Physical properties of Wolf-Rayet stars

PA Crowther - Annu. Rev. Astron. Astrophys., 2007 - annualreviews.org
The striking broad emission line spectroscopic appearance of Wolf-Rayet (WR) stars has
long defied analysis, owing to the extreme physical conditions within their line-and …

The VIIth catalogue of galactic Wolf–Rayet stars

KA Van Der Hucht - New Astronomy Reviews, 2001 - Elsevier
The VIIth catalogue of galactic PopulationI Wolf–Rayet stars provides improved coordinates,
spectral types and bv photometry of known WR stars and adds 71 new WR stars to the …

parsec evolutionary tracks of massive stars up to 350 M at metallicities 0.0001 ≤ Z ≤ 0.04

Y Chen, A Bressan, L Girardi, P Marigo… - Monthly Notices of …, 2015 - academic.oup.com
We complement the parsec data base of stellar evolutionary tracks with new models of
massive stars, from the pre-main-sequence phase to the central carbon ignition. We …

Stellar spectral classification

RO Gray - 2021 - torrossa.com
Stellar spectral classification has played a seminal role in the development of modern
astronomy. A perusal of this book will show that it continues to be at the forefront of many …

The Galactic WC stars-Stellar parameters from spectral analyses indicate a new evolutionary sequence

A Sander, WR Hamann, H Todt - Astronomy & Astrophysics, 2012 - aanda.org
Context. The life cycles of massive stars from the main sequence to their explosion as
supernovae or gamma ray bursts are not yet fully clear, and the empirical results from …

The origin and shaping of planetary nebulae: putting the binary hypothesis to the test

O De Marco - Publications of the Astronomical Society of the …, 2009 - iopscience.iop.org
Planetary nebulae (PNs) are circumstellar gas ejected during an intense mass-losing phase
in the lives of asymptotic giant branch stars. PNs have a stunning variety of shapes, most of …

The elemental abundances in bare planetary nebula central stars and the shell burning in AGB stars

K Werner, F Herwig - Publications of the Astronomical Society of …, 2006 - iopscience.iop.org
We review the observed properties of extremely hot, hydrogen‐deficient post–asymptotic
giant branch (AGB) stars of spectral type [WC] and PG1159. Their H deficiency is probably …

Fundamental properties of core-collapse supernova and GRB progenitors: predicting the look of massive stars before death

JH Groh, G Meynet, C Georgy, S Ekström - Astronomy & Astrophysics, 2013 - aanda.org
We investigate the fundamental properties of core-collapse supernova (SN) progenitors from
single stars at solar metallicity. For this purpose, we combine Geneva stellar evolutionary …

NGC 6153: a super-metal-rich planetary nebula?

XW Liu, PJ Storey, MJ Barlow… - Monthly Notices of …, 2000 - academic.oup.com
We have obtained deep optical spectra of the planetary nebula NGC 6153, both along its
minor axis and by uniformly scanning a long slit across the whole nebula. The scanned …

Mass, linear momentum and kinetic energy of bipolar flows in protoplanetary nebulae

V Bujarrabal, A Castro-Carrizo, J Alcolea… - Astronomy & …, 2001 - aanda.org
We have studied the CO emission from protoplanetary nebulae (PPNe). Our sample is
composed of 37 objects and includes, we think, all well identified PPNe detected in CO …