Results 101 to 110 of about 4,213,215 (189)

SPECTRAL EVOLUTION OF YOUNG STELLAR OBJECTS

, 2014
[[abstract]]An evolutionary sequence, from protostars to pre-main sequence stars, for the classification of young stellar objects is derived by comparing the predictions of the theoretical protostar models of Adams and Shu (AS, 1986) with the ...
ADAMS, F.C.;LADA, C.J.;SHU, F.H.
core   +1 more source

Synthetic Modeling of Polarized Dust Emission in Intermediate-mass YSOs. I. Constraining the Role of Iron Inclusions and Inelastic Relaxation on Grain Alignment with ALMA Polarization

The Astrophysical Journal
Iron inclusions embedded inside dust grains play a crucial role in both internal alignment (IA) via Barnett relaxation and external alignment via the MAgnetically Enhanced RAdiative Torque (MRAT) mechanism.
Nguyen Chau Giang, V. J. M. Le Gouellec, Thiem Hoang, A. J. Maury, P. Hennebelle   +4 more
doaj   +1 more source

Dust Polarization of Prestellar and Protostellar Sources in OMC-3

The Astrophysical Journal
We present the Atacama Large Millimeter/submillimeter Array observations of linearly polarized 1.1 mm continuum emission at ∼0.″14 (55 au) resolution and CO ( J = 2−1) emission at ∼1.″5 (590 au) resolution toward one prestellar (MMS 4), four Class 0 (MMS
Yuhua Liu, Satoko Takahashi, Masahiro Machida, Kohji Tomisaka, Josep Miquel Girart, Paul T. P. Ho, Kouichiro Nakanishi, Asako Sato   +7 more
doaj   +1 more source

Characterizing the Multiple Protostellar System VLA 1623-2417 with JWST, ALMA, and VLA: Outflow Origins, Dust Growth, and an Unsettled Disk

The Astrophysical Journal
Utilizing the James Webb Space Telescope (JWST), the Atacama Large Millimeter/submillimeter Array (ALMA), and the Very Large Array (VLA), we present high angular resolution (0 $\mathop{.}\limits^{^{\prime\prime} }$ 06–0 $\mathop{.}\limits^{^{\prime\prime}
Isaac C. Radley, Gemma Busquet, John D. Ilee, Hauyu Baobab Liu, Jaime E. Pineda, Klaus M. Pontoppidan, Enrique Macías, María José Maureira, Eleonora Bianchi, Tyler L. Bourke, Claudio Codella, Jan Forbrich, Josep M. Girart, Melvin G. Hoare, Ricardo Hernández Garnica, Izaskun Jiménez-Serra, Laurent Loinard, Jazmín Ordóñez-Toro, Linda Podio   +18 more
doaj   +1 more source

An investigation of the physical parameters of young stellar objects

, 2011
Studies of the temporal evolution of young stars and their associated properties rely upon the ability of astronomers to determine ages and masses of objects in different evolutionary states.
Deen, Casey Patrick
core  

Spectroscopic constraints on CH₃OH formation: CO mixed with CH₃OH ices towards young stellar objects. [PDF]

Mon Not R Astron Soc, 2015
Penteado EM, Boogert ACA, Pontoppidan KM, Ioppolo S, Blake GA, Cuppen HM.   +5 more
europepmc   +1 more source

An Agent-Based Model of the Stellar Mass Distribution. [PDF]

Entropy (Basel)
Olguín-Rodríguez ER, Gershenson C, Vázquez-Semadeni E.   +2 more
europepmc   +1 more source

Machine learning-enabled membership determination of open cluster AH03_J0748-26.9 using Gaia DR3 astrometry. [PDF]

Sci Rep
Badawy WA, Abdel Rahman HI.
europepmc   +1 more source

Discovery of a star sensitive to the spin of Sagittarius A. [PDF]

Nature
Abd El Dayem K, Abuter R, Aimar N, Amaro-Seoane P, Berdeu A, Berger JP, Bourdarot G, Brandner W, Burkert A, Caldéron D, Correia C, Cuadra J, Davies R, Defrère D, Delit L, Drescher A, Eisenhauer F, Esteras Otal L, Fabricius M, Feuchtgruber H, Flesch S, Förster Schreiber NM, Foschi A, Fournier Q, Garcia P, Garcia Lopez R, Generozov A, Genzel R, Gillessen S, Gonté F, Haubois X, Hönig SF, Houllé M, Joharle S, Kaufer A, Kammerer J, Kervella P, Kolb J, Kreidberg L, Labadie L, Lacour S, Lai O, Laugier R, Le Bouquin JB, Leftley J, Li R, Lopez B, Lutz D, Mang F, Mérand A, Millour F, Montargès M, Morujão N, Nowacki H, Nowak M, Oberti S, Osorno J, Ott T, Paumard T, Paladini C, Pappert S, Perets HB, Perraut K, Perrin G, Petrov R, Petrucci PO, Piran T, Pourré N, Rabien S, Ribeiro DC, Robbe-Dubois S, Sadun Bordoni M, Sanchez-Bermudez J, Santos D, Sari R, Sauter J, Scheithauer S, Scigliuto J, Shangguan J, Shimizu TT, Soulez F, Stadler J, Straubmeier C, Sturm E, Subroweit M, Sykes C, Tacconi LJ, Thévenet P, Urso I, Vincent F, Woillez J, Zins G, GRAVITY+ Collaboration.   +92 more
europepmc   +1 more source

Externally Illuminated Young Stellar Objects in the Orion Nebula

, 2008
. The circumstellar material surrounding most low-mass young stars in the Orion Nebula Cluster is rendered visible by the ionizing radiation of the hot Trapezium stars and the background light of M42.
John Bally
core