Search Results - "Getman, Konstantin V."

X-Ray Superflares from Pre-main-sequence Stars: Flare Energetics and Frequency by Getman, Konstantin V., Feigelson, Eric D.

“…Abstract Solar-type stars exhibit their highest levels of magnetic activity during their early convective pre-main-sequence (PMS) phase of evolution. The most…”
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Magnetic Activity–Rotation–Age–Mass Relations in Late-pre-main-sequence Stars by Getman, Konstantin V., Feigelson, Eric D., Garmire, Gordon P.

“…Abstract We study the four-dimensional relationships between magnetic activity, rotation, mass, and age for solar-type stars in the age range 5–25 Myr. This is…”
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CORE-HALO AGE GRADIENTS AND STAR FORMATION IN THE ORION NEBULA AND NGC 2024 YOUNG STELLAR CLUSTERS by Getman, Konstantin V, Feigelson, Eric D, Kuhn, Michael A

“…We analyze age distributions of two nearby rich stellar clusters, the NGC 2024 (Flame Nebula) and Orion Nebula cluster (ONC) in the Orion molecular cloud…”
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X-Ray Superflares from Pre-main-sequence Stars: Flare Modeling by Getman, Konstantin V., Feigelson, Eric D., Garmire, Gordon P.

“…Abstract Getman et al. report the discovery, energetics, frequencies, and effects on environs of >1000 X-ray superflares with X-ray energies E X ∼ 10 34 –10 38…”
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THE SPATIAL STRUCTURE OF YOUNG STELLAR CLUSTERS. I. SUBCLUSTERS by Kuhn, Michael A, Feigelson, Eric D, Getman, Konstantin V, Baddeley, Adrian J, Broos, Patrick S, Sills, Alison, Bate, Matthew R, Povich, Matthew S, Luhman, Kevin L, Busk, Heather A, Naylor, Tim, King, Robert R

“…The clusters of young stars in massive star-forming regions show a wide range of sizes, morphologies, and numbers of stars. Their highly subclustered…”
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X-Ray, Near-ultraviolet, and Optical Flares Produced by Colliding Magnetospheres in the Young High-eccentricity Binary DQ Tau by Getman, Konstantin V., Kóspál, Ágnes, Arulanantham, Nicole, Semenov, Dmitry A., Smirnov-Pinchukov, Grigorii V., van Terwisga, Sierk E.

“…Abstract DQ Tau is a unique young high-eccentricity binary system that exhibits regular magnetic reconnection flares and pulsed accretion near periastron. We…”
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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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THE SPATIAL STRUCTURE OF YOUNG STELLAR CLUSTERS. III. PHYSICAL PROPERTIES AND EVOLUTIONARY STATES by Kuhn, Michael A., Feigelson, Eric D., Getman, Konstantin V., Sills, Alison, Bate, Matthew R., Borissova, Jordanka

“…ABSTRACT We analyze the physical properties of stellar clusters that are detected in massive star-forming regions in the MYStIX project-a comparative,…”
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XUE: Molecular Inventory in the Inner Region of an Extremely Irradiated Protoplanetary Disk by Ramírez-Tannus, María Claudia, Bik, Arjan, Cuijpers, Lars, Waters, Rens, Göppl, Christiane, Henning, Thomas, Kamp, Inga, Preibisch, Thomas, Getman, Konstantin V., Chaparro, Germán, Cuartas-Restrepo, Pablo, de Koter, Alex, Feigelson, Eric D., Grant, Sierra L., Haworth, Thomas J., Hernández, Sebastián, Kuhn, Michael A., Perotti, Giulia, Povich, Matthew S., Reiter, Megan, Roccatagliata, Veronica, Sabbi, Elena, Tabone, Benoît, Winter, Andrew J., McLeod, Anna F., van Boekel, Roy, van Terwisga, Sierk E.

“…Abstract We present the first results of the eXtreme UV Environments (XUE) James Webb Space Telescope (JWST) program, which focuses on the characterization of…”
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X-Ray Flares in Orion Young Stars. II. Flares, Magnetospheres, and Protoplanetary Disks by Getman, Konstantin V, Feigelson, Eric D, Micela, Giusi, Jardine, Moira M, Gregory, Scott G, Garmire, Gordon P

“…We study the properties of powerful X-ray flares from 161 pre-main- sequence (PMS) stars observed with the Chandra X-ray Observatory in the Orion Nebula…”
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Kinematics in Young Star Clusters and Associations with Gaia DR2 by Kuhn, Michael A., Hillenbrand, Lynne A., Sills, Alison, Feigelson, Eric D., Getman, Konstantin V.

“…The Gaia mission has opened a new window into the internal kinematics of young star clusters at the sub-km s−1 level, with implications for our understanding…”
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THE SPATIAL STRUCTURE OF YOUNG STELLAR CLUSTERS. II. TOTAL YOUNG STELLAR POPULATIONS by Kuhn, Michael A., Getman, Konstantin V., Feigelson, Eric D.

“…ABSTRACT We investigate the intrinsic stellar populations (estimated total numbers of OB and pre-main-sequence stars down to 0.1 ) that are present in 17…”
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Evolution of X-Ray Activity in <25 Myr Old Pre-main Sequence Stars by Getman, Konstantin V., Feigelson, Eric D., Garmire, Gordon P., Broos, Patrick S., Kuhn, Michael A., Preibisch, Thomas, Airapetian, Vladimir S.

“…Measuring the evolution of X-ray emission from pre-main-sequence (PMS) stars gives insight into two issues: the response of magnetic dynamo processes to…”
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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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The Effect of Molecular Cloud Properties on the Kinematics of Stars Formed in the Trifid Region by Kuhn, Michael A., Hillenbrand, Lynne A., Feigelson, Eric D., Fowler, Ian, Getman, Konstantin V., Broos, Patrick S., Povich, Matthew S., Gromadzki, Mariusz

“…Abstract The dynamical states of molecular clouds may affect the properties of the stars they form. In the vicinity of the Trifid Nebula ( d = 1180 ± 25 pc),…”
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X-Ray Flares in Orion Young Stars. I. Flare Characteristics by Getman, Konstantin V, Feigelson, Eric D, Broos, Patrick S, Micela, Giuseppina, Garmire, Gordon P

“…Pre-main-sequence (PMS) stars are known to produce powerful X-ray flares, which resemble magnetic reconnection solar flares scaled by factors up to 10…”
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The Elephant Trunk Nebula and the Trumpler 37 cluster: contribution of triggered star formation to the total population of an HII region by Getman, Konstantin V., Feigelson, Eric D., Sicilia-Aguilar, Aurora, Broos, Patrick S., Kuhn, Michael A., Garmire, Gordon P.

“…Abstract Rich young stellar clusters produce H ii regions whose expansion into the nearby molecular cloud is thought to trigger the formation of new stars…”
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YOUNG STELLAR POPULATIONS IN MYStIX STAR-FORMING REGIONS: CANDIDATE PROTOSTARS by Romine, Gregory, Feigelson, Eric D., Getman, Konstantin V., Kuhn, Michael A., Povich, Matthew S.

“…ABSTRACT The Massive Young Star-Forming Complex in Infrared and X-ray (MYStIX) project provides a new census on stellar members of massive star-forming regions…”
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A Chandra Observation of the Obscured Star-forming Complex W40 by Kuhn, Michael A, Getman, Konstantin V, Feigelson, Eric D, Bo Reipurth, Rodney, Steven A, Garmire, Gordon P

“…The young stellar cluster illuminating the W40 H II region, one of the nearest massive star-forming regions, has been observed with the ACIS detector on board…”
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The Elephant Trunk Nebula and the Trumpler 37 cluster: contribution of triggered star formation to the total population of an H ii region by Getman, Konstantin V., Feigelson, Eric D., Sicilia‐Aguilar, Aurora, Broos, Patrick S., Kuhn, Michael A., Garmire, Gordon P.

“…ABSTRACT Rich young stellar clusters produce H ii regions whose expansion into the nearby molecular cloud is thought to trigger the formation of new stars…”
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