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pro vyhledávání: '"Townsley, Leisa K."'
The Tarantula Nebula (30 Doradus) is the most important star-forming complex in the Local Group, offering a microscope on starburst astrophysics. At its heart lies the exceptionally rich young stellar cluster R136, containing the most massive stars k
Externí odkaz:
http://arxiv.org/abs/2403.16944
Autor:
Crowther, Paul A, Broos, Patrick S, Townsley, Leisa K, Pollock, Andy M T, Tehrani, Katie A, Gagne, Marc
We reassess the historical $L_{X}/L_{Bol}$ relation for early-type stars from a comparison between T-ReX, the Chandra ACIS X-ray survey of the Tarantula Nebula in the LMC, and contemporary spectroscopic analysis of massive stars obtained primarily fr
Externí odkaz:
http://arxiv.org/abs/2207.08836
Autor:
Bestenlehner, Joachim M., Crowther, Paul A., Broos, Patrick S., Pollock, Andrew M. T., Townsley, Leisa K.
We present spectroscopic analysis of the luminous X-ray source Melnick 33Na (Mk 33Na, HSH95 16) in the LMC 30 Doradus region (Tarantula Nebula), utilising new time-series VLT/UVES spectroscopy. We confirm Mk 33Na as a double-lined O-type spectroscopi
Externí odkaz:
http://arxiv.org/abs/2112.00022
Autor:
Luisi, Matteo, Anderson, Loren D., Schneider, Nicola, Simon, Robert, Kabanovic, Slawa, Güsten, Rolf, Zavagno, Annie, Broos, Patrick S., Buchbender, Christof, Guevara, Cristian, Jacobs, Karl, Justen, Matthias, Klein, Bernd, Linville, Dylan, Röllig, Markus, Russeil, Delphine, Stutzki, Jürgen, Tiwari, Maitraiyee, Townsley, Leisa K., Tielens, Alexander G. G. M.
Publikováno v:
Sci. Adv. 7, eabe9511 (2021)
Radiative and mechanical feedback of massive stars regulates star formation and galaxy evolution. Positive feedback triggers the creation of new stars by collecting dense shells of gas, while negative feedback disrupts star formation by shredding mol
Externí odkaz:
http://arxiv.org/abs/2104.04568
Autor:
Nuñez, Evan H., Povich, Matthew S., Binder, Breanna A., Townsley, Leisa K., Broos, Patrick S.
Publikováno v:
The Astronomical Journal, Volume 162, Issue 4, id.153, 15 pp, October 2021
We use X-ray and infrared observations to study the properties of three classes of young stars in the Carina Nebula: intermediate-mass (2--5~M$_\odot$) pre-main sequence stars (IMPS; i.e. intermediate-mass T Tauri stars), late-B and A stars on the ze
Externí odkaz:
http://arxiv.org/abs/2103.13376
We offer to the star formation community the third installment of the Massive Star-forming Regions (MSFRs) Omnibus X-ray Catalog (MOXC3), a compilation of X-ray point sources detected in 50 archival Chandra/ACIS observations of 14 Galactic MSFRs and
Externí odkaz:
http://arxiv.org/abs/1907.13126
Akademický článek
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The 155-day X-ray cycle of the very massive Wolf-Rayet star Melnick 34 in the Large Magellanic Cloud
The Wolf-Rayet star Mk 34 was observed more than 50 times as part of the deep T-ReX Chandra ACIS-I X-ray imaging survey of the Tarantula Nebula in the Large Magellanic Cloud conducted between 2014 May and 2016 January. Its brightness showed one brigh
Externí odkaz:
http://arxiv.org/abs/1803.00822
Autor:
Townsley, Leisa K., Broos, Patrick S., Garmire, Gordon P., Anderson, Gemma E., Feigelson, Eric D., Naylor, Tim, Povich, Matthew S.
We present the second installment of the Massive Star-forming Regions (MSFRs) Omnibus X-ray Catalog (MOXC2), a compilation of X-ray point sources detected in Chandra/ACIS observations of 16 Galactic MSFRs and surrounding fields. MOXC2 includes 13 ACI
Externí odkaz:
http://arxiv.org/abs/1802.04902
Autor:
Povich, Matthew S., Busk, Heather A., Feigelson, Eric D., Townsley, Leisa K., Kuhn, Michael A.
Massive, O and early B-type (OB) stars remain incompletely catalogued in the nearby Galaxy due to high extinction, bright visible and infrared nebular emission in H II regions, and high field star contamination. These difficulties are alleviated by r
Externí odkaz:
http://arxiv.org/abs/1701.06653