Results 31 to 40 of about 4,213,215 (189)

Millimeter observations of Young Stellar Objects with the CARMA interferometer [PDF]

, 2022
Presento uno studio di 81 young stellar Objects di classe con l'obiettivo di ricavarne la massa in polvere dai flussi ...
Zennaro, Marco
core  

Young Stellar Objects and Herbig-Haro Objects [PDF]

Australian Journal of Physics, 1992
Our current understanding of Herbig-Haro objects and their relationship with young stellar outflows is reviewed. The role of multi-waveband observations in the visible, infrared and radio in the study of outflows is discussed with examples drawn from the HH1, HH24 and HH54 outflow complexes.
openaire   +1 more source

The GRAVITY young stellar object survey

Astronomy & Astrophysics, 2021
Context. 51 Oph is a Herbig Ae/Be star that exhibits strong near-infrared CO ro-vibrational emission at 2.3 μ m, most likely originating in the innermost regions of a circumstellar disc. Aims. We aim to obtain the physical and geometrical properties of the system by spatially resolving the circumstellar environment of the inner gaseous disc.
Koutoulaki, M., Garcia Lopez, R., Natta, A., Fedriani, R., Caratti O Garatti, A., Ray, T., Coffey, D., Brandner, W., Dougados, C., Garcia, P., Klarmann, L., Labadie, L., Perraut, K., Sanchez-Bermudez, J., Lin, C.-C., Amorim, A., Bauböck, M., Benisty, M., Berger, J., Buron, A., Caselli, P., Clénet, Y., Coudé Du Foresto, V., de Zeeuw, P., Duvert, G., de Wit, W., Eckart, A., Eisenhauer, F., Filho, M., Gao, F., Gendron, E., Genzel, R., Gillessen, S., Grellmann, R., Habibi, M., Haubois, X., Haussmann, F., Henning, T., Hippler, S., Hubert, Z., Horrobin, M., Jimenez Rosales, A., Jocou, L., Kervella, P., Kolb, J., Lacour, S., Le Bouquin, J.-B., Léna, P., Linz, H., Ott, T., Paumard, T., Perrin, G., Pfuhl, O., Ramírez-Tannus, M., Rau, C., Rousset, G., Scheithauer, S., Shangguan, J., Stadler, J., Straub, O., Straubmeier, C., Sturm, E., van Dishoeck, E., Vincent, F., von Fellenberg, S., Widmann, F., Wieprecht, E., Wiest, M., Wiezorrek, E., Yazici, S., Zins, G.   +70 more
openaire   +3 more sources

Computation of light scattering in young stellar objects [PDF]

Journal of Quantitative Spectroscopy and Radiative Transfer, 2003
Accepted by The Journal of Quantitative Spectroscopy and Radiative Transfer. Replaced version corrects an error in the definition of the sense of Cpol in the published version and other minor errors found at the proof ...
openaire   +2 more sources

Stellar magnetism : empirical trends with age and rotation [PDF]

, 2014
AAV acknowledges support from a Royal Astronomical Society Fellowship and from the Swiss National Science Foundation via an Ambizione Fellowship. SGG acknowledges support from the Science and Technology Facilities Council (STFC) via an Ernest Rutherford ...
G. Hussain, Jeffers, S., Do Nascimento Jr., J.D., Waite, I.A., R. Fares, Folsom, C. P., Gregory, S. G.; id_orcid, P. Petit, Gregory, S. G., Hussain, G., do Nascimento, J. D., Donati, J. -F., Jardine, M., M. Jardine, Vidotto, A. A., Petit, P., I. A. Waite, Marsden, S., S. Marsden, Vidotto, A. A, Nascimento Júnior, José Dias do, Donati, J.F., J. Bouvier, J. Morin, J. D. Do Nascimento, Nascimento, J. D. Do, C. P. Folsom, Donati, J. F., Morin, J., Bouvier, J., J. F. Donati, Waite, I. A., Gregory, S.G., Jeffers, Sandra V., Fares, R., Hussain, G. A. J., Cameron, A. C., A. A. Vidotto, Morin, Julien, do Nascimento Jr., J.-D., A. C. Cameron, S. Jeffers, Cameron, A.C., S. G. Gregory, Vidotto, A.A., Folsom, C.P.   +45 more
core   +1 more source

Distances to Nearby Molecular Clouds Traced by Young Stars

The Astrophysical Journal Supplement Series, 2023
I present a catalog of distances to 63 molecular clouds located within ∼2.5 kpc of the Sun. The cloud distances are derived based on utilizing the Gaia DR3 parallaxes of the young stellar objects (YSOs). By identifying AllWISE YSO candidates (YSOCs) with
Miaomiao Zhang
doaj   +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

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

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

Magnetic Fields Observed along the East–West Outflow of IRAS 16293-2422

The Astrophysical Journal
Magnetic fields likely play an important role in the formation of young protostars. Multiscale and multiwavelength dust polarization observations can reveal the inferred magnetic field from scales of the cloud to core to protostar.
Frankie J. Encalada, Leslie W. Looney, Giles Novak, Sarah Sadavoy, Erin G. Cox, Fabio Pereira-Santos, Dennis Lee, Rachel Harrison, Kate Pattle   +8 more
doaj   +1 more source