Results 41 to 50 of about 91,576 (294)

Evolution of Massive Protostars via Disk Accretion

, 2010
Mass accretion onto (proto-)stars at high accretion rates > 10^-4 M_sun/yr is expected in massive star formation. We study the evolution of massive protostars at such high rates by numerically solving the stellar structure equations.
Bodenheimer, Bontemps, Cesaroni, Cox, Furuya, Harold W. Yorke, Hartmann, Hosokawa, Hosokawa, Hosokawa, Kazuyuki Omukai, Kippenhahn, Krumholz, Larson, McKee, Neo, Norberg, Omukai, Omukai, Schaller, Sridharan, Takashi Hosokawa, Tan, Walmsley, Wang, Yorke, Yorke, Zhang   +27 more
core   +1 more source

Mapping the evolution of mitochondrial complex I through structural variation

FEBS Letters, EarlyView.
Respiratory complex I (CI) is crucial for bioenergetic metabolism in many prokaryotes and eukaryotes. It is composed of a conserved set of core subunits and additional accessory subunits that vary depending on the organism. Here, we categorize CI subunits from available structures to map the evolution of CI across eukaryotes. Respiratory complex I (CI)
Dong‐Woo Shin, Tingting Chen, James A. Letts   +2 more
wiley   +1 more source

Reciprocal control of viral infection and phosphoinositide dynamics

FEBS Letters, EarlyView.
Phosphoinositides, although scarce, regulate key cellular processes, including membrane dynamics and signaling. Viruses exploit these lipids to support their entry, replication, assembly, and egress. The central role of phosphoinositides in infection highlights phosphoinositide metabolism as a promising antiviral target.
Marie Déborah Bancilhon, Bruno Mesmin
wiley   +1 more source

Constraining the Milky Way Halo Accretion History with Simulated Stellar Halos: Designing the HALO7D-X Survey

The Astrophysical Journal
We present the design for HALO7D-X, a survey of the stellar halo to investigate the accretion history of the Milky Way. The survey will use a combination of Hubble Space Telescope (HST) and Gaia data for sky position and proper motions of faint stars (18 
Miranda Apfel, Kevin McKinnon, Constance M. Rockosi, Puragra Guhathakurta, Kathryn V. Johnston   +4 more
doaj   +1 more source

The Formation of Massive Stars through Stellar Collisions [PDF]

, 2001
In this review, I present the case for how massive stars may form through stellar collisions. This mechanism requires very high stellar densities, up to 4 orders of magnitude higher than are observed in the cores of dense young clusters.
Bonnell, Ian A.
core   +1 more source

Searching for coherent pulsations in ultraluminous X-ray sources [PDF]

, 2014
Luminosities of ultraluminous X-ray sources (ULXs) are uncomfortably large if compared to the Eddington limit for isotropic accretion onto stellar-mass object.
Doroshenko, V., Ducci, L., Santangelo, A.   +2 more
core   +1 more source

Spatiotemporal and quantitative analyses of phosphoinositides – fluorescent probe—and mass spectrometry‐based approaches

FEBS Letters, EarlyView.
Fluorescent probes allow dynamic visualization of phosphoinositides in living cells (left), whereas mass spectrometry provides high‐sensitivity, isomer‐resolved quantitation (right). Their synergistic use captures complementary aspects of lipid signaling. This review illustrates how these approaches reveal the spatiotemporal regulation and quantitative
Hiroaki Kajiho, Shin Morioka, Junko Sasaki, Takehiko Sasaki   +3 more
wiley   +1 more source

Enhanced accretion rates of stars on Super-massive Black Holes by star-disk interactions in galactic nuclei

, 2012
We investigate the dynamical interaction of a central star cluster surrounding a super-massive black hole and a central accretion disk. The dissipative force acting on stars in the disk leads to an enhanced mass flow towards the super-massive black hole ...
Andreas Just, Baruteau, Begelman, Binney, Bisnovatyi-Kogan, Bisnovatyi-Kogan, Callegari, Callegari, Chingis Omarov, Denis Yurin, Emmanuil Y. Vilkoviskij, Frank, Gillessen, Gültekin, Kasen, Langbein, Li, Maxim Makukov, Miralda-Escudé, Murphy, Novikov, Ostriker, Park, Peter Berczik, Rainer Spurzem, Rauch, Rauch, Shakura, Spitzer, Syer, Vilkoviskij, Vilkoviskij, Vilkoviskij, Šubr   +33 more
core   +1 more source

Mapping accretion and its variability in the young open cluster NGC 2264: a study based on u-band photometry [PDF]

, 2014
We aim at characterizing the accretion properties of several hundred members of the star-forming cluster NGC 2264 (3 Myr). We performed a deep u,g,r,i mapping and a simultaneous u+r monitoring of the region with CFHT/MegaCam in order to directly probe ...
Alencar, Silvia H. P., Bouvier, Jérôme, Cody, Ann Marie, Cuillandre, Jean-Charles, Flaccomio, Ettore, Irwin, Jonathan, Micela, Giuseppina, Peres, Giovanni, Sousa, Alana P., Stauffer, John R., Teixeira, Paula S., Venuti, Laura   +11 more
core   +4 more sources

Magnetospheric Accretion and PMS Stellar Masses

, 1998
Accepted by MNRAS.
Bonnell, Ian A., Smith, Kester W., Meyer, Michael R., Tout, Christopher A., Folha, Daniel F. M., Emerson, James P.   +5 more
openaire   +2 more sources