Zobrazeno 1 - 10
of 19
pro vyhledávání: '"Trevor Z. Dorn-Wallenstein"'
Publikováno v:
The Astrophysical Journal, Vol 959, Iss 2, p 102 (2023)
Characterizing the physical properties of cool supergiants allows us to probe the final stages of a massive star’s evolution before it undergoes core collapse. Despite their importance, the fundamental properties of these stars— $\mathrm{log}{T}_
Externí odkaz:
https://doaj.org/article/4581757fc59440568ae457b24f35907e
Autor:
Trevor Z. Dorn-Wallenstein, Emily M. Levesque, James R. A. Davenport, Kathryn F. Neugent, Brett M. Morris, K. Azalee Bostroem
Fast yellow pulsating supergiants (FYPS) are a recently-discovered class of evolved massive pulsator. As candidate post-red supergiant objects, and one of the few classes of pulsating evolved massive stars, these objects have incredible potential to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0b4029de31e2c9c1b9234ae3f744473f
http://arxiv.org/abs/2206.11917
http://arxiv.org/abs/2206.11917
Studies of massive stars using space photometry have revealed that they commonly exhibit stochastic low-frequency (SLF) variability. This has been interpreted as being caused by internal gravity waves (IGWs) excited at the interface of convective and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f25656b3ec5a6459778e7b63cbc796a0
Autor:
J. J. Eldridge, Philip Massey, Elizabeth R. Stanway, Emily M. Levesque, Trevor Z. Dorn-Wallenstein, Kathryn F. Neugent
Despite the many successes that modern massive star evolutionary theory has enjoyed, reproducing the apparent trend in the relative number of red supergiants (RSGs) and Wolf-Rayet (WR) stars has remained elusive. Previous estimates show the RSG/WR ra
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e601a999310025d71b0e3d6fb9fce1d3
Autor:
Keyan Gootkin, Brett M. Morris, Trevor Z. Dorn-Wallenstein, James R. A. Davenport, Kathryn F. Neugent, Emily M. Levesque
Massive stars briefly pass through the yellow supergiant (YSG) phase as they evolve redward across the HR diagram and expand into red supergiants (RSGs). Higher-mass stars pass through the YSG phase again as they evolve blueward after experiencing si
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::30184ded12abfe4e78e5976e0566d679
http://arxiv.org/abs/2008.11723
http://arxiv.org/abs/2008.11723
We present the first results from a study of TESS Sector 1 and 2 light curves for eight evolved massive stars in the LMC: six yellow supergiants (YSGs) and two luminous blue variables (LBVs), including S Doradus. We use an iterative prewhitening proc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7f094ebcc5a1224ecec38e5204c518f6
http://arxiv.org/abs/1901.09930
http://arxiv.org/abs/1901.09930
Publikováno v:
The Astrophysical Journal. 913:32
In the coming years, next-generation space-based infrared observatories will significantly increase our samples of rare massive stars, representing a tremendous opportunity to leverage modern statistical tools and methods to test massive stellar evol
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1d90f75155b633385419a339f3de7621
https://doi.org/10.3847/1538-4357/abf1f2
https://doi.org/10.3847/1538-4357/abf1f2
Autor:
Brian Babler, Marilyn R. Meade, Keyan Gootkin, Kenneth H. Nordsieck, Jennifer L. Hoffman, Emily M. Levesque, Gwendolyn Eadie, John P. Wisniewski, Trevor Z. Dorn-Wallenstein, Jamie R. Lomax
Publikováno v:
The Astrophysical Journal. 900:162
We report on over 13 years of optical and near-ultraviolet spectropolarimetric observations of the famous Luminous Blue Variable (LBV), P Cygni. LBVs are a critical transitional phase in the lives of the most massive stars, and achieve the largest ma
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b3f5e5b2948253dddb2a116782a3835b
https://doi.org/10.3847/1538-4357/abad32
https://doi.org/10.3847/1538-4357/abad32
Publikováno v:
The Astrophysical Journal. 896:164
Both rotation and interactions with binary companions can significantly affect massive star evolution, altering interior and surface abundances, mass loss rates and mechanisms, observed temperatures and luminosities, and their ultimate core-collapse
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::14de7f3f109ca81d926d23d6794889c1
https://doi.org/10.3847/1538-4357/ab8d28
https://doi.org/10.3847/1538-4357/ab8d28
We have obtained near-simultaneous Swift/XRT imaging and Gemini GMOS spectroscopy for the ultraluminous X-ray source (ULX) NGC~300 ULX-1 (formerly designated SN~2010da). The observed X-ray emission is consistent with an inhomogeneous wind that partia
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::872c82e90884d9ad281bf324b0f4ea67
http://arxiv.org/abs/1807.05309
http://arxiv.org/abs/1807.05309