Publications


BONNSAI: correlated stellar observables in Bayesian methods

ASTRONOMY & ASTROPHYSICS 598 (2017) ARTN A60

FRN Schneider, N Castro, L Fossati, N Langer, A de Koter


Subdwarf B stars from the common envelope ejection channel

ASTRONOMY & ASTROPHYSICS 599 (2017) ARTN A54

H Xiong, X Chen, P Podsiadlowski, Y Li, Z Han


B field in OB stars (BOB): The outstandingly strong magnetic field in the evolved He-strong star CPD-62 degrees 2124

ASTRONOMY & ASTROPHYSICS 597 (2017) ARTN L6

N Castro, L Fossati, S Hubrig, SP Jaervinen, N Przybilla, M-F Nieva, I Ilyin, TA Carroll, M Schoeller, N Langer, FRN Schneider, S Simon-Diaz, T Morel, K Butler, BOB Collaboration


Light-curve and spectral properties of ultrastripped core-collapse supernovae leading to binary neutron stars

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 466 (2017) 2085-2098

TJ Moriya, PA Mazzali, N Tominaga, S Hachinger, SI Blinnikov, TM Tauris, K Takahashi, M Tanaka, N Langer, P Podsiadlowski


The R136 star cluster dissected with Hubble Space Telescope/STIS. I. Far-ultraviolet spectroscopic census and the origin of He II lambda 1640 in young star clusters

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 458 (2016) 624-659

PA Crowther, SM Caballero-Nieves, KA Bostroem, J Maiz Apellaniz, FRN Schneider, NR Walborn, CR Angus, I Brott, A Bonanos, A de Koter, SE de Mink, CJ Evans, G Grafener, A Herrero, ID Howarth, N Langer, DJ Lennon, J Puls, H Sana, JS Vink


The violent white dwarf merger scenario for the progenitors of Type Ia supernovae

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 461 (2016) 3653-3662

D-D Liu, B Wang, P Podsiadlowski, Z Han


B fields in OB stars (BOB): Detection of a magnetic field in the He-strong star CPD-57 degrees 3509

ASTRONOMY & ASTROPHYSICS 587 (2016) ARTN A7

N Przybilla, L Fossati, S Hubrig, M-F Nieva, SP Jaervinen, N Castro, M Schoeller, I Ilyin, K Butler, FRN Schneider, LM Oskinova, T Morel, N Langer, A de Koter, BOB Collaboratio


Common-envelope ejection in massive binary stars Implications for the progenitors of GW150914 and GW151226

ASTRONOMY & ASTROPHYSICS 596 (2016) ARTN A58

MU Kruckow, TM Tauris, N Langer, D Szecsi, P Marchant, P Podsiadlowski


Modelling the circumstellar medium in RS Ophiuchi and its link to Type Ia supernovae

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 457 (2016) 822-835

RA Booth, S Mohamed, P Podsiadlowski


A new route towards merging massive black holes

ASTRONOMY & ASTROPHYSICS 588 (2016) ARTN A50

P Marchant, N Langer, P Podsiadlowski, TM Tauris, TJ Moriya


Confronting uncertainties in stellar physics II. Exploring differences in main-sequence stellar evolution tracks

ASTRONOMY & ASTROPHYSICS 586 (2016) ARTN A119

RJ Stancliffe, L Fossati, J-C Passy, FRN Schneider


Evidence of magnetic field decay in massive main-sequence stars

ASTRONOMY & ASTROPHYSICS 592 (2016) ARTN A84

L Fossati, FRN Schneider, N Castro, N Langer, S Simon-Diaz, A Mueller, A de Koter, T Morel, V Petit, H Sana, GA Wade


EVOLUTION OF INTERMEDIATE- MASS X-RAY BINARIES DRIVEN BY THE. MAGNETIC BRAKING OF AP/BP STARS. I. ULTRACOMPACT X-RAY BINARIES

ASTROPHYSICAL JOURNAL 830 (2016) ARTN 131

W-C Chen, P Podsiadlowski


Rejuvenation of stellar mergers and the origin of magnetic fields in massive stars

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 457 (2016) 2355-2365

FRN Schneider, P Podsiadlowski, N Langer, N Castro, L Fossati


The VLT-FLAMES Tarantula survey XX. The nature of the X-ray bright emission-line star VFTS 399

ASTRONOMY & ASTROPHYSICS 579 (2015) ARTN A131

JS Clark, ES Bartlett, PS Broos, LK Townsley, WD Taylor, NR Walborn, AJ Bird, H Sana, SE de Mink, PL Dufton, CJ Evans, N Langer, J Maiz Apellaniz, FRN Schneider, I Soszynski


3D MODELS OF SYMBIOTIC BINARIES

PHYSICS OF EVOLVED STARS: A CONFERENCE DEDICATED TO THE MEMORY OF OLIVIER CHESNEAU 71-72 (2015) 81-86

S Mohamed, R Booth, P Podsiadlowski, S Ramstedt, W Vlemmings, M Maercker, T Lanz


B fields in OB stars (BOB) Detection of a strong magnetic field in the O9.7 V star HD 54879

ASTRONOMY & ASTROPHYSICS 581 (2015) ARTN A81

N Castro, L Fossati, S Hubrig, S Simon-Diaz, M Schoeller, I Ilyin, TA Carrol, N Langer, T Morel, FRN Schneider, N Przybilla, A Herrero, A de Koter, LM Oskinova, A Reisenegger, H Sana, BOB Collaboration


The occurrence of classical Cepheids in binary systems

Astronomy and Astrophysics 574 (2015)

HR Neilson, FRN Schneider, RG Izzard, NR Evans, N Langer

© ESO 2015. Classical Cepheids, like binary stars, are laboratories for stellar evolution and Cepheids in binary systems are especially powerful ones. About one-third of Galactic Cepheids are known to have companions and Cepheids in eclipsing binary systems have recently been discovered in the Large Magellanic Cloud (LMC). However, there are no known Galactic binary Cepheids with orbital periods less than one year. We compute population synthesis models of binary Cepheids to compare to the observed period and eccentricity distributions of Galactic Cepheids as well as to the number of observed eclipsing binary Cepheids in the LMC. We find that our population synthesis models are consistent with observed binary properties of Cepheids. Furthermore, we show that binary interaction on the red giant branch prevents some red giant stars from becoming classical Cepheids. Such interactions suggest that the binary fraction of Cepheids should be significantly less than that of their main-sequence progenitors, and that almost all binary Cepheids have orbital periods longer than one year. If the Galactic Cepheid spectroscopic binary fraction is about 35%, then the spectroscopic binary fraction of their intermediate mass main sequence progenitors is about 40- 45%.


The evolution of rotating very massive stars with LMC composition

ASTRONOMY & ASTROPHYSICS 573 (2015) ARTN A71

K Koehler, N Langer, A de Koter, SE de Mink, PA Crowther, CJ Evans, G Graefener, H Sana, D Sanyal, FRN Schneider, JS Vink


EVOLUTION OF MASS FUNCTIONS OF COEVAL STARS THROUGH WIND-MASS LOSS AND BINARY INTERACTIONS

ASTROPHYSICAL JOURNAL 805 (2015) ARTN 20

FRN Schneider, RG Izzard, N Langer, SE de Mink

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