Results 21 to 30 of about 720,446 (211)
New Galactic Wolf-Rayet stars, and candidates (Research note): An annex to The VIIth Catalogue of Galactic Wolf-Rayet Stars [PDF]
, 2006 This paper gathers, from the literature and private communication, 72 new Galactic Population I Wolf-Rayet stars and 17 candidate WCLd stars, recognized and/or discovered after the publication of The VIIth Catalogue of Galactic Wolf-Rayet Stars.
van der Hucht, K.A., K. A. van der Hucht
core +2 more sources
Galaxies, 2019 Several decades of observations of the most massive and most luminous stars have revealed a complex upper HR Diagram, shaped by mass loss, and inhabited by a variety of evolved stars exhibiting the consequences of their mass loss histories.
Roberta M. Humphreys
doaj +1 more source
The evolution of massive binary systems [PDF]
Serbian Astronomical Journal, 2020 The evolution of massive stars in close binary systems is significantly different from single star evolution due to a series of interactions between the two stellar components.
Petrović Jelena
doaj +1 more source
UV Spectroscopy of Massive Stars
Galaxies, 2020 We present a review of UV observations of massive stars and their analysis. We discuss O stars, luminous blue variables, and Wolf–Rayet stars. Because of their effective temperature, the UV (912−3200 Å) provides invaluable diagnostics not available at ...
D. John Hillier
doaj +1 more source
Resolving stellar populations with integral field spectroscopy
Astronomische Nachrichten, Volume 340, Issue 9-10, Page 989-995, November‐December 2019., 2019 Abstract High‐performance instruments at large ground‐based telescopes have made integral field spectroscopy (IFS) a powerful tool for the study of extended objects such as galaxies, nebulae, or even larger survey fields on the sky. Here, we discuss the capabilities of IFS for the study of resolved stellar populations, using the new method of point ...
Martin M. Roth +2 more
wiley +1 more source
The Observer’s Guide to the Gamma‐Ray Burst Supernova Connection
Advances in Astronomy, Volume 2017, Issue 1, 2017., 2017 We present a detailed report of the connection between long‐duration gamma‐ray bursts (GRBs) and their accompanying supernovae (SNe). The discussion presented here places emphasis on how observations, and the modelling of observations, have constrained what we know about GRB‐SNe.
Zach Cano +4 more
wiley +1 more source
Clumping in the Winds of Wolf–Rayet Stars [PDF]
The Astrophysical Journal, 2020 Abstract We attempt to determine the driver for clumping in hot-star winds by extending the measure of the spectral variability level of Galactic Wolf–Rayet stars to by far the hottest known among them, the WN2 star WR 2 and the WO2 stars WR 102 and WR 142. These three stars have T ⋆ = 140 and 200 kK, the last two being
André-Nicolas Chené +3 more
openaire +2 more sources
Imaging FTS: A Different Approach to Integral Field Spectroscopy
Advances in Astronomy, Volume 2014, Issue 1, 2014., 2014 Imaging Fourier transform spectroscopy (iFTS) is a promising, although technically very challenging, option for wide‐field hyperspectral imagery. We present in this paper an introduction to the iFTS concept and its advantages and drawbacks, as well as examples of data obtained with a prototype iFTS, SpIOMM, attached to the 1.6 m telescope of the ...
Laurent Drissen +8 more
wiley +1 more source
Models of Rotating Wolf-Rayet Stars [PDF]
Symposium - International Astronomical Union, 1995 We explore the influence of rotation on the evolution of massive stars (40 M⊙). We find the evolution in the HRD, the initial-final mass relation, and the duration of the various WR phases to depend sensitively on the initial rotation rate. We predict that, independent of the initial rotation rate, the majority of WR stars should be slow rotators.
J. Fliegner, N. Langer
openaire +1 more source
Intermediate Mass Black Holes: Their Motion and Associated Energetics
Advances in High Energy Physics, Volume 2014, Issue 1, 2014., 2014 There is a lot of current astrophysical evidence and interest in intermediate mass black holes (IMBH), ranging from a few hundred to several thousand solar masses. The active galaxy M82 and the globular cluster G1 in M31, for example, are known to host such objects.
C. Sivaram, Kenath Arun, Christian Corda
wiley +1 more source