Search Results - "Townsley, Leisa"

T-ReX: The Tarantula—Revealed by X-Rays by Townsley, Leisa K., Broos, Patrick S., Povich, Matthew S.

“…Abstract The Tarantula Nebula (30 Doradus, 30 Dor) is the most important star-forming complex in the Local Group, offering a microscope on starburst…”
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AGE GRADIENTS IN THE STELLAR POPULATIONS OF MASSIVE STAR FORMING REGIONS BASED ON A NEW STELLAR CHRONOMETER by Getman, Konstantin V, Feigelson, Eric D, Kuhn, Michael A, Broos, Patrick S, Townsley, Leisa K, Naylor, Tim, Povich, Matthew S, Luhman, Kevin L, Garmire, Gordon P

“…A major impediment to understanding star formation in massive star-forming regions (MSFRs) is the absence of a reliable stellar chronometer to unravel their…”
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Innovations in the Analysis of Chandra-ACIS Observations by Broos, Patrick S, Townsley, Leisa K, Feigelson, Eric D, Getman, Konstantin V, Bauer, Franz E, Garmire, Gordon P

“…As members of the instrument team for the Advanced CCD Imaging Spectrometer (ACIS) on NASA's Chandra X-ray Observatory and as Chandra General Observers, we…”
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RAPID CIRCUMSTELLAR DISK EVOLUTION AND AN ACCELERATING STAR FORMATION RATE IN THE INFRARED DARK CLOUD M17 SWex by Povich, Matthew S., Townsley, Leisa K., Robitaille, Thomas P., Broos, Patrick S., Orbin, Wesley T., King, Robert R., Naylor, Tim, Whitney, Barbara A.

“…ABSTRACT We present a catalog of 840 X-ray sources and first results from a 100 ks Chandra X-ray Observatory imaging study of the filamentary infrared (IR)…”
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X-ray properties of early-type stars in the Tarantula Nebula from T-ReX by Crowther, Paul A, Broos, Patrick S, Townsley, Leisa K, Pollock, Andy M T, Tehrani, Katie A, Gagné, Marc

“…ABSTRACT We reassess the historical LX/LBol relation for early-type stars from a comparison between T-ReX, the Chandra ACIS X-ray survey of the Tarantula…”
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Melnick 33Na: a very massive colliding-wind binary system in 30 Doradus by Bestenlehner, Joachim M, Crowther, Paul A, Broos, Patrick S, Pollock, Andrew M T, Townsley, Leisa K

“…ABSTRACT We present spectroscopic analysis of the luminous X-ray source Melnick 33Na (Mk 33Na, HSH95 16) in the Large Magellanic Cloud (LMC) 30 Doradus region…”
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The 155-day X-ray cycle of the very massive Wolf–Rayet star Melnick 34 in the Large Magellanic Cloud by Pollock, A M T, Crowther, P A, Tehrani, K, Broos, Patrick S, Townsley, Leisa K

“…AbstractThe 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…”
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Candidate X-Ray-emitting OB Stars in MYStIX Massive Star-forming Regions by Povich, Matthew S., Busk, Heather A., Feigelson, Eric D., Townsley, Leisa K., Kuhn, Michael A.

“…Massive O-type and early B-type (OB) stars in the nearby Galaxy remain incompletely cataloged due to high extinction, bright visible and infrared nebular…”
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Stellar feedback and triggered star formation in the prototypical bubble RCW 120 by 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

“…Radiative and mechanical feedback of massive stars regulates star formation and galaxy evolution. Positive feedback triggers the creation of new stars by…”
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The Diverse Stellar Populations of the W3 Star-forming Complex by Feigelson, Eric D, Townsley, Leisa K

“…An similar to 800 arcmin super(2) mosaic image of the W3 star-forming complex obtained with the Chandra X-Ray Observatory gives a valuable new view of the…”
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A Chandra Study of the Rosette Star-forming Complex. I. The Stellar Population and Structure of the Young Open Cluster NGC 2244 by Wang, Junfeng, Townsley, Leisa K, Feigelson, Eric D, Broos, Patrick S, Getman, Konstantin V, Román-Zúñiga, Carlos G, Lada, Elizabeth

“…We present the first high spatial resolution X-ray study of NGC 2244, the 2 Myr old stellar cluster in the Rosette Nebula, using Chandra. Over 900 X-ray…”
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10 MK Gas in M17 and the Rosette Nebula: X-Ray Flows in Galactic H II Regions by Townsley, Leisa K, Feigelson, Eric D, Montmerle, Thierry, Broos, Patrick S, Chu, You-Hua, Garmire, Gordon P

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A Chandra Study of the Rosette Star-Forming Complex. II. Clusters in the Rosette Molecular Cloud by Wang, Junfeng, Feigelson, Eric D, Townsley, Leisa K, Román-Zúñiga, Carlos G, Lada, Elizabeth, Garmire, Gordon

“…We explore here the young stellar populations in the Rosette Molecular Cloud (RMC) region with high spatial resolution X-ray images from the Chandra X-ray…”
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Detection of Nuclear X-Ray Sources in Nearby Galaxies with Chandra by Ho, Luis C, Feigelson, Eric D, Townsley, Leisa K, Sambruna, Rita M, Garmire, Gordon P, Brandt, W. N, Filippenko, Alexei V, Griffiths, Richard E, Ptak, Andrew F, Sargent, Wallace L. W

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A Chandra Study of the Rosette Star-forming Complex. III. The NGC 2237 Cluster and the Region's Star Formation History by Wang, Junfeng, Feigelson, Eric D, Townsley, Leisa K, Broos, Patrick S, Román-Zúñiga, Carlos G, Lada, Elizabeth, Garmire, Gordon

“…We present high spatial resolution Chandra X-ray images of the NGC 2237 young stellar cluster on the periphery of the Rosette Nebula. We detect 168 X-ray…”
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Methods for Estimating Fluxes and Absorptions of Faint X-ray Sources by Getman, Konstantin V, Feigelson, Eric D, Broos, Patrick S, Townsley, Leisa K, Garmire, Gordon P

“…X-ray sources with very few counts can be identified with low-noise X-ray detectors such as the Advanced CCD Imaging Spectrometer on board the Chandra X-ray…”
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Astronomy. Orion continues to surprise by O'Dell, C R, Townsley, Leisa K

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Diffuse X-Ray Emission from the Quiescent Superbubble M17, the Omega Nebula by Dunne, Bryan C, Chu, You-Hua, Chen, C.-H. Rosie, Lowry, Justin D, Townsley, Leisa, Gruendl, Robert A, Guerrero, Martín A, Rosado, Margarita

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X-Ray-emitting Young Stars in the Orion Nebula by Feigelson, Eric D, Broos, Patrick, Gaffney III, James A, Garmire, Gordon, Hillenbrand, Lynne A, Pravdo, Steven H, Townsley, Leisa, Tsuboi, Yohko

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Orion Continues to Surprise by O'Dell, C. R., Townsley, Leisa K.

“…Observations of a nearby nebula reveal an unusual region of extremely hot gas whose high temperature is the result of wind from massive stars…”
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