168 citations · 774 across the 21 of their papers we have counts for
13 papers · 1 filter
On the Origin of the Bimodal Rotational Velocity Distribution in Stellar Clusters: Rotation on the Pre-Main Sequence
Nate Bastian, Sebastian Kamann, Louis Amard +3
We address the origin of the observed bimodal rotational distribution of stars in massive young and intermediate age stellar clusters. This bimodality is seen as split main sequenc…
The IACOB project. VI. On the elusive detection of massive O-type stars close to the ZAMS
G. Holgado, S. Simón-Díaz, L. Haemmerlé +7
The apparent lack of massive O-type stars near the zero-age main sequence (at ages < 2 Myr) is a topic widely discussed. Different explanations for this elusive detection have been…
Maximally accreting supermassive stars: a fundamental limit imposed by hydrostatic equilibrium
L. Haemmerlé, G. Meynet, L. Mayer +3
Major mergers of gas-rich galaxies provide promising conditions for the formation of supermassive black holes (SMBHs; M) by direct collapse because they can t…
Spectral properties and detectability of supermassive stars in protoglobular clusters at high redshift
F. Martins, D. Schaerer, L. Haemmerlé +1
Globular clusters contain multiple stellar populations with peculiar chemical compositions. Pollution of the intracluster gas by an early population of fast-evolving stars is the m…
Magnetic braking of supermassive stars through winds
Lionel Haemmerlé, Georges Meynet
Supermassive stars (SMSs) are candidates for being progenitors of supermassive quasars at high redshifts. However, their formation process requires strong mechanisms that would be…
Formation of massive close binaries I. Detached evolution
Mads Sørensen, Tassos Fragos, Georges Meynet +1
We explore the initial conditions that lead to detached binary evolution of massive pre-MS binaries and ask how large a fraction of the observed binary systems may have been initia…
The Evolution of Supermassive Population III Stars
Lionel Haemmerlé, Tyrone E. Woods, Ralf S. Klessen +2
Supermassive primordial stars forming in atomically-cooled halos at are currently thought to be the progenitors of the earliest quasars in the Universe. In this pictu…
Massive star formation by accretion II. Rotation: how to circumvent the angular momentum barrier?
Lionel Haemmerlé, Patrick Eggenberger, Georges Meynet +3
Rotation plays a key role in the star-formation process, from pre-stellar cores to pre-main-sequence (PMS) objects. Understanding the formation of massive stars requires taking int…
Impact of initial models and variable accretion rates on the pre-main-sequence evolution of massive and intermediate-mass stars and the early evolution of HII regions
Lionel Haemmerlé, Thomas Peters
Massive star formation requires the accretion of gas at high rate while the star is already bright. Its actual luminosity depends sensitively on the stellar structure. We compute p…
The evolution of single B-type stars with a large angular momentum content
Anahí Granada, Lionel Haemmerlé
The database of intermediate mass rotating stellar models presented in the past years by the Geneva Stellar Evolution Group can be used to build synthetic stellar populations that…
Star formation with disc accretion and rotation I. Stars between 2 and 22 Msol at solar metallicity
L. Haemmerlé, P. Eggenberger, G. Meynet +2
The way angular momentum is built up in stars during their formation process may have an impact on their further evolution. In the frame of the cold disc accretion scenario, we stu…
Models of rotating massive stars: impacts of various prescriptions
Georges Meynet, Sylvia Ekström, André Maeder +4
The rotation of stars has many interesting and important consequences for the photometric and chemical evolution of galaxies. Many of the predictions of models of stellar rotation…
Impact of rotation and disc lifetime on pre-main sequence lithium depletion of solar-type stars
P. Eggenberger, L. Haemmerlé, G. Meynet +1
Aims: We study the influence of rotation and disc lifetime on lithium depletion of pre-main sequence (PMS) solar-type stars. Methods: The impact of rotational mixing and of the hyd…