Results 21 to 30 of about 115,605 (291)

Rotation periods of exoplanet host stars [PDF]

, 2010
The stellar rotation periods of ten exoplanet host stars have been determined using newly analysed Ca II H & K flux records from Mount Wilson Observatory and Stromgren b, y photometric measurements from Tennessee State University's automatic photometric ...
Baliunas, Baliunas, Barnes, Benedict, Butler, Butler, C. A. Watson, Catala, Collier Cameron, Collier Cameron, Collier Cameron, Cox, Croll, Donahue, Donahue, Donati, E. K. Simpson, Fischer, Fischer, Fischer, Frick, G. W. Henry, Greaves, Greaves, Hale, Henry, Henry, Henry, Henry, Henry, Henry, Henry, Horne, Korzennik, Kozai, Lin, Lovis, Mayor, Mayor, McArthur, McLaughlin, Nagasawa, Narita, Noyes, Paulson, Prato, Queloz, Queloz, Rasio, Rossiter, S. L. Baliunas, Saar, Scargle, Shkolnik, Shkolnik, Takeda, Triaud, Udry, Valenti, Vogt, Walker, Watson, Weidenschilling, Winn, Winn, Wright, Wright, Wu   +67 more
core   +3 more sources

The evolution of single B-type stars with a large angular momentum content [PDF]

, 2014
The database of intermediate mass rotating stellar models presented in the past years by the Geneva Stellar Evolution Group can be used to build synthetic stellar populations that fully account for the effects of stellar rotation.
Granada, Anahí, Haemmerlé, Lionel
core   +1 more source

Measurement of the Angular Momenta of Pre-main-sequence Stars: Early Evolution of Slow and Fast Rotators and Empirical Constraints on Spin-down Torque Mechanisms

The Astronomical Journal, 2023
We use TESS full-frame imaging data to investigate the angular momentum evolution of young stars in the Orion Complex. We confirm recent findings that stars with rotation periods faster than 2 days are overwhelmingly binaries, with typical separations of
Marina Kounkel, Keivan G. Stassun, Lynne A. Hillenbrand, Jesús Hernández, Javier Serna, Jason Lee Curtis   +5 more
doaj   +1 more source

Effects of thermohaline instability and rotation-induced mixing on the evolution of light elements in the Galaxy : D, 3He and 4He [PDF]

, 2012
Recent studies of low- and intermediate-mass stars show that the evolution of the chemical elements in these stars is very different from that proposed by standard stellar models.
Asplund, Balser, Balser, Balser, Bania, Bennett, Boothroyd, Burles, C. Charbonnel, C. Chiappini, Charbonnel, Charbonnel, Charbonnel, Charbonnel, Charbonnel, Chiappini, Chiappini, Chiappini, Coc, Costa, Cyburt, D. Romano, Dearborn, Denissenkov, Denissenkov, Edmunds, Eggleton, Eggleton, Ekström, Epstein, F. Matteucci, Frogel, Galli, Galli, Geiss, Geiss, Geiss, Gloeckler, Grevesse, Groenewegen, Hirschi, Hirschi, Hogan, Hébrard, Hébrard, Iben, Iwamoto, Jenkins, Kobayashi, Krishnamurti, Lagarde, Larson, Linsky, M. Tosi, Maeder, Marigo, Matteucci, Meynet, N. Lagarde, Oliveira, Palla, Peebles, Pettini, Prantzos, Prodanović, Prodanović, Reeves, Rogers, Romano, Romano, Romano, Rood, Rood, Rood, Rosenblum, Serenelli, Songaila, Sonneborn, Spergel, Steigman, Steigman, Tosi, Traxler, Truran, Ulrich, Vidal-Madjar, Wagoner, Weiss, Zahn   +88 more
core   +3 more sources

Supernovae from rotating stars

, 2017
The present paper discusses the main physical effects produced by stellar rotation on presupernovae, as well as observations which confirm these effects and their consequences for presupernova models.
A Gal-Yam, A Heger, A Heger, A Maeder, A Maeder, A Maeder, A Maeder, A Stacy, AFJ Moffat, AV Filippenko, C Chiappini, C Chiappini, C Georgy, C Martayan, F Martins, G Meynet, G Meynet, G Meynet, G Meynet, G Meynet, G Piotto, H Zeipel Von, I Mandel, J-P Zahn, JH Groh, JH Groh, JH Groh, JJ Eldridge, JS Vink, MC Bersten, MR Drout, N Przybilla, N Smith, N Yusof, O Krause, P Marchant, PA Crowther, R Hirschi, R Hirschi, R Hirschi, RM Humphreys, S Ekström, S Ekström, S-C Yoon, SE Woosley, SE Woosley, SE Woosley, SJ Smartt, SJ Smartt, T Karlsson, T Moriya, T Yoshida, Y Cao   +52 more
core   +1 more source

A study of central galaxy rotation with stellar mass and environment [PDF]

, 2016
© 2017. The American Astronomical Society. All rights reserved. We present a pilot analysis of the influence of galaxy stellar mass and cluster environment on the probability of slow rotation in 22 central galaxies at mean redshift z = 0.07.
Bremer, Malcom N., Brough, Sarah, Colless, Matthew, Couch, Warrick J., Jimmy, Kafle, Prajwal R., Lara-Lopez, Maritza A., Lara-López, Maritza A., Lopez-Sanchez, Angel R., López-Sánchez, Ángel R., Miller, Christopher, Oliva-Altamirano, Paola, Phillipps, Steven, Pimbblet, Kevin, Sharp, Rob, Tran, Kim-Vy   +15 more
core   +5 more sources

3-Dimensional Core-Collapse

, 2003
In this paper, we present the results of 3-dimensional collapse simulations of rotating stars for a range of stellar progenitors. We find that for the fastest spinning stars, rotation does indeed modify the convection above the proto-neutron star, but it
Chris L. Fryer, Janka H.-Th., Michael S. Warren, Muller E., New K. C. B., Schenk A. K.   +5 more
core   +1 more source

The beta Pictoris association: Catalog of photometric rotational periods of low-mass members and candidate members [PDF]

, 2016
We intended to compile the most complete catalog of bona fide members and candidate members of the beta Pictoris association, and to measure their rotation periods and basic properties from our own observations, public archives, and exploring the ...
Artemenko, S., Buccino, A., Curtis, I., Hambsch, F. -J., Harlingten, C., Hentunen, V. -P., Jofre', E., Kehusmaa, P., Malo, L., Mauas, P., Medhi, B. J., Messina, S., Millward, M., Monard, B., Naves, R., Petrucci, R., Pi, Q., Santallo, R., Savuskin, A., Serrano, M. Muro, Tan, T. G., Zhang, L.   +21 more
core   +4 more sources

Observable Signatures of Classical T Tauri Stars Accreting in an Unstable Regime

EPJ Web of Conferences, 2014
We discuss key observational signatures of Classical T Tauri stars (CTTSs) accreting through Rayleigh-Taylor instability, which occurs at the interface between an accretion disk and a stellar magnetosphere.
Kurosawa Ryuichi, Romanova M. M.
doaj   +1 more source

The Effect of Stellar Rotation on Colour-Magnitude Diagrams: On the apparent presence of multiple populations in intermediate age stellar clusters

, 2009
A significant number of intermediate age clusters (1-2 Gyr) in the Magellanic Clouds appear to have multiple stellar populations within them, derived from bi-modal or extended main sequence turn offs. If this is interpreted as an age spread, the multiple
Bekki, Boesgaard, Cardini, Charbonnel, Collins, D'Ercole, D'Souza, De Mink, Donati, Eldridge, Faulkner, Fossati, Gaige, Glatt, Goudfrooij, Gray, Heger, Huang, Huang, Hunter, Mackey, Mackey, Massey, Mestel, Meynet, Milone, N. Bastian, Palacios, Pietrinferni, Piotto, Pérez Hernández, Royer, S. E. de Mink, Salpeter, Schatzman, Talon, Townsend, von Zeipel, Westera, Yoon   +39 more
core   +1 more source