Results 41 to 50 of about 170,516 (335)

Pre-main sequence stars in the stellar association N11 in the Large Magellanic Cloud [PDF]

, 2009
Magellanic Clouds are of extreme importance to the study of the star formation process in low metallicity environments. In this paper we report on the discovery of pre-main sequence candidates and young embedded stellar objects in N11 located in the ...
A. Vallenari, Bica, Bonnell, Carrera, Cartwright, Chiosi, Chiosi, Dib, Dirsch, Dolphin, Duquennoy, E. Chiosi, Elmegreen, Girardi, Gouliermis, Gouliermis, Harris, Hatano, Haymond, Heydari-Malayeri, Indebetouw, Israel, Javiel, Keller, Krumholz, Krumholz, Li, McKee, Meixner, Mokiem, Padoan, Pagel, Parker, Prim, R. Sordo, Robitaille, Rosado, Sasao, Schmeja, Schmeja, Siess, Sirianni, Walborn, Whitney   +43 more
core   +1 more source

Clustering Properties of Intermediate and High-mass Young Stellar Objects

The Astronomical Journal, 2023
We have selected 337 intermediate- and high-mass young stellar objects (YSOs; 1.5–20 M _⊙ ) well-characterized with spectroscopy. By means of the clustering algorithm HDBSCAN, we study their clustering and association properties in the Gaia DR3 catalog ...
Miguel Vioque, Manuel Cavieres, Michelangelo Pantaleoni González, Álvaro Ribas, René D. Oudmaijer, Ignacio Mendigutía, Lena Kilian, Héctor Cánovas, Michael A. Kuhn   +8 more
doaj   +1 more source

APEX-CHAMP^+ high-J CO observations of low-mass young stellar objects. IV. Mechanical and radiative feedback [PDF]

, 2015
Context. During the embedded stage of star formation, bipolar molecular outflows and UV radiation from the protostar are important feedback processes.
U. Yıldız, L. Kristensen, E. Dishoeck, M. Hogerheijde, A. Karska, A. Belloche, A. Endo, W. Frieswijk, R. Gusten, T. V. Kempen, S. Leurini, Z. Nagy, J. P'erez-Beaupuits, C. Risacher, N. Marel, R. Weeren, F. Wyrowski   +16 more
semanticscholar   +1 more source

A WISE CENSUS OF YOUNG STELLAR OBJECTS IN CANIS MAJOR [PDF]

Proceedings of the International Astronomical Union, 2015
With the Wide-field Infrared Survey Explorer (WISE), we searched for young stellar objects (YSOs) in a 100 deg2 region centered on the lightly studied Canis Major star-forming region.
W. Fischer, D. Padgett, K. Stapelfeldt, M. Sewiło   +3 more
semanticscholar   +1 more source

Outbursts of Young Stellar Objects

, 2003
We argue that the outbursts of the FU Orionis stars occur on timescales which are much longer than expected from the standard disc instability model with \alpha_{c} \gtrsim 10^{-3}.
Matthews, O. M., Speith, R., Wynn, G. A.
core   +2 more sources

Optically visible post-AGB stars, post-RGB stars and young stellar objects in the Large Magellanic Cloud [PDF]

, 2015
We have carried out a search for optically visible post-Asymptotic Giant Branch (post-AGB) stars in the Large Magellanic Cloud (LMC). First, we selected candidates with a mid-IR excess and then obtained their optical spectra. We disentangled contaminants
D. Kamath, P. Wood, H. Winckel
semanticscholar   +1 more source

Interferometric science results on young stellar objects

, 2009
Long-baseline interferometry at infrared wavelengths allows the innermost regions around young stars to be observed. These observations directly probe the location of the dust and gas in the disks.
Acke, Akeson, Akeson, Akeson, Akeson, Akeson, Berthoud, Boden, Boden, Casse, Colavita, Dullemond, Eisner, Eisner, Eisner, Eisner, Eisner, Eisner, Eisner, F. Malbet, Hartmann, Isella, Isella, Kraus, Kraus, Kraus, Lachaume, Lachaume, Leinert, Li Causi, Malbet, Malbet, Malbet, Millan-Gabet, Millan-Gabet, Millan-Gabet, Millan-Gabet, Monnier, Monnier, Monnier, Muzerolle, Natta, Preibisch, Quanz, Ratzka, Schegerer, Shu, Tannirkulam, Tannirkulam, Tatulli, Thi, Tuthill, van Boekel, Vinković, Vinković, Wilkin, Zhu, Ábrahám   +57 more
core   +1 more source

Disks around massive young stellar objects: are they common? [PDF]

, 2008
We present K-band polarimetric images of several massive young stellar objects at resolutions $\sim$ 0.1-0.5 arcsec. The polarization vectors around these sources are nearly centro-symmetric, indicating they are dominating the illumination of each field.
Itoh Y., Ji Yang, Kahn F. D., Melvin G. Hoare, Miki Ishii, Min Fang, Minchin N. R., Motohide Tamura, Schertl D., Yao Y., Yongqiang Yao, Zhibo Jiang   +11 more
core   +1 more source

A Unified Model for Bipolar Outflows from Young Stars: Kinematic Signatures of Jets, Winds, and Their Magnetic Interplay with the Ambient Toroids

The Astrophysical Journal, 2023
Kinematic signatures of the jet, winds, multicavities, and episodic shells arising in the unified model of bipolar outflows developed in Shang et al.
Hsien Shang, Chun-Fan Liu, Ruben Krasnopolsky, Liang-Yao Wang   +3 more
doaj   +1 more source

The RMS survey: ammonia mapping of the environment of massive young stellar objects [PDF]

, 2015
We present the results of ammonia observations towards 66 massive star forming regions identified by the Red Midcourse Space Experiment Source survey. We have used the Green Bank Telescope and the K-Band Focal Plane Array to map the ammonia (NH3) (1,1 ...
J. Urquhart, C. Figura, T. Moore, T. Csengeri, S. Lumsden, T. Pillai, M. Thompson, D. Eden, L. Morgan, Mpifr, Wartburg College, Ljmu, Leeds, Herts, U. Strasbourg, Met Office   +15 more
semanticscholar   +1 more source