-scale features in the quiet Sun and active regions2105.03644v1 · R. Brajsa, I. Skokic, D. Sudar et al.2021 · 11 citationsA&A 651, A6 (2021)
Spatially resolved spectroscopy across stellar surfaces. V. Observational prospects: Toward Earth-like exoplanet detection2103.04996v1 · Dainis Dravins (Lund), Hans-Gunter Ludwig (Heidelberg), Bernd Freytag (Uppsala)2021 · 19 citationsA&A 649, A17 (2021)
Spatially resolved spectroscopy across stellar surfaces. IV. F, G, & K-stars: Synthetic 3D spectra at hyper-high resolution2103.03880v1 · Dainis Dravins (Lund), Hans-Gunter Ludwig (Heidelberg), Bernd Freytag (Uppsala)2021 · 15 citationsA&A 649, A16 (2021)
Horizontal spreading of planetary debris accreted by white dwarfs2102.09564v1 · Tim Cunningham, Pier-Emmanuel Tremblay, Evan B. Bauer et al.2021 · 49 citationsarXiv
3D spectroscopic analysis of helium-line white dwarfs2011.12693v1 · Elena Cukanovaite, Pier-Emmanuel Tremblay, Pierre Bergeron et al.2020 · 43 citationsarXiv
The signature of granulation in a solar power spectrum as seen with COBOLD2011.10045v1 · Mia S. Lundkvist (1, Hans-Gunter Ludwig, Remo Collet et al.2020 · 5 citationsarXiv
Velocity-intensity asymmetry reversal of solar radial p-modes2011.02439v1 · J. Philidet, K. Belkacem, H.-G. Ludwig et al.2020 · 4 citationsA&A 644, A171 (2020)
The solar gravitational redshift from HARPS-LFC Moon spectra. A test of the General Theory of Relativity2009.10558v2 · J. I. Gonz'alez Hern'andez, R. Rebolo, L. Pasquini et al.2020 · 39 citationsA&A 643, A146 (2020)
Chemically peculiar A and F stars with enhanced s-process and iron-peak elements: stellar radiative acceleration at work2006.03329v1 · Maosheng Xiang, Hans-Walter Rix, Yuan-Sen Ting et al.2020 · 21 citationsarXiv
A high-precision abundance analysis of the nuclear benchmark star HD 202001.11038v1 · Michael Hanke, Camilla Juul Hansen, Hans-Gunter Ludwig et al.2020 · 17 citationsA&A 635, A104 (2020)
Modelling the asymmetries of the Sun's radial -mode line profiles2001.10271v1 · J. Philidet, K. Belkacem, R. Samadi et al.2020 · 9 citationsA&A 635, A81 (2020)
Calibration of the mixing length theory for structures of helium-dominated atmosphere white dwarfs1909.10532v1 · Cukanovaite E., P.-E. Tremblay, B. Freytag et al.2019 · 35 citationsarXiv
The Li/Li isotopic ratio in the metal-poor binary CS22876--0321907.05109v2 · J.I. Gonz'alez Hern'andez, P. Bonifacio, E. Caffau et al.2019 · 18 citationsA&A 628, A111 (2019)
Masses of the Hyades white dwarfs: A gravitational redshift measurement1907.01265v1 · L. Pasquini, A. F. Pala, H.-G. Ludwig et al.2019 · 18 citationsarXiv
Convective Overshoot and Macroscopic Diffusion in Pure-Hydrogen Atmosphere White Dwarfs1906.11252v1 · Tim Cunningham, Pier-Emmanuel Tremblay, Bernd Freytag et al.2019 · 67 citationsarXiv
4MOST: Project overview and information for the First Call for Proposals1903.02464v2 · R.S. de Jong, O. Agertz, A. Agudo Berbel et al.2019 · 406 citationsThe Messenger, 2019, 175, 3
4MOST Consortium Survey 2: The Milky Way Halo High-Resolution Survey1903.02468v2 · N. Christlieb, C. Battistini, P. Bonifacio et al.2019 · 15 citationsThe Messenger, 2019, 175, 26
Two-dimensional non-LTE \ion{O}{I} 777\,nm line formation in radiation hydrodynamics simulations of Cepheid atmospheres1903.02109v2 · V. Vasilyev, A. M. Amarsi, H.-G. Ludwig et al.2019 · 10 citationsA&A 624, A85 (2019)
Observations of the solar chromosphere with ALMA and comparison with theoretical models1812.07293v1 · R. Brajsa, D. Sudar, I. Skokic et al.2018 · 0 citationsarXiv
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