Results 51 to 60 of about 170,516 (335)

Young stellar objects from soft to hard X-rays

, 2009
Magnetically active stars are the sites of efficient particle acceleration and plasma heating, processes that have been studied in detail in the solar corona.
Jéro^me Rodriguez, Manuel Güdel, Phillippe Ferrando   +2 more
core   +1 more source

HETEROGENEITY IN 12CO/13CO ABUNDANCE RATIOS TOWARD SOLAR-TYPE YOUNG STELLAR OBJECTS [PDF]

, 2015
This study reports an unusual heterogeneity in [12C16O]/[13C16O] abundance ratios of carbon monoxide observed in the gas phase toward seven ∼solar-mass young stellar objects (YSOs) and three dense foreground clouds in the nearby star-forming regions ...
Rachel L. Smith, K. Pontoppidan, E. Young, M. Morris   +3 more
semanticscholar   +1 more source

Accretion Signatures from Massive Young Stellar Objects

, 2004
High resolution (lambda / Delta-lambda = 50,000) K-band spectra of massive, embedded, young stellar objects are presented. The present sample consists of four massive young stars located in nascent clusters powering Galactic giant H II regions.
A. Damineli, C. L. Barbosa, Kessel O., Kraus M., P. S. Conti, Phillips C. J., R. D. Blum, Richling S., S. Ridgway, Smith L. F.   +9 more
core   +2 more sources

ABYSS. III. Observing Accretion Activity in Young Stars Through Empirical Veiling Measurements

The Astronomical Journal
Stellar accretion plays an important role in the early stages of stellar evolution, particularly in Classical T Tauri Stars (CTTSs). Accretion of a CTTS can be related to different physical parameters such as effective temperature ( T _eff ), age ...
Serat Saad, Marina Kounkel, Keivan G. Stassun, A. Roman-Lopes, C. Román-Zúñiga, Jinyoung Serena Kim, Jonathan C. Tan, R. López-Valdivia   +7 more
doaj   +1 more source

Infrared Search for Young Brown Dwarf Companions around Young Stellar Objects in the rho Ophiucus Molecular Cloud and the Serpens Molecular Cloud

, 2011
We conducted an infrared search for faint companions around 351 young stellar objects in the rho Ophiucus molecular cloud and the Serpens molecular cloud.
Itoh, Yoichi, Oasa, Yumiko, Shirono, Chiaki   +2 more
core   +1 more source

YSOVAR: MID-INFRARED VARIABILITY OF YOUNG STELLAR OBJECTS AND THEIR DISKS IN THE CLUSTER IRAS 20050+2720 [PDF]

, 2015
We present a time-variability study of young stellar objects (YSOs) in the cluster IRAS 20050+2720, performed at 3.6 and 4.5 μm with the Spitzer Space Telescope; this study is part of the Young Stellar Object VARiability (YSOVAR) project.
K. Poppenhaeger, A. Cody, K. Covey, H. M. Günther, L. Hillenbrand, P. Plavchan, L. Rebull, J. Stauffer, S. Wolk, C. Espaillat, J. Forbrich, R. Gutermuth, J. Hora, M. Morales-Calderón, I. Song   +14 more
semanticscholar   +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

Detection of a Deeply Embedded Protocluster Candidate in NGC 602 with JWST

The Astronomical Journal
JWST NIRCam and MIRI photometry of NGC 602, a low-metallicity young star cluster in the Small Magellanic Cloud, reveals an extended mid-infrared bright emission feature designated as MZS-1.
Beena Meena, Peter Zeidler, Elena Sabbi, Antonella Nota, Camilla Pacifici, Olivia C. Jones   +5 more
doaj   +1 more source

Massive Star Formation in the Tarantula Nebula

The Astrophysical Journal, 2023
In this work, we present 299 candidate young stellar objects (YSOs) in 30 Doradus discovered using Spitzer and Herschel point-source catalogs, 276 of which are new.
Omnarayani Nayak, Alex Green, Alec S. Hirschauer, Rémy Indebetouw, Margaret Meixner, Tony Wong, Mélanie Chevance, Guido De Marchi, Vianney Lebouteiller, Min-Young Lee, Leslie W. Looney, Suzanne C. Madden, Julia Roman-Duval, Yasuo Fukui, Alvaro Hacar, K. E. Jameson, Venu Kalari, Luuk Oudshoorn, Mónica Rubio, Elena Sabbi   +19 more
doaj   +1 more source

A WISE CENSUS OF YOUNG STELLAR OBJECTS IN THE PERSEUS OB2 ASSOCIATION [PDF]

, 2015
We have performed a Wide-Field Infrared Survey Explorer based study to identify and characterize young stellar objects (YSOs) in the 12° × 12° Perseus OB2 association.
M. Azimlu, J. R. Martínez-Galarza, August Muench   +2 more
semanticscholar   +1 more source