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
43 papers · 2 filters
An environmental analysis of the Type Ib SN 2019yvr and the possible presence of an inflated binary companion
Ning-Chen Sun, Justyn R. Maund, Paul A. Crowther +5
SN 2019yvr is the second Type Ib supernova (SN) with a possible direct detection of its progenitor (system); however, the spectral energy distribution (SED) of the pre-explosion so…
New Post-AGB star models as tools to understand AGB evolution and nucleosynthesis
Devika Kamath, Flavia Dell'Agli, Paolo Ventura +3
We study a sample of post-AGB stars in the Galaxy, with known surface chemical composition and s-process enrichment. The recent determination of the luminosities of these sources,…
Chaotic dynamics of wide triples induced by galactic tides: a novel channel for producing compact binaries, mergers, and collisions
Evgeni Grishin, Hagai B. Perets
Recent surveys show that wide ( AU) binaries and triples are abundant in the field. We study the long-term evolution of wide hierarchical triple systems and the role played…
Luminosities and masses of single Galactic Post-Asymptotic Giant Branch (Post-AGB) stars with distances from EDR3: The revelation of an -process diversity
Devika Kamath, Hans Van Winckel, Paolo Ventura +4
Post-AGB stars are exquisite probes of AGB nucleosynthesis. However, the previous lack of accurate distances jeopardised comparison with theoretical AGB models. The Early Da…
On the Fragility of Alfvén waves in a Stratified Atmosphere
Paul S. Cally
Complete asymptotic expansions are developed for slow, Alfvén and fast magnetohydrodynamic waves at the base of an isothermal three-dimensional (3D) plane stratified atmosphere. To…
The return of the spin period in DW Cnc and evidence of new high state outbursts
C. Duffy, G. Ramsay, D. Steeghs +16
DW Cnc is an intermediate polar which has previously been observed in both high and low states. Observations of the high state of DW Cnc have previously revealed a spin period at ~…
The most metal-rich stars in the universe: chemical contributions of low and intermediate mass asymptotic giant branch stars with metallicities between
Giulia C. Cinquegrana, Amanda I. Karakas
Low and intermediate mass stars with super solar metallicities comprise a known portion of the universe. Yet yields for asymptotic giant branch (AGB) stars with metallicities great…
The most metal-rich asymptotic giant branch stars
Amanda Karakas, Giulia Cinquegrana, Meridith Joyce
We present new stellar evolutionary sequences of very metal-rich stars evolved with the Monash Stellar Structure code and with MESA. The Monash models include masses of $1-8M_{\odo…
Constraining the Rotation Profile in a Low-Luminosity Subgiant with a Surface Rotation Measurement
T. Wilson, A. R. Casey, I. Mandel +3
Rotationally-induced mode splitting frequencies of low-luminosity subgiants suggest that angular momentum transport mechanisms are 1-2 orders of magnitude more efficient in these s…
Dynamics in a stellar convective layer and at its boundary: Comparison of five 3D hydrodynamics codes
R. Andrassy, J. Higl, H. Mao +18
Our ability to predict the structure and evolution of stars is in part limited by complex, 3D hydrodynamic processes such as convective boundary mixing. Hydrodynamic simulations he…
Common envelopes in massive stars: Towards the role of radiation pressure and recombination energy in ejecting red supergiant envelopes
Mike Y. M. Lau, Ryosuke Hirai, Miguel González-Bolívar +3
We perform 3D hydrodynamical simulations of a common-envelope event involving a 12 solar mass red supergiant donor. Massive stars are expected to be qualitatively different from lo…
The impact of metallicity on nova populations
Alex J. Kemp, Amanda I. Karakas, Andrew R. Casey +2
The metallicity of a star affects its evolution in a variety of ways, changing stellar radii, luminosities, lifetimes, and remnant properties. In this work, we use the population s…
First models of s process in AGB stars of solar metallicity for the stellar evolutionary code ATON with a novel stable explicit numerical solver
A. Yagüe López, D. A. García-Hernández, P. Ventura +4
Aims. We describe the first s-process post-processing models for asymptotic giant branch (AGB) stars of masses 3, 4 and 5 M at solar metallicity (Z=0.018) computed using the input…
The stellar beta-decay rate of 134Cs and its impact on the Barium nucleosynthesis in the s process
Kuo-Ang Li, Chong Qi, Maria Lugaro +5
We have calculated the stellar -decay rate of the important s-process branching point Cs based on the state of the art shell model calculations. At typical -process…
Aluminium-26 from massive binary stars II. Rotating single stars up to core-collapse and their impact on the early Solar System
Hannah E. Brinkman, J. W. den Hartogh, C. L. Doherty +2
Radioactive nuclei were present in the early Solar System, as inferred from analysis of meteorites. Many are produced in massive stars, either during their lives or their final exp…
Observational signatures of the surviving donor star in the double detonation model of Type Ia supernovae
Zheng-Wei Liu, Friedrich K. Roepke, Yaotian Zeng +1
The sub-Chandrasekhar mass double-detonation (DDet) scenario is a contemporary model for SNe Ia. The donor star in the DDet scenario is expected to survive the explosion and to be…
Chemical evidence for planetary ingestion in a quarter of Sun-like stars
Lorenzo Spina, Parth Sharma, Jorge Meléndez +5
Stellar members of binary systems are formed from the same material, therefore they should be chemically identical. However, recent high-precision studies have unveiled chemical di…
Heavy elements in barium stars
M. P. Roriz, M. Lugaro, C. B. Pereira +4
New elemental abundances for the neutron-capture elements Sr, Nb, Mo, Ru, La, Sm, and Eu are presented for a large sample of 180 barium (Ba) giant stars, a class of chemically pecu…
Gas and dust from extremely metal-poor AGB stars
P. Ventura, F. Dell'Agli, D. Romano +8
We study the evolution of extremely metal-poor AGB stars, with metallicities down to [Fe/H]=-5, to understand the main evolutionary properties, the efficiency of the processes able…
Benchmarking Hall-Induced Magnetoacoustic to Alfvén Mode Conversion in the Solar Chromosphere
Abbas Raboonik, Paul Cally
A 2.5D numerical model of magnetoacoustic-Alfvén linear mode conversions in the partially ionised low solar atmosphere induced by the Hall effect is surveyed, varying magnetic fiel…
Modeling the Remnants of Core-collapse Supernovae from Luminous Blue Variable stars
S. Ustamujic, S. Orlando, M. Miceli +8
LBVs are massive evolved stars that suffer sporadic and violent mass-loss events. They have been proposed as the progenitors of some core-collapse SNe, but this idea is still debat…
Circumbinary and circumstellar discs around the eccentric binary IRAS 04158+2805 -- a testbed for binary-disc interaction
Enrico Ragusa, Daniele Fasano, Claudia Toci +10
IRAS~04158+2805 has long been thought to be a very low mass T-Tauri star (VLMS) surrounded by a nearly edge-on, extremely large disc. Recent observations revealed that this source…
The Gaia-ESO Survey: A new approach to chemically characterising young open clusters II. Abundances of the neutron-capture elements Cu, Sr, Y, Zr, Ba, La, and Ce
M. Baratella, V. D'Orazi, V. Sheminova +32
Young open clusters (t<200 Myr) have been observed to exhibit several peculiarities in their chemical compositions, from a slightly sub-solar iron content, super-solar abundances o…
R-Process elements from magnetorotational hypernovae
D. Yong, C. Kobayashi, G. S. Da Costa +11
Neutron-star mergers were recently confirmed as sites of rapid-neutron-capture (r-process) nucleosynthesis. However, in Galactic chemical evolution models, neutron-star mergers alo…