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Related papers: Intermediate-Mass Stripped Stars in the Magellanic…

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Most massive stars will interact with a binary companion during their lifetimes. These interactions can remove the hydrogen-rich envelope, producing intermediate-mass ($\sim$2-8 M$_\odot$) and helium-rich stars. These "stripped stars" are…

Solar and Stellar Astrophysics · Physics 2025-05-27 Bethany Ludwig , Maria R. Drout , Ylva Gotberg , Dustin Lang , Alex Laroche

On the route towards merging neutron stars and stripped-envelope supernovae, binary population synthesis predicts a large number of post-interaction systems with massive stars that have stripped off their outer layers. Yet, observations of…

Massive stars (~8-25Msun) stripped of their hydrogen-rich envelopes via binary interaction are thought to be the main progenitors for merging neutron stars and stripped-envelope supernovae. We recently presented the discovery of the first…

Solar and Stellar Astrophysics · Physics 2023-07-04 Y. Gotberg , M. R. Drout , A. P. Ji , J. H. Groh , B. A. Ludwig , P. A. Crowther , N. Smith , A. de Koter , S. E. de Mink

Detailed studies of intermediate/low mass pre-main sequence (PMS) stars outside the Galaxy have so far been conducted only for small targeted regions harbouring known star formation complexes. The VISTA Survey of the Magellanic Clouds (VMC)…

Stars stripped of their envelope through interaction in a binary are generally not considered when accounting for ionizing radiation from stellar populations, despite the expectation that stripped stars emit hard ionizing radiation, form…

Solar and Stellar Astrophysics · Physics 2018-07-18 Y. Götberg , S. E. de Mink , J. H. Groh , T. Kupfer , P. A. Crowther , E. Zapartas , M. Renzo

We present the first results from the Swift Ultraviolet Survey of the Magellanic Clouds (SUMaC), the highest resolution ultraviolet (UV) survey of the Magellanic Clouds yet completed. In this paper, we focus on the Small Magellanic Cloud…

Astrophysics of Galaxies · Physics 2017-04-19 Lea M. Z. Hagen , Michael H. Siegel , Erik A. Hoversten , Caryl Gronwall , Stefan Immler , Alex Hagen

We report the first search for new star clusters performed using the VISTA near-infrared YJKs Magellanic Clouds survey (VMC) data sets. We chose a pilot field of ~ 0.4 deg^2 located in the South-West of the Small Magelllanic Cloud (SMC)…

We use a new contiguous imaging survey conducted using the Dark Energy Camera to investigate the distribution and properties of young stellar populations in the Magellanic inter-Cloud region. These young stars are strongly spatially…

Astrophysics of Galaxies · Physics 2017-10-11 A. D. Mackey , S. E. Koposov , G. S. Da Costa , V. Belokurov , D. Erkal , F. Fraternali , N. M. McClure-Griffiths , M. Fraser

We study the luminosity function of intermediate-age red-clump stars using deep, near-infrared photometric data covering $\sim$ 20 deg$^2$ located throughout the central part of the Small Magellanic Cloud (SMC), comprising the main body and…

We present the results of our ongoing investigation into the properties of hot stars and young stellar populations using the Swift/UVOT telescope. We present UVOT photometry of open and globular clusters and show that UVOT is capable of…

Astrophysics of Galaxies · Physics 2015-04-10 Michael H. Siegel , Caryl A. Gronwall , Lea M. Z. Hagen , Erik A. Hoversten

A mosaic of four UIT far-UV (FUV; 1620A) images, which covers most of the SMC bar, is presented, with derived stellar and HII region photometry. The UV morphology of the Bar shows that recent star formation there has left striking features…

We present an analysis of the deepest pure-UV observations with the highest angular resolution ever performed, a set of 12 exposures with the HST WFPC2 and F160BW filter obtained in parallel observing mode, which cover $\sim$12 square…

Astrophysics · Physics 2009-10-30 Noah Brosch , Michael Shara , John MacKenty , David Zurek , Brian McLean

Stars stripped of their hydrogen-rich envelopes through binary interaction are thought to be responsible for both hydrogen-poor supernovae and the hard ionizing radiation observed in low-$Z$ galaxies. A population of these stars was…

Solar and Stellar Astrophysics · Physics 2025-05-28 B. Hovis-Afflerbach , Y. Götberg , A. Schootemeijer , J. Klencki , A. L. Strom , B. A. Ludwig , M. R. Drout

[Abridged] The stellar Initial Mass Function (IMF) suggests that sub-solar stars form in very large numbers. Most attractive places for catching low-mass star formation in the act are young stellar clusters and associations, still…

Solar and Stellar Astrophysics · Physics 2012-07-10 Dimitrios Gouliermis

Split main-sequences (MSs) and extended main-sequence turn-offs (eMSTOs) have been observed in nearly all Magellanic Clouds clusters younger than 2 Gyr. More recently, Hubble Space Telescope (HST) ultraviolet photometry uncovered a puzzling…

Solar and Stellar Astrophysics · Physics 2025-06-27 G. Cordoni , A. P. Milone , L. Casagrande , L. Venuti , E. P. Lagioia , F. Muratore , A. F. Marino , G. S. Da Costa , F. Dell'Agli , F. D'Antona

The origin of the gas in between the Magellanic Clouds (MCs) -- known as the `Magellanic Bridge' (MB) -- is puzzling. Numerical simulations suggest that the MB formed from tidally stripped gas and stars in a recent interaction between the…

Astrophysics of Galaxies · Physics 2015-06-15 Noelia E. D. Noel , Blair C. Conn , Ricardo Carrera , Justin I. Read , Hans-Walter Rix , Andrew Dolphin

Massive stars that become stripped of their hydrogen envelope through binary interaction or winds can be observed either as Wolf-Rayet stars, if they have optically thick winds, or as transparent-wind stripped-envelope stars. We approximate…

The Galaxy Evolution Exporer (GALEX) has performed unprecedented imaging surveys of the Magellanic Clouds (MC) and their surrounding areas including the Magellanic Bridge (MB) in near-UV (NUV, 1771-2831\AA) and far-UV (FUV, 1344-1786\AA)…

Astrophysics of Galaxies · Physics 2014-01-29 Raymond Simons , David Thilker , Luciana Bianchi , Ted Wyder

The theory of binary evolution predicts that many massive stars should lose their hydrogen-rich envelopes via interaction with a companion -- revealing hot helium stars with masses of $\sim$2--8M$_{\odot}$. However, only one candidate…

Solar and Stellar Astrophysics · Physics 2023-07-04 M. R. Drout , Y. Götberg , B. A. Ludwig , J. H. Groh , S. E. de Mink , A. J. G. O'Grady , N. Smith

Stripped stars are a common product of binary stellar systems and span a wide mass range from Wolf-Rayet stars to hot subdwarfs and helium white dwarfs. The recent discovery of intermediate-mass stripped stars, with masses between those of…

Solar and Stellar Astrophysics · Physics 2026-05-25 Annachiara Picco , Pablo Marchant , Daniel Pauli , Hugues Sana
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