Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Centre National de la Recherche ScientifiqueFR899 papers
- Massachusetts Institute of TechnologyUS680 papers
- University of Maryland, College ParkUS641 papers
- University of CambridgeGB616 papers
- Tsinghua UniversityCN574 papers
- Université Paris-SaclayFR566 papers
- University of BirminghamGB560 papers
- Eötvös Loránd UniversityHU557 papers
- Istituto Nazionale di Fisica Nucleare, Sezione di PisaIT552 papers
- Istituto Nazionale di Fisica Nucleare, Sezione di PerugiaIT546 papers
- Istituto Nazionale di Fisica Nucleare, Sezione di Roma IIT543 papers
- Istituto Nazionale di Fisica Nucleare, Sezione di GenovaIT533 papers
37 papers · 2 filters
Barium stars as tracers of s-process nucleosynthesis in AGB stars II. Using machine learning techniques on 169 stars
J. W. den Hartogh, A. Yagüe López, B. Cseh +7
We aim to analyse the abundance pattern of 169 Barium (Ba) stars, using machine learning techniques and the AGB final surface abundances predicted by Fruity and Monash stellar mode…
Cool, Luminous, and Highly Variable Stars in the Magellanic Clouds. II: Spectroscopic and Environmental Analysis of Thorne-Żytkow Object and Super-AGB Star Candidates
Anna J. G. O'Grady, Maria R. Drout, B. M. Gaensler +9
In previous work we identified a population of 38 cool and luminous variable stars in the Magellanic Clouds and examined 11 in detail in order to classify them as either Thorne-Żyt…
High-resolution spectroscopic analysis of four new chemically peculiar stars
M. P. Roriz, C. B. Pereira, S. Junqueira +3
We present detailed chemical compositions of four stars on the first-ascent red giant branch that are classified as chemically peculiar, but lack comprehensive analyses at high spe…
Korg: a modern 1D LTE spectral synthesis package
Adam J. Wheeler, Matthew W. Abruzzo, Andrew R. Casey +1
We present Korg, a new package for 1D LTE (local thermodynamic equilibrium) spectral synthesis of FGK stars, which computes theoretical spectra from the near-ultraviolet to the nea…
Survey for Distant Solar Twins (SDST) -- II. Design, observations and data
Fan Liu, Michael T. Murphy, Christian Lehmann +5
Studies of solar twins have key impacts on the astronomical community, but only 100--200 nearby solar twins ( 1 kpc) have been reliably identified over the last few decade…
Sustained FU Orionis-type outbursts from colliding discs in stellar flybys
Elisabeth M. A. Borchert, Daniel J. Price, Christophe Pinte +1
We perform 3D hydrodynamics simulations of disc-disc stellar flybys with on-the-fly Monte Carlo radiative transfer. We show that pre-existing circumstellar discs around both stars…
Hot Jupiter engulfment by a red giant in 3D hydrodynamics
Mike Y. M. Lau, Matteo Cantiello, Adam S. Jermyn +3
Hot Jupiters are gas giant planets with orbital periods of a few days and are found in 0.1-1% of Sun-like stars. They are expected to be engulfed during their host star's radial ex…
Investigating 2M1155-7919B: a Nearby, Young, Low-Mass Star Actively Accreting from a Nearly Edge-on, Dusty Disk
D. Annie Dickson-Vandervelde, Joel H. Kastner, Jonathan Gagné +5
We investigate the nature of an unusually faint member of the Cha Association ( pc, age Myr), the nearest region of star formation of age 8 Myr. This objec…
On the characterization of GJ 504: a magnetically active planet-host star observed by the Transiting Exoplanet Survey Satellite (TESS)
Maria Pia Di Mauro, Raffaele Reda, Savita Mathur +10
We present the results of the analysis of the photometric data collected in long and short-cadence mode by the Transiting Exoplanet Survey Satellite (TESS) for GJ 504, a well studi…
Nucleosynthetic yields of intermediate-mass primordial to extremely metal-poor stars
P. Gil-Pons, C. L. Doherty, S. W. Campbell +1
Abridged. We aim to better characterise the evolution and fates, and determine updated nucleosynthetic yields of intermediate-mass stars between primordial and EMP metallicity (Z=1…
A two-stage formalism for common-envelope phases of massive stars
Ryosuke Hirai, Ilya Mandel
We propose a new simple formalism to predict the orbital separations after common-envelope phases with massive star donors. We focus on the fact that massive red supergiants tend t…
3D simulations of AGB stellar winds -- I. Steady winds and dust formation
L. Siess, W. Homan, S. Toupin +1
Aims. We present the implementation of the treatment of particle ejection and dust nucleation in the smoothed particle hydrodynamics (SPH) code phantom. These developments represen…
The Gaia-ESO Public Spectroscopic Survey: Motivation, implementation, GIRAFFE data processing, analysis, and final data products
G. Gilmore, S. Randich, C. C. Worley +165
The Gaia-ESO Public Spectroscopic Survey is an ambitious project designed to obtain astrophysical parameters and elemental abundances for 100,000 stars, including large representat…
Origin of Plutonium-244 in the Early Solar System
Maria Lugaro, Andrés Yagüe López, Benjámin Soós +5
We investigate the origin in the early Solar System of the short-lived radionuclide 244Pu (with a half life of 80 Myr) produced by the rapid (r) neutron-capture process. We conside…
Bridging the Gap between Intermediate and Massive Stars I: Validation of MESA against the State-of-the-Art Monash Stellar Evolution Program for a 2 AGB Star
Giulia C. Cinquegrana, Meridith Joyce, Amanda I. Karakas
One--dimensional stellar structure and evolution programs are built using different physical prescriptions and algorithms, which means there can be variations between models' predi…
Empirical Stability Boundary for Hierarchical Triples
Max Tory, Evgeni Grishin, Ilya Mandel
The three-body problem is famously chaotic, with no closed-form analytical solutions. However, hierarchical systems of three or more bodies can be stable over indefinite timescales…
Modules for Experiments in Stellar Astrophysics (MESA): Time-Dependent Convection, Energy Conservation, Automatic Differentiation, and Infrastructure
Adam S. Jermyn, Evan B. Bauer, Josiah Schwab +19
We update the capabilities of the open-knowledge software instrument Modules for Experiments in Stellar Astrophysics (MESA). The new auto_diff module implements automatic different…
Thermal and Non-Thermal Properties of Active Region Recurrent Coronal Jets
Alin R. Paraschiv, Alina C. Donea, Philip G. Judge
We present observations of recurrent active region coronal jets and derive their thermal and non-thermal properties, by studying the physical properties of the plasma simultaneousl…
Integrated Mass Loss of Evolved Stars in M4 using Asteroseismology
Madeline Howell, Simon W. Campbell, Dennis Stello +1
Mass loss remains a major uncertainty in stellar modelling. In low-mass stars, mass loss is most significant on the red giant branch (RGB), and will impact the star's evolutionary…
Algebraic and machine learning approach to hierarchical triple-star stability
Pavan Vynatheya, Adrian S. Hamers, Rosemary A. Mardling +1
We present two approaches to determine the dynamical stability of a hierarchical triple-star system. The first is an improvement on the Mardling-Aarseth stability formula from 2001…
Viability of novae as sources of Galactic lithium
Alex J. Kemp, Amanda I. Karakas, Andrew R. Casey +3
Of all the light elements, the evolution of lithium (Li) in the Milky Way is perhaps the most difficult to explain. Li is difficult to synthesize and is easily destroyed, making mo…
Long-term evolution of post-explosion Helium-star Companions of Type Iax Supernovae
Yaotian Zeng, Zheng-Wei Liu, Alexander Heger +3
Supernovae of Type Iax (SNe Iax) are an accepted faint subclass of hydrogen-free supernovae. Their origin, the nature of the progenitor systems, however, is an open question. Recen…
Rejuvenated accretors have less bound envelopes: Impact of Roche lobe overflow on subsequent common envelope events
M. Renzo, E. Zapartas, S. Justham +5
Common-envelope (CE) evolution is an outstanding open problem in stellar evolution, critical to the formation of compact binaries including gravitational-wave sources. In the ``cla…
Common envelopes in massive stars II: The distinct roles of hydrogen and helium recombination
Mike Y. M. Lau, Ryosuke Hirai, Daniel J. Price +1
The role of recombination during a common-envelope event has been long debated. Many studies have argued that much of hydrogen recombination energy, which is radiated in relatively…